LB1821 datasheet(12/16 Pages) SANYO

12 / 16 page

No. 5686-12/16

LB1821M

Continued from preceding page.

Pin No.

Functions

Equivalent circuit

Brake control (short braking operation)

Low: 0 to 1.5 V

High: 4.0 V to VCC

An open state functions as a high-level input.

Low for start, high or open for brake mode operation.

The hysteresis is about 0.45 V.

F/R

Forward/reverse control

Low: 0 to 1.5 V

High: 4.0 V to VCC

An open state functions as a high-level input.

Low for forward, high or open for reverse rotation.

The hysteresis is about 0.45 V.

CLK

External clock signal input

Low: 0 to 1.5 V

High: 4.0 V to VCC

An open state functions as a high-level input.

The hysteresis is about 0.45 V.

f = 10 kHz, maximum

S/S

Start/stop control

Low: 0 to 1.5 V

High: 4.0 V to VREG

An open state functions as a high-level input.

Low for start, high or open for stop mode operation.

The hysteresis is about 0.45 V.

Speed discriminator count switching

Low: 0 to 1.5 V

High: 4.0 V to VCC

An open state functions as a high-level input.

The hysteresis is about 0.45 V.

Continued on next page.

LB1821 Datasheet(PDF) 12 Page - Sanyo Semicon Device