BD6142AMUV
8-Channel White LED Driver with Integrated FET for up to 80 LEDs

This IC is white LED driver IC with PWM step-up DC/DC converter that can boost max 41V and current driver that can drive max 30mA. The wide and precision brightness can be controlled by external PWM pulse. This IC has very accurate current drivers, and it has few current errors between each strings. So, it will be helpful to reduce brightness spots on the LCD panel.

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* This is a standard-grade product.
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Product Detail

 
Part Number | BD6142AMUV-E2
Status | Recommended
Package | VQFN024V4040
Unit Quantity | 2500
Minimum Package Quantity | 2500
Packing Type | Taping
RoHS | Yes

Specifications:

Topology

Boost

Number of Outputs

8

Vin(Min.)[V]

4.2

Vin(Max.)[V]

27.0

Output Current(Max.)[mA]

240.0

Per Channel Drive(Max.)[mA]

30.0

Switch Current Limit(Typ.)[A]

2.5

Vout(Max.)[V]

41.0

Frequency(Max.)[MHz]

1.6

LED Configuration

8 x 10

LDO

No

Auto Luminous Control

No

Synchronous

No

Integrated FET

Yes

Dimming

PWM / Analog

Iq(Typ.)[mA]

3.6

Ishutdown(Typ.)[µA]

1.6

Operating Temperature (Min.)[°C]

-30

Operating Temperature (Max.)[°C]

85

Package Size [mm]

4x4 (t=1)

Features:

・High efficiency PWM step-up DC/DC converter
・High accuracy & good matching current drivers 8-ch (MAX30mA/ch)
・Integrated 50V power Nch MOSFET
・Soft Start function
・Drive up to 11 LEDs in series, 8 strings in parallel
・Wide input voltage range (4.2V to 27V)
・Over-voltage protection
・External SBD open detect / Output Short protection
・Over current limit
・CH Terminal open / GND short protect
・CH over voltage protect / LED short protect
・Thermal shutdown (TSD)
・Under voltage lockout (UVLO)
・PWM dimming (200Hz to 25kHz)
・Analog dimming

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

  • VQFN024V4040 Footprint / Symbol

Packaging & Quality

Package Information

  • Package Information
  • Anti-Whisker formation

Manufacturing Data

  • Factory Information

Environmental Data

  • UL94 Flame Classifications of Mold Compound
  • Compliance with the ELV directive
  • REACH SVHC Non-use Declaration
  • RoHS Comission Delegated Directive

Export Information

  • The Export Control Order
  • Export Administration Regulations(EAR)