BD81A74MUV-M
4-Kanal-Treiber für weiße LEDs, eingebauter Stromtreiber, Buck-Boost- und Boost-DC/DC-Wandler für die Automobilindustrie

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.

Produktdetails

 
Teilenummer | BD81A74MUV-ME2
Status | Empfohlen
Gehäuse | VQFN28SV5050
Einheitenmenge | 2500
Minimale Gehäusemenge | 2500
Gehäusetyp | Taping
RoHS | Ja

Funktionalen Sicherheit:

Kategorie : FS supportive
A product that has been developed for automotive use and is capable of supporting safety analysis with regard to the functional safety.

Spezifikationen:

Common Standard

AEC-Q100 (Automotive Grade)

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

Integrated FET

No

Dimming

PWM

Operating Temperature (Min.)[°C]

-40

Operating Temperature (Max.)[°C]

125

Eigenschaften:

  • 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)

Ressourcen entwerfen

 

Unterlagen

White Paper

  • Cutting-Edge Web Simulation Tool “ROHM Solution Simulator” Capable of Complete Circuit Verification of Power Devices and Driver ICs
  • ROHM Automotive Lighting Solutions

Technische Artikel

Schematic Design & Verification

  • Importance of Probe Calibration When Measuring Power: Deskew
  • Impedance Characteristics of Bypass Capacitor

Thermal Design

  • Method for Calculating Junction Temperature from Transient Thermal Resistance Data
  • Thermal Resistance

Design Tools

2D/3D/CAD

  • VQFN28SV5050 Footprint / Symbol

Packaging & Qualität

Manufacturing Data

  • Factory Information

Environmental Data

  • REACH SVHC Non-use Declaration