The TL494 incorporates on a single monolithic chip all the functions required in the construction of a pulse-width-modulation control circuit The TL494 has an on-chip 5-volt regulator, two error amplifiers, an adjustable oscillator, a dead-time control comparator, a pulse-steering flip-flop, and output-control circuitry. It was primarily created for power supply regulation. Either a common-emitter or an emitter-follower output capability is offered by the uncommitted output transistors. Through the output-control feature, you can choose between push-pull or single-ended output operation. It is impossible for either output to be pulsed twice during push-pull operation due to the TL494's design.
Features
- Complete PWM Power-Control Circuitry
- Uncommitted Outputs for 200-mA Sink or Source Current
- Output Control Selects Single-Ended or Push-Pull Operation
- Internal Circuitry Prohibits Double Pulse at Either Output
- Variable Dead Time Provides Control Over Total Range
- Internal Regulator Provides a Stable 5-V
Applications
- Desktop PCs
- Microwave Ovens
- Server PSUs
- Solar Micro-Inverters
- Washing Machines: Low-End and High-End E-Bikes
- Smoke Detectors
For More Info. refer :Datasheet
Specification
| Model | TL494 |
| Brand | Texas Instruments |
| Type | PWM Controller IC |
| Supply voltage | 40V |
| Collector output voltage | 40V |
| Collector output current | 250mA |
| Oscillator Frequency | 300kHz (Max.) |
| Operating temperature Range | -40°C to 85°C |
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