ST3S01LED datasheet(1/17 Pages) STMICROELECTRONICS

Il numero della parte	ST3S01LED

Spiegazioni elettronici	BATTERY CHARGE I.C.

PDF	17 Pages

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Produttore elettronici	STMICROELECTRONICS [STMicroelectronics]

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March 2003

s

DEDICATED I.C. FOR 1 LI-ION CELL OR 3

NI-MH CELLS

s

5 DIFFERENT OPERATING MODES

s

150 mA PRECHARGE CURRENT

s

VERY LOW DROP CHARGE SWITCH

(130mV @ 800mA)

s

VERY LOW DROP REVERSE SWITCH

(130mV @ 800mA)

s

5.7V OVER BATTERY OVER VOLTAGE

PROTECTION

s

CHARGER DETECTION MODE

s

(VCHARGE-VBATT)DETECTION MODE

DESCRIPTION

This specification describes a dedicated I.C.

which allows to charge 1 Lilon cell or 3 Nimh cells.

The principle used to charge the batteries is the

pulsed current, the monitoring is operated by the

micro-contoller

of

the

application.

This

IC

integrates one Power Switch and achieves the

charge batteries in two different modes charge or

precharge.

One of this operating mode (charge or precharge)

can be selected in a static or pulsed way by one I/

O from a micro-controller. The IC can supply

power to accessories controlled by this I.C. in

Reverse mode. The I.C. is available in the smaller

and surface mounted SO-8 (exposed pad version)

package.

ST3S01LED

BATTERY CHARGE I.C.

SCHEMATIC DIAGRAM

SO-8

exposed pad

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