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Acoustic Imaging Of IGBT Modules Through The Heat Sink
Acoustic imaging of IGBT modules can spot gap-type defects in or among the materials bonded to create the module. IGBT failures are often caused by gap-types defects in or among the materials bonded to create the module. The defects may be voids, delaminations, disbonds, or may involve the tilting of a layer, typically the ceram...
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High Voltage CMOS Driver for PIN Diodes
High Voltage CMOS Driver for PIN Diodes M/A-COM Technology Solutions Inc. (M/A-COM Tech) announced a new High Voltage CMOS Driver for PIN diodes for use in military and commercial radio applications. The MADR-010574 is designed to work with M/A-COM Tech's high power and high voltage PIN diodes. This driver supports series-shunt and al...
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600-V Current Sensing IC Boosts Overall System Efficiency
International Rectifier announced the introduction of the robust IR25750 general purpose current sensing IC available in an ultra-compact SOT23-5L package that boosts overall system efficiency while delivering dramatic space savings for high current applications. Measuring high currents (10-100A) through a power MOSFET or IGBT typic...
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60V Multiphase Synchronous Boost Controller with 97% Efficiency
Linear Technology Corporation announces the LTC3784, a high power two phase single output synchronous step-up DC/DC controller that replaces rectifying boost diodes with high efficiency N-channel MOSFETs. This device can produce a 24V output at 10A from a 12V input at up to 97% efficiency without any heat sink. The LTC3784 operates fro...
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3,400V Phase-leg Rectifier Module for Higher Efficiency in High Voltage Apps
IXYS has extended the range of its diode rectifier module range to 3,400 volts repetitive reverse voltage. The dual rectifier diode module with a part number MDD175-34N1 features two diodes in an industry standard module. Each diode is rated at 175 amps average current at a case temperature of 100 degrees centigrade and rated to 3,400V...
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Expanded µIPM Family Has Half-Bridge Power Modules
International Rectifier has expanded its family of highly integrated, ultra-compact, patent pending µIPM power modules with the introduction of the IRSM808-105MH and IRSM807-105MH, optimized for high efficiency appliance and light industrial applications with motor power up to 300 W. Available in an ultra-compact 8 x 9 x 0.9 mm PQFN...
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Energy Harvesting Employs Low Quiescent Current, Multi-Mode PMIC
A power management integrated circuit (PMIC) handles a lot from microamps to numerous milliamps and can distribute capability to devices employed in a power harvesting system. The hub of an energy harvesting sensor system is the particular TPS65290 from Texas Tools, a PMIC that provides successful system management with regard to lo...
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Protect IGBTs By Sensing Current Using Optical Isolation Amplifiers
Insulated-gate bipolar transistors (IGBTs) require complete protection to avoid harm and failures resulting from conditions such as small circuits, overloads and overvoltages. The security is key to ensuring safe and sound and stable power-converter operations in applications such as motor drives along with solar and residential wind p...
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A1468LK-T – Three-Wire, True Zero-Speed, Differential Peak-Detecting Sensor IC
Allegro MicroSystems, LLC Corporation introduces an optimized Hall-effect sensing IC providing you with a user-friendly solution with regard to digital ring-magnet sensing, as well as when coupled with the magnet, ferromagnetic target realizing, in three-wire applications. The small device package can easily be assembled into software ...
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Programmable Hall-effect ICs – The A1388 and A1389
Allegro MicroSystems, LLC Corporation adds two new factory one-time programmable (OTP-ROM) linear Hall ICs to their active portfolio. These devices remove the need for customers to optimize/program the devices for their completed sensor assemblies. Allegro’s A1388 and also A1389 architecturally have the ability to support the magnetic ...