BD18345EFV-M
Constant Current Controller for Automotive LED Lamps

BD18345EFV-M is 70 V-withstanding constant current controller for automotive LED lamps. It is able to drive at maximum 10 rows of PNP transistors. It can also contribute to reduction in the consumption power of the set as it has the built-in standby function. The IC provides high reliability because it has two Current de-rating function, LED open detection, short circuit protection, over voltage mute function and LED failure input/output function.

Product Detail

 
Part Number | BD18345EFV-ME2
Status | Recommended
Package | HTSSOP-B20
Unit Quantity | 2500
Minimum Package Quantity | 2500
Packing Type | Taping
RoHS | Yes

Functional Safety:

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

Specifications:

Common Standard

AEC-Q100 (Automotive Grade)

Topology

Constant Current

Series

LED Source Driver (Controller)

LED Configuration

1 to 10

Dimming

PWM

Vout(Max.)[V]

70.0

LED Open Detection

Yes

Vin(Min.)[V]

4.5

Vin(Max.)[V]

19.0

Operating Temperature (Min.)[°C]

-40

Operating Temperature (Max.)[°C]

125

Package Size [mm]

6.5x6.4 (t=1)

Features:

  • AEC-Q100 Qualified(Grade1)
  • PWM Dimming Function
  • PWM Signal Output
  • LED Current DC Dimming
  • Thermal De-rating Function
  • LED Open Detection
  • Short Circuit Protection (SCP)
  • Over Voltage Mute Function (OVM)
  • Disable LED Open Detection Function at Reduced-Voltage
  • LED Failure Input/Output Functions (PBUS)

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

Technical Articles

Schematic Design & Verification

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

Thermal Design

  • What Is Thermal Design
  • Method for Calculating Junction Temperature from Transient Thermal Resistance Data
  • Thermal Resistance

Tools

2D/3D/CAD

  • HTSSOP-B20 Footprint / Symbol
  • HTSSOP-B20 3D STEP Data
  • BD18345EFV-M Footprint / Symbol

Packaging & Quality

Manufacturing Data

  • Factory Information

Environmental Data

  • REACH SVHC Non-use Declaration