LB11970RV 데이터 시트보기 (PDF) - ON Semiconductor

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LB11970RV

For Fan Motor Single-phase Full-wave Driver

ON Semiconductor 

Equivalent Circuit Diagram

LB11970RV

Thermal shat down

VCC

VM

6VREG

Constant voltage

RD

RMI

VTH

CPWM

P-IN

Current control

circuit

Delay circuit

1.25V

HB

Controller

HALL IN+

IN-

Hysteresis

AMP

Charge/discharge

circuit

Delay circuit

Oscillation

SGND

CT P-IN RMI VTH

WH WL CPWM

H: Rotation mode

L: Regeneration mode

Comparator

PGND

OUT

M

OUT

Truth Table

VTH

PIN

IN-

IN+

CT

OUT1

OUT2

RD

L

L

H

L

H

L

(OPEN)

L

L

H

L

H

L

L

H

L

OFF

L

H

L

L

L

H

L

OFF

-

H

H

L

OFF

L

L

-

H

L

H

L

OFF

-

-

H

L

H

OFF

L

-

-

L

H

H

L

OFF

VTH, P-IN = L means VTH, P-IN < CPWM VTH, P-IN = H means VTH, P-IN > CPWM

OFF

Mode

Running - drive

Running - regeneration

Output regeneration mode

with external signal

Lock protection

No.A2095-4/7

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