Datasheet > FAN54011

FAN54011

更新时间： 2022-04-01 18:06:30

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		稳压器电池开关
页数	文件大小	规格书
37页	1093K
描述
USB-Compliant Single-Cell Li-Ion Switching Charger with USB-OTG Boost Regulator

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FAN54011 数据手册

September 2011

FAN54010 / FAN54011 / FAN54012 / FAN54013 /

FAN54014 / FAN54015

USB-Compliant Single-Cell Li-Ion Switching Charger with

USB-OTG Boost Regulator

Features

Description

The FAN54010 family (FAN5401X) combines

a highly

Fully Integrated, High-Efficiency Charger for Single-Cell

Li-Ion and Li-Polymer Battery Packs

integrated switch-mode charger, to minimize single-cell Lithium-

ion (Li-ion) charging time from a USB power source, and a

boost regulator to power a USB peripheral from the battery.

Faster Charging than Linear

Charge Voltage Accuracy:

0.5% at 25°C

1% from 0 to 125°C

The charging parameters and operating modes are

programmable through an I²C Interface that operates up to

3.4Mbps. The charger and boost regulator circuits switch at

3MHz to minimize the size of external passive components.

5% Input Current Regulation Accuracy

5% Charge Current Regulation Accuracy

20V Absolute Maximum Input Voltage

6V Maximum Input Operating Voltage

1.45A Maximum Charge Rate

The FAN5401X provides battery charging in three phases:

conditioning, constant current, and constant voltage.

To ensure USB compliance and minimize charging time, the

input current is limited to the value set through the I²C host.

Charge termination is determined by a programmable

minimum current level. A safety timer with reset control

provides a safety backup for the I²C host.

Programmable through High-Speed I²C Interface

(3.4Mb/s) with Fast Mode Plus Compatibility

–

Input Current

The integrated circuit (IC) automatically restarts the charge

cycle when the battery falls below an internal threshold. If the

input source is removed, the IC enters a high-impedance

mode with leakage from the battery to the input prevented.

Charge status is reported back to the host through the I²C

port. Charge current is reduced when the die temperature

reaches 120°C.

Fast-Charge / Termination Current

Charger Voltage

Termination Enable

3MHz Synchronous Buck PWM Controller with Wide

Duty Cycle Range

Small Footprint 1H External Inductor

The FAN5401X can operate as a boost regulator on

command from the system. The boost regulator includes a

soft-start that limits inrush current from the battery.

Safety Timer with Reset Control

1.8V Regulated Output from VBUS for Auxiliary Circuits

The FAN5401X is available in a 1.96 x 1.87mm, 20-bump,

0.4mm pitch WLCSP package.

Weak Input Sources Accommodated by Reducing

Charging Current to Maintain Minimum VBUS Voltage

Low Reverse Leakage to Prevent Battery Drain to VBUS

5V, 500mA Boost Mode for USB OTG for 3.0 to 4.5V

Battery Input

Applications

Cell Phones, Smart Phones, PDAs

Tablet, Portable Media Players

Gaming Device, Digital Cameras

Figure 1. Typical Application

All trademarks are the property of their respective owners.

FAN5401X Family • Rev. 1.0.2

www.fairchildsemi.com

12 3 4 5 6 7...37

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与FAN54011相关器件

型号	品牌	描述	获取价格	数据表
FAN54011UCX	FAIRCHILD	USB-Compliant Single-Cell Li-Ion Switching Charger with USB-OTG Boost Regulator	获取价格
FAN54011UCX(1)	FAIRCHILD	FAN54010 / FAN54011 / FAN54012 / FAN54013 / FAN54014	获取价格
FAN54012	FAIRCHILD	USB-Compliant Single-Cell Li-Ion Switching Charger with USB-OTG Boost Regulator	获取价格
FAN54012UCX	FAIRCHILD	USB-Compliant Single-Cell Li-Ion Switching Charger with USB-OTG Boost Regulator	获取价格
FAN54012UCX(1)	FAIRCHILD	FAN54010 / FAN54011 / FAN54012 / FAN54013 / FAN54014	获取价格
FAN54013	FAIRCHILD	USB-Compliant Single-Cell Li-Ion Switching Charger with USB-OTG Boost Regulator	获取价格

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