Sustaining up to 4 A continuous current over a wide operating input voltage range of 8 V to 48 V, with low insertion loss thanks to its integrated low-RDS(ON) VIPower MOSFET, the STEF01 programmable electronic fuse from STMicroelectronics extends the benefits of fast-acting overload protection to applications at higher power ratings.
When connected in series to the main power rail, the device protects the load against over-current and over-voltage. The voltage is clamped to a user-defined maximum, preset with external resistors. Excessive current is restricted to the programmed safe limit by controlling the internal power MOSFET, and folds back to a lower limit if a strong over-current or short circuit is detected.
The STEF01 leverages ST’s BCD8 high-voltage process to integrate features including dV/dt control to prevent excessive inrush current during startup or hot-swap insertion. This slows the output voltage ramp-up time to at least 3 ms, which can be increased if desired by connecting an external capacitor. Programmable under-voltage lockout (UVLO), also set using external components, allows the user to fine-tune the desired voltage rail minimum value to suit the load requirements.
Further features include thermal shutdown with latching or auto-retry, and maximum dissipated-power protection, which each prevent exceptionally high power from damaging the STEF01 when starting up into heavy capacitive loads, or during large load transients or short-circuits at high voltage. There is also a power-good indicator and an enable/fault pin that can be used as either a status monitor or to control the device. A dedicated gate-driver output for controlling an external N-channel MOSFET simplifies implementation of reverse-current protection.
The STEF01 delivers protection for a wide range of applications, including industrial hot-swap boards and control equipment, circuit breakers, power buses, security or lighting systems, telecom power modules, or distributed power systems. It is available now in a 14-pin HTSSOP14 package.
Ryzen-based computer on module Altron Arrow
AI & ML
SolidRun announced the launch of its new Ryzen V3000 CX7 Com module, configurable with the eight-core/16-thread Ryzen Embedded V3C48 processor.
Read more...Robust and customisable SBC Altron Arrow
DSP, Micros & Memory
Pairing the powerful i.MX8M Plus System on Module (SoM) from SolidRun, which features the i.MX 8M Plus SoC from NXP, this high-performance SBC is set to transform industrial environments.
Read more...New family supports future cryptography Altron Arrow
DSP, Micros & Memory
NXP has introduced its new i.MX 94 family, which contains an i.MX MPU with an integrated time-sensitive networking (TSN) switch, enabling configurable, secure communications with rich protocol support in industrial and automotive environments.
Read more...NXP’s all-purpose microcontroller series Altron Arrow
DSP, Micros & Memory
NXP has released its MCX A14x and A15x series of all-purpose microcontrollers which are part of the larger MCX portfolio that shares a common Arm Cortex-M33 core platform.
Read more...Non-terrestrial network module Altron Arrow
Telecoms, Datacoms, Wireless, IoT
Fibocom unveiled its MA510-GL (NTN), a non-terrestrial networks module which is compliant with 3GPP Release 17 standard.
Read more...Cellular IoT connectivity via satellite Altron Arrow
Telecoms, Datacoms, Wireless, IoT
The Telit Cinterion cellular LPWA module will enable satellite data communication using the NB-IoT protocol, without any special hardware changes required for the integration of the cellular module in the customer application.
Read more...Low noise 3-axis MEMS accelerometers Altron Arrow
DSP, Micros & Memory
The ADXL357 and ADXL357B from Analog Devices are digital outputs, low noise density, low 0 g offset drift, low power, three-axis accelerometers with selectable measurement ranges.
Read more...Infineon launches Edge Ai software solution Altron Arrow
Analogue, Mixed Signal, LSI
Infineon has introduced DEEPCRAFT, a new software solution category brand for Edge AI and machine learning, after the company recognised the huge potential of Edge AI for the market.
Read more...Cree: Illuminating the future of LED technology Altron Arrow
Editor's Choice Opto-Electronics
As a pioneer in this field, Cree LED has been instrumental in shaping the LED landscape, driving innovation and performance in this sector.
printer friendly version