UCC2813DTR-4

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Texas Instruments

ECONOMY LOW POWER BICMOS 1MHZ CURRENT MODE PWM WITH 12.5V/8.3V UVLO, 50% DUTY CYCLE, -40C TO 85C

UCC2813DTR-4

Active

Texas Instruments

ECONOMY LOW POWER BICMOS 1MHZ CURRENT MODE PWM WITH 12.5V/8.3V UVLO, 50% DUTY CYCLE, -40C TO 85C

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Description

General part information

UCC2813-4 Series

The UCC3813-x device family of high-speed, low-power integrated circuits contains 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 UC384x device family, and also offer the added features of internal full-cycle soft start and internal leading-edge blanking of the current-sense input.

The UCC3813-x device family offers a variety of package options, temperature-range options, choice of maximum duty cycle, and choice of critical voltage levels. Devices with lower reference voltage 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 device and UCC3813-4 device make these ideal choices for use in off-line power supplies.

Technical Specifications

Parameters and characteristics for this part

Specification	UCC2813DTR-4

Control Features	Frequency Control
Duty Cycle	49 %
Frequency - Switching	1 MHz
Internal Switch(s)	No
Mounting Type	Surface Mount
Operating Temperature (Max)	150 °C
Operating Temperature (Min)	-55 °C
Output Isolation	Either
Package Length	0.154 in
Package Name	8-SOIC
Package Width	3.9 mm
Topology	Forward, Flyback, Boost
Voltage - Start Up	12.5 V
Voltage - Supply (Vcc/Vdd) Maximum	12 V
Voltage - Supply (Vcc/Vdd) Minimum	8.3 V