background image

1

2

L1

MDT2012-CH2R2AN

1

2

3

4

5

6
7
8
9

10
11

J1

J2

J4

Green

1

2

D2

Red

1

2

D1

GND

GND

GND

GND

GND

GND

J28

J26

GND

J34

J32

J31

J29

J24

J22

GND

2.00

R9

2.00

R4

TP3

TP10

TP9

TP8

TP4

TP2

TP6

TP5

TP1

4

1

3

2

S1

GND

SW

LSCTRL

/MR

GND

/RESET

LS/LDO

BAT

ILIM

ISET

IN

SDA

SCL

INT

/PG

TS

SYS

VINLS

GND

GND

GND

GND_S-

GND

GND

J12

J15

4

1

2

3

J10

GND

PMID

SYS

BAT

VIN

5V USB

EV2400 I2C

J27

J30

J33

J3

GND_S-

LS/LDO

GND_S-

GND_S-

GND_S-

IN

A2

PMID

A3

PMID

B3

VINLS

C4

LSCTRL

E3

SDA

E4

VINLS

B4

PGND

A5

SYS

B5

RESET

D3

SCL

E5

CD

E2

SW

A4

GND

D5

PG

D4

IPRETERM

D1

ILIM

C2

LS/LDO

C5

BAT

B2

INT

D2

MR

E1

TS

C3

ISET

C1

BAT

B1

GND

A1

U1

BQ25120YFF

J7

VINLS

PMID

SYS

GND

SYS

PGND

PGND

GND

499

R7

499

R11

SYS

5 K

R12

J17

100k

R14

J8

499

R10

499

R13

50k

R8

1µF

C2

4.7µF

C1

10µF

C9

1µF

C6

1µF

C7

PMID

20k

R1

GND

14.3k

R3

14.0k

R2

GND

4.99k

R5

J5

4.7µF

C3

PMID

SYS_S+

VINLS

/CD

IPRETERM

BAT_S+

BAT

LS/LDO_S+

0

R15

IN_S+

0

R16

0

R17

0

R18

0

R19

0

R20

SYS

TP13

SY
S

S

Y

S

P

M

ID

1

2

3

J14

PEC03SAAN

1

2

3

J11

PEC03SAAN

1

2

3

J9

PEC03SAAN

1

2

3

J6

PEC03SAAN

1
2
3

J25

PEC03SAAN

TP7

TP14

TP11

/CD

0

R6

Input Voltage

Battery Voltage

3.4V - 5.5V

3.6V - 4.65V

1.1V - 3.3V

Output Voltage

www.ti.com

Introduction

3

SLUUBC8A – August 2015 – Revised May 2016

Submit Documentation Feedback

Copyright © 2015–2016, Texas Instruments Incorporated

bq2512x Evaluation Module

1.3

Schematic

Figure 1

illustrates the EVM schematic.

Figure 1. bq2512xEVM Schematic (bq25120 Represented)

Summary of Contents for bq2512 Series

Page 1: ...bq25120 PWR731 bq25121 PWR812 Contents 1 Introduction 2 1 1 bq2512x IC Features 2 1 2 bq2512x EVM Features 2 1 3 Schematic 3 1 4 I O Description 4 1 5 Test Points 5 1 6 Default Settings 5 1 7 Recomme...

Page 2: ...it charge current PWM output voltage LDO output voltage and other parameters are programmable through the I2 C interface The battery is charged using a standard Li Ion charge profile with three phases...

Page 3: ...ND A1 U1 BQ25120YFF J7 VINLS PMID SYS GND SYS PGND PGND GND 499 R7 499 R11 SYS 5 K R12 J17 100k R14 J8 499 R10 499 R13 50k R8 1 F C2 4 7 F C1 10 F C9 1 F C6 1 F C7 PMID 20k R1 GND 14 3k R3 14 0k R2 GN...

Page 4: ...to GND J10 EV2400 The 4 wire connector for EV2400 communication interface J11 ISET Headers for ISET pin to be connected to an external resistor or shorted to GND J12 INT Headers for INT pin to be pull...

Page 5: ...ommunication interface However I2 C communication is not required for this device to operate The module is programmed to the default settings as is described in Table 3 Table 4 shows the initial jumpe...

Page 6: ...N Input Current IN input 400 mA ISW Output Current from SW DC 300 mA IPMID Output Current from PMID DC 300 mA ILS LDO Output Current from LS LDO 100 mA IBAT ISYS Charging and discharging using interna...

Page 7: ...hen turn off supply Set power supply 2 PS 2 for 3 5 V and then turn off supply 2 Connect the positive output of PS 1 through a current meter CM 2 to IN J2 and negative output to GND J34 3 Connect a vo...

Page 8: ...ing I2 C communication implement the following steps with the software GUI 1 Install the bqStudio software GUI 2 Connect the EV2400 interface board to the EVM as shown in Figure 4 http www ti com tool...

Page 9: ...2 3 Observe D2 is on D1 is off 4 Measure on VM 3 V J27 SYS_S J14 GND 1 8V 50 mV 5 Measure on CM 2 ICHRG 0 1 mA 6 Measure on CM 1 IIN 2 mA 7 Disable PS 1 and PS 2 3 3 Charge Current Regulation 1 Remove...

Page 10: ...ossible instead of relying on each supply s digital measurement 2 When using a source meter as your battery simulator it is highly recommended to configure the source meter for 4 wire sensing eliminat...

Page 11: ...4 H15 4 SJ61A1 3M Bumpon Cylindrical 0 312 X 0 200 Black Black Bumpon 9 J1 1 105017 0001 Molex Receptacle Micro USB B Right Angle SMD Micro USB receptacle 10 J2 J3 J4 J5 J7 J8 J12 J15 J17 J22 J24 J26...

Page 12: ...S1 1 KST221JLFS C K Components Switch Tactile SPST NO SMT Switch 6 2X5X6 2 mm 26 SH JP1 SH JP2 SH JP3 SH JP4 SH JP5 SH JP6 SH JP7 7 1x2 969102 0000 DA 3M Shunt 100mil Gold plated Black Shunt 27 TP1 T...

Page 13: ...ed May 2016 Submit Documentation Feedback Copyright 2015 2016 Texas Instruments Incorporated bq2512x Evaluation Module 5 2 Board Layouts 5 2 1 PWR731 Layouts Figure 7 through Figure 16 illustrate the...

Page 14: ...nd Board Layout www ti com 14 SLUUBC8A August 2015 Revised May 2016 Submit Documentation Feedback Copyright 2015 2016 Texas Instruments Incorporated bq2512x Evaluation Module Figure 9 Top Layer Figure...

Page 15: ...terials and Board Layout 15 SLUUBC8A August 2015 Revised May 2016 Submit Documentation Feedback Copyright 2015 2016 Texas Instruments Incorporated bq2512x Evaluation Module Figure 11 Signal Layer 2 Fi...

Page 16: ...ard Layout www ti com 16 SLUUBC8A August 2015 Revised May 2016 Submit Documentation Feedback Copyright 2015 2016 Texas Instruments Incorporated bq2512x Evaluation Module Figure 13 Bottom Solder Mask F...

Page 17: ...erials and Board Layout 17 SLUUBC8A August 2015 Revised May 2016 Submit Documentation Feedback Copyright 2015 2016 Texas Instruments Incorporated bq2512x Evaluation Module Figure 15 Drill Drawing Figu...

Page 18: ...Layout Figure 17 illustrates the PWR812 PCB composite layout Figure 17 PWR812 Composite Layout Revision History NOTE Page numbers for previous revisions may differ from page numbers in the current ver...

Page 19: ...ing 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 repa...

Page 20: ...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 indic...

Page 21: ...ified allowable ranges some circuit components may have elevated case temperatures These components include but are not limited to linear regulators switching transistors pass transistors current sens...

Page 22: ...REMOVAL OR REINSTALLATION ANCILLARY COSTS TO THE PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES RETESTING OUTSIDE COMPUTER TIME LABOR COSTS LOSS OF GOODWILL LOSS OF PROFITS LOSS OF SAVINGS LOSS OF USE L...

Page 23: ...sponsible for compliance with all legal regulatory and safety related requirements concerning its products and any use of TI components in its applications notwithstanding any applications related inf...

Page 24: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments BQ25120EVM 731...

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