Product overview
Key Benefits
Smart eFuse for 12 V, 24 V and 48 V automotive power nets
Intelligent high‑side switch controller for wiring protection in automotive power distribution.
Accurate current, voltage and temperature diagnostics
Integrated ADCs monitor VSENSE, VDS, VOUT, and NTC for precise system insight.
Description
The device is an advanced controller for a 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.
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All features
- 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
- External MOSFET overtemperature shutdown
- Reverse battery
- Loss of GND
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EDA Symbols, Footprints and 3D Models
STMicroelectronics - VNF1248F
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Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Longevity Commitment | Longevity Starting Date | Material Declaration** |
|---|---|---|---|---|---|---|---|
| VNF1248FTR | Active | QFN-32L WF | Automotive | Ecopack2 | - | - | |
VNF1248FTR
Package:
QFN-32L WFMaterial Declaration**:
(**) 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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Sample & Buy
| Part Number | Marketing Status | Budgetary Price (US$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating Temperature (°C) (min) | Operating Temperature (°C) (max) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| VNF1248FTR | | | distributors No availability of distributors reported, please contact our sales office |
VNF1248FTR Active
(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors