High Efficiency Synchronous Triple Buck LED Driver for Automotive Front Lighting

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Overview

The NCV78935 is high efficient Synchronous 3 channel Buck LED Drivers designed for automotive front lighting applications like High beam, low beam, DRL (daytime running light), turn indicator, fog light, static cornering, etc. The NCV78935 is in particular Designed for high current LEDs and provides a complete solution to drive three LED strings of up-to 60 V with minimum of External components.

When more LED channels are required on one module, more NCV78925 or NCV78935 devices can be combined, also together with NCV78964 or NCV78902 devices which incorporate the booster circuits with possibility to operate in multiphase-mode. This Helps to further optimize a 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 or Park light
  • Fog and Static Cornering
  • Adaptive Driving Beam, Pixel Applications

  • Automotive Headlamp
  • Industrial lamps

  • Single Chip Synchronous Tripple Buck Solution
  • Stand−Alone/Limp Home Mode
  • 3 independent LED Strings up-to 60 V
  • Switched Mode Synchronous Bucks with Average Current Regulation through the LEDs, Programmable Buck Frequency
  • High Current Capability 1.6 A per Output
  • Independent Supply Voltage for Each Buck Channel
  • Integrated Hi-accuracy Current Sensing
  • Minimum of External Components
  • Low EMC Emission
  • High Operating Frequencies to Reduce Inductor Size – up to 2 Mhz
  • 4 MHz SPI Interface for Dynamic Control of System Parameters
  • 48 V Battery System Compliant
  • ASIL B Compliant; AEC−Q100 Qualified and PPAP Capable
  • This Device is Pb-Free, Halide Free and are RoHS Compliant

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NCV78935PA0R2G

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CAD Model

Pb

A

H

P

TSSOP38 EP 9.7x4.4

3

260

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2500

No

Step-Down

4.5

66

66

1600

400

$1.9208

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