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ACT2802B Datenblatt(PDF) 6 Page - Active-Semi, Inc

Teilenummer ACT2802B
Bauteilbeschribung  5V/2.5A Backup Battery Pack Manager
PDF  25 Pages
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Hersteller  ACTIVE-SEMI [Active-Semi, Inc]
Direct Link  http://www.active-semi.com
Logo ACTIVE-SEMI - Active-Semi, Inc

ACT2802B Datenblatt(HTML) 6 Page - Active-Semi, Inc

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Rev 7, 15-Jul-16
Innovative PowerTM
- 6 -
www.active-semi.com
Copyright © 2016 Active-Semi, Inc.
ACT2802/ACT2802B/ACT2802C
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
Fast Charge Current
VBAT=3.5V
ICHRG
A
Precondition Charge Current
2.4V≤VBAT≤2.8V, Percent of ICHRG
10
%
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
15
%
Charge Restart Voltage Threshold
200
mV
TH Upper Temperature Voltage Threshold
Cold detect NTC thermistor,
ACT2802QL-T1028
1.5
V
TH Lower Temperature Voltage Threshold
Hot detect NTC thermistor,
ACT2802QL-T1028
0.3
V
TH Hysteresis
ACT2802QL-T1028
50
mV
TH Internal Pull-up Current
ACT2802QL-T1028
60
µA
LED Flash Frequency
LED flash 1s on and 1s off
0.5
Hz
Charge Current Foldback
Charge Current Reduction Threshold1 of Vout1 Starting foldback point
4.59
4.7
4.81
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
-15%
0.55
+15% MHz
Input Voltage UVLO
VBAT rising
3.3
V
Input Voltage UVLO Hysteresis
VBAT falling
400
mV
Output Voltage (VOUT)
Ta=25℃
4.97
5.05
5.10
V
Output Voltage Accuracy
All conditions
-3
VOUT
2
%
Output Voltage Transient Response
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
ELECTRICAL CHARACTERISTICS
(VIN = 5V, TA = 25°C, unless otherwise specified.)



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