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8
bq2000T
BAT+
Q1
FMMT718
D2
ZHCS1000
L1
47UH
C8
1000PF
R9
120 OHMS
Q2
MMBT3904LT1
C6
47UF
D5
MMSD914LT
D3
MMSD914LT
D4
S1A
DC+
R7
1K
D1
RED
R2
2K
C3
10UF
D6
BZT52-C5V1
R1
100K
C4
0.0022UF
VCC
C7
4.7PF
C9
0.33UF
RC
6
LED
3
BAT
4
VSS
2
TS
5
VCC
7
SNS
1
MOD
8
U1
bq2000T
Q3
MMBT3904LT1
R8
220 OHMS
R13
10.5K
R4
210K
C5
10UF
BAT -
THERM
CHEMISTRY
R5
Pn1031a02.eps
200K
R6
221K
R12
100K
R14
23.2K
C1
0.1
R11
6.81K
C10
0.01UF
C2
0.1
R10
1.1K
R3
0.05 OHM
NOTES:
1. For Li-Ion, the CHEMISTRY is left floating.
For NiCd/NiMH, the CHEMISTRY is tied to BAT-
2. DC input voltage: 9–16V
4. L1: 3L Global P/N PKSMD-1005-470K-1A
3. Charge current: 1A
Figure 8. Single-Cell Li-Ion, Three-Cell NiCd/NiMH 1A Charger