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4ch White LED Driver with Buck-Boost (40 LED Maximum) - BD81A44MUV-M

BD81A44MUV-M / BD81A44EFV-M (HTSSOP-B28 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.

Part Number | BD81A44MUV-ME2
Status | Active
Package | VQFN28SV5050
Unit Quantity | 2500
Minimum Package Quantity | 2500
Packing Type | Taping
RoHS | Yes

Specifications:

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

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)