LB1929 データシートの表示（PDF） - ON Semiconductor

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LB1929

Monolithic Digital IC For Office Automation Equipment 3-phase Brushless Motor Driver

ON Semiconductor 

LB1929

Continued from preceding page.

Pin No.

Pin name

Pin function

16

FGOUT

FG amplifier output pin.

Equivalent circuit

17

FGIN-

18

FGIN+

FG amplifier input pin.

By connecting a capacitor (approx. 0.1μF)

between FGIN+ and ground, the logic circuitry is

reset.

19

S/S

Start/stop control pin.

Start (Low) : 0V to 1.5V

Stop (High) : 3.5V to VREG

High when open.

Hysteresis width : approx. 0.5V.

20

GND1

22

IN1+

21

IN1-

24

IN2+

23

IN2-

26

IN3+

25

IN3-

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

100mVp-p (differential operation). When Hall

signal noise is a problem, connect a capacitor

between IN+ and IN-.

27

F/R

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.7099-8/11

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