UCC2804-Q1, UCC2800-Q1 Datasheet (Texas Instruments)

UCC2804-Q1, UCC2800-Q1, PWM

The UCC2800/1/2/3/4/5 family of 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 UC2842/3/4

ą UCC2800/2801/2802/2803/2804/2805ĆQ1 LOWĆPOWER BICMOS CURRENTĆMODE PWM D Qualified for Automotive Applications D ESD Protection Exceeds 200 V Using Machine Model (C = 200 pF, R = 0) D 100-µA Typical Starting Supply Current D 500-µA Typical Operating Supply Current D Operation to 1 MHz D Internal Soft Start D Internal Fault Soft Start SGLS121C JULY 2002 REVISED APRIL 2008 D Internal Leading-Edge Blanking of the Current Sense Signal D 1-Amp Totem-Pole Output D 70-ns Typical

UCC2804-Q1 Features

* of internal full-cycle soft start and internal leading-edge blanking of the current-sense input. The UCC2800/1/2/3/4/5 family offers choice of maximum duty cycle and critical voltage levels. Lower reference parts such as the UCC2803 and UCC2805 fit best into battery operated systems, while the highe