Thermal

Pad

1

PWM1_/_CLK_OUT

30

VCORE

2

PWM2_/_UP_DOWN

29

SCL

3

ISENSE

28

SDA

4

27

Unused

5

Reserved

26

Unused

6

Unused

25

Unused

7

Unused

24

Unused

8

VPEAK

23

COMM2

9

VSENSE

22

COMM1

10

FOD_CAL

21

CLK_IN

Reserved

bq500511

www.ti.com

SLUSCD3A – AUGUST 2015 – REVISED OCTOBER 2015

5 Pin Configuration and Functions

RHA Package

40-Pin VQFN

Top View

Pin Functions

PIN

I/O

DESCRIPTION

NAME

NO.

AVCC

40

—

Analog l power supply.

AVSS

36, 39

—

Analog ground.

DC buzzer output. A 400-ms DC pulse when charging begins. This could also be connected to an LED

BUZZ

15

O

via 1-k

Ω resistor.

CLK_IN

21

I

CLK_OUT signal from the internal oscillator of the bq50002 Analog Front End.

COMM1

22

I

Communication channel 1. Typically generated by the bq50002 Analog Front End.

COMM2

23

I

Communication channel 2. Typically generated by the bq50002 Analog Front End.

DRV_EN

37

O

Driver enable.

DVCC

32

—

Digital power supply.

DVSS

31

—

Digital ground.

Leave floating to conform to the WPC specification 205-kHz maximum operating frequency. Pull down

FLIM

33

I

with a 10-k

Ω resistor to limit the maximum frequency to 190 kHz.

FOD_CAL

10

I

FOD calibration.

FOD_THR

35

I

FOD threshold.

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