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ACT2801C Datasheet Preview

ACT2801C Datasheet

5V/1.5A Backup Battery Manager

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ACT2801/ACT2801B/ACT2801C
Rev 9, 14-Mar-17
5V/1.5A Backup Battery Pack Manager
FEATURES
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
<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
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
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
Charge Current Foldback at 110°C Die
Temperature
IC Over Temperature Protection at 160°C
QFN4x4-24 Package
APPLICATIONS
Backup Battery Pack
Power Bank
Mobile Power
Standalone Battery Charger with USB Output
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.
ACT2801/ACT2801B/ACT2801C operates at
1.1MHz for switching charger and 0.55MHz for
boost converter allowing tiny external inductor and
capacitors.
ACT2801/ACT2801B/ACT2801C
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.
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.
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.
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.
Vbat
Vin
R7
2.7Ω
C1
4.7uF
10V
R5 R6
100k 60k
LED1
VIN
LED2
LED3 LED4 BAT
VOUT
RIMC
TH
BLVS
PB
PB
ACT2801
SW
CSP
PGND
CSN
AGND HZ BTV ILIM IOST ICST
R1 R2 R3 R4
25k 1.5k 97.6k 39k
L1 2.2uH
Rcs
50mΩ
C2
22uF
10V
Vbat
NTC
Vout
C3
22µF
10V
Innovative PowerTM
GND
-1-
Boost CC/CV Curve
5.5
VBAT =3.7V
5.0
VBAT =3.2V
4.5
4.0
VBAT =4.1V
3.5
3.0
0
200 400 600 800 1000 1200 1400
Output Current (mA)
www.active-semi.com
Copyright © 2015-2017 Active-Semi, Inc.




Active-Semi

ACT2801C Datasheet Preview

ACT2801C Datasheet

5V/1.5A Backup Battery Manager

No Preview Available !

ACT2801/ACT2801B/ACT2801C
Rev 9, 14-Mar-17
ORDERING INFORMATION
PART NUMBER
OUTPUT
FLASHLIGHT
PB TURN
OFF BOOST
LEDS AL-
WAYS ON IN
BOOST
LATCH OFF
AT BOOST
UVLO
BOOST
LIGHT LOAD
OFF TIME
PACKAGE
ACT2801QL-T1028 5V/1.5A
No
Yes
No Yes 16s QFN44-24
ACT2801BQL-T1028 5V/1.5A
Yes
No
Yes Yes 16s QFN44-24
ACT2801CQL-T1028 5V/1.5A
Yes
No
No Yes 16s QFN44-24
PIN CONFIGURATION
TOP VIEW
24 23 22 21 20 19
HZ 1
PB 2
AGND 3
nPG 4
ILIM 5
VIN 6
18 LED1
17 BTV
16 ICST
15 IOST
14 CSN
EP 13 CSP
7 8 9 10 11 12
QFN44-24
Innovative PowerTM
- 2 - www.active-semi.com
Copyright © 2015-2017 Active-Semi, Inc.


Part Number ACT2801C
Description 5V/1.5A Backup Battery Manager
Maker Active-Semi
PDF Download

ACT2801C Datasheet PDF





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