TL494IDR Datasheet

Voltage Mode PWM Controllers


The TL494IDR incorporates all the functions required in the construction of a pulse-width-modulation (PWM) controlcircuit on a single chip. Designed primarily for power-supply control, this device offers the flexibility to tailor thepower-supply control circuitry to a specific application.The TL494IDR 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 controlcomparator has a fixed offset that provides approximately 5% dead time. The on-chip oscillator can be bypassedby terminating RT to the reference output and providing a sawtooth input to CT, or it can drive the commoncircuits in synchronous multiple-rail power supplies. TL494IDR 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•Circuit Architecture Allows Easy Synchronization


[{"Name":"Number of Outputs","Value":"2"},{"Name":"Topology ","Value":"Boost, Buck, Flyback, Forward, Full-Bridge, Half-Bridge, Push-Pull"},{"Name":"Output Voltage","Value":"40 V "},{"Name":"Output Current","Value":"200 mA "},{"Name":"Switching Frequency","Value":"300 kHz"},{"Name":"Maximum Operating Temperature","Value":"+ 85 C "},{"Name":"Minimum Operating Temperature","Value":"- 40 C "},{"Name":"Package / Case ","Value":"SOIC-16"},{"Name":"Packaging ","Value":"Reel "}]

Manufacturer information

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