Datasheet
4ch White LED Driver Built-in Current Driver Buck-Boost and Boost DC/DC Converter for Automotive
BD81A74EFV-...
Datasheet
4ch White LED Driver Built-in Current Driver Buck-Boost and Boost DC/DC Converter for Automotive
BD81A74EFV-M BD81A74MUV-M
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.
Light modulation (10,000:1@100 Hz dimming Packages
W (Typ) x D (Typ) x H (Max)
function) is possible by PWM input.
VQFN28SV5050
5.0 mm x 5.0 mm x 1.0 mm
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)
...
