NCV7685: 12 Channels 60 mA LED Linear Current Driver I2C Controllable for Automotive Applications

Datasheet: 12 Channels 60 mA LED Linear Current Driver I2C Controllable for Automotive Applications
Rev. 2 (240kB)
Product Overview
View Material Composition
Product Change Notification
The NCV7685 consists of twelve linear programmable constant current sources with common reference. The part is designed for use in the regulation and control of LED for automotive applications. The NCV7685 allows 128 different duty cycle levels adjustable using pulse width modulation (PWM) independently for each output channel programmable via I2C serial interface. PWM frequency can be chosen in four different configurations up to 1200 Hz. The device can be used with micro−controller applications using the I2C bus or in stand−alone applications where a choice could be done in between 2 different static configuration settings. The IC also provides 3.3 V voltage reference to the application for loads up to 1 mA. LED brightness level is easily programmed using an external resistor. Each channel has an internal circuitry to detect open−load conditions with an optional auto−recovery mode. If one driver is in open−load condition, all other channels could be turned off according to the programmable bit setting. The device is available in small body size SSOP24−EP package.
Features
 
  • 12 Common Current Programmable Sources up to 60 mA
  • Independent PWM Duty Cycle Control for each Channel via PC
  • Common PWM Duty Cycle Control via I2C
  • On−Chip 150, 300, 600 and 1200 Hz PWM
  • Open LED String Diagnostics
  • Low Dropout Operation for Pre−Regulator Applications
  • Single Resistor for Current Set Point
  • Voltage Reference 3.3 V/1 mA
  • 8 Bits I2C Interface with CRC8 Error Detection
  • OTP Bank for Stand−Alone Operation (2 Configurations)
  • Output Enable Pin
  • Detection and Protection Against Open Load and Under−Voltage
  • Over Temperature Detection and Protection
  • Low Emission with Spread Spectrum Oscillator
  • NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP Capable
  • SSOP24−EP Packaging
Applications   End Products
  • Entry Level LED Tail Lights. NCV7685 used without MCU
  • Option Level LED Tail Lights with Sequential Turn Indicator. NCV7685 controlled by Low End MCU
  • High End Pixelized LED Tail Light with Full Animation Capabilities
  • Turn Signal and Other Externally Modulated Applications
  • RGB LED driver (4 x RGB per NCV7685)
  • Dashboard Applications
 
  • Exterior Lighting (Low Power)
  • Interior Lighting
Evaluation/Development Tool Information
Product Status Compliance Short Description Action
NCV7685BCMR1GEVK Active
Pb-free
NCV7685 BCM Module
NCV7685HIGH1GEVK Active
Pb-free
NCV7685 HIGH-END EVB/REF Kit
NCV7685I2CV1GEVB Active
Pb-free
Twelve Channels LED Linear Current Driver with I2C Interface
NCV7685LOWR1GEVK Active
Pb-free
NCV7685 LOW-END EVB/REF Kit
NCV7685MIDR1GEVK Active
Pb-free
NCV7685 MID-END EVB/REF Kit
SECO-NCV7685RGB-GEVB Active
Pb-free
RGB LIGHTING EVB
STR-NCV7685-AUTO-LED-GEVB Active
Pb-free
Strata Enabled Automotive LED Tail Lights Evaluation Kit
Availability & Samples
Specifications
Interactive Block Diagram
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
NCV7685DQR2G Active
AEC Qualified
PPAP Capable
Pb-free
Halide free
NCV7685, 12 Channels 60 mA LED Linear Current Driver I2C Controllable for Automotive Applications SSOP-24 NB EP 940AQ 2 260 Tape and Reel 2500 $0.7415
Market Leadtime (weeks) : Contact Factory

Product
Description
Pricing ($/Unit)
Compliance
Status
VI Max (V)
IO Max (mA)
LEDs in Series, Max #
LEDs in Parallel, Max #
Package Type
NCV7685DQR2G  
 $0.7415 
Pb
A
H
P
 Active   
28
40
60
4
12
SSOP-24 NB EP
Case Outlines
940AQ   
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  • 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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