LB1846 查看數據表（PDF） - SANYO -> Panasonic

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LB1846

Low-Voltage/Low Saturation Voltage Type Bidirectional Motor Driver

SANYO -> Panasonic 

LB1846M, 1848M

SOF Pin (“Soft Off” Function) Operation [LB1848M only]

The soft off function reduces power supply line noise due to the kickback current generated when the stepping motor

drive mode is switched from drive to standby. The “soft off” function provided by this IC operates when a capacitor

(0.001 to 0.01 µF) is connected between the SOF pin and ground. (Leave the SOF pin open to disable the soft off

function.)

The waveforms for each pin are shown below.

Timing Chart for Stepping Motor 2-Phase Excitation

No. 5339-5/6

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