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4ch White LED Driver with Buck-Boost (40 LED Maximum) - BD81A44MUV-MBD81A44MUV-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 (5000:1 dimming function) is possible by PWM input.
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| BD81A44MUV-ME2 | Active | VQFN28SV5050 | 2500 | 2500 | Taping | sim |
especificações:
| Topology | Buck-Boost |
| Number of Outputs | 4 |
| Vin(Min.)[V] | 4.5 |
| Vin(Max.)[V] | 35.0 |
| Output Current(Max.)[mA] | 480.0 |
| Frequency(Max.)[MHz] | 2.2 |
| LED Configuration | 4 x 8 |
| Dimming | PWM |
| Operating Temperature (Min.)[°C] | -40 |
| Operating Temperature (Max.)[°C] | 125 |
características:
- Integrated Buck-Boost current mode DC/DC controller
- Integrated 4ch current driver for LED drive
- 5000:1 PWM dimming @200Hz
- 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
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