No.8095-5/12

LB11693

Pin Functions

Pin No.

Symbol

Function

Equivalent circuit

28

1

2

OUT1

OUT2

OUT3

Motor drive outputs

3

GND2

Motor drive output system ground

4

VD

Low side output transistor drive current supply

6

VM

Motor drive output power supply and output current

detection

The output current will be limited to the current value set

by the equation IOUT = VRF/Rf.

1

2

28

300

Ω

VM

3

6

VCC

VD

4

5

Power supply for systems other than the motor drive

output

7

VREG

5 V regulator output

Insert a capacitor (about 0.1 µF) between this pin and

ground for stabilization.

7

VCC

8

LVS

Undervoltage protection voltage detection

To detect VREG, connect this pin to VREG.

zener diode in series.

VREG

9.5 k

Ω

52 k

Ω

8

9

FGFIL

FG filter connection

This pin is normally left open. If noise on the FG signal is a

problem, insert a capacitor between this pin and ground.

VREG

300

Ω

9

Continued on next page.