LB11693H
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Pin No. Symbol
Description
20
S/S
Start/stop control. Low: start, high or open: stop.
Equivalent circuit
21
EI+
CTL amplifier noninverting input
22
EI-
CTL amplifier inverting input
23
TOC
PWM waveform comparator
(CTL amplifier output)
25
PWM
PWM oscillator frequency setting.
Connect a capacitor between this pin and ground.
A frequency of about 20kHz can be set by using a
2200pF capacitor.
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