LB1868

No.6202-3/5

Pin Assignment

1

IN−

2

IN+

3

CT

4

5

OUT1

6

7

GND

10

9

VIN

RD

Z2

Z1

OUT2

8

Top view

Pin Function

Pin No.

Pin name

Function

1

IN−

Hall input + pin. Hysteresis amplifier

2

IN+

Hall input

− pin. Hysteresis amplifier

3

CT

Lockup protection time setting capacitor pin (0.47 to 4.7

μF).

4

OUT1

Output 1 pin.

6

OUT2

Output 2 pin.

5

GND

GND pin.

7

Z1

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

8

Z2

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

9

RD

Lockup detection pin (latch type).

10

VIN

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

Truth Table

IN+

IN−

CT

OUT1

OUT2

RD

H

L

L

H

L

L

L

H

L

L

H

L

H

L

H

H

H

H

L

H

H

H

H

H

* RD is a latch type output