BD81A24EFV-M
4ch White LED Driver with Buck-Boost (40 LED Maximum)
BD81A24EFV-M
4ch White LED Driver with Buck-Boost (40 LED Maximum)
BD81A24EFV-M / BD81A24MUV-M (VQFN28SV5050 package) 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 (10,000:1 @100Hz dimming function) is possible by PWM input.
Product Detail
Functional Safety:
Specifications:
Topology
Buck-Boost
Vin(Min.)[V]
4.5
Vin(Max.)[V]
35
Total Output Current (Max.)[mA]
480
Per Channel Drive(Max.)[mA]
120
Number of Outputs
4
Vout(Max.)[V]
40
Switching Frequency (Max.)[MHz]
2.2
Integrated Switching FET
Yes
Dimming
PWM
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
125
Package Size [mm]
9.7x6.4 (t=1)
Common Standard
AEC-Q100 (Automotive Grade)
Features:
- Integrated Buck-Boost Current Mode DC/DC Controller
- Integrated 4ch Current Driver for LED Drive
- 10,000:1 PWM Dimming @100Hz
- External Switching Frequency Synchronization
- Built-In Protection Function (UVLO, OVP, OCP, SCP)
- LED Abnormality Detection Function (Open/Short)
- Integrated VOUT Discharge Function (Buck-Boost or Buck Structure Limitation)
- AEC-Q100 Qualified (Grade 1)
