LB1868M(2000) 데이터 시트보기 (PDF) - SANYO -> Panasonic

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LB1868M
(Rev.:2000)

Monolithic Digital IC Two-Phase Brushless Fan Motor Driver

SANYO -> Panasonic 

LB1868M

Pin Description

Pin name

Function

IN–

Hall input + pin Hysteresis amplifier

IN+

Hall input – pin Hysteresis amplifier

CT

Lockup protection time setting capacitor pin (0.47 to 4.7 µF)

Z1

External Zener diode pin (external Zener diode to be connected between power supply and Z1)

Z2

Kickback absorption voltage alteration pin (shorted to Z1: 12V operation)

OUT1

Output 1 pin

OUT2

Output 2 pin

VIN

Regulated power supply input pin (limiting resistor to be inserted between power supply and VIN)

GND

GND pin

RD

Lockup detection pin (latch type)

FG

Rotation frequency detector pin

ST

Start/stop pin

BC

Output transistor common base pin

Pin Assignment

IN– 1

IN+ 2

CT 3

ST 4

BC 5

OUT1 6

GND 7

14 VIN

13 RD

12 FG

LB1868M 11 Z2

10 Z1

9 OUT2

8 NC

Top view

Sample Application Circuits

(1) 12V supply voltage

Vcc

12V 330 Ω

2 kΩ

H

14

13

12

11

VIN RD FG Z2

10

9

8

Z1 OUT2

LB1868M

IN– IN+ CT ST BC OUT1 GND

1

2

3

4

5

6

7

0.47 µF

No. 6203-4/5

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