bq26500

SLUS567A − JUNE, 2003 − REVISED OCTOBER 2003

4

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UDG−03039

(a)

(b)

(c)

(d)

Break

7−Bit Address

R/W

8−Bit Data

t(B)

t(BR)

1−bit

t(HW1)

t(DW1)

t(HW0)

t(DW0)

t(CYCH)

t(CYCD)

t(RSPS)

Figure 1. HDQ Bit Timing Diagrams

PIN ASSIGNMENTS

TERMINAL

I/O

DESCRIPTION

NAME

NO.

I/O

DESCRIPTION

BAT

5

I

Battery voltage sense input

GPIO

8

I/O

General-purpose input/output port

HDQ

4

I/O

Single-wire HDQ serial interface

RBI

1

I

Register back-up input

SRN

6

I

Current sense input (negative)

SRP

7

I

Current sense input (positive)

VCC

2

I

VCC supply input

VSS

3

I

Ground input

1

2

3

4

8

7

6

5

RBI

VCC

VSS

HDQ

GPIO

SRP

SRN

BAT

PW PACKAGE

(TOP VIEW)

AVAILABLE OPTIONS

TA

PACKAGED

DEVICES(1)

MARKINGS

−20

°C to 70°C

bq26500PW

26500

(1) The PW package is available taped and reeled. Add R suffix to device type (e.g. bq26500PWR) to

order quantities of 2,000 devices per reel.