Key facts
- Brand
- ON Semiconductor
- Model
- TL494
- Industry
- Industrial
- Documents
- 5
- Languages
- EN
- Last added
- 2012-07-12
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ON Semiconductor TL494/NCV494 Switchmode Pulse Width Modulation Control Circuit Datasheet
The TL494 and NCV494 are fixed-frequency pulse width modulation control circuits designed primarily for SWITCHMODE power supply control. They feature complete pulse width modulation control circuitry, including an on-chip oscillator with master or slave operation, on-chip error amplifiers, and an on-chip 5.0 V reference.
Read onlineON Semiconductor TL494 specifications
| Power Supply Voltage | 7.0 to 40 V |
|---|---|
| Collector Output Current | 500 mA |
| Operating Junction Temperature | 125 °C |
| Reference Voltage | 5.0 V |
| Oscillator Frequency | 1.0 to 200 kHz |
Source: ON Semiconductor TL494/NCV494 Switchmode Pulse Width Modulation Control Circuit Datasheet
All ON Semiconductor TL494 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the primary application of the TL494?
It is designed primarily for SWITCHMODE power supply control.
From: ON Semiconductor TL494/NCV494 Switchmode Pulse Width Modulation Control Circuit Datasheet
What is the typical thermal drift of the internal reference?
The internal 5.0 V reference has a typical thermal drift of less than 50 mV over an operating temperature range of 0° to 70°C.
From: ON Semiconductor TL494/NCV494 Switchmode Pulse Width Modulation Control Circuit Datasheet
What is the maximum output current per transistor?
Each output transistor is rated for up to 500 mA.
What is the typical oscillator frequency?
The typical oscillator frequency is 40 kHz.
What is the maximum output current each transistor can handle?
Each output transistor is rated for up to 500 mA source or sink current.
From: ON Semiconductor TL494 / NCV494 PWM Control IC Datasheet
What is the oscillator frequency range of the TL494/NCV494?
The oscillator can be programmed to operate between 1 kHz and 200 kHz.
From: ON Semiconductor TL494 / NCV494 PWM Control IC Datasheet