MAX8903A Maxim Integrated Products, MAX8903A Datasheet - Page 6

• Manufacturer Part Number: MAX8903A
• Description: 2A 1-Cell Li+ DC-DC Charger for USB* and Adapter Power
• Manufacturer: Maxim Integrated Products

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2A 1-Cell Li+ DC-DC Charger for USB*
and Adapter Power
(T
6
A
1.015
1.010
1.005
1.000
0.995
0.990
0.985
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
= +25°C, unless otherwise noted.)
90
80
70
60
50
40
30
20
10
_______________________________________________________________________________________
0
0
-40
-40
0
V
USB
NORMALIZED CHARGE CURRENT
BATTERY LEAKAGE CURRENT
vs. AMBIENT TEMPERATURE
vs. AMBIENT TEMPERATURE
1
CHARGER
ENABLED
= 5V, V
USB QUIESCENT CURRENT
-15
-15
vs. USB VOLTAGE
2
BATT
TEMPERATURE (°C)
TEMPERATURE (°C)
USB VOLTAGE (V)
10
10
= 4V
3
4
35
35
CHARGER
DISABLED
5
60
60
6
85
85
7
4.205
4.200
4.195
4.190
4.185
4.180
140
120
100
500
450
400
350
300
250
200
150
100
50
Typical Operating Characteristics (continued)
80
60
40
20
0
0
-40
0
0
CHARGER ENABLED
I
BAT
BATTERY REGULATION VOLTAGE
V
vs. BATTERY VOLTAGE—USB
SET TO 1.5A
V
vs. AMBIENT TEMPERATURE
IUSB
1
IUSB
USB QUIESCENT CURRENT
-15
1
= V
= 0V
CHARGE CURRENT
vs. USB VOLTAGE
2
BATTERY VOLTAGE (V)
USB
TEMPERATURE (°C)
USB VOLTAGE (V)
10
2
3
4
35
3
USB SUSPEND
5
60
4
6
85
7
5
1000
900
800
700
600
500
400
300
200
100
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
80
70
60
50
40
30
20
10
0
0
0
0
0
0
CHARGER ENABLED
I
I
BAT
DC
vs. BATTERY VOLTAGE—DC MODE
V
SYS VOLTAGE vs. USB VOLTAGE
SET TO 1A
USB
SET TO 1.5A
BATTERY LEAKAGE CURRENT
1
1
FALLING
1
vs. BATTERY VOLTAGE
CHARGE CURRENT
BATTERY VOLTAGE (V)
BATTERY VOLTAGE (V)
2
USB VOLTAGE (V)
2
2
3
3
USB UNCONNECTED
4
3
4
V
USB
R
5
SYS
RISING
4
= 1MΩ
5
6
7
6
5