HV461 Datasheet PDF

Supertex HV461

The HV461 consists of a sine wave synthesizer that can provide eight different ring frequencies for universal applications. The output amplitude and DC offset can be digitally controlled providing high flexibility to the designers. The patented inverter topology using the HV461 controller IC is capable of achieving higher efficiencies, typically over 80%, and drive up to a 40 REN load.

Part No.	HV461
Datasheet	HV461 Download
Manufacturer	Supertex
Description	Ring Generator Controller IC
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FEATURES

►► 3.3V operation, logic inputs 3.3V & 5.0V compatible ►► Digital control of ring frequency, amplitude, and offset ►► Control via 8-bit bus or via individual inputs ►► 8 built-in ring 50, 60Hz frequencies: 12, 162/3, 20, 25, 331/3, 40, ►► External ring frequency input ►► Low distortion sine wave synthesizer ►► AC-only, AC+DC, or DC-only ringer output ►► Adjustable over-current protection ►► Internal precision voltage references ►► Power-on reset and undervoltage lockout for hotswap capability ►► Sync output with adjustable lead time for synchronizing ringing relays ►► Fault output for problem detection ►► Open or closed loop operation ►► Efficient 4-quadrant operation ►► Zero-cross turn-on with zero-cross turn-off option

APPLICATIONS

►► PBX ►► DLC ►► Key Systems ►► Remote Terminal ►► Wireless Loop Systems

GENERAL DESCRIPTION

The HV461FG is a highly integrated ring generator controller IC, designed to work with a patented four-quadrant inverter topology, with synchronous rectifiers on the secondary side to achieve higher efficiencies.