Company Name: Excellent Integrated System LIMITED

Contact Person : John

Email/Msn    :John(at)eis-ic.com

Tel          : 00852-30777742

Add.: RM 906, WORKINGBERG COMM BLDG, 41-47 MARBLE RD, HONGKONG

Excellent Integrated System LIMITED (EIS LIMITED), Established in 1991, is a professional independent stocking distributor of electronic components and specialize in buying the EXCESS STOCK from the original equipment manufacturers (OEMs), Contract equipment manufacturers (CEMs), and many other factories. EIS has gained good experiences in Excess Inventory Management through its development over 20 years and has become the reliable partner for the domestic and foreign OEM manufacturers. If any inquiry and question,please email us: john(at)eis-ic.com.

Description as follow:

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, the TL494CDR offers the flexibility to tailor the power-supply control circuitry to a specific application. The TL494CDR contains two error amplifiers, an on-chip adjustable oscillator, a dead-time control (DTC) comparator, a pulse-steering control flip-flop, a 5-V, 5%-precision regulator, and output control circuits.

Parametrics

TL494CDR absolute maximum ratings: (1)VCC Supply voltage: 41 V; (2)VI Amplifier input voltage VCC: + 0.3 V; (3)VO Collector output voltage: 41 V; (4)IO Collector output current: 250 mA; (5)Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: 260 ℃; (6)Tstg Storage temperature range: –65 to 150 ℃.

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