Mid-voltage MOSFETs for low-power applications
24 October 2001
Power Electronics / Power Management
International Rectifier has expanded its family of SOIC-packaged HEXFET power MOSFETs. These MOSFETs are made with a small die and offer 150 and 200 V breakdown voltage in SO-8 and TSOP-6 packages at very low currents (less than 2 A). The small die makes these components cost-effective, yet they perform effectively against larger, more powerful devices, according to the manufacturer.
The new devices are power management solutions for low to medium-power isolated, board-mounted DC-DC converters. The expanded device range includes the industry's first 150 V MOSFET in the TSOP-6 package. The expanded 150 and 200 V SOIC product family now includes primary devices for smaller standard packages delivering 20 W and below, as well as for higher power half and quarter-'brick' modules up to 100 W.
IR's new SOIC power MOSFETs are specifically made for backplane power module systems found in distributed power architecture (DPA) circuits used in telecom/datacom system power supplies. In DPA systems, high-current, low-voltage (3,3 V and less) power modules are mounted directly on the system board. The power supplies for the low-power biasing circuits are commonly located on a backplane to save motherboard space. The biasing circuits supply power to op-amps, RF amplifiers and other circuits.
Backplane power supplies typically have 48 V input converters in the sub-20 W power range with outputs such as 5, 12, -5 V and/or -12 V. The new SOICs feature low RDS(on) to reduce conduction losses, low gate charge and low Miller charge to reduce switching losses.
The IRF5802 features ultra-low gate charge, the IRF7465 has lower RDS(on) and lower gate charge, and is designed for ten to 20 W modules, while the IRF7451 with ultra-low RDS(on) provides optimal performance for modules in the 25 W class. For modules requiring 200VN MOSFETs, IRF5801 (TSOP-6) and IRF7464 (SO-8) provide similar benefits for the 10 to 20 W power range.
Avnet Kopp
(011) 444 2333
sales@avnet.co.za
www.avnet.co.za
Further reading:
40 W and 75 W railway DC/DC converter
Brabek
Power Electronics / Power Management
RECOM has announced two new cost-efficient DC/DC converters for the rail market with an ultra-wide 11:1 input range to cover all nominal input voltages from 24 to 110 V DC.
Read more...
High-precision current transducer
Power Electronics / Power Management
Danisense announces its new high-precision DP12IP current transducer designed for isolated DC and AC current measurement in demanding PCB-mounted power electronics applications.
Read more...
Secure holder for protected 18650 batteries
Power Electronics / Power Management
Designed for protected 18650 batteries up to 70 mm long, the holder offers secure retention for portable, industrial, and embedded applications.
Read more...
More room to scale
Altron Arrow
Power Electronics / Power Management
With the latest STM32H5 lines from STMicroelectronics, you can now scale within the same platform, from a compact 1 Mbyte device to higher-memory MCUs for graphics-rich and feature-heavy designs.
Read more...
Surface mount power amplifier for high-power applications
RF Design
Power Electronics / Power Management
The GNA-63-5W+, from Mini-Circuits, is a GaN MMIC Power Amplifier (PA) designed for demanding RF applications requiring high efficiency, excellent linearity, and a compact footprint.
Read more...
1200 V QSiC modules
Power Electronics / Power Management
SemiQ Inc has launched the QSiC Dual3, a family of 1200 V half-bridge MOSFET modules for motor drives in data centre cooling systems, grid converters in energy storage systems, and industrial drivers.
Read more...
MCOTS transient filter for military applications
RFiber Solutions
Power Electronics / Power Management
SynQor has announced the new MCOTS-F-28-T-HE transient half-brick filter, the latest addition to its MCOTS product family.
Read more...
Expanded range of high-thermal-performance QSiC modules
Power Electronics / Power Management
SemiQ’s half-bridge series for data centre power converters and industrial motor drives features low RDSON SiC MOSFETs and parallel SBD diodes for best-in-class power density and conversion efficiency.
Read more...
Transporting lithium batteries and IoT devices
Power Electronics / Power Management
With billions of rechargeable and non-rechargeable lithium cells and batteries powering most of the world’s consumer and industrial electronic devices, shipping them to customers through vast global logistics chains is often an overlooked topic.
Read more...
Setting a new benchmark for high-power DC load testing
Conical Technologies
Test & Measurement Power Electronics / Power Management
The new ITECH IT8900G/L high-speed, high-power DC electronic load offers a powerful combination of speed, scalability, precision and high-power density.
Read more...
printer friendly version