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BP9021A - High Precision PSR Constant Current LED Driver

Description

The BP9021A is a high precision primary-side feedback and regulation controller for LED lighting, it operates in constant current control mode and is designed to work in inductor current discontinuous conduction mode and especially suitable for flyback convertor under universal input.

Features

  • Built-in 650V Power MOSFET.
  • Constant current control without secondary sense and feedback circuit.
  • No Auxiliary winding for sensing and supplying.
  • Ultra low operating current to improve efficiency.
  • Universal input voltage.
  • ±5% LED current accuracy.
  • LED short and open circuit protection.
  • CS resistor short circuit protection.
  • VCC under-voltage protection.
  • Thermal regulation.
  • Available in SOP8 package.

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Datasheet Details

Part number BP9021A
Manufacturer BPS
File Size 440.43 KB
Description High Precision PSR Constant Current LED Driver
Datasheet download datasheet BP9021A Datasheet

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Full PDF Text Transcription

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BP9021A High Precision PSR Constant Current LED Driver Description The BP9021A is a high precision primary-side feedback and regulation controller for LED lighting, it operates in constant current control mode and is designed to work in inductor current discontinuous conduction mode and especially suitable for flyback convertor under universal input. The output power of system is recommended to less than 3W. The BP9021A integrates 650V power MOSFET. Since adopting primary sense and feedback control technology, the secondary sense and feedback circuit is eliminated. The loop compensation components are also removed while maintaining stability overall operating conditions.
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