Product overview
Description
The device is an advanced controller for a power MOSFET in high-side configuration, designed for the implementation of two intelligent high-side switches 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
- Designed for automotive applications
- General
- Dual independent channel high-side switch control IC with eFuse protection for automotive 12 V, 24 V, and 48 V applications
- SPI slave interface for host control
- 32-bit ST-SPI interface compatible with 3.3 V and 5 V CMOS level
- 2-stage charge pump
- Dual gate drive for an external MOSFET in high-side configuration
- Back to back configuration
- High precision bidirectional digital current sense for each channel via SPI through an external high-side shunt resistor
- Input for an NTC resistor to monitor the external MOSFET temperature
- Very low standby current: 25 μA in standby mode per channel, 0 μA in deep standby mode
- Emergency stop and limp-home pins for advanced safety features
- Device configuration lockout by a dedicated digital input pin
- Integrated ADC for TJ, VNTC, VOUT, VSENSEP1, 2 and VDS 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
- BIST (current sense, VDS monitor and stuck on)
- QFN 5x5x0.9 mm 32+4L package with wettable flanks
- Protections
- Battery undervoltage shut-down configurable via SPI
- External MOSFET desaturation shutdown configurable via SPI
- Hard short circuit latch-off configurable via SPI
- Bidirectional OVL shutdown (over-load current) with a delay configurable via SPI
- I2t protection (current vs time latch-off) configurable via SPI (fuse-emulation)
- Device overtemperature shutdown
- Current sense undervoltage
- External battery (protection with external component) MOSFET overtemperature shutdown
- Reverse battery protection with external component
- Battery μcut protection with external component (compliant to LV124)
- Loss of GND
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STMicroelectronics - VNFD1248F
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Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Longevity Commitment | Longevity Starting Date | Material Declaration** |
|---|---|---|---|---|---|---|---|
| VNFD1248F | Preview Product is in design stage. EN | VFQFN 5X5X0.9 32+4L WETT. FLANKS | Automotive | Ecopack2 | - | - | |
| VNFD1248FTR | Preview Product is in design stage. EN | VFQFN 5X5X0.9 32+4L WETT. FLANKS | Automotive | Ecopack2 | - | - | |
VNFD1248F
Package:
VFQFN 5X5X0.9 32+4L WETT. FLANKSMaterial Declaration**:
VNFD1248FTR
Package:
VFQFN 5X5X0.9 32+4L WETT. FLANKSMaterial 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) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| VNFD1248F | | | distributors No availability of distributors reported, please contact our sales office | ||||||||||
| VNFD1248FTR | | | distributors No availability of distributors reported, please contact our sales office |
VNFD1248F Preview
VNFD1248FTR Preview
(*) 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