TL494C TL494D SMD Chip SOP-16 Power Supply PWM Controllers

Description

TL494C TL494D SMD Chip SOP-16 Power Supply PWM Controllers

• • Operating Voltage V_CC: 7V to 40V.
  • Oscillator Frequency: 1 kHz to 300 kHz (adjustable via external R_T and C_T components).
  • Output Drive Capacity: Dual uncommitted transistors supporting up to 200 mA (sink or source) each.
  • Internal Voltage Reference: Stable 5V reference supply with a ± 5% tolerance.
  • Temperature Range: 0°C to 70°C for the TL494C device variant.
  • Duty Cycle: Configurable from 0% to 100%. 

• Dual Error Amplifiers: Two on-chip operational amplifiers are provided. These allow you to set up simultaneous voltage regulation and current-limit protection loops. 
• Output Topology Versatility: The Output Enable (OE) pin configures the dual transistors for either single-ended configurations (like forward converters) or push-pull configurations (such as half-bridge or full-bridge setups). 
• Dead-Time Control (DTC): Features a dedicated, adjustable dead-time comparator to prevent overlapping conduction (shoot-through current) in push-pull topologies, improving circuit reliability. 
• Anti-Double Pulse Circuitry: Internal master-slave flip-flop steering prevents the same output from being pulsed twice in succession during push-pull mode.