LB1978 - Three-Phase Half-Wave Sensorless Motor Driver

Sanyo

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Datasheet Details

Part number	LB1978
Manufacturer	Sanyo
File Size	78.36 KB
Description	Three-Phase Half-Wave Sensorless Motor Driver
Datasheet	LB1978_SanyoSemiconDevice.pdf

LB1978 Product details

Description

Pin number 1 Pin name FC Equivalent circuit Vcc Pin function Oscillator and ripple suppression pin.The higher the capacitance connected to FG, the more effectively will ripple components be suppressed.1 PGND 2 OSC Vcc Startup pulse cycle and drive switching cycle setting pin.Increased capacitance will result in higher startup pulse cycle and drive switching cycle.2 SGND 3 COM Vcc 3 10kΩ 120µA PGND 4 IRF Vcc Startup waveform detector offset setting pin.RCOM = 1 kΩ results in appro

Features

Three-phase sensorless motor driver.
Built-in speed control.
Built-in reference voltage and forward/reverse switching pin.
Soft switching.
Built-in short brake drive pin Package Dimensions unit: mm 3191-SSOP30 [LB1978V] 30 16 5.6 1.0 1 15 0.15 9.95 0.22 0.65 0.43 0.1 1.6max SANYO : SSOP30 Specifications Absolute Maximum Ratings at Ta = 25˚C Parameter Maximum supply voltage Output transistor withstand voltage Maximum output current Allowable pow.

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Published: Apr 25, 2005 |