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BP9938D - Non-isolated Buck Offline LED Driver

Download the BP9938D datasheet PDF. This datasheet also covers the BP9938C variant, as both devices belong to the same non-isolated buck offline led driver family and are provided as variant models within a single manufacturer datasheet.

Description

BP9938X is a high precision Buck constant current LED driver.

The device operates in critical conduction mode and is suitable for 85Vac~265Vac universal input offline LED lighting.

The BP9938X integrates a 500V power MOSFET.

Features

  • No VCC Capacitor and Startup Resistor.
  • Internal 500V Power MOSFET.
  • Integrated HV JFET for IC Power Supply.
  • No Auxiliary Winding.
  • Critical Conduction Mode Operation.
  • ±5% LED Output Current Accuracy.
  • LED Short Protection.
  • VCC Under Voltage Protection.
  • Thermal Regulation Function.
  • Available in SOT33-4 Package.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (BP9938C-BPS.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number BP9938D
Manufacturer BPS
File Size 186.07 KB
Description Non-isolated Buck Offline LED Driver
Datasheet download datasheet BP9938D Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
BP9632A Display Bolymin

Other Datasheets by BPS

Part Number Description
BP9938C Non-isolated Buck Offline LED Driver
BP9938E Non-Isolated Buck LED Constant Current Driver
BP9938F Non-isolated Buck Offline LED Driver
BP9911A Non-isolated Buck Offline LED Driver
BP9911B Non-isolated Buck Offline LED Driver

Full PDF Text Transcription

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BP9938X Non-isolated Buck Offline LED Driver Description BP9938X is a high precision Buck constant current LED driver. The device operates in critical conduction mode and is suitable for 85Vac~265Vac universal input offline LED lighting. The BP9938X integrates a 500V power MOSFET. With proprietary MOSFET driving technique. It doesn’t need VCC capacitor and startup resistor. It can achieve excellent constant current performance with very few external components, so the system cost and size are minimized. BP9938X utilizes proprietary current control method. It can achieve precise output current and excellent line regulation. The driver operates in critical conduction mode, the output current does not change with the inductance and output voltage.
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