DESCRIPTION

The UTC TL1451 incorporates on a single monolithic chip all the functions required in the construction of two pulsewidth-modulation (PWM) control circuits. Designed primarily for power supply control, the TL1451 contains an on-chip 2.5V regulator, two error amplifiers, an adjustable oscillator, two dead-time comparators, undervoltage lockout circuitry, and dual common –emitter output transistor circuits.

FEATURES

* Complete PWM Power control Circuitry

* Completely Synchronized Operation

* Internal Undervoltage Lockout Protection

* Wide Supply Voltage Range

* Internal Short-Circuit Protection

* Oscillator Frequency …500kHz Max

* Variable Dead Time Provides Control Over Total Range

* Internal Regulator Provides a Stable 2.5V Reference Supply