An eFuse IC (Electronic Fuse Integrated Circuit) is used to protect electronic circuits from fault circumstances such as short circuits, overvoltage, and overcurrent. It can be reset electronically without the need for physical assistance, in contrast to conventional fuses that physically "blow" and need to be replaced. The industry has grown significantly as a result of the growing use of eFuses in automotive applications, such as automotive eFuse boxes, body control modules, and different electronic subassemblies like ABS cards, engine control units, and audio and security systems. In this article, everything PE has listed some interesting eFuse ICs that were trending on the website in 2024.
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eFuse IC for IoT Applications
The LS0502SCD33 from Littelfuse is an eFuse IC that has been designed as a complete solution for systems with a backup storage capacitor or capacitor bank. It requires an input voltage of 2.5 - 5.5 V. This eFuse IC features a programmable cap voltage range from 1.1 V to 5.3 V, a programmable supercapacitor charge current, and a programmable input over-current protection. It offers a built-in cell balance to monitor the cell voltage when charging and to keep the two cells voltage at the same level. This eFuse IC is available in a surface-mount package that measures 3.10 x 3.10 x 0.80 mm and is ideal for handheld industrial equipment, dash cameras, smart meters, portable devices with removable batteries, and IoT applications. Read more.
Automotive Qualified Hot-Swap Protection IC
The MPQ5068-AEC1 from Monolithic Power Systems is an Automotive-Qualified Hot-Swap Protection IC that is designed to protect circuitry on its output from transients on its input. It requires an input voltage of 6 - 28 V. This eFuse IC features an external capacitor to control the slew rate at the output. It integrates a 7 milli-ohms power FET whose gate is driven by an internal charge pump. This AEC-Q100-qualified eFuse IC includes an IMON option to produce a voltage proportional to the current through the power device. This eFuse IC is available in a surface-mount package that measures 3 x 5 mm and is ideal for automotive systems, automotive infotainment, automotive clusters, and advanced driver assistance systems applications. Read more.
Hot Swap Controller IC for Power Monitoring Applications
The ADM1276-3ACPZ-RL from Analog Devices is a Hot Swap Controller IC that has been designed to allow a circuit board to be removed from or inserted into a live backplane. It requires an input voltage of 2.95 - 20 V. This eFuse IC consists of 12-bit ADC, control logic and integrated PMBus interface, timer, reference select, gate drive/logic, charge pump, amplifier, LDO regulator, and protection circuitries. It is available in a surface-mount package that measures 5 x 5 mm and is ideal for power monitoring and control/power budgeting, central office equipment, telecommunications, data communication equipment, PC, and server applications. Read more.
3.6 A Integrated Electronic Fuse for SSD Protection Applications
The STEF05PUR from STMicroelectronics is an Integrated Electronic Fuse that has been designed to protect hard disk drives, solid-state drives (SSD), hard disk and SSD arrays, set-top boxes, and DVD and Blu-ray disc drivers from damage. It requires an input voltage of up to 3.3 V and provides an output current of less than 3.6 A. This eFuse IC is optimized for monitoring output current and input voltage and has a controlled delay and turn-on time. It is available in a surface-mount package that measures 3.0 x 3.0 x 0.9 mm. Read more.
Over-Voltage Protection eFuse IC for PCI/SSD Applications
The AOZ18101DI-03 from Alpha & Omega Semiconductor is an Over-Voltage Protection eFuse IC that has been designed for applications that require front-end protection at the input line. It requires an input voltage of 3.5 V to 14 V and provides an output current of 5 A. This eFuse IC has an on-state resistance of 20 milli-ohms and can withstand an absolute voltage of up to 22 V on the input and output voltage pins. It has a programmable output soft start feature to control the inrush current for highly capacitive loads which in turn reduces the stress on the input power source. This RoHS Compliant eFuse is available in a surface-mount package that measures 3 x 3 mm and is ideal for servers, HDD and SSD drivers, PCI cards, and networking applications. Read more.
AEC-Q100 Qualified Single-Channel eFuse IC for Switching Applications
The SIPQ32433BDN-T1E3 from Vishay is an Automotive-Qualified Single Channel eFuse IC that has been designed to protect both power sources and downstream circuitries connected to the switch from over-loads, short-circuit, voltage surges, and excessive inrush current. It requires an input voltage of 2.8 - 22 V, a voltage rating of 28 V, and a current rating of 4.5 A. This eFuse integrates multiple control and protection features to enhance controllability and reliability with simplified designs and minimal external components. This e-Fuse is available in a surface-mount package that measures 3 x 3 mm and is ideal for power muxing, ADAS and auto-pilot, cameras and sensors, USB hubs, hold-up power switching, and automotive infotainment applications. Read more.
Negative Voltage Hot Plug Controller IC for VoIP Applications
The ISL6141CBZA-T from Renesas is a Negative Voltage Hot Plug Controller that is ideal for voice-over-internet protocol (VoIP) servers, telecom systems at -48 V, negative power supply control, and +24 V wireless base station power applications. It requires an input voltage from -20 V to -100 V. This eFuse IC features an IntelliTrip electronic circuit breaker that distinguishes between over-current and hard fault conditions. It also provides advanced features such as programmable inrush current, programmable over-voltage protection, programmable under-voltage protection and programmable current protection. This power controller is available in a surface-mount package that measures 5.00 x 4.00 x 1.75 mm. Read more.
Constant Power-Limit Hot Swap Controller IC for Base Station Applications
The MIC2310-1ZTS from Microchip Technology is a Constant Power-Limit Hot Swap Controller that has been designed to safely insert and remove PC boards to and from fixed, rack, and pedestal mid or +12 V back-planes using a few external components. It requires an input voltage of 10.8 - 13.2 V and an input current of up to 10 mA. This eFuse IC consists of a control logic, an oscillator, detectors, glitch filters, a timer circuit, a voltage regulator, MOSFETs, current sources, protection circuitries, and other passive components. It is available in a surface-mount package that measures 7.80 x 6.40 mm and is ideal for base stations, enterprise servers, high-reliability servers, enterprise switch networks, and general power-limiting applications. Read more.
Single Input-Single Output eFuse IC
The TCKE905ANA from Toshiba is a Single Input-Single Output eFuse IC designed to be used as a reusable fuse. It requires an input voltage of 2.7 - 23 V and provides an output current of 0 - 4 A. This eFuse IC has an overvoltage clamp voltage of 5.7 V. It features low ON resistance. This IEC62368-1-certified eFuse IC includes protection features such as adjustable over-current limit by an external resistor, short-circuit protection, over-voltage clamp, adjustable slew rate control by external capacitance, adjustable under-voltage protection by an external resistor and thermal shutdown to ensure protection of the IC under faulty conditions. It is available in a surface-mount package that measures 2 x 2 mm. Read more.
80 A Electronically Resettable eFuse IC for High Current Applications
The NCP81292 from onsemi is an Electronically Resettable eFuse IC that has been designed for high-current applications. It requires an input voltage of 4.5 - 18 V and provides an output current of up to 80 A. This eFuse IC includes an enable input for control, optional output pulldown when disabled, programmable soft-start, and multi-level current limit settings for efficient power management. This eFuse IC is available in a surface-mount package that measures 5.30 x 5.30 mm and is ideal for servers, storage, and base station applications. Read more.
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Note: This list has been compiled based on user activity on everything PE. To ensure that we cover the whole range of eFuse ICs we limited the number of products from each category and company. The listed products are shown in random order and are grouped by category.
