Advanced Regulating Pulse Width Modulators

This entire series of PWM Modulators UC494A UC495A each provide a complete pulse width modulation system in a single monolithic integrated circuit. These devices in- clude a 5V reference accurate to 1%, two independent Amplifiers usable for both voltage and current sensing, an externally synchronizable Oscillator with its linear ramp generator, and two uncommitted Transistor output switches. These two outputs may be operated either in parallel for single- ended operation or alternating for push-pull applications with an externally controlled dead-band. These units are internally protected against double- pulsing of a single output or from extraneous output signals when the input supply voltage is below minimum. The UC495A contains an on-chip 39V Zener Diode for High-Voltage applica- tions where VCC would be greater than 40V, and a buffered output steering control that overrides the internal control of the pulse steering Flip-Flop The UC494A is packaged in a 16-pin DIP, while the UC495A is packaged in an 18 pin DIP. The UC494A UC495A are specified for operation over the full military temperature range of -55C to +125C, while the UC494AC, UC495AC are designed for industrial applications from 0C to +70C. E By Texas Instruments
Part Manufacturer Description Datasheet Samples
UC494AJ883B Rochester Electronics LLC Switching Controller, 0.2A, 300kHz Switching Freq-Max, CDIP16, CERAMIC, DIP-16
UC494ACN Rochester Electronics LLC Switching Controller, Voltage-mode, 0.2A, 300kHz Switching Freq-Max, PDIP16, PLASTIC, DIP-16
UC494AJ Rochester Electronics LLC Switching Controller, Voltage-mode, 0.2A, 300kHz Switching Freq-Max, CDIP16, CERAMIC, DIP-16
UC494AN Rochester Electronics LLC Switching Controller, Voltage-mode, 0.2A, 300kHz Switching Freq-Max, PDIP16, PLASTIC, DIP-16
UC494ACJ Rochester Electronics LLC Switching Controller, Voltage-mode, 0.2A, 300kHz Switching Freq-Max, CDIP16, CERAMIC, DIP-16
UC494A 's PackagesUC494A 's pdf datasheet
UC495A




UC494A Pinout, Pinouts
UC494A pinout,Pin out
This is one package pinout of UC494A,If you need more pinouts please download UC494A's pdf datasheet.

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