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KA3845BDTF Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
KA3845BDTFSAMSUNG521Yes

KA3845BDTF** is a **PWM (Pulse Width Modulation) Controller IC** manufactured by **SAMSUNG**.

The KA3845BDTF is a PWM (Pulse Width Modulation) Controller IC manufactured by SAMSUNG.

Specifications:

  • Type: Current Mode PWM Controller
  • Operating Voltage Range: 8V to 30V
  • Output Drive Current: ±1A (Peak)
  • Switching Frequency: Up to 500kHz
  • Duty Cycle Range: 0% to 100% (adjustable)
  • Error Amplifier Bandwidth: 1MHz
  • Low Start-Up Current: < 1mA
  • Under-Voltage Lockout (UVLO): Typically 8V (on) / 7.6V (off)
  • Package: TO-220F-5L (isolated tab)

Descriptions:

  • Designed for offline and DC-DC converter applications.
  • Features current-mode control for improved loop response and simplified compensation.
  • Includes built-in protections such as under-voltage lockout (UVLO), cycle-by-cycle current limiting, and latch shutdown for over-voltage protection.

Features:

  • Current-Mode Operation for precise control.
  • Auto-Recovery Overcurrent Protection with adjustable threshold.
  • Internal Trimmed Bandgap Reference for accuracy.
  • Soft-Start Function to reduce inrush current.
  • High Noise Immunity for stable performance in harsh environments.

This IC is commonly used in switching power supplies, battery chargers, and industrial power systems.

*(Note: Always refer to the official datasheet for detailed specifications and application guidelines.)*

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