RT9513GQW データシートの表示（PDF） - Richtek Technology

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RT9513GQW

Linear Single Cell Li-Ion Battery Charger IC

Richtek Technology 

RT9513

Functional Pin Description

Pin No.

Pin Nam e

Pin Function

1

ACIN

Wall Adaptor Charge Input Supply.

2, 7, 9

NC

No Internal Connection.

3

C HG_S

Charge Status Indicator Output (open drain).

4

PGOOD

Power Good Indicator Output (open drain).

5

GND

Groun d.

6

I SE TA

Wall Adaptor Supply Charge Current Set Point.

8

EN

Charge Enable Input (active low).

10

BATT

Battery Charge Current Output.

Exposed Pad (11) GND

Ground. The exposed pad must be soldered to a large PCB and connected to

GND for maximum power dissipation.

Function Block Diagram

ACIN

GND

Charge Input

Selection

SENSE

FET

ACIN

PFET

OVP

Comparator

2.5V +

-

OVP

ISETA

2.5V

0.5V

0.25V

VREF

Thermal

Sense

115 C

2.5V

+

-

V/I

V/I

BATT

Precharge

Comparator

+

2.5V -

Precharge

Recharge

Comparator

+

2.5V -

Recharge

Current

Amplifier

0.25V

2.5V

Precharge

Tcrmination

+

Comparator

-

-

0.25V +

0.9V -

Charge

Disable

+

1uA

Voltage

Amplifier

Charge Done

VCC

Logic

PGOOD

CHG_S

EN

www.richtek.com

2

DS9513-01 April 2011

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