RT9502GQW 데이터 시트보기 (PDF) - Richtek Technology

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RT9502GQW

Linear Single Cell Li-Ion Battery Charger IC with Dual Input Supply

Richtek Technology 

Function Block Diagram

USB

SENSE

MOSFET

USB

P-MOSFET

RT9502

Charge Input

Selection

ACIN

2.5V

OVP

Comparator

+

OVP

-

SENSE

MOSFET

ACIN

P-MOSFET

ISETA

GND

1.5k

7.5k

1uA

2.5V

0.5V

0.25V

Precharge

VREF

ACIN/USB

Thermal

Sense

VFB

115 C

DRV

VCC/USB

Loop Controller

Termination

Comparator

-

0.25V +

0.9V -

Charge

Disable

+

1uA

VREF Thermal

Sense

Logic

Temperature Fault

Temperature

Sense

BATT

PGOOD

CHG_S

ISETU EN

TS

DS9502-02 April 2011

www.richtek.com

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