Atgriezties STMicroelectronics

STMicroelectronics VNF1248F High-Side Switch Controller

STMicroelectronics VNF1248F High-Side Switch Controller offers a power MOSFET in a high-side configuration. The STMicro VNF1248F is developed for implementing an intelligent high-side switch in 12V, 24V, and 48V automotive applications. The control IC is interfaced to a host microcontroller via a 3.3V and 5V CMOS-compatible SPI interface and supplies protection and diagnostics for the system.

Features

  • AEC-Q100 qualified
  • General
    • High-side switch control IC with e-fuse protection for automotive 12V, 24V, and 48V applications
    • 32-bit ST-SPI interface compatible with 3.3V and 5V CMOS level
    • 2-stage charge pump
    • Gate drive for an external MOSFET in high-side configuration
    • High precision uni-directional current sense through an external high side shunt resistor
    • Input for an NTC resistor to monitor the external MOSFET temperature
    • Very low standby current
    • Device configuration lockout by a dedicated digital input pin
    • Integrated ADC for TJ, VNTC, VOUT, VSENSE conversion
    • Fast ADC for VDS, VSENSE conversion
    • CCM: capacitive charging mode
    • A few times programmable non-volatile memory (FTP NVM) embedded for the customer sector program/erase/read
    • Direct input pin for hardware control of the external MOSFET gate pin
    • Package QFN32L 5x5 package with wettable flanks
  • Protections
    • Battery undervoltage shutdown
    • External MOSFET desaturation shutdown configurable via SPI
    • Hard short circuit latch-off configurable via SPI
    • Current vs time latch-off configurable via SPI (fuse-emulation)
    • Device overtemperature shutdown
    • External MOSFET overtemperature shutdown
    • Reverse battery
    • Loss of GND

Applications

  • Specially intended for Automotive power distribution applications
  • Intelligent high-current fuse replacement for automotive applications

Specifications

  • 70V maximum transient supply voltage
  • 6V to 60V operating voltage range
  • 6V to 70V operating voltage range (extended)
  • 75µA standby current (max.)
  • 3V to 5.5V SPI I/O supply voltage
  • 5µA SPI standby current (max.)

Board

STMicroelectronics EV-VNF1248F Evaluation Board

Integrates a high-side switch controller with intelligent fuse protection into prototype circuitry.

Learn Moreabout STMicroelectronics EV-VNF1248F Evaluation Board View Productsrelated to STMicroelectronics EV-VNF1248F Evaluation Board

Block Diagram

Block Diagram - STMicroelectronics VNF1248F High-Side Switch Controller

COMPLETE YOUR DESIGN

STMicroelectronics Standard Products

A broad range of drop-in replacements for general-purpose analog ICs, discretes, and serial EEPROMs.

Learn Moreabout STMicroelectronics Standard Products View Productsrelated to STMicroelectronics Standard Products
Publicēts: 2025-09-30 | Atjaunināts: 2025-10-09