Automotive Multi-Output Power Management IC (PMIC) for Safety Applications

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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.

  • Safety Applications
  • ADAS (Advanced Driver Assistance Systems)
  • Body Electronics
  • Telematics
  • Automotive
  • 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)
  • These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant

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NCV97400MW00R2G

Active

Pb

A

H

P

QFNW-32

1

260

REEL

5000

Y

Step-Down

Current Mode

4.1

40

5

3

80-85

2000

$4.0404

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