VNF1048F

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High-side switch Controller with intelligent fuse protection for 12 V, 24 V and 48 V automotive applications

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Product overview

Description

The VNF1048F is an advanced controller for Power MOSFET in high-side configuration, designed for the implementation of an intelligent high-side switch for 12 V, 24 V, and 48 V automotive applications. The control IC is interfaced to a host microcontroller through a 3.3 V and 5 V CMOS-compatible SPI interface and provides protection and diagnostics to the system.

  • All features

    • AEC-Q100 qualified
    • General
      • High-side switch control IC with eFuse protection for 12 V, 24 V, and 48 V automotive applications
      • SPI secondary interface for host control
      • 32-bit ST-SPI interface compatible with 3.3 V and 5 V CMOS level
      • 2 stage charge pump
      • Gate drive for an external MOSFET in high-side configuration
      • High precision uni-directional digital current sense via SPI through an external high-side shunt resistor
      • Input for an NTC resistor to monitor the external MOSFET temperature
      • Very low standby current
      • Robust fail-safe functionality through internal and external controls
      • SPI register lock-out by a dedicated digital input pin
      • Integrated ADC for TJ, VNTC, VOUT, and VDS conversion
    • 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
    • Intelligent high current fuse replacement for automotive applications
    • Especially, intended for automotive power distribution applications

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STMicroelectronics - VNF1048F

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
VNF1048FTR
Active
QFN-32L WF Automotive Ecopack2

VNF1048FTR

Package:

QFN-32L WF

Material Declaration**:

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Marketing Status

Active

Package

QFN-32L WF

Grade

Automotive

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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VNF1048FTR
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