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ACT8941A Datasheet(PDF) 24 Page - Active-Semi, Inc

Part # ACT8941A
Description  Advanced PMU for Rockchip RK2906/RK2918 Processor
PDF  42 Pages
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Manufacturer  ACTIVE-SEMI [Active-Semi, Inc]
Direct Link  http://www.active-semi.com
Logo ACTIVE-SEMI - Active-Semi, Inc

ACT8941A Datasheet(HTML) 24 Page - Active-Semi, Inc

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ACT8941A
Rev 0, 12-Mar-13
- 24 -
www.active-semi.com
ActivePMU
TM and ActivePathTM are trademarks of Active-Semi.
I2CTM is a trademark of NXP.
Copyright © 2013 Active-Semi, Inc.
Innovative PowerTM
Active-Semi Proprietary―For Authorized Recipients and Customers
(TA = 25°C, unless otherwise specified.)
ACIN/CHGLEV = 01
VSYS Voltage vs. VSYS Current
6.0
5.0
4.0
3.0
2.0
1.0
0
VSYS Current (mA)
0
500
1000
1500
2000
2500
Battery Voltage (V)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
Battery Voltage (V)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
VSYS Voltage vs. CHGIN Voltage
CHGIN Voltage (V)
0
2
4
6
8
10
5.2
5.0
4.8
4.6
4.4
4.2
4.0
VSYS = 4.6V
ACIN/CHGLEV = 11
CH1: IVSYS, 1.00A/div
CH2: IBAT, 1.00A/div
CH3: VBAT, 1.00V/div
CH4: VVSYS, 1V/div
TIME: 200ms/div
DCCC and Battery Supplement Modes
CH3
CH4
CH1
CH2
VBAT = 3.5V
VVSYS = 4.6V
IVSYS = 0-1.8A
ICHARGE = 1000mA
VCHGIN = 5.1V-3A
TYPICAL PERFORMANCE CHARACTERISTICS CONT’D
Charger Current vs. Battery Voltage
100
90
80
70
60
50
40
30
20
10
0
Charger Current vs. Battery Voltage
500
450
400
350
300
250
200
150
100
50
0
VCHGIN = 5V
ACIN = 0
CHGLEV = 1
450mA USB
VCHGIN = 5V
ACIN = 0
CHGLEV = 0
90mA USB
Charger Current vs. Battery Voltage
1200
1000
800
600
400
200
0
Battery Voltage (V)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
RISET = 2.4kΩ
VCHGIN = 5V
ACIN/CHGLEV = 11
VBAT Falling
VBAT Rising
VBAT Falling
VBAT Rising
VBAT Falling
VBAT Rising



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