NCV7680: LED Driver for Automotive LED Rear Combination Lamps

Datasheet: Linear Current Regulator and Controller for Automotive LED Rear Combination Lamps
Rev. 6 (198.0kB)
Product Overview
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The NCV7680 consists of eight linear programmable constant current sources. The part is designed for use in the regulation and control of LED based Rear Combination Lamps for automotive applications. System design with the NCV7680 allows for two brightness levels, one for stop and one for tail illumination, or optional PWM control can also be implemented.
Discrete LED brightness levels are easily programmed (stop current value, tail duty cycle value) optional external ballast FET allows for power distribution on designs requiring high currents. Set back power limit reduces the drive current during overvoltage conditions. This is most useful for low current applications when no external FET is used.
Features   Benefits
  • Constant Current Outputs for LED String Drive
  • LED devices are best controlled with current drive due to their exponential voltage characteristics
  • LED Drive Current up to 75mA per Channel
  • Sufficient drive for most popular low current LED devices
  • Open LED String Diagnostic with Open-Drain Output
  • System functionality back to the microprocessor
  • Slew Rate Control
  • Eliminates EMI concerns
  • Low Dropout Operation
  • Maintains functionality during drops in automotive battery voltage
  • External Modulation Capable
  • Flexible for many system operation setups
  • On-chip 1 kHz Tail PWM Dimming
  • Simplifies system design.
  • Stop Current Set Point programmability
  • Easy programmability with one resistor
  • Tail Dimming Set Point programmability
  • Easy programmability with one resistor
  • Overvoltage Set Back Power Limitation
  • Keeps IC temperature lower at extended voltage range.
  • Pb-Free
  • Meets lead free regulations
Applications   End Products
  • Automotive Rear Combination Lamps
  • Daytime Running Lights
  • Fog Lights
  • Center High Mounted Stop Lamps
  • Turn Signal and Other Externally Modulated Applications
  • LCD Backlighting
  • Lighting Module
Budgetary Price/Unit
Case Outline
NCV7680PWR2G Last Shipments
AEC Qualified
PPAP Capable
Halide free
NCV7680 SOIC-16 WB EP 751AG 1 260 Tape and Reel 1000  
Market Leadtime (weeks) : Contact Factory
FutureElectronics   (2020-08-19 00:00) : >1K
ON Semiconductor   (2020-09-02 00:00) : 45,000
Case Outlines
NCV7680: LED Driver for Automotive LED Rear Combination Lamps
NCV7680: LED Driver for Automotive LED Rear Combination Lamps
Previously Viewed Products
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New Products

NCV7691  NCV7692  Current Controllers for Automotive LED Lighting

  • Constant current output for LED string drive
  • Dedicated dimming feature via PWM input
  • Multiple LED string control with one controller

NCV7683  8-Channel Linear Current Driver for Automotive LED Lighting

  • Eight current sources with global current setting up to 100 mA and diagnostics
  • Global PWM duty cycle setting or configurable sequencing
  • Works standalone without MCU and with optional external MOSFET ballast transistor

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