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UCC28C40D Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
UCC28C40DTI150Yes

UCC28C40D is a high-performance current-mode PWM controller manufactured by Texas Instruments (TI) under the UNITRODE brand.

The UCC28C40D is a high-performance current-mode PWM controller manufactured by Texas Instruments (TI) under the UNITRODE brand.

Key Specifications:

  • Topology: Current-mode PWM controller
  • Input Voltage Range (VCC): 8.5V to 21V (operating)
  • Maximum Duty Cycle: 50% (typical)
  • Switching Frequency: Up to 1MHz (adjustable with external components)
  • Output Drive Current: ±1A (peak)
  • Operating Temperature Range: -40°C to +85°C
  • Package: SOIC-8

Descriptions and Features:

  • Current-Mode Control: Provides cycle-by-cycle current limiting for improved transient response.
  • Programmable Oscillator: Allows frequency adjustment via external resistor and capacitor.
  • Soft-Start Capability: Reduces inrush current during startup.
  • Undervoltage Lockout (UVLO): Ensures proper operation within specified voltage range.
  • Error Amplifier: Includes a high-gain bandwidth error amplifier for precise regulation.
  • Synchronization Capability: Can be synchronized to an external clock.
  • Low Startup Current: Typically 0.5mA for efficient power-up.
  • Protection Features: Includes pulse-by-pulse current limiting and latch-off for overvoltage protection.

This device is commonly used in offline and DC-DC power supplies, battery chargers, and other power management applications.

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