LB1923M Ver la hoja de datos (PDF) - SANYO -> Panasonic

Número de pieza

componentes Descripción

Fabricante

LB1923M

Power Brushless Motor Pre-Driver IC for OA Equipment

SANYO -> Panasonic 

Continued from preceding page.

Pin No.

Pin

LB1923M

Functions

Speed discriminator count switching

Low: 0 to 1.5 V

11

N2

High: 4.0 V to VCC

An open state functions as a high-level input.

The hysteresis is about 0.45 V.

VCC

Equivalent circuit

63 kΩ

200 Ω

11

VCC

12

12

FGSOUT

FG amplifier output (after the Schmitt circuit)

This is an open collector output.

VCC

FG amplifier output

13

FGOUT This pin is connected to the FG Schmitt comparator circuit

internally in the IC.

FG Schmitt comparator

VCC

20 kΩ

14

FGIN–

FG amplifier inputs

An initial reset is applied to the logic circuit block by

FG reset circuit

15

FGIN+ connecting a capacitor (of about 0.1 µF) between the FGIN+

pin and ground.

200 Ω

15

20 kΩ

13

200 Ω

14

16 to 18

38 to 40

GND

Ground connections

These pins are all connected internally to the frame.

Continued on next page.

No. 6067-14/17

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