8958 데이터 시트보기 (PDF) - Allegro MicroSystems

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8958

VOICE COIL MOTOR DRIVER

Allegro MicroSystems 

8958

VOICE COIL

MOTOR DRIVER

CURRENT SENSING

500 pF

330 kΩ

10 kΩ

R FA

+

VS

–

IN A–

–

A

+

IN A+

OUT A

I LOAD

SENSE IN+

10 kΩ

RSENSE

OUT B

SENSE IN–

IN B–

–

B

+

IN B+

RFB

4 kΩ

4 kΩ

8 kΩ

+

8 kΩ

SENSE OUT

PARKING FUNCTION

Dwg. EP-034

PARK

R1

VOLTAGE

–

A

+

R2

1.5 V

OUT A

I PARK

RSENSE

OUT B

OPTIONAL

PARK CURRENT

LIMIT

PARK

DRIVE

–

B

+

IN B–

IN B+

PARK

PWR OK

(ACTIVE HIGH)

VOUT A =

1.5 (R1 + R2)

R2

UV1

–

+

1.5 V

UV2

–

+

+

3V

–

V CC

Dwg. EP-039

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036 (508) 853-5000

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