Maxim > Products > Power and Battery Management > DS2762

DS2762

High-Precision Li+ Battery Monitor with Alerts

1-Wire Battery Monitor Integrates Single-Cell Protector and Alerts System when Current or Temperature Exceeds User-Defined Limits

Overview

Technical Documents

Ordering Info

Status

Part Number	Status
DS2762	Active: In Production. See Ordering Information for details.

Description

The DS2762 high-precision Li+ battery monitor is a data-acquisition, information-storage, and safety-protection device tailored for cost-sensitive battery pack applications. This low-power device integrates precise temperature, voltage, and current measurement, nonvolatile (NV) data storage, and Li+ protection into the small footprint of either a TSSOP package or flip-chip package. The DS2762 is a key component in applications including remaining capacity estimation, safety monitoring, and battery-specific data storage.

Data Sheet

Download	Rev 2	(PDF, 268kB)
E-Mail

An evaluation kit is available: DS2762K

NOTE: This product uses the following:
DS2762K Evaluation Kit Software

Key Features

Li+ Safety Circuit
- Overvoltage Protection
- Overcurrent/Short-Circuit Protection
- Undervoltage Protection
Host Alerted When Accumulated Current or Temperature Exceeds User-Selectable Limits
0V Battery Recovery Charge
Available in Two Configurations:
- Internal 25mΩ 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: 15.625µV LSB and ±64mV Dynamic Range
Current Accumulation:
- Internal Sense Resistor: 0.25mAhr LSB
- External Sense Resistor: 6.25µVhr 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: 60µA typ, 90µA max
- Sleep Current: 1µA typ, 2µA max

Applications/Uses

Cell Phones/Smartphones
Digital Cameras
PDAs

Key Specifications:

Battery Protectors, Selectors and Monitors

Part Number

Functions

Battery Type

Interface

User Data Storage
(Bytes)

Parameters Measured

Battery Protection

V_SUPPLY
(V)

Package/Pins

Smallest Available Pckg.
(mm²)

Oper. Temp.
(°C)

Budgetary Price

min

max

max w/pins

See Notes

DS2762

Fuel Gauge

Protector

Status Monitor

1 Cell Li-Ion

1-Wire

16 SRAM

32 EEPROM

Current

Temperature

Voltage

Over-Current

Over/Under Voltage

2.5

5.5

FCHIP/12

TSSOP/16

-40 to +85

$2.48 @1k

See All Battery Protectors, Selectors and Monitors (34)

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Diagram

Pin Configurations

Notes and Comments

Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device may be simultaneously available through various sales channels. For information about device errata, click here: www.maxim-ic.com/errata.

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Information Index

Overview		Technical Documents		Ordering Info		Related Products
Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet Application Notes Evaluation Kits Product Guides Reliability Reports Software/Models		Price and Availability Samples Buy Online Package Information Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

Rev 2; 2006-01-09
This page last modified: 2008-03-07