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UC3848 - HIGH-PERFORMANCE CONTROLLER

General Description

The UTC UC3848 is designed to provide several special enhancements to satisfy the needs, for example, Power-Saving mode for low standby power (

Key Features

  • S.
  • Low Startup Current (about 22μA).
  • Fixed Switching Frequency(Norm. is 68KHz).
  • Frequency Hopping for Improved EMI Performance.
  • Lower than 0.3W Standby Power Design.
  • Linearly Decreasing Frequency to 26KHz During Light Load.
  • Soft Start.
  • Internal Slope Compensation.
  • Constant Power Limiting for Universal AC input Range.
  • Gate Output Maximum Voltage Clamp(15V).
  • Max Duty Cycle 74%.
  • Over Temperature Protection.
  • Overload Protection.
  • Over.

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Full PDF Text Transcription for UC3848 (Reference)

Note: Below is a high-fidelity text extraction (approx. 800 characters) for UC3848. For precise diagrams, and layout, please refer to the original PDF.

UNISONIC TECHNOLOGIES CO., LTD UC3848 LINEAR INTEGRATED CIRCUIT HIGH PERFORMANCE CURRENT MODE CONTROLLERS „ DESCRIPTION The UTC UC3848 is designed to provide several spec...

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LLERS „ DESCRIPTION The UTC UC3848 is designed to provide several special enhancements to satisfy the needs, for example, Power-Saving mode for low standby power (<0.3W), Frequency Hopping , Constant Output Power Limiting , Slope Compensation ,Over Current Protection (OCP), Over Voltage Protection (OVP), Over Load Protection (OLP), Under Voltage Lock Out (UVLO), Short Circuit Protection (SCP) , Over Temperature Protection (OTP) etc. IC will be shutdown or can auto-restart in situations. „ FEATURES * Low Startup Current (about 22μA) * Fixed Switching Frequency(Norm. is 68KHz) * Frequency Hopping for Improved EMI Performance

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