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KA7551 Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
KA7551SAMSUNG288Yes

KA7551** is a switching mode power supply (SMPS) controller IC manufactured by **SAMSUNG**.

The KA7551 is a switching mode power supply (SMPS) controller IC manufactured by SAMSUNG. Below are its specifications, descriptions, and features:

Specifications:

  • Manufacturer: SAMSUNG
  • Type: SMPS (Switching Mode Power Supply) Controller
  • Package: SOP-8 (Small Outline Package)
  • Input Voltage Range: 8V to 30V
  • Operating Frequency: Adjustable (typically up to 500kHz)
  • Output Duty Cycle: Adjustable (PWM control)
  • Standby Power Consumption: Low (suitable for energy-efficient designs)
  • Protection Features: Overvoltage protection (OVP), Undervoltage lockout (UVLO), Overcurrent protection (OCP)

Descriptions:

The KA7551 is a pulse-width modulation (PWM) controller IC designed for offline and DC-DC power supply applications. It provides precise control over switching power supplies, ensuring stable voltage regulation. The IC integrates multiple protection mechanisms to enhance system reliability.

Features:

  • Adjustable PWM Frequency: Allows optimization for different power supply designs.
  • Soft-Start Function: Reduces inrush current during startup.
  • Error Amplifier: Ensures accurate feedback control for voltage regulation.
  • Low Standby Current: Improves efficiency in standby mode.
  • Built-in Protection Circuits: Includes OVP, UVLO, and OCP for safe operation.
  • Wide Input Voltage Range: Supports 8V to 30V, making it versatile for various applications.

The KA7551 is commonly used in:

  • AC/DC adapters
  • LED drivers
  • Industrial power supplies
  • Consumer electronics power management

This information is based on the manufacturer's datasheet and technical documentation. For detailed electrical characteristics and application circuits, refer to the official SAMSUNG KA7551 datasheet.

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