SI9731 Datasheet, PDF (6/10 Pages) Vishay Siliconix – UP Controlled Battery Charger For 1-Cell Li-ion or 1-Cell to 3-Cell NiCd/NiMH Batteries

Si9731
Vishay Siliconix
TYPICAL CHARACTERISTICS 25 °C unless noted
4.22
4.1 TAP Open
4.20
4.18
4.16
4.14
4.12
4.10
4.1 TAP to V_BAT
4.08
3
6
9
12
V_CHARGER (V)
V_BAT (CV Mode) vs. V_CHARGER
2.75
2.70
2.65
2.60
2.55
2.50
2.45
- 40
- 15
10
35
60
85
Temperature (°C)
Charger UVLO Rising vs. Temperature
4.22
4.1 TAP Open
4.20
4.18
4.16
4.14
4.12
4.10
4.1 TAP to V_BAT
4.08
4.06
- 40
- 15
10
35
60
85
Temperature (°C)
V_BAT (CV Mode) vs. Temperature
1.0
V_CHARGER = 0 V
V_BAT = 4.2 V
0.8
0.6
0.4
0.2
0.0
- 40 - 20 0
20 40 60 80 100
Temperature (°C)
V_BAT Leakage vs. Temperature
www.vishay.com
6
Document Number: 71321
S-60869-Rev. B, 22-May-06