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LB1978 Datasheet(PDF) 6 Page - Sanyo Semicon Device

Part # LB1978
Description  Three-Phase Half-Wave Sensorless Motor Driver for Headphone Stereos
PDF  9 Pages
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Manufacturer  SANYO [Sanyo Semicon Device]
Direct Link  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

LB1978 Datasheet(HTML) 6 Page - Sanyo Semicon Device

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LB1978V
No. 6186-6/9
Pin number
6
7
8
9
10
Continued from preceding page
Pin name
PW
PV
IV
VI
BRI
Equivalent circuit
Pin function
CI pin waveform and reference voltage
comparator output pin.
Current buffer input/output pin.
Current-to-voltage converter comparator
input pin.
Voltage-to-current converter input pin.
Speed increases when VI pin voltage is
higher than reference voltage and
decreases when VI pin voltage is lower
than reference voltage.
Brake bias pin.
When S/S pin is Low and BR1 pin is 0.9V
or higher, brake drive pin BR2 goes ON.
Continued on next page
Vcc
PGND
6
1k
Ω
Vcc
SGND
7
1k
Ω
Vcc
SGND
8
Vcc
SGND
9
1k
Ω
Vcc
SGND
10



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