'Smart' power MOSFETs have unique mix of protection circuitry

11 February 2004 Power Electronics / Power Management

A family of self-protected MOSFETS that deliver superior performance in demanding automotive and industrial applications feature an advanced level of integration made possible using On Semiconductor's industry-leading HDPlus wafer process.

The company's SmartDiscrete devices are low-side, self-clamped, 46 V, 48-185 mΩ MOSFETS with integrated current limit protection, over-temperature shut-down, over-voltage protection, and electrostatic discharge (ESD) protection. The monolithic design of the chip optimises performance across a wide temperature range. A selection of integration features are offered, ranging from the industry's first actively clamped, ESD-protected replacement for the commonly used 3055 MOSFET to a fully self-protected MOSFETs with current and temperature limit capabilities.

Protection features are mandatory for applications where a power MOSFET must survive high power and/or short circuit conditions. To address this need, these devices' self-protected circuit design incorporates drain current sensing and limiting. In the event of a short-circuited load, the current limit circuit protects against current spikes. If this condition persists, the temperature circuit monitors the junction temperature and will shut off the device when a specified set point is reached - typically 175°C. The temperature limit circuit will then automatically turn on the main MOSFET after the junction temperature decreases by approximately 15°C. The device thermally cycles until the short condition is corrected.

Further reading:

Powering the IoT
Uniross Batteries Power Electronics / Power Management
Choosing the right battery is not simply a technical detail, but a defining factor in the longevity and cost-effectiveness of any IoT deployment.

Read more...

---

The move to DC infrastructure
IOT Electronics Power Electronics / Power Management
The shift toward direct current infrastructure in data centres is accelerating as operators pursue higher efficiency, improved reliability, and stronger alignment with renewable energy goals.

Read more...

---

Power inductor for automotive applications
Würth Elektronik eiSos Power Electronics / Power Management
The WE-MXGA inductor features RDC values up to 25% lower and a saturation current up to 47% higher compared to other components currently available on the market.

Read more...

---

High-performance DC-DC converter
Conical Technologies Power Electronics / Power Management
With a wide 9 - 40 V DC input range, the Claf Power DWHB400-F24xxN series is a high-performance DC-DC converter family ideally suited for 12 V and 24 V battery-based systems including vehicles, off-grid installations, and distributed power architectures.

Read more...

---

DC-DC converters for next-generation IoT
iCorp Technologies Power Electronics / Power Management
AIPUPOWER’s K78XXJT-500R3 and K78XXJT-500R3-LB give designers a compact, high-efficiency power option for battery-powered and space-constrained systems, combining up to 96% efficiency with no-load input current as low as 0,2 mA.

Read more...

---

240 W in compact form factor
Brabek Power Electronics / Power Management
The cost-effective and reliable RECOM RACPRO1-S240E DIN-rail mount AC-DC series is only 125 x 139 mm and 39 mm wide, yet provides 240 W output.

Read more...

---

You cannot manage what you cannot measure
Power Electronics / Power Management
South African sites are generating solar energy. Most still have no idea what is consuming it… or when, or why. Intelligent load management hardware is changing that.

Read more...

---

Scalable and intelligent power solution
Power Electronics / Power Management
Designed for Africa’s rapidly evolving energy landscape, Bluetti’s ES125 offers a scalable, intelligent power solution that delivers reliable and cost-efficient electricity for uninterrupted operations.

Read more...

---

Simulating grid abnormalities
Conical Technologies Power Electronics / Power Management
Simulating grid abnormalities has become an essential part of validating systems such as inverters, UPS units, photovoltaic inverters, and EV charging infrastructure.

Read more...

---

Evaluation board for STPMIC25 PMIC
Power Electronics / Power Management
The STEVAL-PMIC25V1 is a power management IC evaluation board for the highly integrated STPMIC25, which is designed to manage the power requirements of the core, memory, and interfaces of the STM32MP2x series MPU.

Read more...

---