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ACT8931A Datasheet(PDF) 24 Page - Active-Semi, Inc

Part # ACT8931A
Description  Advanced PMU for Rockchip RK2928/RK2926 Processors
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

ACT8931A Datasheet(HTML) 24 Page - Active-Semi, Inc

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ACT8931A
Rev 3, 29-Nov-12
Copyright © 2012 Active-Semi, Inc.
Innovative Power
TM
ActivePMU
TM and ActivePathTM are trademarks of Active-Semi.
I
2CTM is a trademark of NXP.
- 24 -
www.active-semi.com
(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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