STMicroelectronics has introduced the VNF1048F, an innovative controller tailored for power MOSFETs in high-side configurations. This cutting-edge solution is specifically engineered to facilitate the creation of intelligent high-side switches for 12 V, 24 V, and 48 V automotive applications, demonstrating STMicroelectronics' commitment to driving technological advancements in the automotive sector.
The VNF1048F stands out due to its seamless integration with host microcontrollers through a 3.3 V and 5 V CMOS-compatible serial peripheral interface (SPI). This feature not only enhances compatibility but also streamlines the overall system design, ensuring efficient and reliable operation within automotive environments.
Moreover, the VNF1048F is equipped with robust protection and diagnostic capabilities, bolstering the system's resilience and facilitating proactive maintenance. These features contribute to enhanced safety and longevity, addressing critical concerns in automotive applications where reliability is paramount.
In conclusion, STMicroelectronics' VNF1048F represents a significant leap in high-side switch control technology, offering a comprehensive solution for automotive power management. With its seamless interfacing, robust protection, and diagnostic features, this advanced controller is poised to elevate the performance and reliability of automotive systems, positioning STMicroelectronics as a key innovator in the industry.
SPI secondary interface for host control
32-bit ST-SPI compatible with 3.3 V and 5 V CMOS level
2-stage charge pump
High precision unidirectional 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
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