MAX8900A View Datasheet(PDF) - Maxim Integrated
Part Name
Description
Manufacturer
MAX8900A
Maxim Integrated
MAX8900A Datasheet PDF : 35 Pages
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MAX8900A/MAX8900B/MAX8900C
1.2A Switch-Mode Li+ Chargers with ±22V Input
Rating and JEITA Battery Temperature Monitoring
Typical Operating Characteristics
(Circuit of Figure 1, VIN = 6V, VBAT = 3.6V, TA = +25NC, unless otherwise noted.)
INPUT SUPPLY CURRENT
vs. INPUT VOLTAGE (DISABLED, VBAT = 0V)
120
VCEN = 3.0V
100
80
60
40
20
0
-20
-30 -20 -10 0 10 20 30
VIN (V)
INPUT SUPPLY CURRENT
vs. INPUT VOLTAGE (CHARGING AT 1.2A)
1.4
MAX8900A
1.2
VCEN = 0V
VBAT = 3.1V
1.0
RSETI = 2.87kI
0.8
0.6
0.4
VIN RISING
0.2
VIN FALLING
0
0
5
10
15
VIN (V)
INPUT SUPPLY CURRENT AND
CHARGE CURRENT vs. INPUT VOLTAGE
1.2
1.0
0.8
0.6
MAX8900A
VCEN = 0V
IBAT
VBAT = 4.0V
IIN
RSETI = 3.01kI
0.4
VIN FALLING
0.2
0
3.5
4.5
5.5
6.5
7.5
VIN (V)
INPUT SUPPLY CURRENT
vs. INPUT VOLTAGE (DISABLED, VBAT = 3.6V)
120
VCEN = 3.0V
100
80
60
40
20
0
-20
-30 -20 -10 0 10 20 30
VIN (V)
INPUT SUPPLY CURRENT
vs. INPUT VOLTAGE (VIN2BAT DETAIL)
1.2
MAX8900A RL = 90mI
1.0
0.8
VCEN = 0V
0.6
VBAT = 4.0V
RSETI = 3.01kI
0.4
VIN RISING
0.2
VIN FALLING
0
3.5
4.5
5.5
6.5
7.5
VIN (V)
BATTERY REGULATION VOLTAGE
vs. AMBIENT TEMPERATURE
1.010
1.008
1.006
1.004
VCEN = 0V
VBAT = UNCONNECTED
VIN = 5.0V
VTHM = VAVL/2
1.002
1.000
0.998
0.996
0.994
0.992
0.990
-40 -15 10
35
60
85
AMBIENT TEMPERATURE (°C)
INPUT SUPPLY CURRENT
vs. INPUT VOLTAGE (PREQUALIFICATION)
120
MAX8900A
100
VCEN = 0V
VBAT = 2.6V
RDNI = 3.83kI
80
60
40
VIN RISING
20
VIN FALLING
0
0
5
10
15
VIN (V)
CHARGE CURRENT
vs. BATTERY VOLTAGE
1.4
RSETI = 2.87kI
1.2
VCEN = 0V
VIN = 6.0V
RSETI = 3.40kI
1.0
MAX8900A/
MAX8900B
0.8
RSETI = 6.81kI
0.6
0.4
RSETI = 34.0kI
0.2 RDNI = 3.83kI
0
0123456
VBAT (V)
BATTERY REGULATION VOLTAGE
vs. INPUT VOLTAGE
1.010
1.008
1.006
MAX8900B
VCEN = 0V
VBAT = UNCONNECTED
1.004
1.002
1.000
0.998
0.996
0.994
0.992
0.990
4
5
6
7
8
9
VIN (V)
8  
Maxim Integrated
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