BD81A04AMUV-M

Datasheet 4ch White LED Driver with Buck-Boost and Built-in FET (32 LED Maximum) BD81A04AMUV-M General Description BD81A04AMUV-M/EFV-M is a white LED driver with the capability of withstanding high input voltage (40V 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. The Nch MOSFET for power surge is also integrated in the chip, thereby saving spaces of board sets. BD81A04AEFV-M 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 ±3.0%@50mA 200 to 2200kHz -40 to +125℃ 120mA/ch Package W(Typ) x D(Typ) x H(Max) 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 VQFN28SV5050 BD81A04AMUV-M 5.00mm x 5.00mm x 1.00mm HTSSOP-B28 BD81A04AEFV-M 9.70mm x 6.40mm x 1.00mm Application Audio Display, Small and Medium type LCD P...