Product Summary

The tl494cdr, is a pulse-width-modulation control circuit. The tl494cdr, incorporates all the functions required in the construction of a pulse-width-modulation (PWM) control circuit on a single chip. Designed primarily for power-supply control, this device offers the flexibility to tailor the power-supply control circuitry to a specific application.



Parametrics

tl494cdr, absolute maximum ratings: (1)Input offset voltage: 2 to 10 mV; (2)Input offset current: 25 to 250 nA; (3)Input bias current: 0.2 1 mA; (4)Common-mode input voltage range: -0.3 to VCC-2 V; (5)Open-loop voltage amplification: 70 to 95 dB; (6)Unity-gain bandwidth: 800 kHz; (7)Common-mode rejection ratio: 65 to 80 dB; (8)Output sink current (FEEDBACK): 0.3 to 0.7 mA; (9)Output source current (FEEDBACK): –2 mA.

Features

tl494cdr, features: (1)Complete PWM Power-Control Circuitry; (2)Uncommitted Outputs for 200-mA Sink or Source Current; (3)Output Control Selects Single-Ended or Push-Pull Operation; (4)Internal Circuitry Prohibits Double Pulse at Either Output; (5)Variable Dead Time Provides Control Over Total Range; (6)Internal Regulator Provides a Stable 5-V Reference Supply With 5% Tolerance; (7)Circuit Architecture Allows Easy Synchronization.

Diagrams

tl494cdr, pin connection