DC-DC LED Drivers | NCV78902

High Efficiency 2 Phase Booster LED Driver for Automotive Front Lighting

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The NCV78902 is a single-chip and high efficient 2 phase Booster LED Driver designed for automotive front lighting applications like high beam, low beam, DRL (daytime running light), turn indicator, fog light, static cornering, etc. The NCV78902 is in particular designed for high current LEDs and provides a complete solution to drive two LED strings of up-to 60V with minimum of external components.

The device integrates a current−mode voltage booster controller, realizing a unique input current filter with a limited BOM. The available output voltage can be customized. Two devices NCV78902 can be combined and the booster circuits can operate together to function as a multiphase booster (2−phase, 3−phase, 4−phase) in order to further optimize the filtering effect of the booster and allow cost effective dimensioning for mid to high power LED systems.

Thanks to the SPI programmability, one single hardware configuration can support various application platforms.

  • High Beam
  • Low Beam
  • Turn Indicator
  • DRL
  • Position light
  • Adaptive Driving Beam
  • Pixel Applications
  • Fog and Static Cornering
  • Park light

  • Automotive

  • Single Chip 2 Phase Booster Solution
  • 2 Phase Current-mode Boost Controller
  • Current Sensing on Shunt Resistors or MOSFETs’ RDSon
  • Active Input Filter with Low Current Ripple from Battery
  • Low EMC Emission for LED Switching and Dimming
  • High Overall Efficiency
  • Minimum of External Components
  • High Operating Frequencies to Reduce Inductor Sizes
  • 4 MHz SPI Interface for Dynamic Control of System Parameters
  • Fail Safe Operation (FSO) and Stand-Alone Modes Available
  • ASIL B compliant; AEC−Q100 Qualified and PPAP Capable

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NCV78902DE0R2G

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CAD Model

Pb

A

H

P

TSSOP-16 WB

948

3

260

REEL

4000

F

Step-Up/Step-Down/SEPIC

3

60

62

NA

400

$0.937

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