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STR3A461HDL - Off-Line PWM Controller

General Description

The STR3A46xHL/HDL series are power ICs for switching power supplies, incorporating a power MOSFET and a current mode PWM controller IC.

To enhance efficiency in all load ranges, the IC automatically shifts its operation to the green mode or burst oscillation mode, depending on the load.

Key Features

  • Bare Lead Frame: Pb-free (RoHS compliant).
  • Low Thermal Resistance Package.
  • Improving circuit efficiency (Since the step drive control can keep VRM of secondary rectification diodes low, the circuit efficiency can be improved by low VF).
  • Noise Reduction.
  • Current Mode Type PWM Control.
  • Soft Start Function.
  • Automatic Standby Function No Load Power Consumption < 15mW.
  • Operation Mode Normal Operation ----------------------------PWM Mode Light Load Operation---.

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Datasheet Details

Part number STR3A461HDL
Manufacturer Sanken
File Size 703.86 KB
Description Off-Line PWM Controller
Datasheet download datasheet STR3A461HDL Datasheet

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Off-Line PWM Controllers with Integrated Power MOSFET STR3A46xHL/HDL Series Data Sheet Description The STR3A46xHL/HDL series are power ICs for switching power supplies, incorporating a power MOSFET and a current mode PWM controller IC. To enhance efficiency in all load ranges, the IC automatically shifts its operation to the green mode or burst oscillation mode, depending on the load. The product achieves high cost-performance power supply systems with few external components.