LTC1732-4/LTC1732-4.2
TYPICAL PERFOR A CE CHARACTERISTICS
Battery Charge Current vs
Temperature
540 RPROG =19.6kΩ
530
RSEN = 0.2Ω
VBAT = 3V
520 VCC = 6V
510
500
490
480
470
460
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1732 G07
Trickle Charge Threshold Voltage
vs VCC
2.480 RPROG =19.6kΩ
2.475 TA = 25°C
2.470
2.465
2.460
2.455
2.450
2.445
2.440
4
6
8
10
12
VCC (V)
1732 G08
Program Pin Voltage vs VCC
2.480 RPROG =19.6kΩ
2.475
TA = 25°C
VBAT = 3V
2.470
2.465
2.460
2.455
2.450
2.445
2.440
4
6
8
10
12
VCC (V)
1732 G09
Battery Charge Current vs VCC
520 RPROG =19.6kΩ
515
RSEN = 0.2Ω
VBAT = 3V
510 TA = 25°C
505
500
495
490
485
480
4
6
8
10
12
VCC (V)
1732 G10
Recharge Threshold Voltage vs
Temperature
4.1
VCC = 6V
LTC1732-4.2
4.0
3.9
3.8
LTC1732-4
3.7
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1732 G11
4