SLA707XM datasheet(13/20 Pages) SANKEN

No de pièce	SLA707XM

Description	2-Phase Unipolar Stepper Motor Driver

PDF	20 Pages

Scroll/Zoom	100%

Fabricant	SANKEN [Sanken electric]

Site Internet	http://www.sanken-ele.co.jp/en

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13 / 20 page

2-Phase Unipolar Stepper Motor Driver

SLA707xM Series

February, 2006

Sanken Electric Co.,Ltd.

I03-004EA-060227

Example application circuit

SLA7077MR

マイコン

等

VBB

OutA

OutB

VDD

Clock

Sync

CW/CCW

Ref/Sleep1

SenseB

SenseA

Gnd

Sleep

＋

～

Vs=10V

44V

～

Vcc=3.0V

5.5V

ﾛｼﾞｯｸGnd

ﾊﾟﾜｰGnd

1点Gnd

Reset

N.C.

Reference constant

R1 = 10kΩ

CA = 100µF/50V

R2 = 5.1kΩ(VR)

CB = 10µF/10V

R3 = 10kΩ

C1 = 0.1µF

• Take precautions to avoid noise on the VDD line:

Switching noise from PCB traces, where high current flows, to the VDD line should be minimized

because the noise level more than 0.5V on the VDD line may cause malfunctioning operation.

The tip for avoiding such problem is to separate the logic GND (S-GND) and the power GND (P-GND) on

the PCB, and then connect them together at IC GND pin (pin 12).

Logic Ground

Power Ground

Single Point

Ground

13/20

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