Datasheet > RT9532H

RT9532H

更新时间： 2024-04-09 19:01:39

品牌	Logo	应用领域
立锜 - RICHTEK		电池
页数	文件大小	规格书
18页	423K
描述
Linear Single Cell Li-Ion Battery Charger IC for Portable Applications

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RT9532H 数据手册

RT9532H

Linear Single Cell Li-Ion Battery Charger IC for Portable

Applications

General Description

Features

^28V Maximum Rating for DC Adapter

^Internal Integrated Power MOSFETs

^Support 4.35V/2.3A Factory Mode

^50mA Low Dropout Voltage Regulator

^Status Pin Indicator

The RT9532H is a fully integrated single cell Li-ion battery

charger IC ideal for portable applications. The RT9532H

optimizes the charging task by using a control algorithm

including pre-charge mode, fast charge mode and constant

voltage mode. The input voltage range of the VINpin can

be as high as 28V. When the input voltage exceeds the

OVP threshold, it will turn off the charging MOSFET to

avoid overheating of the chip.

^Programmed Charging Current

^Under Voltage Lockout

^Over Voltage Protection

^Thermal Feedback Optimized Charge Rate

^RoHS Compliant and Halogen Free

In RT9532H, the maximum charging current can be

programmed with an external resistor. For USB application,

the user can set the current to 100mA/500mA through

the EN/SET pin. For the factory mode, the RT9532H can

allow 4.35V/2.3A power pass through to support system

operation. It also provides a 50mA LDO to support the

power of peripheral circuit. The internal thermal feedback

circuit regulates the die temperature to optimize the

charge rate for all ambient temperatures. The RT9532H

provides protection functions such as under voltage

protection, over voltage protection for VIN supply and

thermal protection for battery temperature.

Applications

 Cellular Phones

 Digital Cameras

 PDAs and Smart Phones

 Portable Instruments

Marking Information

02 : Product Code

YMDNN : Date Code

02 YM

DNN

The RT9532H is available in a WDFN-10L 3x2 package to

achieve optimized solution for PCB space and thermal

considerations.

The recommended junction temperature range is −40°C

to 125°C, and the ambient temperature range is −20°C to

85°C.

Simplified Application Circuit

RT9532H

Adapter or USB

BATT

VIN

BATT

OUT

PGB

CHGSB

BATT

ISET

LDO

ISET

EN/SET

IEOC

GND

is a registered trademark of Richtek Technology Corporation.

DS9532H-02 September 2023

www.richtek.com

12 3 4 5 6 7...18

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