BD81A74EFV-M
4ch 內建電流驅動器 升降壓型 車電用白色LED驅動器

BD81A74EFV-M是35V高耐壓的白色LED驅動器。1chip中內建4ch恒流輸出,高達120mA/ch,最適合高亮度LED驅動。內建對應升降壓電流模式的DC/DC控制器,對於電源電壓變動,可實現穩定的動作。可透過PWM輸入進行調光控制(10,000:1)。

Product Detail

 
料號 | BD81A74EFV-ME2
狀態 | 推薦品
封裝 | HTSSOP-B28
單位數量 | 2500
最小包裝數量 | 2500
包裝形式 | Taping
RoHS | Yes

功能安全:

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

規格:

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

功能:

  • 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)

Evaluation
Board

 
    • Evaluation Board
    • BD81A74EFV-TSB-001
    • This is an evaluation board for ROHM’s LED Driver BD81A74EFV-M. BD81A74EFV-M is a white LED driver with the capability of withstanding high input voltage (maximum 35 V). This driver has 4ch constant current drivers in 1-chip, where each channel can draw up to 120 mA (Max), and it is suitable for high illumination LED drive. Furthermore, a boost current mode DC/DC converter is also built to achieve stable operation during power voltage fluctuation.

  • User's Guide Purchase Inquiry

Design Resources

 

Documents

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

User's Guide

  • Evaluation Board User's Guide for BD81A74EFV-TSB-001

Application Note

  • Evaluation Board test report of BD81A74EFV-TSB-001

Technical Articles

Schematic Design & Verification

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

Thermal Design

  • Thermal Resistance

Tools

2D/3D/CAD

  • HTSSOP-B28 Footprint / Symbol
  • HTSSOP-B28 3D STEP Data

Packaging & Quality

Manufacturing Data

  • Factory Information

Environmental Data

  • REACH SVHC Non-use Declaration