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Supertex inc.
HV440
High Voltage Ring Generator IC
Features
►► 220V maximum operating voltage ►► Integrated high voltage transistors ►► Up to 70VRMS ring signal ►► Pulse by pulse output over current protection ►► 5 REN output capability ►► External MOSFETs enhance output rating to 20 REN
General Description
The Supertex HV440 is a monolithic integrated circuit capable of generating up to 70V RMS sine wave output at frequencies of 15 to 60Hz with a load of 5 North American RENs. Its out putrating can be enhanced to 20 North American RENs with the addition of two Supertex MOSFETs: one N-Channel MOSFET, the TN2524N8, and one P-Channel MOSFET, the TP2522N8.