Datasheet > ACT2804

ACT2804

更新时间： 2024-11-18 01:02:11

品牌	Logo	应用领域
技领 - ACTIVE-SEMI		电池
页数	文件大小	规格书
20页	1977K
描述
5V/3.4A Dual Cell Backup Battery Power Manager

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中文翻译

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数据手册

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ACT2804 数据手册

ACT2804

Rev 2, Feb-04-2016

5V/3.4A Dual Cell Backup Battery Power Manager

 Battery Over-charge and Over-discharge

FEATURES

Protections

 Dedicated Single-chip Integrated Battery Power

 Charge/Discharge Thermal Regulation

 TQFN5x5-40 Package

Manager

 Dual Cell Battery Charger with Cell Balancing

Management

APPLICATIONS

 Auto Detection support USB BC1.2, Chinese

YD/T 1591-2009, Apple 2.4A, and Samsung

Devices

 Backup Battery Pack

 Power Bank

 Mobile Power

 Passed Apple MFi Test

 Standalone Battery Charger with USB Output

 4.5V-5.5V Input Voltage with 3.4A Input Current

Limit

GENERAL DESCRIPTION

 2.4A+1.0A Dual Outputs with CC Regulation

ACT2804 is a space-saving and dedicated single-

chip solution for dual-cell battery charge and

discharge. It takes 5V USB input source to charge a

dual cell battery with boost configuration in three

phases: preconditioning, constant current, and

constant voltage. Charge is terminated when the

current reaches 10% of the fast charge rate. The

battery charger is thermally regulated at 110˚C with

charge current foldback.

 5.07V+/-1% Output with Prioritized Power Path

from Input to Output

 4.2V/4.35V +/- 0.5% Battery Charge Voltage

Accuracy of Each Cell

 Output Plug-in Detection Wakeup and No Load

Detection Sleep Mode

 Optimized Power Path and Battery Charge

Control

If input 5V is not present, ACT2804 discharge a

dual cell battery with buck configuration to provide

5.07V+/-1% to output ports. There is a power path

from input to output. The cycle-by-cycle peak

current mode control, constant current regulation,

short circuit protection and over voltage protection

maximize safe operation.

 <10uA Low Battery Drainage Current

 I2C Port for Optimal System Performance and

Status Reporting

 Configurable Charge, Discharge and HZ modes

 >92% Charge and Discharge Efficiency at 3.4A

Output for Full Battery Range

ACT2804 provides 4 LED drive pins for battery

capacity level and charge status indication to

indicate 25%, 50%, 75%, and 75% above battery

level with battery impedance compensation. The

LED indication patterns are programmable .

 4 Modes of LED Operation

 Preconditioning for Deeply Depleted Battery

 Weak Input Sources Accommodation

 Safety:

 Input Over-voltage Protection

 Nearly Zero Power Short Circuit Protection

 Output Over-voltage Protection

ACT2804 is available in a thermally enhanced

5mmx5mm QFN55-40 package with exposed pad.

Buck Output CC/CV

1uF

6.0

22uF

LED4 LED3 LED2 LED1 VREG

22uF

BAT

BATS

BATP

V_IN

VIN

5.0

4.5V-5.5V

22uF

25mΩ

CSN2

CSP

V_BAT= 6.0V

25mΩ

510Ω

V_OUT2

5.07V/2.4A

4.0

3.0

CSN1

ACT2804

25mΩ

V_OUT1

BATC

CBD

VOUT

4.7uH

5.07V/1A

PGND

V_BAT= 8.2V

1A Output

2.4A Output

47Ω

47nF

HSB

BATN

2.0

22uF

510Ω

RIMC ICST

PB AGND

1.0

540k

10k

500

1000

1500

2000

2500

3000

Output Current (mA)

Innovative Power^TM

- 1 -

www.active-semi.com

12 3 4 5 6 7...20

中文翻译

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与ACT2804相关器件

型号	品牌	获取价格	描述	数据表
ACT2804_16	ACTIVE-SEMI	获取价格	5V/3.4A Dual Cell Backup Battery Power Manager
ACT2804_17	ACTIVE-SEMI	获取价格	5V/3.4A Dual Cell Battery Power Manager
ACT2804QJ-T	ACTIVE-SEMI	获取价格	5V/3.4A Dual Cell Backup Battery Power Manager
ACT2804QJ-T0435	ACTIVE-SEMI	获取价格	5V/3.4A Dual Cell Backup Battery Power Manager
ACT2813	ACTIVE-SEMI	获取价格	5V/2.4A Power Bank Solution
ACT2813_15	ACTIVE-SEMI	获取价格	5V/2.4A Power Bank Solution
ACT2813C	ACTIVE-SEMI	获取价格	5V/2.4A Power Bank Solution
ACT2813CQY-T	ACTIVE-SEMI	获取价格	5V/2.4A Power Bank Solution
ACT2813CQY-T0435	ACTIVE-SEMI	获取价格	5V/2.4A Power Bank Solution
ACT2813QY-T	ACTIVE-SEMI	获取价格	5V/2.4A Power Bank Solution

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