LTC4150IMSPBF Linear Technology Corporation, LTC4150IMSPBF Datasheet

LTC4150IMSPBF

Manufacturer Part Number

LTC4150IMSPBF

Description

MSOP10

Manufacturer

Linear Technology Corporation

Datasheets

1.LTC4150IMSPBF.pdf (14 pages)

2.LTC4150IMSPBF.pdf (14 pages)

3.LTC4150IMSPBF.pdf (12 pages)

Specifications of LTC4150IMSPBF

Date_code

09+

Current page: 1 of 12
Download datasheet (121Kb)

FEATURES

APPLICATIO S

■

TYPICAL APPLICATIO

4.7μF

Indicates Charge Quantity and Polarity

±50mV Sense Voltage Range

Precision Timer Capacitor or Crystal Not Required

2.7V to 8.5V Operation

High Side Sense

32.55Hz/V Charge Count Frequency

1.5μA Shutdown Current

10-Pin MSOP Package

Battery Chargers

Palmtop Computers and PDAs

Cellular Telephones and Wireless Modems

SENSE

–

SENSE

–

LTC4150

SENSE

GND

SHDN

CLR

POL

INT

CHG

4.7μF

CHARGER

LOAD

DISCHG

4150 TA01a

μP

DESCRIPTIO

The LTC

handheld PC and portable product applications. The de-

vice monitors current through an external sense resistor

between the battery’s positive terminal and the battery’s

load or charger. A voltage-to-frequency converter trans-

forms the current sense voltage into a series of output

pulses at the interrupt pin. These pulses correspond to a

fixed quantity of charge flowing into or out of the battery.

The part also indicates charge polarity as the battery is

depleted or charged.

The LTC4150 is intended for 1-cell or 2-cell Li-Ion and

3-cell to 6-cell NiCd or NiMH applications.

All other trademarks are the property of their respective owners.

, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.

4150 measures battery depletion and charging in

–0.1

–0.2

–0.3

–0.4

–0.5

0.5

0.4

0.3

0.2

0.1

Battery Gas Gauge

–50

Integral Nonlinearity, % of Full Scale

Coulomb Counter/

CURRENT SENSE VOLTAGE (mV)

–25

LTC4150

4150 TA01b

4150fb

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