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ACT2801CQL-T1028

更新时间： 2024-10-27 01:05:27
品牌 Logo 应用领域
技领 - ACTIVE-SEMI 电池
页数 文件大小 规格书
25页 2435K
描述
5V/1.5A Backup Battery Pack Manager

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ACT2801CQL-T1028 数据手册

 浏览型号ACT2801CQL-T1028的Datasheet PDF文件第2页浏览型号ACT2801CQL-T1028的Datasheet PDF文件第3页浏览型号ACT2801CQL-T1028的Datasheet PDF文件第4页浏览型号ACT2801CQL-T1028的Datasheet PDF文件第5页浏览型号ACT2801CQL-T1028的Datasheet PDF文件第6页浏览型号ACT2801CQL-T1028的Datasheet PDF文件第7页 
ACT2801/ACT2801B/ACT2801C  
Rev 9, 14-Mar-17  
5V/1.5A Backup Battery Pack Manager  
FEATURES  
APPLICATIONS  
Backup Battery Pack  
Power Bank  
Mobile Power  
Standalone Battery Charger with USB Output  
Dedicated Single Chip Solution for Mobile Power  
With Minimal Component Count  
5V/1.5A Constant Output Current Limit in Boost  
Mode  
1.5A Switching Charger 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  
GENERAL DESCRIPTION  
ACT2801/ACT2801B/ACT2801C is a space-saving  
and high-performance low-profile single-chip  
solution for backup battery pack and standalone  
battery charger. ACT2801/ACT2801B/ACT2801C  
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  
ACT2801/ACT2801B/ACT2801C  
operates  
at  
Battery Over Current, Over Voltage, Over  
1.1MHz for switching charger and 0.55MHz for  
boost converter allowing tiny external inductor and  
Temperature and Short Circuit Protections  
capacitors.  
ACT2801/ACT2801B/ACT2801C  
Boost Auto Startup with Load Detection  
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.  
Up to 2.0A Input Current Limit with Prioritized  
Power Path to Output  
5V+/-100mV Output Voltage in Boost Mode  
1.1MHz/0.55MHz Switching Frequencies  
ACT2801/ACT2801B/ACT2801C 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.  
2.2uH SMD Inductor and Low Profile Ceramic  
Capacitor  
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  
ACT2801/ACT2801B/ACT2801C 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  
ACT2801/ACT2801B/ACT2801C provides 3.5mA  
constant currents to drive 4 LEDs to indicate  
battery level and charge status. Battery impedance  
is compensated for battery level indication.  
IC Over Temperature Protection at 160°C  
QFN4x4-24 Package  
Vbat  
Boost CC/CV Curve  
5.5  
VBAT =3.7V  
5.0  
Vin  
Vout  
LED1 LED2 LED3  
LED4 BAT  
VOUT  
VBAT =3.2V  
VIN  
RIMC  
BLVS  
TH  
SW  
4.5  
4.0  
Vbat  
ACT2801  
PB  
L1 2.2uH  
Rcs  
50mΩ  
R7  
2.7Ω  
PB  
CSP  
C3  
22µF  
10V  
C1  
4.7uF  
10V  
CSN  
PGND  
VBAT =4.1V  
ILIM  
AGND HZ BTV  
IOST ICST  
NTC  
3.5  
C2  
22uF  
10V  
R3  
R4  
97.6k 39k  
R1  
R2  
R5  
100k  
R6  
60k  
25k 1.5k  
3.0  
0
200  
400  
600  
800  
1000  
1200  
1400  
GND  
Output Current (mA)  
Innovative PowerTM  
- 1 -  
www.active-semi.com  
Copyright © 2015-2017 Active-Semi, Inc.  
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