LB1976(2003) 데이터 시트보기 (PDF) - SANYO -> Panasonic

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LB1976
(Rev.:2003)

DC Fan Motor Driver

SANYO -> Panasonic 

LB1976

Duty – VCTL characteristics

100

80

60

40

20

0

VCTL1

VCTL2

Control voltage, VCTL — V

Block Diagram and Peripheral Circuit

VREG

S/S F/R

FG1 FG2

VCC

VCC

Reg

+

Hys.Amp

+

IN1 –

+

IN2 –

Logic

LVSD

TSD

+

VM

VM

OUT1

OUT2

OUT3

VCTL

+

+

IN3 –

31 kΩ

VCTL 40 kΩ VCTL Amp

–

+

2.35 V

PWM

OSC

VCREF VCOUT

OSC

Current

limiter

RF

Rf

0.5 V

GND1 GND2 GND3

A11965

No. 6088-5/12

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