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BD81A34MUV-M - 4ch White LED Driver

General Description

BD81A34MUV-M/EFV-M is a white LED driver with the capability of withstanding high input voltage (35V Max).

This driver has 4ch constant-current drivers integrated in 1-chip, where each channel can draw up to 120mA (Max), which is also suitable for high illumination LED drive.

Key Features

  • Integrated Buck-Boost current mode DC/DC controller Integrated 4ch current driver for LED drive PWM light modulation (Dimming)-supported External switching frequency synchronization Built-In protection function (UVLO, OVP, OCP, SCP) LED abnormality detection function (Open/Short) Integrated VOUT discharge function (Buck-Boost structure limitation) AEC-Q100 Qualified Package(s) W(Typ) x D(Typ) x H(Max) VQFN28SV5050 HTSSOP-B28 (BD81A34MUV-M) (BD81A34EFV-M) W×L×H W×L×H 5.0 ×5.0 ×1.0 9.7 ×6.

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Datasheet Details

Part number BD81A34MUV-M
Manufacturer ROHM
File Size 1.11 MB
Description 4ch White LED Driver
Datasheet download datasheet BD81A34MUV-M Datasheet

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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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Datasheet 4ch White LED Driver with Buck-Boost (32 LED Maximum) BD81A34MUV-M BD81A34EFV-M General Description BD81A34MUV-M/EFV-M is a white LED driver with the capability of withstanding high input voltage (35V Max). This driver has 4ch constant-current drivers integrated in 1-chip, where each channel can draw up to 120mA (Max), which is also suitable for high illumination LED drive. Furthermore, a buck-boost current mode DC/DC controller is also integrated to achieve stable operation during power voltage fluctuation. Light modulation (dimming function) is possible by PWM input. Key Specifications Operating Input Voltage Range Output LED Current Accuracy DC/DC Oscillation Frequency Operating Temperature Range LED Maximum Output Current 4.5 to 35 V ±3.