Multiphase Booster LED
Driver for Automotive Front
Lighting
NCV78702
The NCV78702 is a single−chip and high efficient booster for smart
Power ballast and LED Driver designed for automotive front lighting
applications like high beam, low beam, DRL (daytime running light),
turn indicator, fog light, static cornering, etc. The NCV78702 is in
particular designed for high current LEDs and with NCV78723 (dual
channel buck)/713 (single channel) provides a complete solution to
drive multiple LED strings of up−to 60 V. It includes a current−mode
voltage boost controller which also acts as an input filter with a
minimum of external components. The available output voltage can be
customized. Two devices NCV78702 can be combined and the booster
circuits can operate together to function as a multiphase booster
(2−phase, 3−phase, 4−phase) in order to further optimize the filtering
effect of the booster and lower the total application BOM cost for
higher power. Thanks to the SPI programmability, one single
hardware configuration can support various application platforms.
www.onsemi.com
20
1
24
1
QFN24
TSSOP20
DE SUFFIX
CASE 948AB
MW SUFFIX
CASE 485L
MARKING DIAGRAMS
N702−0
ALYWG
G
N702−0
ALYWG
G
Features
• Single Chip
• Multiphase Booster
• High Overall Efficiency
N702
= Specific Device Code
= Assembly Location
= Wafer Lot
A
L
Y
W
G
• Minimum of External Components
• Active Input Filter with Low Current Ripple from Battery
• Integrated Boost Controller
= Year
= Work Week
= Pb−Free Package
• Programmable Input Current Limitation
• High Operating Frequencies to Reduce Inductor Sizes
• PCB Trace for Current Sense Shunt Resistor is Possible
• Low EMC Emission
• SPI Interface for Dynamic Control of System Parameters
• Fail Save Operating (FSO) Mode, Stand−Alone Mode
• Integrated Failure Diagnostic
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information on page 31 of
this data sheet.
Typical Applications
• High Beam
• Low Beam
• DRL
• Position or Park Light
• Turn Indicator
• Fog
• Static Cornering
© Semiconductor Components Industries, LLC, 2016
1
Publication Order Number:
February, 2020 − Rev. 2
NCV78702/D