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ACT8740 Datasheet(PDF) 33 Page - Active-Semi, Inc

No. de pieza ACT8740
Descripción Electrónicos  Six Channel Integrated Power Management IC for Handheld Portable Equipment
PDF  40 Pages
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Fabricante Electrónico  ACTIVE-SEMI [Active-Semi, Inc]
Página de inicio  http://www.active-semi.com
Logo ACTIVE-SEMI - Active-Semi, Inc

ACT8740 Datasheet(HTML) 33 Page - Active-Semi, Inc

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SINGLE-CELL Li+ BATTERY CHARGER (CHGR)
ACT8740
Rev PrB, 25-Feb-08
Innovative Products. Active Solutions.
- 33 -
www.active-semi.com
Copyright © 2008 Active-Semi, Inc.
ActivePMU
TM is a trademark of Active-Semi.
I
2CTM is a trademark of Philips Electronics.
ELECTRICAL CHARACTERISTICS
(VVIN = 5V, VBAT = 3.6V, ISET1[ ] = [0000], TA = 25°C, unless otherwise specified.)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VIN Operating Voltage Range
4.3
6
V
VIN UVLO Threshold
VIN Voltage Rising
3.75
4
4.25
V
VIN UVLO Hysteresis
VIN Voltage Falling
500
mV
On-Resistance
300
500
mΩ
Battery Termination Voltage
TA = 25°C
4.179
4.200
4.221
V
VVIN = 4.5V to 5.5V, TA = 0°C to 85°C
4.158
4.200
4.242
V
Line Regulation
VVIN = 4.5V to 5.5V, IBAT = 10mA
0.2
%/V
Load Regulation
IBAT = 50mA to 500mA
0.001
%/mA
Charge Current
VBAT = 4V, CHGLEV = GA
90
100
mA
VBAT = 4V, CHGLEV = VSYS
400
450
500
mA
Precondition Charge Current
VBAT = 2.7V, CHGLEV = GA or VSYS
30
45
60
mA
Precondition Threshold Voltage
VBAT Voltage Rising
2.75
2.9
3.05
V
Precondition Threshold Hysteresis
VBAT Voltage Falling
150
mV
End-of-Charge Current Threshold
VBAT = 4.2V, CHGLEV = VSYS
20
38
56
mA
End-of-Charge Delay
4
min
Charge Restart Threshold
VSET[ ] - VBAT, VBAT Falling
200
mV
Thermal Regulation Threshold
110
°C
BAT Reverse Leakage Current
VBAT = 4.2V, VIN = GA or BAT
0.4
2
µA
VIN Supply Current
VVIN < UVLO Voltage
50
µA
SLEEP, SUSPEND or TIMEOUT-FAULT
state
200
µA
PRECONDITION, FAST-CHARGE, or
TOP-OFF state
700
µA
Precondition Timeout Period
TIMOSET[ ] = [10]
90
min
CHGLEV Logic High Input Voltage
ICHGLEV ≥ 15µA
1.4
V
CHGLEV Tri-state Current Threshold
-2
2
µA
CHGLEV Logic Low Input Voltage
ICHGLEV ≤ -15µA
0.4
V
Total Timeout Period
TIMOSET[ ] = [10]
4
hr
: Charger is suspended when CHGLEV pin current is within this range



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