There is an art to getting accurate readings of high current values. It pays to know a few of the tricks. GEORGES EL BACHA, EVAN SHORMAN, HARRY CHANDRA | ALLEGRO MICROSYSTEMS LLC IT CAN BE CHALLENGING to sense currents exceeding 50 A because the task often involves thermal management, must take place in a limited […]
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Secrets of measuring
Compensating for temperature in high-frequency rectifier diodes
by Koji Ikeda, Sanken Electric Co. and K.C. Nishio, Allegro Micro Systems Over-temperature can be a problem in high-performance switching supplies. New power rectifier diodes build in safeguards to head off heat build-up. Pulse-width-modulated converter and amplifier designs tend to spend much of their time handling significant levels of electrical current. High currents tend to […]
New Fast-Recovery Rectifier Diode Series
Allegro MicroSystems, LLC announces the release of a fast-recovery rectifier diode series that incorporates a Schottky barrier diode (SBD) for temperature detection. The FMKS series is used for thermal protection of switching power supplies for various applications and is offered by Allegro and manufactured and developed by Sanken Electric Co., Ltd. in Japan. This new […]
New Wide Input Voltage, Synchronous Buck Regulator ICs for USB Charging
Allegro MicroSystems, LLC expands its automotive regulator portfolio by adding two devices targeted specifically at USB power applications. Allegro’s A8652 and A8653 devices are high output current synchronous buck regulator ICs that provide tight load regulation over a wiring harness without the need for remote sense lines. This remote load regulation is achieved with an […]
Multiple-output regulator handles auto LCDs
Allegro MicroSystems, LLC announces a new AEC-Q100 qualified, multiple-output regulator for powering automotive LCD displays. Allegro’s A8603 operates with fixed switching frequency that can be either programmed or synchronized with an external clock signal between 350 kHz and 2.25 MHz. This will minimize interference with AM and FM radio bands. An I²C™-compliant serial interface allows […]
Allegro Announces New High Accuracy Current Sensor ICs
Allegro MicroSystems, LLC announces two new current sensor IC devices that are true ±5 A sensor ICs or uni-directional 10 A sensor ICs for use in low power applications that require higher output swings at lower current. Allegro’s ACS722 and ACS723 devices provide an economical and precise solution for AC or DC current sensing in […]
