NCV7691 Datasheet, PDF (1/18 Pages) ON Semiconductor – Current Controller for Automotive LED Lamps

NCV7691
Current Controller for
Automotive LED Lamps
The NCV7691 is a device which uses an external NPN bipolar
device combined with feedback resistor(s) to regulate a current for use
in driving LEDs. The target application for this device is automotive
rear combination lamps. A single driver gives the user flexibility to
add single channels to multichannel systems. A dedicated dimming
feature is included via the PWM input pin. The individual driver is
turned off when an open load or short circuit is detected.
LED brightness levels are easily programmed using an external
resistor in series with the bipolar transistor. The use of the resistor
gives the user the flexibility to use the device over a wide range of
currents.
Multiple strings of LEDs can be operated with a single NCV7691
device.
Set back power limit reduces the drive current during overvoltage
conditions.
The device is available in a SOIC−8 package.
Features
• Constant Current Output for LED String Drive
• External Bipolar Device for Wide Current Range Flexibility
♦ With BCP56 Transistor, Can Drive Multiple Strings Concurrently
(ref. Datasheet Info)
• External Programming Current Resistor
• Pulse Width Modulation (PWM) Control
• Negative Temperature Coefficient Current Control Option
• Open LED String Diagnostic
• Short−Circuit LED String Diagnostic
• Multiple LED String Control
• Overvoltage Set Back Power Limitation
• SOIC−8 Package
• AEC−Q100 Qualified and PPAP Capable
• These are Pb−Free Devices
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
• General Automotive Linear Current LED Driver
www.onsemi.com
8
1
SOIC 8
CASE 751AZ
MARKING DIAGRAM
8
NCV7691
ALYW
G
1
IC (Pb−Free)
NCV7691 = Specific Device Code
A
= Assembly Location
L
= Wafer Lot
Y
= Year
W
= Work Week
G
= Pb−Free Package
PINOUT DIAGRAM
VS
SC
PWM BASE
FLTS FB
NTC GND
ORDERING INFORMATION
Device
Package
Shipping^†
NCV7691D10R2G SOIC−8
(Pb−Free)
3000 /
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, 2015
1
May, 2015 − Rev. 3
Publication Order Number:
NCV7691/D