Datasheet > RT9527L

RT9527L

更新时间： 2024-01-17 11:31:32

品牌	Logo	应用领域
立锜 - RICHTEK		电池
页数	文件大小	规格书
14页	191K
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数据手册

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RT9527L 技术参数

Status：	Active	Vin (min)(V)：	4.4
Vin (max)(V)：	6	Battery Charge Voltage (max)(V)：	4.16
Battery Charge Current (max)(A)：	0.6	Input Source：	AC Adapter;USB
Features：	OVP;Power Good;UVP	Package Type：	WDFN2x2-8
Datasheet：	https://datasheet5.oss-cn-shanghai.aliyuncs.com/datasheets/richtek/DS9527L-02.pdf

RT9527L 数据手册

RT9527L

Single Cell Li-Ion Battery Charger with Adjustable Charging

Current for Portable Applications

General Description

Features

^28V Maximum Rating for AC Adapter

^Internal Integrated Power FETs

^Adjustable Charging Current

The RT9527L is a low cost single-cell Li-ion charger for

low current charge applications.

The RT9527L can be powered up by an AC adapter or

USB (Universal Serial Bus) port inputs. The RT9527Lenters

sleep mode when VIN power is removed. The RT9527L

optimizes the charging task by using a control algorithm,

which includes pre-charge mode, fast-charge mode and

constant voltage mode. The charging task is kept in

constant voltage mode to hold the battery in a full charge

condition. The charge current is adjustable via an external

resistor. The internal thermal feedback circuitry regulates

the die temperature to optimize the charge rate for all

ambient temperatures. The RT9527L features 28V

maximum rating voltages for VIN. Other features include

under-voltage protection and over-voltage protection for the

AC adapter supply.

^Programmable Safe Charge Timer

^NTC Thermistor Input

^Battery Reverse Protection

^ISET Pin Short Protection

^Charge Status Indicator

^AC Adapter Power Good Status Indicator

^End of Charge Current is 10% of Fast-Charge Current

^Under-Voltage Protection

 Over-Voltage Protection

 Thermal Feedback Optimized Charge Rate

 RoHS Compliant and Halogen Free

Applications

 Cellular Phones

The RT9527L is available in the small thermally enhanced

WDFN-8L 2x2 package.

 Digital Cameras

 PDAs and Smart Phone

 Portable Instruments

Ordering Information

RT9527L

Marking Information

Package Type

QW : WDFN-8L 2x2 (W-Type)

2B : Product Code

W : Date Code

2BW

Lead Plating System

G : Green (Halogen Free and Pb Free)

Note :

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.

Simplified Application Circuit

Battery

BAT

Input Power

VIN

RT9527L

PGOOD

CHG

TIMER

ISET

Indicator

GND

is a registered trademark of Richtek Technology Corporation.

DS9527L-02 January 2017

www.richtek.com

12 3 4 5 6 7...14

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