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BD81A44MUV-M Datasheet 4ch White LED Driver

Manufacturer: ROHM

Overview: Datasheet 4ch White LED Driver Built-in Current Driver Buck-Boost and Boost DC/DC Converter for Automotive BD81A44EFV-M BD81A44MUV-M.

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General Description

Key Specifications BD81A44EFV-M / BD81A44MUV-M is a white LED driver with the capability of withstanding high input voltage (maximum 35 V).

This driver has 4ch constantcurrent drivers in 1-chip, where each channel can draw up to 120 mA (Max), and it is suitable for high illumination LED drive.

Furthermore, a buck-boost current mode DC/DC converter is also built to achieve stable operation during power voltage fluctuation.

Key Features

  • Operating Input Voltage Range 4.5 V to 35 V.
  • Output LED Current Accuracy ±3.0 %@50 mA.
  • DC/DC Oscillation Frequency 200 kHz to 2200 kHz.
  • Operating Temperature -40 °C to +125 °C.
  • LED Maximum Output Current 120 mA/ch.
  • LED Maximum Dimming Ratio 10,000:1@100 Hz.
  • PWM Minimum Pulse Width 1.0 µs Packages VQFN28SV5050 HTSSOP-B28 W (Typ) x D (Typ) x H (Max) 5.0 mm x 5.0 mm x 1.0 mm 9.7 mm x 6.4 mm x 1.0 mm.
  • AEC-Q100 Qualified.
  • 1.
  • 4ch Current.

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