Datasheet > ACT2802

ACT2802

更新时间： 2024-11-18 01:22:39

品牌	Logo	应用领域
技领 - ACTIVE-SEMI		电池
页数	文件大小	规格书
21页	586K
描述
5V/2.5A Backup Battery Pack Manager

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中文翻译

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数据手册

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ACT2802 数据手册

ACT2802

Rev 0, 21-Jan-14

5V/2.5A Backup Battery Pack Manager

FEATURES

 Dedicated Single Chip Solution for Mobile

APPLICATIONS

 Backup Battery Pack

 Power Bank

Power With Minimal Component Count

 5V/2.5A Constant Output Current Limit in

Boost Mode

 2.5A Switching Charger Current Limit

 Programmable 4.1V to 4.35V Battery Voltage

 95% Boost Efficiency (Vbat=4.1V)

 Adaptive to 10mA-2400mA Input Sources

 Battery Disconnection at Output Short

 Mobile Power

 Standalone Battery Charger with USB Output

GENERAL DESCRIPTION

ACT2802 is a space-saving and high-performance

low-profile single-chip solution for backup battery

pack and standalone battery charger. ACT2802

integrates all the functions that a backup battery

pack needs, including switching charger, boost

converter and LED indication.

 <10µA Low Battery Leakage Current at HZ

Mode During Storage

 Boost Auto Turn-off at No Load and Push

Button Turn-on

 Battery Over Current, Over Voltage, Over

ACT2802 operates at 1.1MHz for switching charger

and 0.55MHz for boost converter allowing tiny

external inductor and capacitors. ACT2802 provides

a direct power path from input to output with

programmable current limit while providing power

to switching charger. Output has higher priority than

battery charger if the programmed input current limit

is reached.

Temperature and Short Circuit Protections

 Boost Auto Startup with Load Detection

 Up to 3.0A Input Current Limit with Prioritized

Power Path to Output

 5V+/-100mV Output Voltage in Boost Mode

 1.1MHz/0.55MHz Switching Frequencies

 2.2uH Inductor and Low Profile Ceramic

ACT2802 charges battery with full cycle of

preconditioning, fast charge with constant current

and constant voltage until end of charge. The

battery charger is thermally regulated at 110°C with

charge current foldback.

Capacitors

 4 LEDs Battery Level and Status Indication

 Battery Impedance Compensation

 Full Cycle of Battery Charge Management

Preconditioning, Fast Charge, Top off and End

of Charge

ACT2802 boost converter steps battery voltage up

to 5V. Boost converter features high efficiency,

constant current regulation, short circuit protection

and over voltage protection.

 Charge Current Foldback at 110°C Die

Temperature

 IC Over Temperature Protection at 160°C

 QFN4x4-24 Package

ACT2802 provides 3.5mA constant currents to drive

4 LEDs to indicate battery level and charge status.

Boost CC/CV Profile

5.5

V_BAT=3.2V

5.0

V_BAT=3.7V

4.5

4.0

V_BAT=4.1V

3.5

3.0

0.3

0.6

0.9

1.2

1.5

1.8

2.1

2.4

2.7

Output Current (A)

Innovative Power^TM

- 1 -

www.active-semi.com

ActiveSwitcher^TMis a trademark of Active-Semi.

12 3 4 5 6 7...21

中文翻译

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与ACT2802相关器件

型号	品牌	获取价格	描述	数据表
ACT2802_16	ACTIVE-SEMI	获取价格	5V/2.5A Backup Battery Pack Manager
ACT2802B	ACTIVE-SEMI	获取价格	5V/2.5A Backup Battery Pack Manager
ACT2802BQL-T1028	ACTIVE-SEMI	获取价格	5V/2.5A Backup Battery Pack Manager
ACT2802C	ACTIVE-SEMI	获取价格	5V/2.5A Backup Battery Pack Manager
ACT2802CQL-T1028	ACTIVE-SEMI	获取价格	5V/2.5A Backup Battery Pack Manager
ACT2802QL-T	ACTIVE-SEMI	获取价格	5V/2.5A Backup Battery Pack Manager
ACT2802QL-T1026	ACTIVE-SEMI	获取价格	5V/2.5A Backup Battery Pack Manager
ACT2802QL-T1028	ACTIVE-SEMI	获取价格	5V/2.5A Backup Battery Pack Manager
ACT2803	ACTIVE-SEMI	获取价格	5V/2.4A Dual Cell Battery Power Manager
ACT2803_16	ACTIVE-SEMI	获取价格	5V/2.4A Dual Cell Battery Power Manager

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