LB11693JH

No.A0606-7/12

Continued from preceding page.

Pin

No.

Symbol

Pin Description

Equivalent Circuit

17

RD

Motor constrained state detection output

(This is an open-collector output.)

When the motor is constrained: high, when the motor is

turning: low.

18

PWM

IN

PWM pulse input.

When low the output will be on and when high the

outputs will be off. If this pin is used to control this IC,

connect EI- to ground and connect EI+ to TOC.

20

S/S

Start/stop control. Low: start, high or open: stop.

21

22

EI+

EI-

CTL amplifier noninverting input

CTL amplifier inverting input

23

TOC

PWM waveform comparator (CTL amplifier output)

Continued on next page.

VREG

17

VREG

5k

Ω

18

VREG

5k

Ω

20

VREG

300

Ω

22

300

Ω

21

PWM comparator

VREG

23