Datasheet > RT9503

RT9503

更新时间： 2024-09-25 11:59:23

品牌	Logo	应用领域
立锜 - RICHTEK		电池
页数	文件大小	规格书
15页	340K
描述
Fully Integrated Linear Single Cell Li-Ion Battery Charger with Power Path

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技术参数
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RT9503 技术参数

Status：	Active	Vin (min) (V)：	4.5
Vin (max) (V)：	12	Battery Charge Voltage (max) (V)：	4.2
Battery Charge Current (max) (A)：	1	Input Source：	AC Adapter;USB
Features：	Enable Input;OVP;Power Good	Package Type：	WQFN3x3-16

RT9503 数据手册

RT9503

Fully Integrated Linear Single Cell Li-Ion Battery Charger

with Power Path

General Description

Features

^zAutomatic Input Supplies Selection

^z18V Maximum Rating for AC Adapter

^zIntegrated Selectable 100mA and 500mA USB

Charge Current

The RT9503 is a fully integrated low cost single-cell Li-

Ion battery charger IC ideal for portable applications. The

RT9503 is capable of being powered up fromAC adapter

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

RT9503 can automatically detect and select the AC

adapter and the USB port as the power source for the

charger. The RT9503 enters sleep mode when both

supplies are removed.

^zInternal Integrated Power FETs

^zAC Adapter Power Good Status Indicator

^zCharge Status Indicator

^zExternal Capacitor Programmable Safety Timer

^zUnder Voltage Protection

The RT9503 optimizes the charging task by using a control

algorithm including preconditioning 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 ratings100mA and 500mA, while the AC 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.

^zOver Voltage Protection

^zAutomatic Recharge Feature

^zBattery Temperature Monitoring

z Small 16-Lead WQFN Package

z Thermal Feedback Optimizing Charge Rate

z Power Path Controller

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

Applications

z Digital Cameras

The RT9503 features 18Vand 7V maximum rating voltages

forAC adapter and USB port inputs respectively. The other

features are external programmed safety timer, under

voltage protection, over voltage protection forAC adapter

supply, battery temperature monitoring, power supply

status indicators and charge status indicator.

z Cellular Phones

z PDAs and Smart Phones and MP3

z Portable Instruments

Pin Configurations

(TOP VIEW)

Ordering Information

RT9503

Package Type

16 15 14 13

QW : WQFN-16L 3x3 (W-Type)

ACIN

USB

12 BATT

GND

Lead Plating System

P : Pb Free

CHG_S

TIMER

AC_PGOOD

G : Green (Halogen Free and Pb Free)

Note :

Richtek products are :

WQFN-16L 3x3

` 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.

Marking Information

For marking information, contact our sales representative

directly or through a Richtek distributor located in your

area.

DS9503-03 April 2011

www.richtek.com

12 3 4 5 6 7...15

中文翻译

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与RT9503相关器件

型号	品牌	获取价格	描述	数据表
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
RT9519B	RICHTEK	获取价格	Linear Single Cell Li-lon Battery Charger with Auto Power Path Management

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