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4ch White LED Driver Built-in Current Driver Buck-Boost and Boost DC/DC Controller for Automotive - BD81A74MUV-M (New)

BD81A74MUV-M / BD81A74EFV-M (HTSSOP-B28 package) is a white LED driver with the capability of withstanding high input voltage (maximum 35V). This driver has 4ch constant-current drivers in 1-chip, where each channel can draw up to 120mA (Max), and it is suitable for high illumination LED drive. Furthermore, a buck-boost current mode DC/DC controller is also built to achieve stable operation during power voltage fluctuation. Light modulation (10,000:1@100Hz dimming function) is possible by PWM input.

Part Number | BD81A74MUV-ME2
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

Vout(Max.)[V]

40.0

Frequency(Max.)[MHz]

2.2

LED Configuration

4

Integrated FET

No

Dimming

PWM

Operating Temperature (Min.)[°C]

-40

Operating Temperature (Max.)[°C]

125

Features:

  • AEC-Q100 Qualified(Grade 1)
  • 4ch Current Driver for LED Drive
  • Buck-Boost Current Mode DC/DC Controller
  • 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 Limitation)