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

Equivalent circuit

VCC

19

IN1+

Hall inputs

20

21

IN1–

High is defined as IN+ > IN–, and low as the opposite.

IN2+

An amplitude of 100 mV p-p (differential) or more is

200 Ω

20 22 24

22

IN2–

desirable in the Hall signals. Connect capacitors between

23

IN3+

the IN+ and IN– pins if noise on the Hall signals causes

24

IN3–

problems.

200 Ω

19 21 23

VCC

Output current detection

Connect a resistor between this pin and ground.

25

RF

The output limitation maximum current, IOUT, is set to be

0.52/Rf by this resistor.

200 Ω

25

26

28

30

UL

VL

WL

This IC implements duty control using output signal PWM.

These are open collector sink outputs.

VCC

26 28 30

27

UH

29

VH

Outputs (Fixed current source outputs)

31

WH

VCC

Power-supply voltage

32

VCC

Connect a capacitor between this pin and ground for power

supply stabilization.

2 kΩ

27 29 31

Continued on next page.

No. 6067-15/17

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