BD81A74EFV-M Datasheet 4ch White LED Driver

Manufacturer: ROHM

BD81A74EFV-M 4ch white led driver by ROHM - Datasheet Preview

Datasheet Details

Part number	BD81A74EFV-M
Manufacturer	ROHM
File Size	3.82 MB
Description	4ch White LED Driver
Datasheet	BD81A74EFV-M Datasheet

General Description

Key Specifications BD81A74EFV-M / BD81A74MUV-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  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 stable operation during power voltage fluctuation.

Overview

Datasheet 4ch White LED Driver Built-in Current Driver Buck-Boost and Boost DC/DC Converter for Automotive BD81A74EFV-M BD81A74MUV-M.

Key Features

HTSSOP-B28 9.7 mm x 6.4 mm x 1.0 mm.
AEC-Q100 Qualified.
1.
4ch Current Driver for LED Drive.
Buck-Boost Current Mode DC/DC Converter.
Control DC/DC Converter Oscillation Frequency by External Synchronized Signal.
Spread Spectrum Function.
LSI Protection Function (UVLO, OVP, TSD, OCP, SCP).
LED Abnormality Detection Function (Open/Short).
VOUT Discharge Function (Buck-Boost Structure VQFN28SV5050 HTSSOP-B28 Limitation) BD81A74MUV-M BD81A74EFV-M.

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