MAX1811(2003) Просмотр технического описания (PDF) - Maxim Integrated
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MAX1811 Datasheet PDF : 8 Pages
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USB-Powered Li+ Charger
ELECTRICAL CHARACTERISTICS
(VIN = 4.5V, TA = -40°C to +85°C, unless otherwise noted.) (Note1)
PARAMETER
Input Supply Voltage
Input Undervoltage Lockout
Input Supply Current
CONDITIONS
IIN rising
Operating, EN = IN, no load
Shutdown, EN = GND
Precondition Threshold
BATT rising, transition from precondition to
charge mode
BATT Regulation Voltage
SELV = GND, IBATT = 0
SELV = IN, IBATT = 0
BATT Leakage Current (Input
Power Removed)
VBATT = 4.2V, IN = GND
BATT Shutdown Current
EN = GND, VBATT = 4.2V
Note 1: Specifications to -40°C are guaranteed by design and not production tested.
MIN TYP MAX UNITS
4.35
6.50
V
3.75
4.05
V
3
mA
6
µA
2.3
2.7
V
4.06
4.14
V
4.16
4.24
10
µA
3
µA
Typical Operating Characteristics
(CHG unconnected, CBATT = 2.2µF, TA = +25°C, unless otherwise noted.)
SUPPLY CURRENT
vs. INPUT VOLTAGE (ENABLED)
1.0
VIN = VEN = VSELV
0.9
0.8
0.7
0.6
VSELI = VIN
0.5
VSELI = 0
0.4
0.3
0.2
0.1
0
01234567
VIN (V)
SUPPLY CURRENT vs. INPUT VOLTAGE
(SHUTDOWN)
4.5
4.0
VIN = VSELV
VEN = 0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
01234567
VIN (V)
500
450
400
350
300
250
200
150
100
50
0
0
CHARGE CURRENT
vs. INPUT VOLTAGE HEADROOM
VSELI = VIN
VSELI = 0
VBATT = 4.1V
VSELV = VIN
0.5 1.0 1.5 2.0 2.5 3.0
VIN - VBATT (V)
_______________________________________________________________________________________ 3
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