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SM6781BV Datasheet(PDF) 9 Page - Nippon Precision Circuits Inc

Part # SM6781BV
Description  Ni-MH/Ni-Cd Battery Charger IC
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Manufacturer  NPC [Nippon Precision Circuits Inc]
Direct Link  http://www.npc.co.jp/en
Logo NPC - Nippon Precision Circuits Inc

SM6781BV Datasheet(HTML) 9 Page - Nippon Precision Circuits Inc

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SM6781BV
NIPPON PRECISION CIRCUITS—9
TYPICAL APPLICATION CIRCUIT
Note that the above circuit is an example circuit to demonstrate the connections for device functions. Battery
charger operation is not guaranteed.
NC
BATT
CHGN
VSS
LEDN
INH
VDD
TIME
VDD 5V
5
2
1
4
8
7
6
3
R6
33k
Ω
R7
100k
Ω
Q3
2SC945
IN
VSS
OUT
78L05
5V
VBEQ2
Q2
2SD525
R2
4/5W
ICHG
Q1
2SC945
R1
5.1k
Ω
R9
200k
Ω
R10
200k
Ω
SM6781BV
R5
1.8k
Ω
R3
100k
Ω
R4
100k
Ω
SW1
VBB 12V
ICHG =
5
− VBEQ2
R2
=
5
− 0.65
4
= N
− 1
R9
R10
N= Number of cells
CPU
or
Temperature switch
(SM6611)


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