NCV7680 Datasheet, PDF (1/20 Pages) ON Semiconductor – Linear Current Regulator and Controller for Automotive LED Rear Combination Lamps

NCV7680
Linear Current Regulator
and Controller for
Automotive LED Rear
Combination Lamps
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
• Constant Current Outputs for LED String Drive
• LED Drive Current up to 75 mA per Channel
• Open LED String Diagnostic with Open−Drain Output
• Slew Rate Control Eliminates EMI Concerns
• Low Dropout Operation for Pre−Regulator Applications
• External Modulation Capable
• On−chip 1 kHz Tail PWM Dimming
• Single Resistor for Stop Current Set Point
• Single Resistor for Tail Dimming Set Point
• Overvoltage Set Back Power Limitation
• AEC Q100 Qualified
• 16 Lead SOICW Exposed Pad
• This is a Pb−Free Device
Applications
• Rear Combination Lamps (RCL)
• Daytime Running Lights (DRL)
• Fog Lights
• Center High Mounted Stop Lamps (CHMSL) Arrays
• Turn Signal and Other Externally Modulated Applications
• LCD Back Lighting
http://onsemi.com
MARKING
DIAGRAM
SOIC−16 WB
PW SUFFIX
CASE 751AG
V7680
AWLYYWWG
A = Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
G = Pb−Free Device
ORDERING INFORMATION
Device
Package
Shipping^†
NCV7680PWR2G SOIC−16WB
1000 /
(Pb−Free) Tape & Reel
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
© Semiconductor Components Industries, LLC, 2010
1
January, 2010 − Rev. 1
Publication Order Number:
NCV7680/D