DS2751 Datasheet

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DS2751

Multichemistry Battery

Fuel Gauge

www.maxim-ic.com

FEATURES

搂

Available in Two Configurations

- Internal 25mW Sense Resistor

- External User-Selectable Sense Resistor

Current Measurement

- 12-Bit Bidirectional Measurement

- Internal Sense Resistor Configuration:

0.625mA LSB and 卤1.9A Dynamic Range

- External Sense Resistor Configuration:

15.625mV LSB and 卤64mV Dynamic

Range

Current Accumulation

- Internal Sense Resistor: 0.25mAhr LSB

- External Sense Resistor: 6.25mVhr LSB

Voltage Measurement with 4.88mV

Resolution

Temperature Measurement Using Integrated

Sensor with 0.125掳C Resolution

32 Bytes of Lockable EEPROM

16 Bytes of General-Purpose SRAM

Dallas 1-Wire

庐

Interface with Unique 64-Bit

Device Address

Supports 1-Cell Li+/Polymer or 3-Cell Ni

Battery Packs

3mm Dimension of 8-Pin TSSOP Package

Allows Mounting on Side of Thin Li+ and

Li+/Polymer Cells (Lead Free available)

Low Power Consumption:

- Active Current: 60mA (typ), 90mA (max)

- Sleep Current:

1mA (typ), 2mA (max)

PIN CONFIGURATION

V

IN

V

SS

PIO

V

DD

1

2

2

3

2

4

8

7

6

5

DQ

SNS

IS2

IS1

搂

DS2751E

8-Pin TSSOP Package

(Lead Free Available)

PIN DESCRIPTION

V

IN

V

SS

PIO

V

DD

IS1

IS2

SNS

DQ

Voltage-Sense Input

Device Ground

Programmable I/O Pin

Power-Supply Input (2.5V to 5.5V)

Current-Sense Input

Current-Sense Input

Sense Resistor Connection

Data Input/Output

搂

搂

搂

搂

搂

搂

搂

搂

搂

1-Wire is a registered trademark of Dallas Semiconductor.

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