LB1928(1999) Ver la hoja de datos (PDF) - SANYO -> Panasonic

Número de pieza

componentes Descripción

Fabricante

LB1928
(Rev.:1999)

Three-Phase Brushless Motor Driver for Office Automation Equipment

SANYO -> Panasonic 

Continued from preceding page

Pin number Pin name

16

FG

OUT

VREG

LB1928

Equivalent circuit

16

Pin function

FG amplifier output pin.

17

FGIN–

18

FGIN+

19

S/S

20

GND1

22

IN1+

21

IN1–

24

IN2+

23

IN2–

26

IN3+

25

IN3–

27

F/R

FG schmitt comparator

VREG

FG reset circuit

300Ω

18

VREG

VREG

300Ω

21 23 25

VREG

A12993

300Ω

17

FG amplifier input pin.

By connecting a capacitor (approx. 0.1 µF)

between FGIN+ and ground, the logic circuitry

is reset.

A12994

2kΩ

19

A12995

Start/stop control pin.

Start (Low): 0V to 1.5V

Stop (High): 3.5V to VREG

High when open.

Hysteresis width: approx. 0.5V.

300Ω

22 24 26

Ground pin (except for output block).

Hall input pins.

High when IN+ > IN–, Low when IN+ < IN–.

Hall signal should have an amplitude of at least

100 mVp–p (differential operation). When Hall

signal noise is a problem, connect a capacitor

between IN+ and IN–.

A12996

2kΩ

27

A12997

Forward/reverse control pin.

Forward (Low): 0V to 1.5V

Reverse (High): 3.5V to VREG

High when open.

Hysteresis width: approx. 0.5V.

No. 6198-8/11

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