TL494CN / TL494C DIP-16 PWM Controller IC — Switching Power Supply (5PCS)

TL494CN / TL494C DIP-16 PWM Controller IC — 5PCS Pack

The TL494 is a fixed-frequency pulse-width modulation (PWM) control circuit widely used in switching power supply design. Available in DIP-16 package, it features dual error amplifiers, an on-chip oscillator, a dead-time control comparator, and output transistors capable of driving push-pull or single-ended topologies. This 5-piece pack is ideal for prototyping, repair, and lab stock.

Key Specifications

Parameter	Value
Part Numbers	TL494CN, TL494C
Package	DIP-16
Supply Voltage (Vcc)	7V – 40V
Output Current (per transistor)	200mA (sink/source)
Oscillator Frequency	1Hz – 300kHz (set by RT/CT)
Reference Voltage	5V ± 1% internal reference
Dead-Time Control	Adjustable via DTC pin
Output Mode	Push-pull or single-ended
Operating Temperature	0°C to +70°C (TL494C) / -40°C to +85°C (TL494CN)

Why Choose TL494?

• ✅ Industry-standard PWM controller — decades of proven reliability in SMPS design
• ✅ Dual error amplifiers — voltage and current mode control in one IC
• ✅ Wide supply range (7–40V) — flexible for various power supply topologies
• ✅ Adjustable dead time — prevents shoot-through in push-pull stages
• ✅ DIP-16 package — breadboard and through-hole PCB compatible

Typical Applications

• Forward and flyback switching power supplies
• DC-DC buck/boost converters
• ATX power supply repair and modification
• Motor speed controllers
• Battery charger circuits
• Inverter and UPS designs

Package Contents

• 5 × TL494CN or TL494C DIP-16 PWM Controller ICs

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