UCC2813D-4G4 Datasheet

PMIC - Voltage Regulators - DC DC Switching Controllers


The UCC2813D-4G4 ,high-speed, low-power integrated circuits contain all of the control and drive components required for off-line and DC-to-DC fixed frequency current-mode switching power supplies with minimal parts count. These devices have the same pin configuration as the UC3842/314/5 family, and also offer the added features of internal full-cycle soft start and internal leading-edge blanking of the current-sense input. The UCC2813D-4G4 offers a variety of package options, temperature range options, choice of maximum duty cycle, and choice of critical voltage levels. Lower reference parts such as the UCC3813-3 and UCC3813-5 fit best into battery operated systems, while the higher reference and the higher UVLO hysteresis of the UCC3813-2 and UCC3813-4 make these ideal choices for use in off-line power supplies.. The UCC2813-x series is specified for operation from -400C to +850C and the UCC2813D-4G4 is specified for operation from 00C to +700C. UCC2813D-4G4 Features • 1005A Typical Starting Supply Current• 5005A Typical Operating Supply Current• Operation to 1 MHz• Internal Soft Start• Internal Fault Soft Start• Internal Leading-Edge Blanking of the Current Sense Signal• 1 Amp Totem-Pole Output• 70ns Typical Response from Current-Sense to Gate Drive Output• 1.5% Tolerance Voltage Reference• Same Pinout as UCC3802, UC3842, and UC3842A



Manufacturer information


Microchip Technology Inc. is a leading provider of microcontroller, mixed-signal, analog and Flash-IP solutions, providing low-risk product development, lower total system cost and faster time to market for thousands of diverse customer applications worldwide. Headquartered in Chandler, Arizona, Microchip offers outstanding technical support along with dependable delivery and quality.

Microchip Technology Inc. has acquired Atmel.

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