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ACT2813C fiches techniques PDF

Active-Semi - 5V/2.4A Power Bank Solution

Numéro de référence ACT2813C
Description 5V/2.4A Power Bank Solution
Fabricant Active-Semi 
Logo Active-Semi 





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ACT2813C fiche technique
ACT2813/ACT2813C
FEATURES
Dedicated Single Chip Solution for Mobile Power
With Minimal Component Count
2.4A Continuous Output Current in Boost Mode
2.4A Switching Charger Current
96% Boost Efficiency (Vbat=4.1V)
Adaptive to 10mA-2400mA Input Sources
Battery Disconnection at Output Short
<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
Temperature and Short Circuit Protections
Boost Auto Startup with Load Detection
Prioritized Power Path from Input to Output
5V+/-100mV Output Voltage in Boost Mode
1.1MHz/0.55MHz Switching Frequencies
2.2uH 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
Charge Current Foldback at 110°C Die
Temperature
IC Over Temperature Protection at 160°C
FCQFN 4x4-20 Package
Rev 2, 19-May-15
5V/2.4A Power Bank Solution
APPLICATIONS
Power Bank
Mobile Power
Backup Battery Pack
Standalone Battery Charger with USB Output
GENERAL DESCRIPTION
ACT2813/ACT2813C is a space-saving and high-
performance low-profile single-chip solution for
backup battery pack and standalone battery
charger. ACT2813/ACT2813C integrates all the
functions that a backup battery pack needs,
including switching charger, boost converter and
LED indication.
ACT2813/ACT2813C operates at 1.1MHz for
switching charger and 0.55MHz for boost converter
allowing tiny external inductor and capacitors.
ACT2813/ACT2813C provides a direct power path
from input to output while providing power to
switching charger. Output has higher priority than
battery charger if the input current limit is reached.
ACT2813/ACT2813C 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.
ACT2813/ACT2813C boost converter steps battery
voltage up to 5V. Boost converter features high
efficiency, constant current regulation, short circuit
protection and over voltage protection.
ACT2813/ACT2813C provides 3.5mA constant
currents to drive 4 LEDs to indicate battery level
and charge status. Battery impedance is
compensated for battery level indication.
Innovative PowerTM
-1-
Boost CC/CV Profile
5.5
VBAT =3.2V
5.0
VBAT =3.7V
4.5
4.0
VBAT =4.1V
3.5
3.0
0
0.4 0.8 1.2 1.6 2.0 2.4 2.8
Output Current (A)
www.active-semi.com
Copyright © 2015 Active-Semi, Inc.

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