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ACT2802QL-T Datasheet(PDF) 6 Page - Active-Semi, Inc

Part # ACT2802QL-T
Description  5V/2.5A Backup Battery Pack Manager
PDF  21 Pages
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Manufacturer  ACTIVE-SEMI [Active-Semi, Inc]
Direct Link  http://www.active-semi.com
Logo ACTIVE-SEMI - Active-Semi, Inc

ACT2802QL-T Datasheet(HTML) 6 Page - Active-Semi, Inc

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ACT2802
Rev 0, 21-Jan-14
Innovative PowerTM
- 6 -
www.active-semi.com
Copyright © 2013 Active-Semi, Inc.
Active-Semi Confidential―Do Not Copy or Distribute
ActiveSwitcher
TM is a trademark of Active-Semi.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
Precondition Voltage Threshold
VBAT rising, Rbtv=0
2.8
V
Precondition Voltage Threshold Hysteresis
130
mV
Low VBAT Charge Current
VBAT=1V, RICST=43.2kΩ
200
mA
EOC Current Threshold
VBAT=4.2V, percent of the fast
charge current
13
%
Charge Restart Voltage Threshold
200
mV
TH Upper Temperature Voltage Threshold
Cold detect NTC thermistor
1.45
1.5
1.55
V
TH Lower Temperature Voltage Threshold
Hot detect NTC thermistor
0.28
0.3
0.32
V
TH Hysteresis
50
mV
TH Internal Pull-up Current
60
µA
Charge Current Foldback
Charge Current Reduction Threshold1 of Vout1
Starting foldback point
4.63
4.7
4.77
V
Charge Current Reduction Threshold2 of Vout1
Stop foldback point, RCS=25mΩ,
RICST=43.2kΩ
4.57
V
Boost Mode
Input Voltage Operation Range
3.0
4.5
V
Switching Frequency
ACT2802QL-T
-15%
0.55
+15% MHz
Input Voltage UVLO
VBAT rising
3.3
V
Input Voltage UVLO Hysteresis
VBAT falling
400
mV
Output Voltage
Ta=25℃
4.97
5.05
5.10
V
Output Voltage Accuracy
All conditions
-3
VOUT
2
%
80mA-1A-80mA, 0.1A/us
4.75
5.25
V
1A-2.0A-1A, 0.1A/us
4.7
5.25
V
Output Over Voltage Protection
VOUT rising
5.7
V
Output Over Voltage Protection Hysteresis
VOUT falling
300
mV
Output Current Regulation Range
Rcs=25mΩ, RIOST=37.4kΩ—93.7kΩ
1.0
2.5
A
Output Current Limit
Rcs=25mΩ, RIOST=91kΩ
2.4
A
Minimum On-Time
100
ns
Low Side Switch Peak Current Limit
VBAT=3.6V, VOUT=5V
4.9
6.9
A
Soft-Startup Time
400
µs
Output Voltage Transient Response
ELECTRICAL CHARACTERISTICS
(VIN = 5V, TA = 25°C, unless otherwise specified.)



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