FD178C datasheet(5/10 Pages) SITI

Part #	FD178C

Description	Single Coil Brushless DC Motor Drivers with Soft-Switching and PWM control ( 2.0 to 6.5 Volts )

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Manufacturer	SITI [Silicon Touch Technology Inc.]

Direct Link	http://www.siti.com.tw

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5 / 10 page

Single Coil Brushless DC Motor Drivers with Soft-Switching and PWM control( 2.0 to 6.5 Volts )

Version

：A.005

Page

：4

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FD178/FD178B/FD178C

Truth Table

PWM

Hall input

O1

O2

L

X

L

H

HP > HN

H

L

H

HP < HN

L

H

Hall Signal

In order to let FD178 normal work, two output signals of the Hall must satisfy the

following two conditions：

(a) Hall average output DC voltage, VDC>400mV

(b) Hall amplitude of waveform voltage, VAmplitude>20mV

VIH

VIL

VPWM

O1, O2

VDD

HP or HN

VDC

VAmplitude

＋

－

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FD178C Datasheet(PDF) 5 Page - Silicon Touch Technology Inc.

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