MAX1259C Ver la hoja de datos (PDF) - Maxim Integrated
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MAX1259C Datasheet PDF : 8 Pages
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MAX1259
Battery Manager
Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
SWITCH VOLTAGE DROP
vs. LOAD CURRENT
200
VCC MODE
TA = +25°C
150
100
VCCI = +4.5V
SWITCH VOLTAGE DROP
vs. LOAD CURRENT
200
VCC MODE
TA = +75°C
150
VCCI = +4.5V
100
SWITCH VOLTAGE DROP
vs. LOAD CURRENT
200
BATTERY-BACKUP MODE
TA = +25°C
150
VBATT = +2.5V
100
50
0
0
VCCI = +5.0V
50 100 150 200 250
ICCO (mA)
SWITCH VOLTAGE DROP
vs. LOAD CURRENT
200
BATTERY-BACKUP MODE
TA = +75°C
150
VBATT = +2.5V
100
50
VBATT = +3.0V
0
0
5
10
15
ICCO2 (mA)
QUIESCENT SUPPLY CURRENT
vs. POWER SUPPLY
3.5
VBATT = 3.0V, ICCO = 0mA
3.0 TA = +25°C
2.5
2.0
1.5
1.0
0.5
0
0
1
2
3
4
5
6
VCCI (V)
50
VCCI = +5.0V
0
0
50
100 150 200 250
ICCO (mA)
POWER-FAIL TRIP POINT
vs. BATTERY VOLTAGE
5.0
4.8
TA = +25°C
4.6
4.4
4.2
VCCI RISING
4.0
3.8
3.6
VCCI FALLING
3.4
3.2
3.0
2.4 2.6 2.8 3.0 3.2 3.4 3.6 3.8
VBATT (V)
BAT CURRENT
vs. BATTERY VOLTAGE
2.0
VBATT - BAT = 100mV
1.8
1.6
TA = +25°C
1.4
1.2
TA = +75°C
1.0
0.8
2.0
2.5
3.0
3.5
4.0
VBATT (V)
50
0
0
VBATT = +3.0V
5
10
15
ICCO2 (mA)
BATTERY-FAIL TRIP POINT
vs. TEMPERATURE
2.3
VCCI = 5.0V
2.2
2.1
VBATT RISING
2.0
1.9
1.8
VBATT FALLING
1.7
1.6
0 10 20 30 40 50 60 70 80 90 100
TEMPERATURE (°C)
BAT SWITCH DROP
vs. BATTERY VOLTAGE
100
80
IBAT = 1mA
60
40
IBAT = 100µA
20
0
2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6 3.8 4.0
VBATT (V)
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