Texas Instruments TPS2640EVM User manual

User’s Guide
TPS2640EVM: Evaluation Module for TPS2640
ABSTRACT
This user’s guide describes the evaluation module (EVM) for the Texas instruments TPS2640 devices. The
document provides configuration information and test setup details for working with the EVM. The EVM
schematic, board layout, and bill of materials (BOM) are also included.
Table of Contents
1 Introduction.............................................................................................................................................................................2
1.1 EVM Features.................................................................................................................................................................... 2
1.2 EVM Applications............................................................................................................................................................... 2
2 Description.............................................................................................................................................................................. 3
3 Schematics..............................................................................................................................................................................4
4 General Configurations..........................................................................................................................................................5
4.1 Physical Access................................................................................................................................................................. 5
4.2 Test Equipment.................................................................................................................................................................. 6
4.3 Test Setup.......................................................................................................................................................................... 7
4.4 Test Procedure................................................................................................................................................................... 8
5 EVM Board Assembly Drawings and Layout Guidelines..................................................................................................16
5.1 PCB Drawings..................................................................................................................................................................16
6 Bill Of Materials (BOM).........................................................................................................................................................17
List of Figures
Figure 3-1. TPS2640EVM Schematic..........................................................................................................................................4
Figure 4-1. EVM Test Setup.........................................................................................................................................................7
Figure 4-2. Output Voltage Start-Up Waveform........................................................................................................................... 9
Figure 4-3. J5/J12 = 2-3 Position, Current Limit (2.23 A), Auto-Retry Mode............................................................................. 11
Figure 4-4. J5/J12 = 1-2 Position, Current Limit (2.23 A), Latch-Off Mode................................................................................11
Figure 4-5. Restart From Latch-Off Mode..................................................................................................................................12
Figure 4-6. J5/J12 = Floating, Current Limit (2.23 A), Circuit Breaker With Auto-Retry Mode.................................................. 12
Figure 4-7. Output Short-Circuit Protection............................................................................................................................... 13
Figure 4-8. Reverse Polarity Protection.....................................................................................................................................14
Figure 4-9. Overvoltage Clamp Response................................................................................................................................ 15
Figure 5-1. Top Side Placement................................................................................................................................................ 16
Figure 5-2. Top Layer.................................................................................................................................................................16
Figure 5-3. Bottom Layer........................................................................................................................................................... 16
List of Tables
Table 2-1. TPS2640EVM Options and Setting.............................................................................................................................3
Table 4-1. Input and Output Connector Functionality.................................................................................................................. 5
Table 4-2. Test Points Description............................................................................................................................................... 5
Table 4-3. Jumper and LED Descriptions.................................................................................................................................... 5
Table 4-4. Power Supply Setting for the TPS2640EVM...............................................................................................................8
Table 4-5. Default Jumper Setting for the TPS2640EVM............................................................................................................ 8
Table 4-6. TPS2640EVM DMM Readings at Different Test Points.............................................................................................. 8
Table 4-7. TPS2640EVM Oscilloscope Setting for the Output Voltage Start-Up Test..................................................................9
Table 4-8. TPS2640EVM Oscilloscope Setting for the Current Limit Test................................................................................. 10
Table 4-9. TPS2640EVM Jumper Setting for Current Limits..................................................................................................... 10
Table 4-10. TPS2640EVM Output Short-Circuit Protection Test................................................................................................13
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Table 4-11. TPS2640EVM Reverse Polarity Test.......................................................................................................................14
Table 6-1. TPS2640EVM Bill of Materials..................................................................................................................................17
Trademarks
All other trademarks are the property of their respective owners.
1 Introduction
The TPS2640EVM allows reference circuit evaluation of TI's TPS2640 devices. The TPS2640 are compact 4.2-
V to 42-V, 2.23-A industrial eFuses with integrated back-to-back FETs, programmable undervoltage, overvoltage,
reverse-polarity, overcurrent, inrush current protection, and output current monitoring features.
1.1 EVM Features
The TPS2640EVM features include:
• 4.2-V to 42-V input operating voltage range
• 0.2-A to 2.23-A jumper-programmable current limit
• Reverse polarity protection up to –42 V
• Programmable input UVLO
• Selectable overload fault response (auto-retry, latch and circuit breaker)
• Programmable input overvoltage protection (OVP) cut off
• Programmable VOUT slew rate control
• Load current monitor output with 1.5 V / A
• Optional onboard transient protection devices like input TVS and output Schottky diodes
• Onboard reset switch and fault indicators
1.2 EVM Applications
• HMI power protection in factory automation
• Fire safety systems
• Electronic thermostats and video doorbells
• Industrial PCs
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2 Description
The TPS2640EVM enables full evaluation of the TPS2640 devices. The EVM supports HTSOP and QFN
versions of the devices on two channels (CH1 and CH2, respectively). Input power is applied at T1 (CH1) and T3
(CH2) while T2 (CH1) and T4 (CH2) provide an output connection to the load. See the schematic in Figure 3-1
and the test setup in Figure 4-1.
S1 and S2 allow U1 and U2 to RESET. A fault (FLTb) indicator is provided by D1 and D7 for CH1 and CH2,
respectively. Scaled current for each channel can be monitored at TP5 and TP14 with a scaling factor of
1.5 V / A.
Table 2-1. TPS2640EVM Options and Setting
Part Number EVM Function VIN Range
VIN UVLO VINOVP Current Limit
Output
Overvoltage
Selectable Fault
Response
CH1 and
CH2
CH1 and
CH2
Minimum
Setting
Maximum
Setting
TPS2640EVM 4.2-V to 42-V,
2.23-A Industrial eFuse 4.2 V–42 V 18.5 V 34.8V 0.2 A(1) 2.23 A 38 V
Auto retry
Latch off
Circuit Breaker
(1) Minimum programmable current limit can be changed to 0.1 A by changing the R12 and R24 values to 120 kΩ on CH1 and CH2,
respectively.
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3 Schematics
Figure 3-1 illustrates the EVM schematic.
12 34 56 78
J5
TP1
FLTb1
VOUT1=4.5V-42V
IOUT1=0.2A -2.23A
Red
1 2
D1
LED
T2
VOUT1
T1
VIN1
8.06k
R10
5.36k
R9
1
2
J2
24.3k
R1
Green
12
D6
LED
24.3k
R5
VIN1=4.5V to 42V
IIN1=0.2A-2.23A 47uF
63V
C5
30.1k
R8
1
2
3
J4
20.0k
R6
402k
R7
1
2
J1
GND
TP5
IMON1
TP6
RTN1
TP7
GND
TP2
VIN1
TP3
VOUT1
TP4
SHDNb1
12.1k
R11
60.4k
R12
RTN1
1
2
J3
TP8
GND
TP9
GND
1uF
100V
C4
12 34 56 78
J12
TP10
FLTb2
VOUT2=4.5V-42V
IIN2=0.2A-2.23A
Red
1 2
D7
LED
T4
VOUT2
T3
VIN2
8.06k
R22
5.36k
R21
1
2
J9
24.3k
R13
Green
12
D9
LED
24.3k
R16
VIN2=4.5V to 42V
IIN2=0.2A-2.23A 47uF
63V
C9
30.1k
R20
1
2
3
J11
20.0k
R18
402k
R19
1
2
J8
GND
TP14
IMON2
TP15
RTN2
TP16
GND
TP11
VIN2
TP12
VOUT2
TP13
SHDNb2
12.1k
R23
60.4k
R24
RTN2
1
2
J10
TP17
GND
TP18
GND
1uF
100V
C11
Vout1
Vout1Vin1
Vin1
Vin2
Vin2
Vout2
Vout2
1
2
J6
1
2
J13
100k
R4
100k
R17
36V
D4
36V
D10
1 2
36V
D2
1 2
36V
D8
1
2
J15
1
2
J16
D3
D5
0.1uF
C1
0.1uF
C7
TPS26400PWPR
IN
1
IN
2OUT 15
OUT 16
FLT 14
SHDN 7
dVdT
12
ILIM 11
IMON 10
MODE
6
OVP
5
RTN
8
UVLO
3
NC
4
NC
13 GND 9
PowerPAD 17
U1
1
2
3
J7
1
2
3
J14
OUT_OVP2
OUT_OVP2
OUT_OVP1
OUT_OVP1
TPS26400RHFR
IN
8
IN
9OUT 23
OUT 24
FLT 22
SHDN 14
dVdT
20 ILIM 19
IMON 18 MODE
13
OVP
12
PowerPAD 25
RTN
15
UVLO
10
NC
1
NC
2
NC
3
NC
4
NC
5
NC 6
NC 7
NC 11
NC 16
NC 21
GND 17
U2
RTN1
RTN2
26.7k
R3
825k
R2
26.7k
R15
825k
R14
3.24k
R30
3.24k
R28
100k
R27
100k
R29
24.3k
R25
24.3k
R26
22nF
16V
C12
22nF
16V
C6
100V
1µF
C2
100V
1µF
C3
100V
1µF
C8
100V
1µF
C10
21
S1
21
S2
Figure 3-1. TPS2640EVM Schematic
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4 General Configurations
4.1 Physical Access
Table 4-1 lists the TPS2640EVM input and output connector functionality, Table 4-2 describes the test point
availability, and Table 4-3 describes the jumper functionality.
Table 4-1. Input and Output Connector Functionality
Connector Label Description
T1 CH1 VIN1(+), GND(–) CH1 input power supply to the EVM
T2 VOUT1(+), GND(–) CH1 output from the EVM
T3 CH2 VIN2(+), GND(–) CH2 input power supply to the EVM
T4 VOUT2(+), GND(–) CH2 output from the EVM
Table 4-2. Test Points Description
Channel Test Points Label Description
CH1 TP1 FLTb1 CH1 fault indicator
TP2 VIN1 CH1 power supply input
TP3 VOUT1 CH1 output voltage
TP4 SHDNb1 CH1 shutdown input
TP5 IMON1 CH1 output current monitor
TP7, TP8, TP9 GND GND
CH2 TP10 FLTb2 CH2 fault indicator
TP11 VIN2 CH2 power supply input
TP12 VOUT2 CH2 output voltage
TP13 SHDNb2 CH2 shutdown input
TP14 IMON2 CH2 output current monitor
TP16, TP17, TP18 GND GND
Table 4-3. Jumper and LED Descriptions
Jumper Label Description
J1 J1 CH1 fault LED pulled to VIN1, if installed
J2 J2 CH1 output power indicator LED pulled to VOUT1, if installed
J3 J3 CH1 bulk output capacitor connects to VOUT1, if installed
J4 MODE CH1 MODE selection
spac1-2 position sets latch-off mode
spac2-3 position sets auto-retry mode
spacOpen position sets circuit breaker with auto-retry mode
J5 ILIM CH1 current limit setting
spac1-2 position sets 2.23 A
spac3-4 position sets 1.5 A
spac5-6 position sets 1 A
spac7-8 position sets 0.2 A
J6 UVLO CH1 UVLO setting
spacSets internal UVLO (15 V), if installed
J7 OVP CH1 OVP setting
spac1-2 position sets Vout OVP (38 V) and 2-3 sets VIN OVP at 34.8 V
J8 J8 CH2 fault LED pulled to VIN2, if installed
J9 J9 CH2 output power indicator LED pulled to VOUT2, if installed
J10 J10 CH2 bulk output capacitor connects to VOUT1, if installed
J11 MODE CH2 MODE selection
spac1-2 position sets latch-off mode
spac2-3 position sets auto-retry mode
spacOpen position sets circuit breaker with auto-retry mode
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Table 4-3. Jumper and LED Descriptions (continued)
Jumper Label Description
J12 ILIM CH2 current limit setting
spac1-2 position sets 2.23 A
spac3-4 position sets 1.5 A
spac5-6 position sets 1 A
spac7-8 position sets 0.2 A
J13 UVLO CH2 UVLO setting
spacSets internal UVLO (15 V), if installed
J14 OVP CH2 OVP setting
spac1-2 position sets Vout OVP (38 V) and 2-3 sets Vin OVP at 34.8 V
J15 J15 CH1 input capacitor connects to VIN1, if installed
J16 J16 CH1 input capacitor connects to VIN2, if installed
D1, D7 (RED-
LED)
Fault LED CH1, CH2 fault indicators, respectively. LED turns on when the internal MOSFET is disabled due to
any fault condition such as undervoltage, overvoltage, overload, short circuit, reverse current, and
thermal shutdown.
D6, D9 (GREEN-
LED)
Output power
indicator
CH1, CH2 output power indicators, respectively. LED turns on whenever the output voltage is
available.
4.2 Test Equipment
4.2.1 Power Supplies
One adjustable power supply: 0-V to 42-V output, 0-A to 3-A output current limit.
4.2.2 Meters
One DMM minimum needed and may require more if simultaneous measurements are required.
4.2.3 Oscilloscope
A DPO2024, or equivalent. Three 10x voltage probes and one DC current probe.
4.2.4 Loads
One resistive load which can tolerate up to 3-A DC load at 24 V.
Note
A resistive load is recommended for testing. If an electronic load is used, ensure that the output load is
set in the constant resistance (CR) mode, not in the constant current (CC) mode.
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4.3 Test Setup
Figure 4-1 shows the typical test setup for the TPS2640EVM. Connect T1/T3 to the power supply and T2/T4 to
the load.
Figure 4-1. EVM Test Setup
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4.4 Test Procedure
Note
CH1 and CH2 can be tested one by one with a single power supply and the load.
4.4.1 Preliminary Tests
1. Turn on the power supply and set the output voltage and the current limit according to Table 4-4.
Table 4-4. Power Supply Setting for the TPS2640EVM
EVM Channel Voltage Set Point Power Supply Current
Limit
TPS2640EVM CH1 24 V 3 A
CH2 24 V 3 A
2. Turn on the load and set the load resistance to 16 Ω ±1 Ω.
3. Disable the power supply, load and hook up the TPS2640EVM assembly as shown in Figure 4-1.
4. Make sure the default evaluation board jumper settings are as shown in Table 4-5.
Table 4-5. Default Jumper Setting for the TPS2640EVM
J1 J2 J3 J4 J5 J6 J7 J15
CH1 Install Install Open 2-3 1-2 Open 2-3 Install
J8 J9 J10 J11 J12 J13 J14 J16
CH2 Install Install Open 2-3 1-2 Open 2-3 Install
5. Enable the power supply and the load.
6. Connect the negative probe of the DMM to TP7 or TP18 test points, the positive probe to the respective test
points, and verify that the voltages shown in Table 4-6 are obtained.
Table 4-6. TPS2640EVM DMM Readings at Different Test Points
Voltage Test on (CH1) Measured Voltage Reading Voltage Test on (CH2) Measured Voltage Reading
VIN1 (TP2) 24 V ±1 V DC VIN2 (TP11) 24 V ±1 V DC
VOUT1 (TP3) 24 V ±1 V DC VOUT2 (TP12) 24 V ±1 V DC
IMON1 (TP5) 2.3 V ±0.2 V DC IMON2 (TP14) 2.3 V ±0.2 V DC
FLTb1 (TP1) 22.6 V ±0.5 V DC FLTb2 (TP10) 22.6 V ±0.5 V DC
SHDNb1 (TP4) 2.7 V ±0.5 V DC SHDNb2 (TP13) 2.7 V ±0.5 V DC
7. Press the CH1/CH2 shutdown switch S1/S2 and verify the CH1/CH2 output voltage VOUT1/VOUT2 drops to
zero. Release the S1/S2 switch and verify the output voltage resumes to nominal 24 V ±1 V.
8. Disable the power supply and the load.
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4.4.2 Output Voltage Start-Up Time Test
Follow the instructions to verify the individual channels output voltage start-up time:
1. Set up the oscilloscope as listed in Table 4-7.
2. Set the load resistance to 16 Ω ±1 Ω and the power supply voltage to 24 V.
3. Enable the load.
4. Enable the power supply and verify that the output voltage startup waveform is as shown in Figure 4-2.
Table 4-7. TPS2640EVM Oscilloscope Setting for the Output Voltage Start-Up Test
Oscilloscope Setting CH1 Probe Points CH2 Probe Points
Channel 1 = 10 V / div VOUT1 (TP3) VOUT2 (TP12)
Channel 2 = 10 V / div VIN1 (TP2) VIN2 (TP11)
Channel 3 = 20 V / div FLTb1 (TP1) FLTb2 (TP10)
Channel 4 = 1 A / div Input current into T1 +Ve wire Input current into T3 +Ve wire
Trigger source = Channel 1
Trigger level = 12 V ±1 V
Trigger polarity = Rising
Trigger mode = Single
Time base 2 ms / div
Figure 4-2. Output Voltage Start-Up Waveform
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4.4.3 Current Limit and Fault Responses Test
Follow the instructions to verify the current limit and various fault response modes like auto-retry, latch and circuit
breaker with auto-retry:
1. Set up the oscilloscope as listed in Table 4-8.
Table 4-8. TPS2640EVM Oscilloscope Setting for the Current Limit Test
Oscilloscope Setting CH1 Probe Points CH2 Probe Points
Channel 1 = 10V / div VOUT1 (TP3) VOUT2 (TP12)
Channel 2 = 10V / div VIN1 (TP2) VIN2 (TP11)
Channel 4 = 2 A / div Input current into T1 +Ve wire Input current into T3 +Ve wire
Trigger source = Channel 2
Trigger level = 12 V ±1V
Trigger polarity = Rising
Trigger mode = Single
Time base 100 ms / div
Note
Measuring the current limit value on the oscilloscope can easily cause ±10% error from the typical
expected values as listed in Table 4-9.
2. Set the current limit to 2.23 A by installing the J5/J12 jumper in position 1-2.
3. The jumper setting for different current limits is shown in Table 4-9.
4. Set the current limit response to auto-retry by installing the J4/J11 jumper in position 2-3.
Table 4-9. TPS2640EVM Jumper Setting for Current Limits
CH1, CH2 Jumper Positions (J5, J12) Load Current Limit (A)
1-2 2.23
3-4 1.5
5-6 1
7-8 0.2
5. Set the load resistance to 6 Ω ±1 Ω and the power supply voltage to 24 V.
6. Enable the load.
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7. Enable the power supply and verify the current limit magnitude and auto-retry fault response waveform as
shown in Figure 4-3.
Figure 4-3. J5/J12 = 2-3 Position, Current Limit (2.23 A), Auto-Retry Mode
8. Disable the power supply.
9. Set the current limit response mode to latch-off by installing the J4/J11 jumper in the position 1-2.
10.Set the load resistance to 6 Ω ±1 Ω and enable the load.
11.Enable the power supply and verify the current limit magnitude the latch-off fault response waveform as
shown in the Figure 4-4.
Figure 4-4. J5/J12 = 1-2 Position, Current Limit (2.23 A), Latch-Off Mode
12.Once the device is latched-off, either the power supply or the SHDNb should be recycled to re-enable it.
13.Change the load resistance to 16 Ω ±1 Ω.
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14.Press and release the reset switch (S1/S2) to re-enable the device from latch-off mode and verify the
recovery or restart waveform as shown in Figure 4-5.
Figure 4-5. Restart From Latch-Off Mode
15.Disable the power supply.
16.Set the current limit response mode to circuit breaker with auto-retry by uninstalling the J4/J11 jumper.
17.Set the load resistance to 6 Ω ±1 Ω and enable the load.
18.Enable the power supply and verify the circuit breaker with auto retry fault response waveform as shown in
Figure 4-6.
Figure 4-6. J5/J12 = Floating, Current Limit (2.23 A), Circuit Breaker With Auto-Retry Mode
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4.4.4 Output Short-Circuit Protection Test
Follow the instructions to verify the output short-circuit protection feature of the device:
1. Set up the oscilloscope as listed in Table 4-10.
Table 4-10. TPS2640EVM Output Short-Circuit Protection Test
Oscilloscope Setting CH1 Probe Points CH2 Probe Points
Channel 1 = 10 V / div VOUT1 (TP3) VOUT2 (TP12)
Channel 2 = 10 V / div VIN1 (TP2) VIN2 (TP11)
Channel 3 = 20 V / div FLTb1 (TP1) FLTb2 (TP10)
Channel 4 = 2 A / div Input current into T1 +Ve wire Input current into T3 +Ve wire
Trigger source = Channel 1
Trigger level = 12 V ±1 V
Trigger polarity = Falling
Trigger mode = Single
Time base 2 ms / div
2. Set the load resistance to 16 Ω ±1 Ω and the power supply voltage to 24 V.
3. Enable the load and the power supply.
4. Use either wire or FET to short the output to ground and verify the output short-circuit response waveform as
shown in Figure 4-7.
Figure 4-7. Output Short-Circuit Protection
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4.4.5 Reverse Polarity Test
Follow the instructions to verify the reverse polarity protection feature of the device:
1. Set up the oscilloscope as listed in Table 4-11.
Table 4-11. TPS2640EVM Reverse Polarity Test
Oscilloscope Setting CH1 Probe Points CH2 Probe Points
Channel 1 = 10 V / div VOUT1 (TP3) VOUT2 (TP12)
Channel 2 = 10 V / div VIN1 (TP2) VIN2 (TP11)
Trigger source = Channel 1
Trigger level = –12 V ±1 V
Trigger polarity = Falling
Trigger mode = Single
Time base 10 ms / div
2. Set the power supply voltage to 42 V and disable the power supply.
3. Connect +ve terminal of the power supply to either T1/T3 –ve terminal, connect –ve terminal of the power
supply to either T1/T3 +ve terminal.
4. Enable the power supply and verify the reverse polarity protection waveform as shown in Figure 4-8.
Figure 4-8. Reverse Polarity Protection
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4.4.5.1 Overvoltage Clamp Response
Follow the instructions to verify the Overvoltage clamp response of the device:
1. Set J7 in 1-2 position
2. Set the power supply to 28 V and load of 1 A at the output.
3. Now apply transient input voltage (28 V to 40 V) for 20 ms and verify the Overvoltage clamp response as
Figure 4-9 shows.
Figure 4-9. Overvoltage Clamp Response
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5 EVM Board Assembly Drawings and Layout Guidelines
5.1 PCB Drawings
Figure 5-1 through Figure 5-3 show component placement and layout of the EVM.
Figure 5-1. Top Side Placement
Figure 5-2. Top Layer
Figure 5-3. Bottom Layer
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6 Bill Of Materials (BOM)
Table 6-1 displays the EVM BOM.
Table 6-1. TPS2640EVM Bill of Materials
Designator QTY Value Description Package Reference Part Number Manufacturer Alternate Part
Number(1)
Alternate
Manufacturer(1)
!PCB1 1 Printed Circuit Board PSIL137 Any
C1, C7 2 0.1uF CAP, CERM, 0.1 uF, 100 V, ±10%, X7R,
AEC-Q200 Grade 1, 1206
1206 CGA5L2X7R2A104K160AA TDK
C2, C3, C8,
C10
4 1uF CAP, CERM, 1 µF, 100 V, ±10%, X7R, 1206 1206 CC1206KKX7R0BB105 Yageo America
C5, C9 2 47uF CAP, AL, 47 uF, 63 V, ±20%, SMD SMT Radial G EEETG1J470P Panasonic
C6, C12 2 0.022uF CAP, CERM, 0.022 uF, 16 V, ±10%, X7R,
0603
0603 C0603C223K4RACTU Kemet
D1, D7 2 Red LED, Red, SMD Red LED, 1.6x0.8x0.8mm LTST-C190CKT Lite-On
D2, D8 2 Diode TVS Single Bi-Dir 36V 600W 2-Pin
SMB
DO-214AA SMBJ36CA Littelfuse
D3, D5 2 50V Diode, Schottky, 50 V, 2 A, SMA SMA B250A-13-F Diodes Inc.
D4, D10 2 36V Diode, TVS, Bi, 36 V, 58.1 Vc, SMC SMC SMCJ36CA Littelfuse
D6, D9 2 Green LED, Green, SMD 1.6x0.8x0.8mm LTST-C190GKT Lite-On
H1, H2, H3, H4 4 Bumpon, Hemisphere, 0.44 X 0.20, Clear Transparent Bumpon SJ-5303 (CLEAR) 3M
J1, J2, J3, J6,
J8, J9, J10,
J13, J15, J16
10 Header, 100mil, 2x1, Gold, TH Sullins 100mil, 1x2, 230 mil
above insulator
PBC02SAAN Sullins Connector
Solutions
J4, J7, J11, J14 4 Header, 100mil, 3x1, Tin, TH Header, 3 PIN, 100mil, Tin PEC03SAAN Sullins Connector
Solutions
J5, J12 2 Header, 100mil, 4x2, Tin, TH Header, 4x2, 100mil, Tin PEC04DAAN Sullins Connector
Solutions
R1, R5, R13,
R16, R25, R26
6 24.3k RES, 24.3 k, 1%, 0.1 W, AEC-Q200 Grade
0, 0603
0603 CRCW060324K3FKEA Vishay-Dale
R2, R14 2 825k RES, 825 k, 1%, 0.1 W, 0603 0603 RC0603FR-07825KL Yageo
R3, R15 2 26.7k RES, 26.7 k, 1%, 0.1 W, AEC-Q200 Grade
0, 0603
0603 CRCW060326K7FKEA Vishay-Dale
R4, R17 2 100k RES, 100 k, 1%, 0.1 W, AEC-Q200 Grade 0,
0603
0603 CRCW0603100KFKEA Vishay-Dale
R6, R18 2 20.0k RES, 20.0 k, 1%, 0.1 W, AEC-Q200 Grade
0, 0603
0603 CRCW060320K0FKEA Vishay-Dale
R7, R19 2 402k RES, 402 k, 1%, 0.1 W, AEC-Q200 Grade 0,
0603
0603 CRCW0603402KFKEA Vishay-Dale
R8, R20 2 30.1k RES, 30.1 k, 1%, 0.1 W, AEC-Q200 Grade
0, 0603
0603 CRCW060330K1FKEA Vishay-Dale
www.ti.com Bill Of Materials (BOM)
SLVUBX9 – OCTOBER 2020
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TPS2640EVM: Evaluation Module for TPS2640 17
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Table 6-1. TPS2640EVM Bill of Materials (continued)
Designator QTY Value Description Package Reference Part Number Manufacturer Alternate Part
Number(1)
Alternate
Manufacturer(1)
R9, R21 2 5.36k RES, 5.36 k, 1%, 0.1 W, AEC-Q200 Grade
0, 0603
0603 CRCW06035K36FKEA Vishay-Dale
R10, R22 2 8.06k RES, 8.06 k, 1%, 0.1 W, AEC-Q200 Grade
0, 0603
0603 CRCW06038K06FKEA Vishay-Dale
R11, R23 2 12.1k RES, 12.1 k, 1%, 0.1 W, AEC-Q200 Grade
0, 0603
0603 CRCW060312K1FKEA Vishay-Dale
R12, R24 2 60.4k RES, 60.4 k, 1%, 0.1 W, AEC-Q200 Grade
0, 0603
0603 CRCW060360K4FKEA Vishay-Dale
R27, R29 2 100k RES, 100 k, 1%, 0.1 W, 0603 0603 RC0603FR-07100KL Yageo
R28, R30 2 3.24k RES, 3.24 k, 1%, 0.1 W, 0603 0603 RC0603FR-073K24L Yageo
S1, S2 2 Switch, SPST-NO, 0.05 A, 12 VDC, SMT 3.9x2.9mm SKRKAEE020 Alps
SH-J1, SH-J2,
SH-J3, SH-J4,
SH-J5, SH-J6,
SH-J7, SH-J8,
SH-J9, SH-J10,
SH-J11, SH-
J12, SH-J13,
SH-J14, SH-
J15, SH-J16
16 1x2 Shunt, 100mil, Flash Gold, Black Closed Top 100mil Shunt SPC02SYAN Sullins Connector
Solutions
T1, T2, T3, T4 4 Terminal Block, 2x1, 5.08mm, TH 10.16x15.2x9mm 282841-2 TE Connectivity
TP1, TP4, TP5,
TP10, TP13,
TP14
6 White Test Point, TH, Multipurpose, White Keystone5012 5012 Keystone Equivalent Any
TP2, TP3,
TP11, TP12
4 Red Test Point, Multipurpose, Red, TH Red Multipurpose Testpoint 5010 Keystone
TP6, TP15 2 Black Test Point, Multipurpose, Black, TH Black Multipurpose Testpoint 5011 Keystone
TP7, TP8, TP9,
TP16, TP17,
TP18
6 SMT Test Point, SMT, Compact Testpoint_Keystone_Compact 5016 Keystone Equivalent Any
U1 1 42-V, 2-A Industrial eFuse With Integrated
Reverse Input Polarity Protection
HTSSOP16 TPS26400PWPR Texas Instruments
U2 1 42-V, 2-A Industrial eFuse With Integrated
Reverse Input Polarity Protection
VQFN24 TPS26400RHFR Texas Instruments
C4, C11 0 1uF CAP, CERM, 1 uF, 100 V, ±10%, X7R, 1206 1206 GRM31CR72A105KA01L MuRata
FID1, FID2,
FID3
0 Fiducial mark. There is nothing to buy or
mount.
N/A N/A N/A
(1) Unless otherwise noted in the Alternate Part Number or Alternate Manufacturer columns, all parts may be substituted with equivalents.
Bill Of Materials (BOM) www.ti.com
18 TPS2640EVM: Evaluation Module for TPS2640 SLVUBX9 – OCTOBER 2020
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Copyright © 2020 Texas Instruments Incorporated

STANDARD TERMS FOR EVALUATION MODULES
1. Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, and/or
documentation which may be provided together or separately (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance
with the terms set forth herein. User's acceptance of the EVM is expressly subject to the following terms.
1.1 EVMs are intended solely for product or software developers for use in a research and development setting to facilitate feasibility
evaluation, experimentation, or scientific analysis of TI semiconductors products. EVMs have no direct function and are not
finished products. EVMs shall not be directly or indirectly assembled as a part or subassembly in any finished product. For
clarification, any software or software tools provided with the EVM (“Software”) shall not be subject to the terms and conditions
set forth herein but rather shall be subject to the applicable terms that accompany such Software
1.2 EVMs are not intended for consumer or household use. EVMs may not be sold, sublicensed, leased, rented, loaned, assigned,
or otherwise distributed for commercial purposes by Users, in whole or in part, or used in any finished product or production
system.
2Limited Warranty and Related Remedies/Disclaimers:
2.1 These terms do not apply to Software. The warranty, if any, for Software is covered in the applicable Software License
Agreement.
2.2 TI warrants that the TI EVM will conform to TI's published specifications for ninety (90) days after the date TI delivers such EVM
to User. Notwithstanding the foregoing, TI shall not be liable for a nonconforming EVM if (a) the nonconformity was caused by
neglect, misuse or mistreatment by an entity other than TI, including improper installation or testing, or for any EVMs that have
been altered or modified in any way by an entity other than TI, (b) the nonconformity resulted from User's design, specifications
or instructions for such EVMs or improper system design, or (c) User has not paid on time. Testing and other quality control
techniques are used to the extent TI deems necessary. TI does not test all parameters of each EVM.
User's claims against TI under this Section 2 are void if User fails to notify TI of any apparent defects in the EVMs within ten (10)
business days after delivery, or of any hidden defects with ten (10) business days after the defect has been detected.
2.3 TI's sole liability shall be at its option to repair or replace EVMs that fail to conform to the warranty set forth above, or credit
User's account for such EVM. TI's liability under this warranty shall be limited to EVMs that are returned during the warranty
period to the address designated by TI and that are determined by TI not to conform to such warranty. If TI elects to repair or
replace such EVM, TI shall have a reasonable time to repair such EVM or provide replacements. Repaired EVMs shall be
warranted for the remainder of the original warranty period. Replaced EVMs shall be warranted for a new full ninety (90) day
warranty period.
WARNING
Evaluation Kits are intended solely for use by technically qualified,
professional electronics experts who are familiar with the dangers
and application risks associated with handling electrical mechanical
components, systems, and subsystems.
User shall operate the Evaluation Kit within TI’s recommended
guidelines and any applicable legal or environmental requirements
as well as reasonable and customary safeguards. Failure to set up
and/or operate the Evaluation Kit within TI’s recommended
guidelines may result in personal injury or death or property
damage. Proper set up entails following TI’s instructions for
electrical ratings of interface circuits such as input, output and
electrical loads.
NOTE:
EXPOSURE TO ELECTROSTATIC DISCHARGE (ESD) MAY CAUSE DEGREDATION OR FAILURE OF THE EVALUATION
KIT; TI RECOMMENDS STORAGE OF THE EVALUATION KIT IN A PROTECTIVE ESD BAG.

www.ti.com
2
3Regulatory Notices:
3.1 United States
3.1.1 Notice applicable to EVMs not FCC-Approved:
FCC NOTICE: This kit is designed to allow product developers to evaluate electronic components, circuitry, or software
associated with the kit to determine whether to incorporate such items in a finished product and software developers to write
software applications for use with the end product. This kit is not a finished product and when assembled may not be resold or
otherwise marketed unless all required FCC equipment authorizations are first obtained. Operation is subject to the condition
that this product not cause harmful interference to licensed radio stations and that this product accept harmful interference.
Unless the assembled kit is designed to operate under part 15, part 18 or part 95 of this chapter, the operator of the kit must
operate under the authority of an FCC license holder or must secure an experimental authorization under part 5 of this chapter.
3.1.2 For EVMs annotated as FCC – FEDERAL COMMUNICATIONS COMMISSION Part 15 Compliant:
CAUTION
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not
cause harmful interference, and (2) this device must accept any interference received, including interference that may cause
undesired operation.
Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to
operate the equipment.
FCC Interference Statement for Class A EVM devices
NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of
the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to
correct the interference at his own expense.
FCC Interference Statement for Class B EVM devices
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of
the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance
with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which
can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more
of the following measures:
•Reorient or relocate the receiving antenna.
•Increase the separation between the equipment and receiver.
•Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
•Consult the dealer or an experienced radio/TV technician for help.
3.2 Canada
3.2.1 For EVMs issued with an Industry Canada Certificate of Conformance to RSS-210 or RSS-247
Concerning EVMs Including Radio Transmitters:
This device complies with Industry Canada license-exempt RSSs. Operation is subject to the following two conditions:
(1) this device may not cause interference, and (2) this device must accept any interference, including interference that may
cause undesired operation of the device.
Concernant les EVMs avec appareils radio:
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation
est autorisée aux deux conditions suivantes: (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit
accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.
Concerning EVMs Including Detachable Antennas:
Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser)
gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type
and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for
successful communication. This radio transmitter has been approved by Industry Canada to operate with the antenna types
listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated.
Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited
for use with this device.