TL494 SOP
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
Reference Supply With 5% Tolerance
• Circuit Architecture Allows Easy Synchronization
₨40
CompareTL494 device 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.
The error amplifiers exhibit a common-mode voltage range from –0.3 V to VCC – 2 V. The dead-time control comparator has a fixed offset that provides
approximately 5% dead time. The on-chip oscillator can be bypassed by terminating RT to the reference output and providing a sawtooth input to CT, or it can
drive the common circuits in synchronous multiple-rail power supplies.
The uncommitted output transistors provide either common-emitter or emitter-follower output capability. TL494 device provides for push-pull or single-
ended output operation, which can be selected through the output-control function. The architecture of this device prohibits the possibility of either output being pulsed twice during push-pull operation.The TL494 device is characterized for operation from 0°C to 70°C. It is characterized for operation from –40°C to 85°C.
TL494 Price in Pakistan
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