BD83A14EFV-M

White LED Driver for Automotive with 4ch Current Driver Integrated, Built-in MOS for Boost DC/DC Controller
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BD83A14EFV-M

BD83A14EFV-M
White LED Driver for Automotive with 4ch Current Driver Integrated, Built-in MOS for Boost DC/DC Controller

This IC is a white LED driver for LCD backlight. It has 4ch current drivers for LED drive, making it ideal for high brightness LED drive. LED pin maximum voltage is 50V, making it suitable for driving medium LCD panels. The dimming is controlled by the PWM signal and can be set up to 20,000: 1@100Hz. It also supports analog dimming and can accommodate even higher brightness ranges by combining with PWM dimming. DC/DC converters can be controlled for boost applications, and the input operating voltage range is 4.5V to 48.0V.

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Product Detail

 
Part Number | BD83A14EFV-ME2
Status | Recommended
Package | HTSSOP-B24
Unit Quantity | 2000
Minimum Package Quantity | 2000
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.
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Specifications:

Topology

Boost

Vin(Min.)[V]

4.5

Vin(Max.)[V]

48

Total Output Current (Max.)[mA]

600

Per Channel Drive(Max.)[mA]

150

Number of Outputs

4

Vout(Max.)[V]

50

Switching Frequency (Max.)[MHz]

2.42

Dimming

DC / PWM

Operating Temperature (Min.)[°C]

-40

Operating Temperature (Max.)[°C]

125

Package Size [mm]

7.8x7.6 (t=1)

Common Standard

AEC-Q100 (Automotive Grade)

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Features:

  • AEC-Q100 Qualified (Grade 1)
  • Functional Safety Supportive Automotive Products
  • Built-in 4ch Current Driver for LED Driver
  • Current Mode Boost DC/DC Converter
  • Load Switch (M1) Control Pin
  • DC Dimming Function by Pulse Input
  • PWM Dimming
    (20,000: 1@100Hz, 100Hz to 25kHz)
  • Spread Spectrum Function
  • DC/DC Converter Oscillation Frequency External Synchronization Function
  • LSI Protect Functions (UVLO, OVP, TSD, OCP)
  • LED Anode/Cathode Short Circuit Protection Function
  • LED Open/Short Protection Function

Supporting Information

 

Overview

These products leverage proprietary low power consumption technology to reduce losses in LED driver current control circuits. The result is 20% lower overall IC power consumption compared to conventional products under typical conditions (80mA/ch LED circuit current, 12V power supply). This contributes to lower power consumption in medium- to large-sized automotive displays where power consumption is an issue.

At the same time, all models are equipped with both DC and PWM dimming to meet a wide range of requirements. As there no longer exists a need to switch current feedback mode for low/high brightness change with ROHM’s original seamless PWM dimming technology, flickering that occurs with general PWM dimming is reduced, improving system reliability.

Low Power Consumption Technology
Seamless PWM Dimming

Application Examples

• Instrument clusters
• Car infotainment
• Head-up displays (HUDs)
• Electronic mirrors (side/rear view)

Compatible with a wide range of display sizes from 5-inch to 10+ inch class.

Application

Reference Design / Application Evaluation Kit

 
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