D2761EB(2003) Ver la hoja de datos (PDF) - Maxim Integrated

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componentes Descripción

Fabricante

D2761EB
(Rev.:2003)

High-Precision Li+ Battery Monitor

Maxim Integrated 

www.maxim-ic.com

FEATURES

§ Lithium-Ion (Li+) Safety Circuit

- Overvoltage Protection

- Overcurrent/Short-Circuit Protection

- Undervoltage Protection

§ Zero Volt Battery Recovery Charge

§ 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 ±1.9A Dynamic Range

- External Sense Resistor Configuration:

15.625mV LSB and ±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°C Resolution

§ System Power Management and Control

Feature Support

§ 32 Bytes of Lockable EEPROM

§ 16 Bytes of General-Purpose SRAM

§ Dallas 1-Wire® Interface with Unique 64-bit

Device Address

§ Low Power Consumption:

- Active Current: 60mA typ, 90mA max

- Sleep Current: 1mA typ, 2mA max

DS2761

High-Precision Li+ Battery Monitor

PIN CONFIGURATION

12 3 4

CC 1

16 VIN

PLS 2

15 VDD

DC 23

14 PIO

SNS 4

13 VSS

SNS 5

12 VSS

SNS 6

11 VSS

DQ 7

10 PS

IS2 8

9 IS1

DS2761

16-Pin TSSOP Package

PLS DC

A

SNS

B

DQ

CC SNS

Probe

VIN VSS

Probe

VDD PIO

VSS

C

IS2

D

IS1

E

PS F

DS2761

Flip-Chip Packaging*

Top View

PIN DESCRIPTION

CC - Charge Control Output

DC - Discharge Control Output

DQ - Data Input/Output

PIO - Programmable I/O Pin

PLS - Battery Pack Positive Terminal Input

PS - Power Switch Sense Input

VIN - Voltage-Sense Input

VDD - Power-Supply Input (2.5V to 5.5V)

VSS - Device Ground

SNS - Sense Resistor Connection

IS1 - Current-Sense Input

IS2 - Current-Sense Input

SNS Probe - Do Not Connect

VSS Probe - Do Not Connect

* Mechanical drawing for the 16-pin TSSOP and DS2761 flip-chip package can be found at:

http://pdfserv.maxim-ic.com/arpdf/Packages/16tssop.pdf

http://pdfserv.maxim-ic.com/arpdf/Packages/chips/2761x.pdf

1-Wire is a registered trademark of Dallas Semiconductor.

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