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 14
Download datasheet (173Kb)

FEATURES

APPLICATIONS

TYPICAL APPLICATION

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

CHARGER

LOAD

4.7μF

DISCHG

4150 TA01a

μP

DESCRIPTION

The LTC

in handheld PC and portable product applications. The

device 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

ﬁ xed quantity of charge ﬂ owing 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.

L, LT, LTC, LTM, Linear Technology, the Linear logo, Burst Mode are registered trademarks and

ThinSOT and PowerPath are trademarks of Linear Technology Corporation. All other trademarks

are the property of their respective owners.

4150 measures battery depletion and charging

Battery Gas Gauge

Coulomb Counter/

–0.1

–0.2

–0.3

–0.4

–0.5

0.5

0.4

0.3

0.2

0.1

Integral Nonlinearity, % of Full Scale

–50

CURRENT SENSE VOLTAGE (mV)

–25

LTC4150

4150 TA01b

4150fc

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