sm8142b Nippon Precision Circuits Inc, (NPC), sm8142b Datasheet - Page 7

• Manufacturer Part Number: sm8142b
• Description: El Driver
• Manufacturer: Nippon Precision Circuits Inc, (NPC)

I
SM8142BD
Note) Do not operate the SM8142 with the EL sheet NOT connected (no load to OUT1/OUT2) since the IC will be damaged.
1.5V
5.0V
3.0V
3.0V
* : Connect a 1k Ω resistor to protect IC when the size of EL sheet is over 30cm
** : Connect a 20k Ω resistor to protect IC when the supply voltage is over 4.0V.
3.0V
180kΩ
180kΩ
100kΩ
180kΩ
Diode: TOSHIBA 1SS370
Coil: MURATA LQH4N471K04M00
Diode: TOSHIBA 1SS250
Coil: MURATA LQH4N471K04M00
Diode: TOSHIBA 1SS370
Coil: RIVER ELETEC FLC32PC
VSS
OSC
ENA
VDD
VSS
OSC
ENA
VDD
VSS
OSC
ENA
VDD
Diode: TOSHIBA 1SS370
Coil: MURATA LQH4N221K04M00
VSS
OSC
ENA
VDD
OUT2
OUT2
OUT1
OUT1
OUT1
OUT2
CHV
CHV
LDR
LDR
SM8142
CHV
LDR
OUT1
OUT2
LDR
CHV
0.47mH
20kΩ**
1kΩ*
0.47mH
0.47mH
EL sheet
EL sheet
0.22mH
EL sheet
EL sheet
C
0.01µF
C
0.01µF
C
0.01µF
bypass
bypass
bypass
EL sheet size:20cm to 30cm
Current Consumption: 20mA
EL sheet size:30cm to 50cm
Current Consumption: 33mA
C
0.01µF
EL sheet size:5cm to 10cm
Current Consumption: 15mA
bypass
EL sheet size:10cm to 15cm
Current Consumption: 20mA
0.1µF
100V
0.1µF
100V
0.1µF
0.1µF
100V
100V
SEIKO NPC CORPORATION —7
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