PD5036 Datasheet | PowerDsine

Telephone Ring Generator Controller US Patent No. 5,828,558 Patent Pending in Europe, and Asia http://.. PD5036 TELEPHONE RING GENERATOR CONTROLLER Features - - - - - - - - - - Integrated Overload and Short Circuit Protection Programmable Large Swing Output Amplitude Digitally Selectable Ringing Frequencies; 16.7/20/25 or 50Hz Line Regulated Output Amplitude, 45-93Vrms Overload Protection with Adaptive Output Amplitude Off-Hook / Overload Detection Zero Crossing Synchronization Output Operates from a Single 5V Supply Open Loop Flyback Topology Reduces ponent Count Total Bill of Material Cost as Low as $5 Including the PD5036 for 2W Ring Generator Applications INHIBIT FS F1 F0 OHD XTAL1 XTAL2 GND 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 Vcc PWM_Out I.C. CL CAD_In PAD_Out BRC SYNC APPLICATIONS - - - - - - - 1 to 3 Watt Low Cost Sine Wave Ring Generators 3 to 6 Watt advanced Sine Wave Ring Generators Large Variety of Customized Sine Wave Ring Generators Ring Generator for PBX, PABX, DCL, CTI and Key Systems Ring Generator for Rural Telephony and Wireless Local Loop Systems Ring Generator for Short/Long Loop Applications Ring Generator for Tele Test Equipment SOW-16 Package GENERAL DESCRIPTION The PD5036 is a unique pul se w idth m odulator c ontroller, des igned pri marily f or a vari ety of hi gh vol tage s inusoidal t elephone ring generat or applications. The PD5036 is suitable for applications requiring up to 6 Watt and provides all necessary controls for implementing advanced overload protection, zero crossing relay switching synchronization, Off-Hook detection, multiple ringing frequency selection and output amplitude adjustment. The power train, designed to be used with the PD5036, is an i solated, open l oop flyback t opology. The P D5036 generates a P WM s ignal, which drives a FE T t ransistor t hat s witches t he primary of a f lyback t ransformer. Thi s produces a rec tified half s ine wave on the secondary side of t he...