Datasheet > RT9471D

RT9471D

更新时间： 2024-01-31 16:51:25

品牌	Logo	应用领域
立锜 - RICHTEK		电池
页数	文件大小	规格书
47页	6161K
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技术参数
数据手册

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RT9471D 技术参数

Status：	Active	Vin (min) (V)：	3.9
Vin (max) (V)：	13.5	Battery Charge Voltage (max) (V)：	4.7
Battery Charge Current (max) (A)：	3.15	Input Source：	AC Adapter;USB
Features：	Adjustable Current Limit;Cycle-by-Cycle Current Limit;OCP;OVP;SCP;UVP	Package Type：	WQFN4x4-24

RT9471D 数据手册

RT9471/D

3A Single Cell Switching Battery Charger

General Description

Features

 High Efficiency, 1.5MHz, Synchronous Switch-

The RT9471/D is a highly-integrated 3A switch mode

battery charge management and system power path

management device for single cell Li-Ion and Li-polymer

battery. The low impedance power path optimizes

switch-mode operation efficiency, reduces battery

charging time and extends battery life during

discharging phase. The I²C serial interface with

charging and system settings makes the device a truly

flexible solution.

Mode Buck Charger

 92% Charge Efficiency at 2A with 5V Input and

3.8V Battery

 Support 3.9V to 13.5V Input Voltage Range

 Average Input Current Regulation (AICR)

 Minimum Input Voltage Regulation (MIVR)

 Minimum Input Voltage Regulation Track

(MIVR Track)

 Charge Current Regulation (CCR)

 Charge Voltage Regulation (CVR)

 Charge Voltage Regulation Track (CVR Track)

 Junction Thermal Regulation (JTR)

 Supports USB On-The-Go (OTG)

 92% Boost Efficiency at 1A with 3.8V Battery

and 5.15V Output

Ordering Information

RT9471/D

Pin 1 Orientation***

(2) : Quadrant 2, Follow EIA-481-D

Package Type

QW : WQFN-24L 4x4 (W-Type)

(Exposed Pad-Option 2)

 OTG Current Limit Regulation (OCLR)

 OTG Voltage Limit Regulation (OVLR)

 Protection

Lead Plating System

G : Green (Halogen Free and Pb Free)

Function Support

 Over-Temperature Protection (OTP)

 VBUS Over-Voltage Protection (VBUS OVP)

 Battery Over-Voltage Protection (VBAT OVP)

 System Over-Voltage Protection (VSYS OVP)

 System Under-Voltage Protection (VSYS UVP)

 System Over-Load Protection (VSYS OLP)

 Cycle-by-Cycle Over-Current Protection (OCP)

 OTG Low Battery Protection (OTG LBP)

Default : Pin2 : PSEL, Pin3 : PG

D : Pin2 : D+, Pin3 : D-

Note :

***Empty means Pin1 orientation is Quadrant 1

Richtek products are :

 RoHS compliant and compatible with the current

requirements of IPC/JEDEC J-STD-020.

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

Applications

 Smart Phone/Tablet PC

 Personal Information Appliances

 Portable Device and Accessory

Simplified Application Circuit

RT9471/D

VAC

BTST

USB

VBUS

CBTST

System

CSYS

CBUS

PMID

QON

SYS

BAT

CBAT

REGN

I C BUS

Host

Host control

Battery

Pack

is a registered trademark of Richtek Technology Corporation.

DS9471/D-02 August 2019

www.richtek.com

12 3 4 5 6 7...47

中文翻译

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与RT9471D相关器件

型号	品牌	获取价格	描述	数据表
RT9472	RICHTEK	获取价格	3A Single Cell Switching Battery Charger
RT9472D	RICHTEK	获取价格	3A Single Cell Switching Battery Charger
RT9480	RICHTEK	获取价格	暂无描述
RT9480_17	RICHTEK	获取价格	Easy to Use Power Bank Solution Integrated Chip
RT9480GQW	RICHTEK	获取价格	Easy to Use Power Bank Solution Integrated Chip
RT9481	RICHTEK	获取价格	暂无描述
RT9485	RICHTEK	获取价格	暂无描述
RT9490	RICHTEK	获取价格	5A 2-4 Cell Buck-Boost Switching Battery Charger
RT9492	RICHTEK	获取价格	5A 1-4 Cell Buck-Boost Switching Battery Charger
RT94BR08GYT	AMPHENOL	获取价格	Combination Line Connector, 8 Contact(s), Male, Solder Terminal, Receptacle

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