RT9502

更新时间： 2024-09-25 12:23:43

品牌	Logo	应用领域
立锜 - RICHTEK		电池单锂离子电池
页数	文件大小	规格书
13页	318K
描述
Linear Single Cell Li-Ion Battery Charger IC with Dual Input Supply

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技术参数
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RT9502 技术参数

Status：	Active	Vin (min) (V)：	4.5
Vin (max) (V)：	6	Battery Charge Voltage (max) (V)：	4.2
Battery Charge Current (max) (A)：	1.2	Input Source：	AC Adapter;USB
Features：	Enable Input;OVP;Power Good	Package Type：	WDFN3x3-10

RT9502 数据手册

RT9502

Linear Single Cell Li-Ion Battery Charger IC with

Dual Input Supply

General Description

Features

^zAutomatic Input Supplies Selection

^z18V Maximum Rating for AC Adapter

^zIntegrated Selectable 100mA and 500mA USB

Charge Current

The RT9502 is a fully integrated low cost single-cell Li-

Ion battery charger IC ideal for portable applications. The

RT9502 is capable of being powered up fromAC adapter

and USB (Universal Serial Bus) port inputs. The RT9502

can automatically detect and select the AC adapter and

the USB port as the power source for the charger. The

RT9502 enters sleep mode when both supplies are

removed.

^zInternal Integrated P-MOSFETs

^zAC Adapter Power Good Status Indicator

^zCharge Status Indicator

^zUnder Voltage Protection

^zOver Voltage Protection

The RT9502 optimizes the charging task by using a control

algorithm including precondition mode, fast charge mode

and constant voltage mode. The charging task is

terminated as the charge current drops below the preset

threshold. The USB charge current can be selected from

preset ratings of 100mAand 500mA, while theAC adapter

charge current can be programmed up to 1A with an

external resister. The internal thermal feedback circuitry

regulates the die temperature to optimize the charge rate

for all ambient temperatures.

^zAutomatic Recharge Feature

^zBattery Temperature Monitoring

z Small 10-Lead WDFN Package

z Thermal Feedback Optimizing Charge Rate

z RoHS Compliant and 100% Lead (Pb)-Free

Applications

z Digital Cameras

z Cellular Phones

z Personal Digital Assistants (PDAs)

z MP3 Players

The RT9502 features 18Vand 7V maximum rating voltages

forAC adapter and USB port inputs respectively. The other

features are under voltage protection, over voltage

protection forAC adapter supply and battery temperature

monitoring.

z Hand Held PCs

Pin Configurations

(TOP VIEW)

Ordering Information

RT9502

ACIN

USB

BATT

Package Type

QW : WDFN-10L 3x3 (W-Type)

GND

CHG_S

ISETU

ISETA

PGOOD

GND

Lead Plating System

P : Pb Free

WDFN-10L 3x3

G : Green (Halogen Free and Pb Free)

Note :

Marking Information

Richtek products are :

` RoHS compliant and compatible with the current require-

ments of IPC/JEDEC J-STD-020.

` Suitable for use in SnPb or Pb-free soldering processes.

For marking information, contact our sales representative

directly or through a Richtek distributor located in your

area.

DS9502-02 April 2011

www.richtek.com

12 3 4 5 6 7...13

中文翻译

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与RT9502相关器件

型号	品牌	获取价格	描述	数据表
RT9503	RICHTEK	获取价格	Fully Integrated Linear Single Cell Li-Ion Battery Charger with Power Path
RT9503A	RICHTEK	获取价格	Fully Integrated Linear Single Cell Li-Ion Battery Charger with Power Path
RT9505	RICHTEK	获取价格	Linear Single Cell Li-Ion Battery Charger IC
RT9511	RICHTEK	获取价格	Fully Integrated Battery Charger with Two Step-Down Converters
RT9513	RICHTEK	获取价格	Linear Single Cell Li-Ion Battery Charger IC
RT9514	RICHTEK	获取价格	Linear Single Cell Li-Ion Battery Charger IC
RT9515	RICHTEK	获取价格	Linear Single Cell Li-Ion Battery Charger IC
RT9516	RICHTEK	获取价格	Linear Single Cell Li-lon Battery Charger with Single Input Supply for Portable Applicatio
RT9519	RICHTEK	获取价格	Linear Single Cell Li-lon Battery Charger with Auto Power Path Management
RT9519A	RICHTEK	获取价格	Linear Single Cell Li-lon Battery Charger with Auto Power Path Management

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