DS2756(2006) 查看數據表（PDF） - Maxim Integrated

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DS2756
(Rev.:2006)

High-Accuracy Battery Fuel Gauge with Programmable Suspend Mode

Maxim Integrated 

DS2756: High-Accuracy Battery Fuel Gauge with Programmable Suspend Mode

Figure 2. Functional Diagram

DQ

THERMAL

SENSE

VIN

IS2

1-WIRE

INTERFACE

AND

ROM ID

VOLTAGE

REFERENCE

M

U

ADC

X

-

+

S

LOCKABLE EEPROM

BLOCKS

SRAM

TEMPERATURE

VOLTAGE

CURRENT

ACCUM. CURRENT

COMPARATORS

STATUS / CONTROL

BIAS

VDD

PRECISION

TIMEBASE

Low Power

Oscillator

PIO

IS1

10KW

10KW

SNS

chip ground

VSS

DETAILED PIN DESCRIPTION

Pin

Name Description

1

VIN

Battery Voltage-Sense Input. Voltage measurement performed on VIN input and displayed

in Voltage Register.

2

VSS

Device Ground and Current-Sense Resistor Connection. VSS attaches to battery end of

sense resistor.

3

PIO General-Purpose Programmable I/O Pin or Optional Interrupt Output

4

VDD

Input Supply: +3.0V to +5.5V Input Range. Bypass VDD to VSS with 0.1mF.

5

IS1 Current-Sense Filter Input 1

6

IS2 Current-Sense Filter Input 2

7

SNS Sense Resistor Connection. SNS attaches to pack end of current sense resistor.

8

DQ

Serial Interface Data I/O Pin. Bidirection data transmit and receive at 16kbps or 143kbps.

Optional interrupt output.

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