KA2821D 데이터 시트보기 (PDF) - Fairchild Semiconductor

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KA2821D

Stepping Motor Driver

Fairchild Semiconductor 

Application Information

1. MOTOR CONTROL LOGIC

Mode selection-truth table

Input

CE

DIRY

L

L

L

H

H

L

H

H

Notes:

DIRY: DIRA or DIRB (Direction input)

YOUT: AOUT or BOUT (Non-inverting output)

YOUT: AOUT or BOUT (Inverting output)

Y: Indicate each channel (A and B)

X: High impedance

2. MAXIMUM CURRENT DRIVE CAPACITY

• Peak seeking output current: 0.5A

• Continuous seeking output current: 0.33A

• Holding output current: 0.2A

YOUT

L

H

X

X

Output

YOUT

H

L

X

X

KA2821D

Operating Mode

Seeking Mode

Open Mode

6

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