DC-DC LED Drivers | NCV78964

High Efficiency Single-chip 2 Phase Booster and Synchronous Dual Buck LED Driver for Automotive Front Lighting

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Overview

The NCV78964 is a single-chip and high efficient 2 phase Booster and Synchronous Dual-Channel Buck 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 NCV78964 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. When more than two LED channels are required on one module, then two, three or more NCV78964 devices can be combined, with the possibility for the booster circuits to operate in multiphase−mode. This helps to further optimize the filtering effect of the booster circuit and allows 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 2 Phase Booster and Synchronous Dual Buck Solution
  • Stand−Alone/Limp Home Mode
  • 2 LED Strings up-to 60V, High Current Capability 1.6 A per Output
  • Switched Mode Synchronous Bucks with Average Current Regulation through the LEDs, Programmable Buck Frequency
  • Independent Supply Voltage for Each Buck Channel
  • Buck Constant Voltage Mode Available
  • Booster Shunt-less Operation
  • Built−in Programmable Booster Soft−Start
  • Superior Stability and Response Time
  • Designed for Small Booster Output Capacitor
  • 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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NCV78964PA0R2G

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CAD Model

Pb

A

H

P

TSSOP38 EP 9.7x4.4

137AB

3

260

REEL

2500

No

Step-Up/Step-Down

4.5

70

70

1600

400

$2.0633

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NCV78964PA1R2G

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Active, New

CAD Model

Pb

A

H

P

TSSOP38 TEP 9.7x4.4

948BX

3

260

REEL

2500

No

Step-Up/Step-Down

4.5

70

70

1600

400

$2.0633

More Details

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