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MIC79110 Datasheet(PDF) 5 Page - Micrel Semiconductor

Part # MIC79110
Description  Simple 1.2A Linear Li-Ion Battery Charger
PDF  10 Pages
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Manufacturer  MICREL [Micrel Semiconductor]
Direct Link  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MIC79110 Datasheet(HTML) 5 Page - Micrel Semiconductor

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July 2004
5
M9999-072004
MIC79110
Micrel
40
45
50
55
60
65
70
75
80
-40 -20
0
20
40
60
80 100
TEMPERATURE (ºC)
Ground Current vs.
Temperature
ISET = 1.2A
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
0
0.2 0.4 0.6 0.8
1
1.2 1.4
BATTERY CURRENT (A)
Battery Current
vs. Battery Voltage
R
SET
= 165k
Ω
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
0
1234
5
SUPPLY VOLTAGE (V)
Dropout
Characteristics
I
BAT = 0A
I
BAT = 1.2A
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
0.1
1
10
100
1000
FREQUENCY (kHz)
PSRR
50mA
0mA
250mA
500mA
V
IN
= V
OUT+1V
V
OUT = 4.2V
3.5
3.7
3.9
4.1
4.3
4.5
4.7
4.9
5.1
5.3
5.5
-40 -20
0
20
40
60
80 100
TEMPERATURE (°C)
Ground Current
vs. Temperature
I
BAT
= 0A
0
10
20
30
40
50
60
0
200 400 600 800 1000 1200
BATTERY CURRENT (mA)
Battery Current vs.
Ground Current
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
-40 -20 0
20 40 60 80 100 120
TEMPERATURE (°C)
Battery Voltage
vs. Temperature
I
BAT=0A
VOUT = 4.2V
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
0
1234
5
SUPPLY VOLTAGE (V)
Ground Current
vs. Supply Voltage
I
BAT=0A
0
10
20
30
40
50
60
0
1234
5
SUPPLY VOLTAGE (V)
Ground Current
vs. Supply Voltage
I
BAT=1.2A
0
100
200
300
400
500
600
700
800
0
0.2
0.4
0.6
0.8
1
1.2
BATTERY CURRENT (A)
Dropout Voltage
V
OUT=4.2V
0
5
10
15
20
25
30
35
-40 -20 0
20 40 60 80 100 120
TEMPERATURE (°C)
Dropout Voltage
vs. Temperature
I
BAT=0A
0.90
0.95
1.00
1.05
1.10
1.15
-40 -20 0
20 40 60 80 100 120
TEMPERATURE (°C)
Shutdown Threshold
vs. Temperature



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