Texas Instruments bq25910EVM-854 User manual

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bq25910EVM-854 Evaluation Module
User's Guide
SLVUB31A–September 2017–Revised March 2018
bq25910EVM-854 Evaluation Module
This user's guide describes the characteristics, operation, and use of the bq25910 Evaluation Module
(EVM). A complete schematic diagram, printed-circuit board layouts, and bill of materials (BOM) are
included in this document.
Contents
1 Introduction ................................................................................................................... 2
1.1 EVM Features....................................................................................................... 2
1.2 I/O Descriptions..................................................................................................... 2
1.3 Recommended Operating Conditions............................................................................ 4
2 Test Setup and Results..................................................................................................... 4
2.1 Equipment ........................................................................................................... 4
2.2 Test Setup ........................................................................................................... 5
3 Board Layout ................................................................................................................. 9
4 Schematic and Bill of Materials........................................................................................... 12
4.1 Schematic .......................................................................................................... 12
4.2 Bill of Materials .................................................................................................... 13
List of Figures
1 bq25910EVM-854 Image ................................................................................................... 2
2 bq25910EVM Setup......................................................................................................... 5
3 bqStudio Device Tabs....................................................................................................... 5
4 bq25910 Registers .......................................................................................................... 6
5 bq25910 WD_RST bit....................................................................................................... 6
6 bq25910 Watchdog Timer Disable ........................................................................................ 7
7 bq25898D Enable HIZ Mode............................................................................................... 7
8 bq25910EVM-854 Top Overlay............................................................................................ 9
9 bq25910EVM-854 Top Solder ............................................................................................. 9
10 bq25910EVM-854 Top Layer .............................................................................................. 9
11 bq25910EVM-854 Signal Layer 1 ......................................................................................... 9
12 bq25910EVM-854 Signal Layer 2 ......................................................................................... 9
13 bq25910EVM-854 Bottom Layer........................................................................................... 9
14 bq25910EVM-854 Bottom Solder........................................................................................ 10
15 bq25910EVM-854 Bottom Overlay ...................................................................................... 10
16 bq25910EVM-854 Drill Drawing.......................................................................................... 10
17 bq25910EVM-854 Board Dimensions................................................................................... 10
18 bq25910EVM-854 Schematic............................................................................................. 12
List of Tables
1 Device Data Sheets ......................................................................................................... 2
2 bq25910EVM Ports.......................................................................................................... 3
3 bq25910EVM Jumpers...................................................................................................... 3
4 bq25910EVM Test Points .................................................................................................. 3
5 bq25910EVM Recommended Operating Conditions.................................................................... 4

+
-
DC Load
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6 Bill of Materials ............................................................................................................. 13
1 Introduction
The bq25910 is an integrated three-level switch-mode parallel battery charge management device for
single cell Li-ion and Li-polymer batteries. Utilization of the three-level converter reduces solution footprint
and volume while maintaining highest switch-mode operation efficiency.
This evaluation module includes both the master and parallel chargers: the bq25898D and the bq25910,
respectively. The bq25898D is a highly-integrated 4-A switch-mode battery charge management and
system power-path device for single cell Li-ion and Li-polymer battery.
1.1 EVM Features
The device data sheets, listed in Table 1, provide detailed features and operation.
Table 1. Device Data Sheets
Device Data Sheet
bq25910 SLVSDU0
bq25898D SLUSCA6
1.2 I/O Descriptions
The bq25910EVM available ports and jumpers are described in Table 2 and Table 3.
Figure 1. bq25910EVM-854 Image
NOTE: Do not use sense lines and testpoints on the bq25910EVM to carry large amounts of current.

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Table 2. bq25910EVM Ports
Port Description
J1 bq25898D PMID port
J2 bq25898D SYS output
J3 bq25898D and bq25910 VBUS input
J4 Battery connector for both bq25898D and bq25910
J5 I2C Molex connector
J6 bq25910 PMID port
Table 3. bq25910EVM Jumpers
Jumper Description Default
Configuration
JP1 Pullup selection jumper. Choose between SYS or BAT. Installed to SYS
JP2 bq25898D battery sense line Installed
JP3 bq25910 INT pin jumper Installed
JP4 bq25898D CE pin (charge enabled) Installed
JP5 bq25898D REGN to TS network connection Installed
JP6 TS network connection to potentiometer Installed
JP7 TS to GND connection. Can also be used to attach an external 103AT
thermistor. Not Installed
JP8 bq25898D OTG to GND pin connection Installed
JP9 bq25898D ILIM to GND pin connection Not Installed
JP10 bq25910 IND_SNS pin connection Installed
JP11 bq25910 BATP sense line connection Installed
JP12 bq25910 BATN sense line connection Installed
Table 4. bq25910EVM Test Points
Test Point Description
VBUS1_s Sense line for the bq25898D VBUS for efficiency measurement
PMID1 Connection to the bq25898D PMID plane
VBUS2_s Sense line for the bq25910 VBUS for efficiency measurement
PMID2 Connection to the bq25910 PMID plane
BAT_s bq25898D battery sense line
BATP bq25910 positive battery sense line
BATN bq25910 negative battery sense line
GND_s bq25910 sense line to GND plane near IC for efficiency measurement
SW1 bq25898D switch node
SW2 bq25910 switch node
VOUT_910_s bq25910 converter output for efficiency measurement
CFLY+/CFLY– Differential test points for the bq25910 CFLY capacitor
CDRV+/CDRV– Differential test points for the bq25910 CDRV capacitor
INT2 bq25910 Interrupt pin
CAUX bq25910 CAUX capacitor
REGN bq25910 REGN output

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1.3 Recommended Operating Conditions
Table 5. bq25910EVM Recommended Operating Conditions
Symbol Description MIN TYP MAX Unit
VBUS Input voltage from AC adapter 3.9 14 V
IBUS Input supply current from AC adapter 3.6 A
VBAT Battery voltage applied at J4 0 4.775 V
IBAT bq25910 output current 0 6 A
2 Test Setup and Results
2.1 Equipment
In order to evaluate the bq25910EVM, the following are required:
•Power Supply: Capable of providing up to 14 V and 3.6 A to be used for VBUS.
•Battery Emulator: A 4-quadrant supply capable of constant voltage ≤4.775 V and constant current ≤
6 A.
•DC Electronic Load: Used to emulate system load.
•Multimeters: Used for voltage measuring and at least 2 current meters capable of measuring 6 A or
can use the sense resistors on the board.
•Computer: A computer with at least one USB port and USB cable.
•EV2400 USB-based PC Interface Board: Used to interface with the bq25910EVM via I2C. The
EV2400 is purchased separately and is found here.
•bqStudio: Software platform used to send commands to the bq25910EVM via I2C using the EV2400.
Download the latest version of bqStudio from ti.com. Double click the bqStudio setup installation file
and follow the installation prompts. The software supports Microsoft®Windows®XP and Windows 7
operating systems.

EV2400
USB
Port
I2C
bq25910EVM
+
±
I2C
GND
BAT
J4
VBUS
J3
GND J5
SYS
J2
GND
Power Supply
Li-ion battery/
battery emulator
DC Load
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2.2 Test Setup
Both the master and parallel chargers are present on the EVM. This user's guide focuses on setting up
and evaluation of the bq25910 charger.
Figure 2 shows the connections between the power supplies, EV2400 and the bq25910EVM.
Figure 2. bq25910EVM Setup
2.2.1 Setting up the bq25898D
This user's guide covers the necessary steps to set up the master charger for parallel charger evaluation.
• Connect the battery emulator to battery connector, J4. Set battery emulator to 3.8 V.
• Using a 4-wire Molex cable (included with EV2400), connect the I2C port to the J5 connector on the
EVM. Connect the USB cable to any USB port on the PC with bqStudio installed.
• Apply 5 V at VBUS connector, J3. At this point, the bq25898D should be providing 2 A of charge
current to the battery.
• Open bqStudio and select the bq25910EVM from the Charger menu.
Figure 3. bqStudio Device Tabs
• The software allows you to modify both the bq25898D and bq25910 I2C registers. Figure 3 shows the
device tabs on bqStudio. Selecting one of them opens the register interface for that particular device
and allows the values to be modified via I2C.
• The DC electronic load can be connected at J2 to emulate the system load. Note the 4-A maximum
output current of the converter and the maximum 6 A of continuous discharge current from the battery
of the bq25898D.
• For full details on the test setup of the bq25898D, refer to bq25898, bq25898D, and bq25898C
PWR730 Evaluation Module.
• To evaluate bq25910 only, place the bq25898D in HIZ mode.

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2.2.2 Setting up the bq25910
This section describes the options available for evaluation of the bq25910 and how to set up the device for
basic evaluation.
• Once the master charger is set up, select the bq25910 Field View tab on bqStudio to continue to set
up the parallel charger.
Figure 4. bq25910 Registers
•Figure 4 shows the configurable registers, single-bit I2C commands and status registers available for
the bq25910.
• The bq25910 is a host controlled parallel charger and will automatically shut off when the I2C
watchdog timer is not reset within the timer period (40 seconds by default). While in default mode,
charging is disabled until the host sets the ENABLE CHARGE bit and resets the watchdog timer via
the WD_RST bit (RESET WATCHDOG command).
• After POR, the device is in default mode with the watchdog timer expired. While in default mode, the
bq25910 remains in HIZ mode and will not charge the battery.
• The WD_RST bit needs to be set first to force the charger out of default mode. This can be done by
setting the RESET WATCHDOG checkbox on bqStudio, see Figure 5 for the location of the WD_RST
bit in the Single-bit I2C Selection section of bqStudio.
Figure 5. bq25910 WD_RST bit
• Once WD_RST is set, all the device parameters can be programmed. To keep the device in host
mode, the host has to reset the watchdog timer by setting the WD_RST bit before the timer expires or
disable the watchdog timer. For the purpose of this evaluation, we disable the watchdog timer by
writing REG05[5:4] = 00b. This can be done by using the drop-down menu for the Watchdog Timer
setting on the Multi-bit I2C Pulldown Menu. See Figure 6 for the location in bqStudio.

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Figure 6. bq25910 Watchdog Timer Disable
2.2.3 Master and Parallel Chargers Interaction
The bq25898D acts as the master charger and is in charge of pre-conditioning and full termination of the
battery. The parallel charger, the bq25910, monitors the battery voltage and compares it to the VBAT_LOWV
threshold. Once the battery voltage rises above the VBAT_LOWV threshold, the bq25910 turns on and begins
charging, applying the charge current set on the Fast Charge Current Limit register.
Once the bq25910 begins charging, the master charger can be either placed in HIZ mode or continue
running in parallel with the bq25910.
2.2.3.1 Master Charger In HIZ mode
Placing the master charger in HIZ mode when the parallel charger begins charging is recommended
because this allows evaluating the performance of the bq25910 independently from the master charger.
This can be done by navigating to the bq25898D tab on bqStudio and setting the Enable HIZ checkbox,
refer to Figure 7.
Figure 7. bq25898D Enable HIZ Mode

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2.2.4 Measuring bq25910 Charge Efficiency
This section details how to evaluate the bq25910 charge efficiency.
1. Apply 9 V on VBUS at the J3 port on the EVM.
2. Apply 3.8 V on BAT at the J4 port on the EVM.
3. Follow the steps in section 2.2.3.1, to place the master charger in HIZ mode.
4. Follow the steps in section 2.2.2, to enable charge on the bq25910.
5. In order to calculate efficiency, the input voltage, battery voltage and charge current must be set
correctly.
• On bqStudio, navigate to the bq25910 device tab and select 3000mA from the Fast Charge
Current Limit drop-down menu.
• Using a multimeter, measure the voltage at the BAT_s testpoint with respect to the GND_s
testpoint and modify the battery emulator voltage until 3.8 V is measured.
• Using a multimeter, measure the voltage at the VBUS2_s testpoint with respect to the GND_s
testpoint and modify the power supply until 9 V is measured.
• At this point, the device should be providing 3 A of charge current. Input current and charge
current can be measured either by an ammeter in series with VBUS and BAT or measuring the
voltage across the sense resistors, R20 and R21, and converting the voltage to current.
• Once input voltage, battery voltage, charge current and input current are measured, efficiency can
be calculated.

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3 Board Layout
Figure 8 through Figure 17 illustrate the bq25910EVM-854 PCB layouts.
Figure 8. bq25910EVM-854 Top Overlay Figure 9. bq25910EVM-854 Top Solder
Figure 10. bq25910EVM-854 Top Layer Figure 11. bq25910EVM-854 Signal Layer 1

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Figure 12. bq25910EVM-854 Signal Layer 2 Figure 13. bq25910EVM-854 Bottom Layer
Figure 14. bq25910EVM-854 Bottom Solder Figure 15. bq25910EVM-854 Bottom Overlay

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Figure 16. bq25910EVM-854 Drill Drawing Figure 17. bq25910EVM-854 Board Dimensions

GND
J3
GND
1µF
C15
10µF
C7
10µF
C6
DNP
10µF
C5
DNP
10µF
C4
DNP
1000pF
C3
DNP
22µF
C2
DNP
GND
J1
GND
1µH
L1
0.047µF
C8
0.047µF
C16
4.7µF
C1
GND
10µF
C9
10µF
C10
10µF
C11
DNP
10µF
C12
DNP
1000pF
C14
DNP
0.1µF
C13
DNP
GND
J2
10µF
C17 J4
GND
1
2
3
JP1
JP2
PULLUP
REGN
SYS
BATSNS
PMID
1
2
3
4
5
TP40
DNP GND
Green
D1
2.21k
R5
PULLUP
STAT 5.23k
R7
30.1k
R13
JP6
GND
JP7
JP5
REGN
SCL
SDA
10.0k
R8
10.0k
R9
PULLUP
SDA
SCL
10.0k
R10
10.0k
R11
INT
INT
OTG
OTG
JP8
GND
10.0k
R6
GND
JP4
STAT
4.7k
R12
S1
GND
JP9
GND
49.9
R15
10k
R17
768
R16
VBUS
A1
PMID
A2
CFLY+ A3
SW A4
CFLY- A5
GND A6
VBUS
B1
PMID
B2
CFLY+ B3
SW B4
CFLY- B5
GND B6
VBUS
C1
PMID
C2
CFLY+ C3
SW C4
CFLY- C5
GND C6
CDRV+
D1
PMID
D2
CFLY+ D3
SW D4
CFLY- D5
GND D6
CDRV-
E1
SDA
E2
INT
E3
SW E4
CFLY- E5
GND E6
SCL
F1
CAUX
F2
REGN
F3
BATN F4
BATP F5
IND_SNS F6
U2
BQ25910YFFR
VBUS
VBUS
GND
1µF
C18
10µF
C21
GND
PMID1
PMID1
0.22µF
C24
GNDGND
10µF
C22
10µF
C23
GND
BAT
JP11
BATP
BATN
10.0k
R22
PULLUP
SCL
SDA
1
2
3
4
5
TP41
DNP
GND
GND GND
J6
4
1
2
3
J5
GND
SCL
SDA
JP12
TP33
TP8
1
2
3
4
5
TP42
DNP
GND
4.7µF
C26
4.7µF
C25
BATP
220pF
C28
DNP
22µF
C27
DNP
220pF
C29
DNP
22µF
C30
DNP
TP25
TP12
TP11
TP15
TP27 TP28
470nH
L3
DNP
TP3
TP9
TP17
0.01
R20
0.01
R1
0.01
R4
470nH
L2
0.01
R2
0.01
R19
0.01
R18
DNP
0.01
R21
DNP
TP13 TP14
TP22 TP23
TP21
TP24
TP7TP6
TP26
TP32
TP35
TP37
TP36
TP4 TP5
BTST A6
PGND G6
SW F5
PMID
F4
VBUS
E3
SYS C2
BAT C1
PGND C6
DSEL
B5
TS A4
SCL
A3
VBUS
G3
SYS E2
BAT E1
BATSEN F1
PGND D6
QON
B6
CE
B4
SDA
B3
SYS A2
ILIM
G2
PMID
D4
PGND F6
SW E5
PMID
E4
D-
D3 SYS D2
BAT B1
SW C5
REGN A5
SW G5
PMID
G4
VBUS
F3
INT
F2 BAT D1
STAT
G1
PGND E6
SW D5
OTG
C4
D+
C3 SYS B2
BAT A1
U1
BQ25898DYFFR
20
R3
TP1
TP19
TP20
TP16
TP18
TP2
TP34
TP10
TP38
TP29
TP30
TP31
JP3
IND_SNS
PULLUP
GND
50k
R14
TP39
TP43
TP44
JP10
GND
BAT
GND
PMID1
GND
VBUS
GND
PMID2
GND
TP45
TP46
10µF
C31
DNP
10µF
C20
10µF
C19
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4 Schematic and Bill of Materials
This section contains the bq25910EVM-854 schematics and bill of materials.
4.1 Schematic
Figure 18 shows the bq25910EVM-854 schematics.
Figure 18. bq25910EVM-854 Schematic

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4.2 Bill of Materials
Table 6 lists the EVM bill of materials.
(1) Unless otherwise noted in the Alternate Part Number or Alternate Manufacturer columns, all parts may be substituted with equivalents.
Table 6. Bill of Materials(1)
Designator QTY Value Description Package Reference Part Number Manufacturer Alternate Part Number Alternate
Manufacturer
!PCB 1 Printed Circuit Board PWR854 Any
C1 1 4.7uF CAP, CERM, 4.7 µF, 16 V, +/- 10%, X5R, 0603 0603 GRM188R61C475KAAJ Murata
C7, C9, C10, C17, C21 5 10uF CAP, CERM, 10 µF, 25 V, +/- 20%, X5R, 0603 0603 GRM188R61E106MA73D Murata
C8, C16 2 0.047uF CAP, CERM, 0.047 µF, 25 V, +/- 10%, X7R, 0402 0402 GRM155R71E473KA88D Murata
C15 1 1uF CAP, CERM, 1 µF, 25 V, +/- 10%, X7R, 0805 0805 GRM219R71E105KA88D Murata
C18 1 1uF CAP, CERM, 1 µF, 25 V, +/- 10%, X7R, 0603 0603 GRM188R71E105KA12D Murata
C19, C20 2 10uF CAP, CERM, 10 µF, 10 V, +/- 20%, X5R, 0603 0603 GRM188R61A106MAALD Murata
C22, C23 2 10uF CAP, CERM, 10 µF, 16 V, +/- 20%, X5R, 0603 0603 GRM188R61C106MAALD Murata
C24 1 0.22uF CAP, CERM, 0.22 µF, 6.3 V, +/- 20%, X5R, 0201 0201 GRM033R60J224ME90 Murata
C25, C26 2 4.7uF CAP, CERM, 4.7 µF, 10 V, +/- 20%, X5R, 0402 0402 GRM155R61A475MEAAD Murata
D1 1 Green LED, Green, SMD 1.6x0.8x0.8mm LTST-C190GKT Lite-On
J1, J2, J3, J4, J6 5 Conn Term Block, 2POS, 3.81mm, TH 2POS Terminal Block 1727010 Phoenix Contact
J5 1 Header (friction lock), 100mil, 4x1, R/A, TH 4x1 R/A Header 22-05-3041 Molex
JP1 1 Header, 100mil, 3x1, Tin, TH Header, 3 PIN, 100mil,
Tin PEC03SAAN Sullins Connector Solutions
JP2, JP3, JP4, JP5, JP6, JP7,
JP8, JP9, JP10, JP11, JP12 11 Header, 100mil, 2x1, Tin, TH Header, 2 PIN, 100mil, Tin PEC02SAAN Sullins Connector Solutions
L1 1 1uH Inductor, Wirewound, 1 µH, 4 A, 0.041 ohm, SMD 4.06x4.06mm 74437321010 Wurth Elektronik
L2 1 470nH Inductor, Powdered Iron, 470 nH, 5.8 A, 0.017
ohm, SMD 2.5x1.2x2mm DFE252012F-R47M=P2 Murata Toko
R1, R4, R20 3 0.01 RES, 0.01, 1%, 1 W, 2512 2512 WSL2512R0100FEA Vishay-Dale
R2, R19 2 0.01 RES, 0.01, 1%, 1 W, 1206 1206 WSLP1206R0100FEA Vishay-Dale
R3 1 20 RES, 20, 5%, 0.063 W, 0402 0402 CRCW040220R0JNED Vishay-Dale
R5 1 2.21k RES, 2.21 k, 1%, 0.063 W, 0402 0402 CRCW04022K21FKED Vishay-Dale
R6, R8, R9, R10, R11, R22 6 10.0k RES, 10.0 k, 1%, 0.1 W, 0603 0603 RCG060310K0FKEA Vishay Draloric
R7 1 5.23k RES, 5.23 k, 1%, 0.063 W, 0402 0402 CRCW04025K23FKED Vishay-Dale
R12 1 4.7k RES, 4.7k ohm, 5%, 0.063W, 0402 0402 CRCW04024K70JNED Vishay-Dale
R13 1 30.1k RES, 30.1 k, 1%, 0.063 W, 0402 0402 CRCW040230K1FKED Vishay-Dale
R14 1 50k Trimmer, 50k ohm, 0.25W, TH 4.5x8x6.7mm 3266W-1-503LF Bourns
R15 1 49.9 RES, 49.9, 1%, 0.063 W, 0402 0402 CRCW040249R9FKED Vishay-Dale
R16 1 768 RES, 768, 1%, 0.063 W, 0402 0402 CRCW0402768RFKED Vishay-Dale
R17 1 10k Trimmer, 10k ohm, 0.25W, TH 4.5x8x6.7mm 3266W-1-103LF Bourns
S1 1 Switch, Normally open, 2.3N force, 200k
operations, SMD KSR KSR221GLFS C and K Components
SH-J2, SH-J3, SH-J4, SH-J5,
SH-J8, SH-J9, SH-J10, SH-
J11, SH-J12, SH-J14
10 1x2 Shunt, 100mil, Gold plated, Black Shunt SNT-100-BK-G Samtec 969102-0000-DA 3M

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Table 6. Bill of Materials(1) (continued)
Designator QTY Value Description Package Reference Part Number Manufacturer Alternate Part Number Alternate
Manufacturer
TP1, TP8, TP12, TP25, TP26,
TP29, TP45 7 Test Point, Miniature, Red, TH Red Miniature Testpoint 5000 Keystone
TP2, TP10, TP34, TP38 4 Test Point, Compact, SMT Testpoint_Keystone_Co
mpact 5016 Keystone
TP3 1 Test Point, Compact, Yellow, TH Yellow Compact
Testpoint 5009 Keystone
TP4, TP5, TP6, TP7, TP13,
TP14, TP16, TP17, TP18,
TP19, TP20, TP21, TP22,
TP23, TP24, TP27, TP28,
TP30, TP31, TP32, TP33,
TP35, TP36, TP37, TP39,
TP43, TP44
27 Test Point, Miniature, White, TH White Miniature Testpoint 5002 Keystone
TP9, TP11, TP15, TP46 4 Test Point, Miniature, Black, TH Black Miniature Testpoint 5001 Keystone
U1 1 I2C Controlled Single Cell 4-A Fast Charger with
MaxCharge Technology, YFF0042AHAC (DSBGA-
42)
YFF0042AHAC BQ25898DYFFR Texas Instruments BQ25898DYFFT Texas Instruments
U2 1 1S, 6A, Three-Level Single-Cell Parallel Charger,
YFF0036AEAE (DSBGA-36) YFF0036AEAE BQ25910YFFR Texas Instruments BQ25910YFFT Texas Instruments
C2, C27, C30 0 22uF CAP, CERM, 22 µF, 25 V, +/- 20%, X5R, 0805 0805 GRM21BR61E226ME44L Murata
C3, C14 0 1000pF CAP, CERM, 1000 pF, 25 V, +/- 10%, X7R, 0805 0805 GRM216R71E102KA01D Murata
C4, C5, C6, C11, C12 0 10uF CAP, CERM, 10 µF, 25 V, +/- 20%, X5R, 0603 0603 GRM188R61E106MA73D Murata
C13 0 0.1uF CAP, CERM, 0.1 µF, 25 V, +/- 10%, X7R, 0805 0805 GRM21BR71E104KA01L Murata
C28, C29 0 220pF CAP, CERM, 220 pF, 50 V, +/- 1%, C0G/NP0,
0402 0402 C1005C0G1H221F050BA TDK
C31 0 10uF CAP, CERM, 10 µF, 16 V, +/- 20%, X5R, 0603 0603 GRM188R61C106MAALD Murata
FID1, FID2, FID3 0 Fiducial mark. There is nothing to buy or mount. Fiducial N/A N/A
L3 0 470nH Inductor, 470 nH, 8.2 A, 0.018 ohm, SMD 4.1x4.1mm HBLE041B-R47MSA Cyntec
R18, R21 0 0.01 RES, 0.01, 1%, 1 W, 1206 1206 WSLP1206R0100FEA Vishay-Dale
TP40, TP41, TP42 0 Compact Probe Tip Circuit Board Test Points, TH,
25 per TH Scope Probe 131-5031-00 Tektronix

www.ti.com Revision History
15
SLVUB31A–September 2017–Revised March 2018
Submit Documentation Feedback Copyright © 2017–2018, Texas Instruments Incorporated
Revision History
Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Original (September 2017) to A Revision ............................................................................................... Page
• Changed slave to parallel globally in the document. ................................................................................. 1
• Updated Board Layout images for PWR854 A. ....................................................................................... 9
• Updated the schematic for PWR854 A................................................................................................ 12

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3.1.1 Notice applicable to EVMs not FCC-Approved:
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Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to
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FCC Interference Statement for Class B EVM devices
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