SC802 Datasheet, PDF (13/16 Pages) Semtech Corporation – Fully Integrated Lithium-Ion Battery Charger System with Timer

SC802/SC802A
POWER MANAGEMENT
P_TyR_pE_icL_aIM_{l C}IN_hA_aR_raY_cteristics
Output Current -vs- Rprgm
2
1.5
1
0.5
0
Resistance (Kohm )
Fast Charge
Drop-out Voltage -vs- Output Current
700
600
500
400
300
200
100
0
Output Current (m A)
V dropout
SC802 (non-A) Output Current -vs- Rterm
250
200
150
100
50
0
0.8 1.5 2.5 3.5 4.5 6 8.5 10 11.8 14
Resistance (Kohm )
SC802 Pre-Charge
SC802 Termination
Time-Out -vs Rtim e
8
6
4
2
0
10
20
40
60
80
Resistance (Kohm )
Pre-Charge Timeout
Fast Charge Timeout
Battery Charge Profile
0.6
4.4
4.2
0.5
4
0.4
3.8
0.3
3.6
0.2
3.4
3.2
0.1
3
0
© 2005 Semtech Corp.
V CHARGE
TIME
V CHRGB
I CHARGE
13
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