Resonant Ring Generator Controller

The UCC3752 controller is designed for driving a power stage that gener- ates low frequency, high voltage sinusoidal signals for telephone ringing applications. The controller and the power stage are most suitable for up to 5 line applications where low cost, high efficiency and minimum parts count are critical. A semi-regulated DC voltage is added as an offset to the ring- ing signal. The ring generator operation is non-isolated and open loop. The UCC3752 directly drives primary side switches used to implement a push-pull resonant converter topology and transformer coupled sampling switches located on the secondary of the converter. For normal ring signal generation, the primary switching frequency and secondary sampling fre- quency are precisely offset from each other by the ringing frequency to pro- duce a high voltage low frequency alias signal at the output. The off-hook condition is detected by sensing the AC current and when AC limit is ex- ceeded, a flag is generated on the OFFHOOK pin. The drive signal frequencies are derived from a high frequency (3579545 Hz) crystal. The primary switching frequency is 89.489 kHz and the sam- pling frequency is 20, 25 or 50 Hz less depending on the status of fre- quency select pins FS0 and FS1. By Texas Instruments
Part Manufacturer Description Datasheet Samples
UCC27524P Texas Instruments Dual, 5A, High-Speed Low-Side Power MOSFET Driver 8-PDIP -40 to 140
UCC27526DSDR Texas Instruments Dual, 5A, High-Speed Low-Side Power MOSFET Driver 8-SON -40 to 140
UCC27525DGN Texas Instruments Dual, 5A, High-Speed Low-Side Power MOSFET Driver 8-MSOP-PowerPAD -40 to 140
UCC27524DGN Texas Instruments Dual, 5A, High-Speed Low-Side Power MOSFET Driver 8-MSOP-PowerPAD -40 to 140
UCC27524D Texas Instruments Dual, 5A, High-Speed Low-Side Power MOSFET Driver 8-SOIC -40 to 140
UCC27524DSDT Texas Instruments Dual, 5A, High-Speed Low-Side Power MOSFET Driver 8-SON -40 to 140
UCC27524DR Texas Instruments Dual, 5A, High-Speed Low-Side Power MOSFET Driver 8-SOIC -40 to 140
UCC27524DGNT Texas Instruments BUF OR INV BASED MOSFET DRIVER
UCC27523DSDR Texas Instruments Dual, 5A, High-Speed Low-Side Power MOSFET Driver 8-SON -40 to 140
UCC27525D Texas Instruments Dual, 5A, High-Speed Low-Side Power MOSFET Driver 8-SOIC -40 to 140
UCC2752 's PackagesUCC2752 's pdf datasheet



UCC2752 Pinout, Pinouts
UCC2752 pinout,Pin out
This is one package pinout of UCC2752,If you need more pinouts please download UCC2752's pdf datasheet.

UCC2752 Application circuits
UCC2752 circuits
This is one application circuit of UCC2752,If you need more circuits,please download UCC2752's pdf datasheet.


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