BQ24031RHLRG4 datasheet(9/38 Pages) TI

Part #	BQ24031RHLRG4

Description	SINGLE-CHIP CHARGE AND SYSTEM POWER-PATH MANAGEMENT IC (bqTINY)

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Manufacturer	TI [Texas Instruments]

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DEVICE INFORMATION

STAT1

STAT2

AC

BAT

ISET2

PSEL

CE

bq24030RHL − bq24038RHL

RHL PACKAGE

(TOP VIEW)

USBPG / VBSEL

ACPG / PG

OUT

TMR

DPPM

TS

20

1

11

10

2

3

4

5

6

7

8

9

19

18

17

16

15

14

13

12

bq24030, bq24031, bq24032A

bq24035, bq24038

SLUS618F – AUGUST 2004 – REVISED NOVEMBER 2006

TERMINAL FUNCTIONS

TERMINAL

I/O

DESCRIPTION

NAME

NO.

AC

4

I

Charge input voltage from AC adapter

ACPG (1)

18

O

AC power-good status output (open-drain)

BAT

5, 6

I/O

Battery input and output.

CE

9

I

Chip enable input (active high)

DPPM

13

I

Dynamic power-path management set point (account for scale factor)

ISET1

10

I/O

Charge current set point for AC input and precharge and termination set point for both AC and USB

ISET2

7

I

Charge current set point for USB port. (High = 500 mA, Low = 100 mA)

LDO

1

O

3.3-V LDO regulator

OUT

15, 16, 17

O

Output terminal to the system

PG (1)

18

O

AC or USB power-good status output (open-drain)

PSEL

8

I

Power source selection input (Low for USB, High for AC)

STAT1

2

O

Charge status output 1 (open-drain)

STAT2

3

O

Charge status output 2 (open-drain)

TMR

14

I/O

Timer program input programmed by resistor. Disable safety timer and termination by tying TMR to LDO.

TS

12

I/O

Temperature sense input

USB

20

I

USB charge input voltage

USBPG (2)

19

O

USB power-good status output (open-drain)

VBSEL(2)

19

I

Battery charge voltage selection

Ground input (the thermal pad on the underside of the package) There is an internal electrical connection

between the exposed thermal pad and VSS pin of the device. The exposed thermal pad must be

VSS

11

–

connected to the same potential as the VSS pin on the printed-circuit board. Do not use the thermal pad

as the primary ground input for the device. VSS pin must be connected to ground at all times.

(1)

Pin 18 is PG for bq24038 and ACPG for bq24030/31/32A/35.

(2)

Pin 19 is VBSEL for bq24038 and USBPG for bq24030/31/32A/35.

9

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