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Bridgold 20pcs TL494CN TL494 Counter IC,PWM Controller Integrated Circuit,300 kHz 16-Pin

4.4 4.4 out of 5 stars 26 ratings
$7.99 $0.40 per Item
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Purchase options and add-ons

  • Built-in linear sawtooth oscillator with only two external oscillating components (resistance and capacitance)
  • Built-in 5V reference voltage source
  • Built-in power transistor provides 500mA drive capability
  • Built-in error amplifier
  • Integrated all pulse width modulation circuits

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Bridgold 20pcs TL494CN TL494 Counter IC,PWM Controller Integrated Circuit,300 kHz 16-Pin
$7.99 ($0.40/Item)
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Eowpower 150Pcs 2.54mm Pitch DIP IC Sockets Adaptor Assortment Kit 6,8,14,16,18,24,28,40 Pin
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Product details

  • Package Dimensions ‏ : ‎ 10 x 9 x 0.2 inches; 0.81 ounces
  • Date First Available ‏ : ‎ May 21, 2019
  • Manufacturer ‏ : ‎ Bridgold
  • ASIN ‏ : ‎ B07S1X3JYV
  • Customer Reviews:
    4.4 4.4 out of 5 stars 26 ratings

Product Description

The TL494CN is a PWM Control Circuit incorporates all the functions required in the construction of a pulse-width-modulation (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 error amplifiers exhibit a common-mode voltage range. 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 saw tooth input to CT or it can drive the common circuits in synchronous multiple-rail power supplies.
Minimum Operating Supply Voltage:7 V
Maximum Operating Supply Voltage:40 V
Minimum Operating Temperature:0 °C
Maximum Operating Temperature:+70 °C
Output Current:200 (Max) mA
Dimensions:19.3 x 6.35 x 4.57mm
Maximum Switching Frequency:300 kHz
Package include:
20pcs*TL494CN

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Customer reviews

4.4 out of 5 stars
4.4 out of 5
26 global ratings

Top reviews from the United States

Takeo_San
5.0 out of 5 stars Not for the faint at heart
Reviewed in the United States on February 13, 2020
Verified Purchase
Was able to make a fan controller with this. Happy with it
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Dean
4.0 out of 5 stars A great project based chip.
Reviewed in the United States on February 13, 2020
Verified Purchase
These chips were easy to configure to multiple projects, it has simple resistor/capacitor on-chip oscillator, two independent error amps to configure the chip to your liking ( i.e. : final voltage and amperage control , or whatever specific aspects). This chip seems to be stable and functional through a wide range of voltages, although 7 volts through 40 volts appears to be its maximum range. As far as I can tell, these are authentic chips, being that I have found others that were cheaper but didn’t seem right.
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Khaled
5.0 out of 5 stars Haven't tried them yet, but reached on time. Thank you.
Reviewed in the United States on May 6, 2022
Verified Purchase
I liked it and it used for WPM circuits driver.
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Will
1.0 out of 5 stars AVOID - Out of Spec, Probably Counterfeit
Reviewed in the United States on January 24, 2020
Verified Purchase
These chips appear to be the real deal but when I test them in a known-good circuit they refuse to operate over about 50kHz, they should be capable of 200-300 kHz without much trouble.

A genuine TL494CN that I have operates up to 400kHz in the same circuit.

Useless for my application that needs to operate at 100kHz.
2 people found this helpful
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