LV11961HA-AH 데이터 시트보기 (PDF) - ON Semiconductor

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LV11961HA-AH

FAN Motor Driver, Single-phase

ON Semiconductor 

LV11961HA

VCC

REG

CPWM

VTH

SFS

FG

1

2

3…

…89

OUT

Controlled PWM by SFS

Fig.2

Controlled PWM by VTH

- PWM duty control

Duty of PWM output is determined by

comparison of CPWM oscillation and DC

level which is input to VTH pin.

PWM output is in the mode of ...

Driving ( under the condition of CPWM >

VTH )

Regenerating ( under the condition of

CPWM < VTH )

VTH

RMI

CPWM

OUT

The minimum duty of PWM output is

determined by comparison of CPWM

oscillation and DC level which is input to RMI

pin.

High duty of PWM output is determined by ...

VTH level ( under the condition of RMI >

VTH )

RMI level ( under the condition of RMI <

VTH )

That is, high duty of PWM output decreases

only to the one which is determined by RMI

level.

2.15V(typ)

(=VREG x 69%)

0.62V(typ)

(=VREG x 20%)

Duty by RMI input

Controlled duty by VTH input

Fig.3

Full duty

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