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TL494 PWM Power-Control Circuit
Complete power-control circuit with uncommitted outputs and variable dead time
- Supply Voltage: 41V
- Amplifier Input Voltage: VCC+0.3V
- Collector Output Voltage: 41V
- Collector Output Current: 250mA
- Lead Temperature: 260°C
- Storage Temperature Range: -65°C to 150°C
- Related Document: TL494 IC Data Sheet
Features:
- Complete PWM power-control circuitry
- Uncommitted outputs for 200mA sink or source current
- Output control selects single-ended or push-pull operation
- Internal circuitry prohibits double pulse at either output
The TL494 device includes two error amplifiers, on-chip adjustable oscillator, dead-time control (DTC) comparator, and more. The error amplifiers have a common-mode voltage range from -0.3V to VCC - 2V. The dead-time control comparator provides about 5% dead time. The on-chip oscillator can drive common circuits in synchronous multiple-rail power supplies.
The uncommitted output transistors offer common-emitter or emitter-follower output capability. This device allows for push-pull or single-ended output operation, with output-control function selection. The architecture prevents either output from being pulsed twice during push-pull operation.
The TL494C operates between 0°C and 70°C for different applications.
*Images are for illustration only; actual product may vary.*