FP0060
Waveform: Solenoid not shorted
Channel 1: EN signal 0 to 12V logic input
turning the solenoid on and off.
Channel 2: Voltage on ACIN pin. When off,
the full AC voltage is seen on ACIN. When
on, only about 2V drop due to IR drops.
Channel 3: Voltage across a 1.0Ω resistor.
Sees the expected pull-in current of 700mA
then 400mA peaks.
Waveform: Solenoid shorted
Enable from low to high into
a shorted solenoid.
Peak currents of about ±±.ꢀ0.
See inductive boosting action
due to FPꢀꢀ6ꢀ turning off.
Pin Description
Pin Name Description
EN
Enable pin. Logic high turns on the switch.
Ground. Device ground.
GND
ACIN
AC voltage input. Connect to load.
Doc.# DSFP-FP0060
A100312
Supertex inc.
www.supertex.com
4
SUPERTEX [ Supertex, Inc ]
