TL494CN Semiconductors - ICs by Texas Instruments


Status: Unknown
Series: TL494
RoHS: Unknown
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The TL494 device incorporates all the functions required in the construction of a pulse-widthmodulation (PWM) control circuit on a single chip. Designed primarily for power-supply control, this device offers the flexibility to tailor the power-supply control circuitry to a specific application. The TL494 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. The TL494 device provides for push-pull or singleended 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 TL494C device is characterized for operation from 0°C to 70°C. The TL494I device is characterized for operation from –40°C to 85°C.

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Prices starting from US$0.12

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Texas Instruments
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Jameco Electronics
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Transfer Multisort Elektronik
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Input Voltage 13V
Output Voltage 40V
Output Current 200mA
Supply Voltage Min 7V
Supply Voltage Max 40V
Controller IC Case Style DIP
No. of Pins 16Pins
Frequency 300kHz
Operating Temperature Min 0°C
Operating Temperature Max 70°C
Product Range TL494
Automotive Qualification Standard -
SVHC No SVHC (27-Jun-2018)
IC Generic Number 494
IC Temperature Range Commercial
Operating Temperature Range 0°C to +70°C
Output Current Max 0.2A
Output Type Voltage
Supply Voltage Range 7V to 40V
Termination Type Through Hole

Alternative Descriptions

40V, 0.2A 300KHz PWM controller | Texas Instruments
Major Brands TL494CN Voltage Mode Pulse Width Modulator Controller 250 mA 15 pcs | Jameco Electronics
IC: PMIC | Transfer Multisort Elektronik
Switched Mode Controller, Dip, 494 | Newark Electronics
PWM Control Circuit TL494CN | RS

Frequently Asked Questions

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What category does TL494CN fall under?

The TL494CN is listed under Electronic & Electrical Components > Semiconductors - ICs > Power Management.

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Is the TL494CN RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including Texas Instruments, Jameco Electronics, Transfer Multisort Elektronik, Newark Electronics and RS have stock available or on a lead time for TL494CN.

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