SC810_1 Datasheet, PDF (7/20 Pages) Semtech Corporation – Single Input/Single Mode Single-cell Li-ion Charger

Typical Characteristics (continued)
Charging Cycle Battery Voltage and Current
850mAhr battery, R_IPRGM = 2.94kΩ, V_VIN = 5.0V, T_A = 25^οC
7
700
6
600
5
500
V_BAT
4
400
3
300
2
I_BAT
200
1
100
0
0
0 0.25 0.5 0.75 1 1.25 1.5 1.75 2 2.25
Time (hrs)
CC-to-CV Battery Voltage and Current
850mAhr battery, R_IPRGM = 2.94kΩ, V_VIN = 5.0V, T_A = 25^οC
4.21
710
I_BAT
4.2
690
4.19
670
4.18
650
V_BAT
4.17
630
4.16
610
44
44.5
45
45.5
46
46.5
47
47.5
48
Time (min)
SC810
Pre-Charging Battery Voltage and Current
850mAhr battery, R_IPRGM = 2.94kΩ, V_VIN = 5.0V, T_A = 25^οC
4
800
3.75
700
I_BAT
3.5
600
3.25
500
3
400
V_BAT
2.75
300
2.5
200
2.25
100
2
0
0
2
4
6
8 10 12 14 16 18 20
Time (s)
Re-Charge Cycle Battery Voltage and Current
850mAhr battery, R_IPRGM = 2.94kΩ, V_VIN = 5.0V, Load = 10mA
4.5
450
4
400
V_BAT
3.5
350
3
300
2.5
250
2
200
1.5
150
I_BAT
1
100
0.5
50
Discharge hours 2 - 6 omitted.
0
0.0
0.5
1.0
1.5
0
2/6
6.5
7.0
7.5
Time (hrs)
7