VNF1248F datasheet(1/79 Pages) STMICROELECTRONICS

Part #	VNF1248F

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

PDF	79 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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Features

Maximum transient supply voltage

VS

70 V

Operating voltage range

VS

6 V to 60 V

Operating voltage range (extended)

VS

6 V to 70 V

Standby current (max.)

IS_Q

75 µA

SPI I/O supply voltage

VSPI

3 V to 5.5 V

SPI standby current (max.)

I_STBY

5 µA

•

AEC-Q100 qualified

•

General

–

High-side switch control IC with e-fuse protection for automotive 12 V,

24 V and 48 V applications

–

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 current sense through an external high

side shunt resistor

–

Input for a NTC resistor to monitor the external MOSFET temperature

–

Very low standby current

–

Device configuration lock out by a dedicated digital input pin

–

Integrated ADC for TJ, VNTC, VOUT, VSENSE conversion

–

Fast ADC for VDS, VSENSE conversion

–

CCM: capacitive charging mode

–

Few times programmable non-volatile memory (FTP NVM) embedded

for customer sector program/erase/read

–

Direct input pin for hardware control of external MOSFET gate pin

–

Package QFN32L 5x5 package with wettable flanks

•

Protections

–

Battery undervoltage shut-down

–

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

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External MOSFET overtemperature shutdown

–

Reverse battery

–

Loss of GND

Application

•

Specially intended for Automotive power distribution applications

•

Intelligent high current fuse replacement for automotive applications

QFN32L 5X5 mm

Product status

VNF1248F

Product summary

Order code

VNF1248FTR

Package

QFN32L

Packing

Tape and reel

High-side switch controller with intelligent fuse protection for 12 V, 24 V and 48 V

automotive applications

VNF1248F

Datasheet

DS14109 - Rev 7 - August 2025

For further information, contact your local STMicroelectronics sales office.

www.st.com

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