NCV78763 Datasheet, PDF (1/49 Pages) ON Semiconductor – Power Ballast and Dual LED Driver

NCV78763
Power Ballast and Dual LED
Driver for Automotive Front
Lighting 2^nd Generation
The NCV78763 is a single−chip and high efficient smart Power
ballast and Dual LED DRIVER designed for automotive front lighting
applications like high beam, low beam, daytime running light (DRL),
turn indicator, fog light, static cornering and so on.
The NCV78763 is a best fit for high current LEDs and provides a
complete solution to drive two strings up to 60 V, by means of two
internal independent buck switch channel outputs, with a minimum of
external components. For each individual LED channel, the output
current and voltage can be customized according to the application
requirements. An on−chip diagnostic feature for automotive front
lighting is provided, easing the safety monitoring from the
microcontroller. 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 NCV78763 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.
Due to the SPI programmability, one single hardware setup can support
multiple system configurations for a flexible platform solution approach.
Features
• Single Chip Boost−Buck Solution
• Two LED Strings up to 60 V
• High Current Capability up to 1.6 A DC per Output
• High Overall System Efficiency
• Minimum of External Components
• Active Input Filter with Low Current Ripple from Battery
• Integrated Switched Mode Buck Current Regulator
• Integrated Boost Current−mode Controller
• Programmable Input Current Limitation
• Average Current Regulation Through the LEDs
• High Operating Frequencies to Reduce Inductor Sizes
• Integrated PWM Dimming with Wide Frequency Range
• Low EMC Emission for LED switching and dimming
• SPI Interface for Dynamic Control of System Parameters
• These are Pb−Free Devices
Typical Applications
• Front Lighting High Beam and Low Beam
• Day time Running Light (DRL)
• Position or Park light
• Turn Indicator
• Fog Light and Static Cornering
www.onsemi.com
SSOP36 EP
CASE 940AB
1 32
QFN32 7x7
CASE 485J
1 32
QFN32
CASE 488AM
MARKING DIAGRAMS
NV78763−x
AWLYYWWG
SSOP36
1
N78763−x
AWLYYWWG
QFN32
A
= Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
G
= Pb−Free Package
ORDERING INFORMATION
See detailed ordering, marking and shipping information on
page 46 of this data sheet.
© Semiconductor Components Industries, LLC, 2015
1
February, 2015 − Rev. 3
Publication Order Number:
NCV78763/D