© Semiconductor Components Industries, LLC, 2016
March, 2019 − Rev. 0
1 Publication Order Number:
NCV97400/D
NCV97400
Automotive Multi-Output
Power Management IC
(PMIC) for Safety
Applications
Description
The NCV97400 is a 4−output monolithic regulator consisting of
3 buck regulators and 1 boost regulator with supervisory functions
including window voltage monitoring on all outputs and a window
watchdog timer. This product is ideal for ADAS (Advanced Driver
Assistance Systems) applications and utilizes an independent voltage
reference and an adjustable independent oscillator to realize the
supervisory features.
A 40 V non−synchronous buck regulator converts the battery supply
voltage to a 3.3 V output, and delivers up to 3 A (peak). This output
rail may be used as the input voltage for the 2 synchronous secondary
buck converters and the non−synchronous secondary boost converter.
Each secondary buck is adjustable and can be set from 2.5 V to 0.8 V
with 2 A peak current limit and can be supplied by up to 3.6 V from a
separate supply. The secondary boost output voltage is fixed and is
intended to supply a low current 5.0 V rail for In−Vehicle Networking
circuits (IVN).
All internal MOSFETs are N−channel devices, and bootstrap
circuits are used to drive high side MOSFETs. All 4 SMPS outputs use
peak current mode control with internal slope compensation. The IC
incorporates an internal regulator that supplies charge to the
low−voltage gate drivers.
The NCV97400 is a functional safety solution that reduces the time
required to develop safety systems that comply with the International
Standards Organization (ISO) 26262. The device includes a range of
integrated safety features such as dedicated feedback references,
output voltage monitoring, and window watchdog timer.
Features Voltage Options
• 3 Enabled Buck Converters
• 1 Boost Converter for IVN Supply
• Wide Input of 4.1 to 40 V with Undervoltage Lockout (UVLO)
• Fixed, 2 MHz Base Switching Frequency
• Pseudo−random Spread Spectrum for Improved EMI
• Window Watchdog with Independent References
• Cycle−by−cycle Current Limit Protection
• External Frequency Synchronization
• NCV Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements; AEC−Q100
Qualified and PPAP Capable
• QFN Package with Wettable Flanks (pin edge plating)
www.onsemi.com
MARKING DIAGRAM
QFNW32
CASE 484 AB
32
1
See detailed ordering, marking and shipping information on
page 26 of this data sheet.
ORDERING INFORMATION
NCV97400
AWLYYWWG
G
1
NCV97400 = Specific Device Code
A = Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
G = Pb−Free Package
(Note: Microdot may be in either location)
Typical Applications
• Safety Applications
• ADAS (Advanced Driver Assistance
Systems)
• Body Electronics
• Telematics
