Texas Instruments LM61460-Q1 EVM User manual

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LM61460-Q1 EVM User's Guide
User's Guide
SNVU621C–May 2019–Revised December 2019
LM61460-Q1 EVM User's Guide
The LM61460-Q1 evaluation module (EVM) is designed to help customers evaluate the performance of
the LM61460-Q1 synchronous step-down voltage converter. This EVM implements the LM61460-Q1 in a
14-pin wettable flanks Hotrod™ package, as shown in Table 1. It is capable of delivering 5-V output
voltage and up to 6-A load current with exceptional efficiency and output accuracy in a very small solution
size. The EVM provides multiple power connectors and test points. It also provides a good layout
example, which is optimized for EMI and thermal performance.
Table 1. Device and Package Configurations
CONVERTER IC PACKAGE
U1 LM61460-Q1 14-pin wettable flanks Hotrod package 4.0 mm × 3.5 mm × 1.0 mm
Figure 1. LM61460EVM Front Figure 2. LM61460EVM Angle

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Contents
1 Introduction ................................................................................................................... 2
2 Quick Start.................................................................................................................... 3
3 Detailed Descriptions........................................................................................................ 5
4 Schematic..................................................................................................................... 6
5 Board Layout ................................................................................................................. 9
6 LM61460EVM Board Test Results....................................................................................... 10
7 Bill of Materials ............................................................................................................. 16
Trademarks
Hotrod is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.
1 Introduction
1.1 LM61460 Synchronous Step-Down Voltage Converter
The LM61460-Q1 device is an easy-to-use synchronous step-down DC/DC converter capable of driving
up to 6 A of load current from a supply voltage ranging from 3 V to 36 V. The LM61460-Q1 provides
exceptional efficiency and output accuracy in a very small solution size. The LM61460-Q1 is capable of
delivering 6 A of load current and is peak current limit controlled. The following are additional features that
provide both flexible and easy-to-use solutions for a wide range of applications:
• Adjustable switching frequency
• Synchronization to an external clock
• FPWM variant (LM61460AFS)
• Power-good flag
• Precision enable
Automatic frequency foldback at light load and optional external bias improve efficiency over the entire
load range. The device requires few external components and has a pinout designed for optimal EMI and
thermal performance. Protection features include the following:
• Thermal shutdown
• Input undervoltage lockout
• Cycle-by-cycle current limiting
• Hiccup short-circuit protection
The LM61460-Q1 device is pin-to-pin compatible with the LM61440-Q1 for easy output current scaling.
For a quick reference, Figure 3 shows the pin configuration of the LM61460-Q1 and Figure 4 shows the
simplified schematic. See the LM61460-Q1 Automotive 3-V to 36-V, 6-A, Low-Noise Synchronous Step-
Down Converter Data Sheet for more detailed feature descriptions and design guide.

LM61460-Q1
RESET
EN/SYNC
RT
PGND1
AGND
VCC
CBOOT
SW
FB
BIAS
RBOOT
3.0 V to 36 V input
VIN1
PGND2
VIN2
3.5 mm
4 mm
BIAS
CBOOT RBOOT
EN/
SYNC
RESET
VIN1 VIN2
PGND1 PGND2
SW
FB
AGND
VCC
RT
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/RESET and PGOOD are used to describe the same device
pin throughout this document and other documents. Be aware
that these pin nomenclatures are used to describe the same
pin.
Figure 3. LM61460-Q1 Pin Configuration (Top View) Figure 4. LM61460-Q1 Schematic
1.2 LM61460-Q1 Evaluation Module
The LM61460-Q1 EVM has the board populated with the LM61460 in either one of two variants. Based on
the label populated, you can figure out which device trim is populated on the EVM and the corresponding
features. This board uses the LM61460-Q1 and limiting current to 6 A and comes with auto mode enabled.
Table 2. EVM Variants
LABEL U1 IOUT SWITCHING
FREQUENCY VIN RANGE VOUT AUTO MODE FPWM SPREAD SPECTRUM
LM61460EV
M-AS-400K LM61460AA SQRJRRQ1 6 A 400 kHz 3 to 36 V 5 V Enabled Disabled Enabled
LM61460EV
M-FS-400K LM61460AF SQRJRRQ1 6 A 400 kHz 3 to 36 V 5 V Disabled Enabled Enabled
2 Quick Start
1. Connect the voltage supply between the VIN and GND connectors or between VIN_EMI and
GND_EMI to include the on-board input filter in the input path. Use short and thick gauge wires to
minimize inductance and IR drop. Note that sense points for VIN and VOUT are provided.
2. Connect the load of the converter between VOUT and GND connectors using short and thick wires.
3. Set the supply voltage at an appropriate level between 6 V to 36 V. The 6 V minimum ensures enough
head room for VOUT to equal 5 V at a 6 A load current. Set the current limit of the supply to an
appropriate level to supply needed current and protection.
4. Turn on the power supply. With the default configuration, the EVM powers up and provides VOUT = 5 V.
5. Monitor the output voltage with sense points. The maximum load current must be 6 A with the
LM61460-Q1. Note that the maximum output current may need to derate if ambient temperature is
high, especially if device is operated at higher frequency, ie: 2.2MHz.
See Figure 5 for connector locations.

CAUTION
Caution Hot surface.
Contact may cause burns.
Do not touch.
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Figure 5. Top View of LM61460-Q1 EVM

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3 Detailed Descriptions
This section describes the connectors on the EVM and how to properly connect, set up, and use the EVM.
See Figure 5 for a top view of the EVM.
VOUT —Output voltage of the converter
VOUT connectors connect to the power inductor and output capacitors. Connect the load between
VOUT connector and the GND connector right next to it to provide load current. Connect the
loading device to the board with short and thick wires to handle the large DC output current.
GND —Ground of the converter
The GND is connected to the PGND and AGND pins of the device, as well as the ground of the
input and output capacitors. The GND connections next to VIN, VIN_EMI, and VOUT connectors
are meant for current return path for the supply voltage and load, respectively. Connectors are
provided in pairs to allow easy and accurate sensing of voltages. Connect to supply and load
grounds with short and thick wires. Other GND connectors are for signal measurement and probing.
VIN—Input voltage to the converter
The VIN connector connects to the input capacitors and the VIN pins of the LM61460-Q1. Connect
the supply voltage from a power supply or a battery between VIN and GND connectors as power
input to the device. The voltage range must be higher than 3.9 V for the device to start up. VIN
higher than 6 V provides regulated 5 V output voltage. VIN must be no higher than 36 V to avoid
damaging the device. After start-up, the device stays active until VIN drops below 3 V. The current
limit on the supply must be high enough to provide the needed supply current. Otherwise, the
supply voltage does not maintain the desired voltage. The supply voltage must be connected to the
board with short and thick wires to handle the pulsing input current. If long cables are used to
power up the board, damping must be provided by added CFLT3 and RFLT3 to avoid oscillation
between the cable parasitic inductance and the low-ESR ceramic capacitors.
VIN_EMI —Input voltage to input filter of the converter
If the input filter is desired between the supply and the LM61460-Q1, connect the supply voltage
between VIN_EMI and GND_EMI. The supply voltage must be connected to the board with short
and thick wires to handle pulsing input current.
The input filter consists of the following: CF1, CF2, CF3, CF4, CF5, CF6, and L2. CD1, CD2, RD1,
and RD2 are provided to allow more options to during filter design. To include the input filter in the
power path, connect the supply voltage between the VIN_EMI and GND_EMI connectors. The
output of the filter is connected to VIN, which is connected to the VIN pins of the LM61460-Q1 and
the input capacitors.
Conducted EMI arises from the normal operation of switching circuits. The ON and OFF actions of
the power switches generate large discontinuous currents. The discontinuous currents are present
at the input side of buck converters. Voltage ripple generated by discontinuous currents can be
conducted to the voltage supply for the buck converter. Without filtering, excessive input voltage
ripple can compromise operation of other circuits connected to this source. The input filter helps
smooth out the voltage perturbations leading to less noise at the power source.
GND_EMI —Ground return for the input filter
This is the current return path for the supply connected to VIN_EMI. It provides a short-loop
connection to the input filter capacitors to best filter the conducted noise generated from the PCB.
Use VIN_EMI and GND_EMI connection if input filter is used and conducted EMI test is desired.
CLK —For synchronization clock input
The CLK input connector is designed for external clock input to the EN/SYNC pin. Switching action
of the buck is synchronized to the external clock when it is present. The operation mode changes to
forced PWM mode automatically, maintaining a constant switching frequency at light load.
EN — To monitor the EN pin or input EN control signal
This test point is used to monitor the voltage on the device EN pin. By default, the EN pin is
connected to the mid-point of an enable divider. Note that the lower resistor in this divider, RENB, is
not populated.

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PG — To monitor the PGOOD/RESET pin
The PGOOD flag indicates whether the output voltage is within the regulation band. The PGOOD
pin of the device is an open-drain output and it is pulled up to VOUT on this board through a pullup
resistor. This flag is high impedance when the output voltage is in regulation.
Vinj —To aid when making bode plots
There is a low value resistor, Rinj, between VOUT and this node. This feedback divider of the board
is connected to this node as well. Stimulus can be applied between this node and VOUT when
taking measurements for bode plots.
VOUTS —Kelvin sensing for VOUT
This connector is provided to allow VOUT to be measured more accurately.
VINS —Kelvin sensing for VIN
This connector is provided to allow VIN to be measured more accurately.
4 Schematic
The bill of materials from Table 2 is tabulated in Section 7. In addition, Figure 6 shows the corresponding
schematic.

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Figure 6. LM61460-AS-400K Rev A EVM Schematic
NOTE: Long leads and additional inductance in used to power the DC/DC may cause issues for ideal device operation. RD2, CD2, RD1, and
CD1 are placeholders for damping networks to be populated. For more information regarding this topic, reference the EMI Filter
Components and Their Nonidealities for Automotive DC/DC Regulators Technical Brief.

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4.1 Alternative BOM Configurations
Table 3. Different BOM Configurations
VOUT FREQUENCY RFBB RT COUT CIN + CHF L1
3.3 V 400 kHz 43.2 kΩ33.2 kΩ6 x 22 µF 2 x 4.7 µF + 2 x
100 nF 4.7 µH (XHMI6060)
3.3 V 2100 kHz 43.2 kΩ6.04 kΩ3 x 22 µF 2 x 4.7 µF + 2 x
100 nF 1 µH (XEL5030)
5 V 400 kHz 24.9 kΩ33.2 kΩ4 x 22 µF 2 x 4.7 µF + 2 x
100 nF 4.7 µH (XHMI6060)
5 V 2100 kHz 24.9 kΩ6.04 kΩ3 x 22 µF 2 x 4.7 µF + 2 x
100 nF 1 µH (XEL5030)

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5 Board Layout
Figure 7 through Figure 12 show the board layout for the LM61460-Q1 EVM. The EVM offers resistors,
capacitors, and test points to configure the following:
• Output voltage
• Precision enable pin
• Set frequency
• External clock synchronization
The 14-pin Hotrod package offers a very small size and low-noise solution. The PCB consists of a 4-layer
design. There are 2-oz copper planes on the top and bottom and 1-oz copper mid-layer planes to
dissipate heat with an array of thermal vias to connect to all four layers.
Test points have been provided for ease of use to connect the power supply and required load, and to
monitor critical signals.
Figure 7. Top 3D View Figure 8. Top Layer
Figure 9. Signal Layer 1 - Ground Plane Figure 10. Signal Layer 2 - Routing

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Figure 11. Bottom Layer Figure 12. Bottom 3D view
6 LM61460EVM Board Test Results
6.1 Thermals
A thermal image of the IC was captured to determine rise in-temp with a 5 V, 6 A load. The device was
soaked for 30 minutes to obtain accurate measurement.
Figure 13. Thermal Image Capture of IC at VIN = 13.5 V, VOUT = 5 V, Load = 6 A
NOTE: Thermal image captures top of case temperature. This is essentially junction temperature as
the case package is very thin, resulting in low psi-jt. This demonstrates device capability of
operating greater than 85°C ambient with headroom.
6.2 EMI
The EMI measurements were taken following CISPR 25, Class 5 standards. The measurements were
taken at 13.5 VIN, 5 VOUT with a 6 A load.

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Figure 14. Conducted EMI Measurement with CISPR 25
Class 5 Limit Lines (150 kHz to 30 MHz) Figure 15. Conducted EMI Measurement with CISPR 25
Class 5 Limit Lines (30 MHz to 110 MHz)
Figure 16. Radiated EMI Measurement with Horizontal
Bicon Antenna Under CISPR 25 Class 5 Limits Figure 17. Radiated EMI Measurement with Vertical Bicon
Antenna Under CISPR 25 Class 5 Limits

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Figure 18. Radiated EMI Measurement with Horizontal Log
Antenna Under CISPR 25 Class 5 Limits Figure 19. Radiated EMI Measurement with Vertical Log Antenna Under CISPR 25 Class 5 Limits
Figure 20. Radiated EMI Measurement with Rod Antenna Under CISPR 25 Class 5 Limits
6.3 Board Efficiency
This section provides efficiency plots for the board with LM61460AAS populated for Auto mode efficiency
and LM61460AFS populated for FPWM mode efficiency. For 2-MHz data, the output stage has to be
changed from the default BOM. The inductor (L1) selected was XEL5030-102MEB.

Load Current (A)
Efficiency (%)
0.001 0.010.02 0.05 0.1 0.2 0.5 1 2 3 45 7 10
60%
65%
70%
75%
80%
85%
90%
95%
100%
LM61
VIN = 8 V
VIN = 13.5 V
VIN = 24 V
Load Current (A)
Efficiency (%)
0 1 2 3 4 5 6 7
50%
55%
60%
65%
70%
75%
80%
85%
90%
95%
100%
LM61
VIN = 8 V
VIN = 13.5 V
VIN = 24 V
Output Current (A)
Efficiency (%)
0.001 0.010.02 0.05 0.1 0.2 0.5 1 2 3 45 7 10
60%
65%
70%
75%
80%
85%
90%
95%
100%
LM61
VIN = 8 V
VIN = 13.5 V
VIN = 24 V
Output Current (A)
Efficiency (%)
0 1 2 3 4 5 6 7
50%
55%
60%
65%
70%
75%
80%
85%
90%
95%
100%
LM61
VIN = 8 V
VIN = 13.5 V
VIN = 24 V
Load Current (A)
Efficiency (%)
0.0001 0.001 0.01 0.1 0.2 0.5 1 2 3 5 710
60%
65%
70%
75%
80%
85%
90%
95%
100%
LM61
VIN = 8 V
VIN = 13.5 V
VIN = 24 V
Load Current (A)
Efficiency (%)
0 1 2 3 4 5 6 7
50%
55%
60%
65%
70%
75%
80%
85%
90%
95%
100%
LM61
VIN = 8 V
VIN = 13.5 V
VIN = 24 V
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Figure 21. FSW = 400 kHz, 5 VOUT, Auto Mode Figure 22. FSW = 400 kHz, 5 VOUT, FPWM Mode
Figure 23. FSW = 400 kHz, 3.3 VOUT, Auto Mode Figure 24. FSW = 400 kHz, 3.3 VOUT, FPWM Mode
Figure 25. FSW = 2.2 MHz, 5 VOUT, Auto Mode Figure 26. FSW = 2.2 MHz, 5 VOUT, FPWM Mode

Output Current (A)
Output Voltage (V)
0 1 2 3 4 5 6 7
3.29
3.31
3.33
3.35
3.37
SNVS
VIN = 8 V
VIN = 13.5 V
VIN = 24 V
Output Current (A)
Output Voltage (V)
0 1 2 3 4 5 6 7
3.29
3.31
3.33
3.35
3.37
SNVS
VIN = 8 V
VIN = 13.5 V
VIN = 24 V
Output Current (A)
Output Voltage (V)
0 1 2 3 4 5 6 7
4.95
4.97
4.99
5.01
5.03
5.05
5.07
5.09
5.11
SNVS
VIN = 8 V
VIN = 13.5 V
VIN = 24 V
Output Current (A)
Output Voltage (V)
0 1 2 3 4 5 6 7
4.95
4.97
4.99
5.01
5.03
5.05
5.07
5.09
5.11
SNVS
VIN = 8 V
VIN = 13.5 V
VIN = 24 V
Output Current (A)
Efficiency (%)
0.001 0.010.02 0.05 0.1 0.2 0.5 1 2 3 45 7 10
60%
65%
70%
75%
80%
85%
90%
95%
100%
LM61
VIN = 8 V
VIN = 13.5 V
VIN = 24 V
Output Current (A)
Efficiency (%)
0 1 2 3 4 5 6 7
50%
55%
60%
65%
70%
75%
80%
85%
90%
95%
100%
LM61
VIN = 8 V
VIN = 13.5 V
VIN = 24 V
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Figure 27. FSW = 2.2 MHz, 3.3 VOUT, Auto Mode Figure 28. FSW = 2.2 MHz, 3.3 VOUT, FPWM Mode
6.4 Load Regulation
This section provides efficiency plots for the board with LM61460AAS populated for Auto mode efficiency
and LM61460AFS populated for FPWM mode efficiency. For 2-MHz data, the output stage has to be
changed from the default BOM. The inductor (L1) selected was XEL5030-102MEB.
Figure 29. FSW = 400 kHz, 5 VOUT, Auto Mode Figure 30. FSW = 400 kHz, 5 VOUT, FPWM Mode
Figure 31. FSW = 400 kHz, 3.3 VOUT, Auto Mode Figure 32. FSW = 400 kHz, 3.3 VOUT, FPWM Mode

Output Current (A)
Output Voltage (V)
0 1 2 3 4 5 6 7
3.29
3.31
3.33
3.35
3.37
SNVS
VIN = 8 V
VIN = 13.5 V
VIN = 24 V
Output Current (A)
Output Voltage (V)
0 1 2 3 4 5 6 7
3.29
3.31
3.33
3.35
3.37
SNVS
VIN = 8 V
VIN = 13.5 V
VIN = 24 V
Output Current (A)
Output Voltage (V)
0 1 2 3 4 5 6 7
4.95
4.97
4.99
5.01
5.03
5.05
5.07
5.09
5.11
SNVS
VIN = 8 V
VIN = 13.5 V
VIN = 24 V
Output Current (A)
Output Voltage (V)
0 1 2 3 4 5 6 7
4.95
4.97
4.99
5.01
5.03
5.05
5.07
5.09
5.11
SNVS
VIN = 8 V
VIN = 13.5 V
VIN = 24 V
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Figure 33. FSW = 2.2 MHz, 5 VOUT, Auto Mode Figure 34. FSW = 2.2 MHz, 5 VOUT, FPWM Mode
Figure 35. FSW = 2.2 MHz, 3.3 VOUT, Auto Mode Figure 36. FSW = 2.2 MHz, 3.3 VOUT, FPWM Mode

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7 Bill of Materials
The bill of material is shown Table 4 for Rev A of the LM61460EVM-AS-400K and LM61460EVM-FS-400K. Note that the BOM difference between
the two EVM variants is the selection of the IC populated (U1).
Table 4. LM61460EVM-xS-400K Rev A EVM Bill of Materials
DESIGNATOR QUANTITY VALUE DESCRIPTION PACKAGE
REFERENCE PART NUMBER MANUFACTURER
C1, C4 2 4.7 µF CAP, CERM, 4.7 µF, 50 V, ±20%, X7R, AEC-
Q200 Grade 1, 1210 1210 UMK325B7475MMHT Taiyo Yuden
C2, C3 2 0.022 µF CAP, CERM, 0.022 µF, 50 V, ±10%, X7R,
0402 0402 GRM155R71H223KA12 DMuRata
C5 1 1 µF CAP, CERM, 1 µF, 25 V, ±10%, X7R, 0805 0805 C0805C105K3RACTU Kemet
C6, C7, C8, C9 4 22 µF CAP, CERM, 22 µF, 16 V, ±20%, X7R, AEC-
Q200 Grade 1, 1210 1210 CGA6P1X7R1C226M25 0AC TDK
C12 1 1000 pF CAP, CERM, 1000 pF, 50 V, ±0%, X7R, 0603 0603 C0603C102K5RACTU Kemet
C13 1 0.1 µF CAP, CERM, 0.1 µF, 10 V, ±10%, X7R, 0603 0603 C0603X104K8RACTU Kemet
C15 1 1 µF CAP, CERM, 1 µF, 16 V, ±10%, X7R, 0603 0603 885012206052 Wurth Elektronik
C16 1 22 pF CAP, CERM, 22 pF, 50 V, ±5%, C0G/NP0,
AEC-Q200 Grade 1, 0603 0603 CGA3E2C0G1H220J080 AA TDK
C17, C18, C19, C20 4 2.2 µF CAP, CERM, 2.2 µF, 50 V, ±10%, X7R, AEC-
Q200 Grade 1, 0805 0805 CGA4J3X7R1H225K125 AB TDK
C21, C22 2 0.47 µF CAP, CERM, 0.47 µF, 50 V, ±10%, X7R,
AEC-Q200 Grade 1, 0603 0603 CGA3E3X7R1H474K080 AE TDK
J1, J2, J3 3 Terminal Block, 5 mm, 2x1, Tin, TH Terminal Block, 5 mm,
2x1, TH 691 101 710 002 Wurth Elektronik
J4 1 Header, 100 mil, 3x1, Gold, TH Header, 100 mil, 3x1, TH HTSW-103-07-G-S Samtec
L1 1 4.7 µH Inductor, Shielded, Hyperflux, 4.7 µH, 7.4 A,
0.0143 Ω, SMD 6.65x6.45 mm 74439346047 Wurth Elektronik
L2 1 1.2 µH Shielded Molded Inductor 7.5 A, 11.3
mΩMax 2-SMD SMD2 744316220 Wurth Electronics
LBL1 1 PCB Label 0.650 x 0.200
inch THT-14-423-10 Brady
R1, R6 2 1.00 k RES, 1.00 k, 1%, 0.25 W, 1206 1206 RC1206FR-071KL Yageo America
R2 1 0 RES, 0, 5%, 0.1 W, 0603 0603 RC0603JR-070RL Yageo
R3 1 33.2 k RES, 33.2 k, 1%, 0.1 W, AEC-Q200 Grade 0,
0603 0603 CRCW060333K2FKEA Vishay-Dale
R4, R7 2 100 k RES, 100 k, 1%, 0.1 W, 0603 0603 RC0603FR-07100KL Yageo
R5 1 100 RES, 100, 1%, 0.1 W, 0603 0603 RC0603FR-07100RL Yageo
R8 1 24.9 k RES, 24.9 k, 1%, 0.1 W, 0603 0603 RC0603FR-0724K9L Yageo
R9 1 1.00 k RES, 1.00 k, 1%, 0.1 W, 0603 0603 ERJ-3EKF1001V Panasonic

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Table 4. LM61460EVM-xS-400K Rev A EVM Bill of Materials (continued)
DESIGNATOR QUANTITY VALUE DESCRIPTION PACKAGE
REFERENCE PART NUMBER MANUFACTURER
R10 1 255 k RES, 255 k, 1%, 0.1 W, 0603 0603 RC0603FR-07255KL Yageo
SH-J1 1 Shunt, 100 mil, Gold plated, Black Shunt 2 pos. 100 mil 881545-2 TE Connectivity
TP1, TP9 2 Test Point, Multipurpose, Red, TH Red Multipurpose
Testpoint 5010 Keystone
TP2, TP3, TP5, TP6 4 Test Point, Multipurpose, Black, TH Black Multipurpose
Testpoint 5011 Keystone
TP4, TP7 2 Test Point, Multipurpose, Orange, TH Orange Multipurpose
Testpoint 5013 Keystone
TP8, TP10 2 Test Point, Multipurpose, White, TH White Multipurpose
Testpoint 5012 Keystone
U1 (changes based on
EVM variant)1 Automotive 6-A Low Noise Synchronous Buck Regulators, RJR0014A (VQFN-HR-14) RJR0014A LM61460AASQRJRRQ1 (LM61460EVM-AS-
400K) or
LM61460AFSQRJRRQ1
(LM61460EVM-FS-400K
Texas Instruments
C10, C11 0 22 µF CAP, CERM, 22 µF, 16 V, ±20%, X7R, AEC-
Q200 Grade 1, 1210 1210 CGA6P1X7R1C226M25 0AC TDK
C14 0 1 µF CAP, CERM, 1 µF, 10 V, ±10%, X7R, 0603 0603 GRM188R71A105KA61
DMuRata
C23, C24 0 1 µF CAP, CERM, 1 µF, 50 V, ±10%, X7R, 0603 0603 UMK107AB7105KA-T Taiyo Yuden
FID1, FID2, FID3, FID4,
FID5, FID6 0 Fiducial mark. There is nothing to buy or mount. N/A N/A N/A
R12 0 0.51 RES, 0.51, 1%, 0.25 W, 0805 0805 CRM0805-FX-R510ELF Bourns
R13 0 100 k RES, 100 k, 1%, 0.1 W, 0603 0603 RC0603FR-07100KL Yageo

Revision History www.ti.com
18 SNVU621C–May 2019–Revised December 2019
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Copyright © 2019, Texas Instruments Incorporated
Revision History
Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from B Revision (November 2019) to C Revision ........................................................................................... Page
• Added Section 4.1......................................................................................................................... 8
• Added plots to Section 6.2.............................................................................................................. 10
• Added Section 6.3....................................................................................................................... 12
• Added Section 6.4....................................................................................................................... 14
Changes from A Revision (September 2019) to B Revision .......................................................................................... Page
• Updated Figure 5 through Figure 12 to match the revised EVM design........................................................... 4
• Added Figure 20 through Figure 15................................................................................................... 10
Changes from Original (May 2019) to A Revision ........................................................................................................... Page
• Changed Figure 5 through Figure 12................................................................................................... 4
• Changed connected descriptions to match the new EVM design .................................................................. 5
• Changed the Bill of Materials........................................................................................................... 16

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.