Search results for "Photonic Microsystems"

The new A4935 from Allegro MicroSystems Europe is an automotive-grade 3-phase MOSFET pre-driver IC targeted at automotive and industrial applications. This third-generation device includes enhanced performance and operational features, and is ideal for systems that use sinusoidal control of the motor phase currents. This commutation method provides smooth operation, reducing audible noise and minimising torque ripple at the load.

The new A4401 from Allegro MicroSystems Europe is an automotive-grade quasi-resonant discontinuous flyback convertor control IC which provides all the necessary control functions for driving a vacuum fluorescent display (VFD) with the minimum of external components.

Allegro MicroSystems Europe has introduced two new families of high-performance low-noise Hall-effect current sensors featuring an isolation voltage of 2100 V RMS. Each device is available in ±5 A, ±20 A or ±30 A versions, with corresponding sensitivity levels of 185, 100 or 66 mV/A.

The new A1205 from Allegro MicroSystems Europe is a general-purpose Hall-effect bipolar switch that is optimised for applications where pulsing the supply line is used to conserve power. The new device is a next-generation replacement of Allegro's popular A3134 bipolar switch but with enhanced performance in a more compact package. The A1205 is designed to switch in response to a north/south alternating magnetic field, typically from a multi-pole...

The A3423 from Allegro MicroSystems Europe is a dual-channel Hall-effect sensor designed for use in speed and direction sensing applications incorporating encoder ring-magnet targets. The new device is highly sensitive and temperature stable, making it ideal for use in harsh automotive and industrial environments. Integrated protection against electromagnetic interference and electrostatic discharge, along with output short-circuit protection, m...

The A139x family of linear Hall effect sensor integrated circuits from Allegro MicroSystems Europe combines micropower operation, a tri-state output and a user-selectable 'sleep' mode. The new sensor ICs provide a voltage output that is directly proportional to an applied magnetic field. The 'sleep' mode allows the devices to operate at a current consumption of less than 25 µA, which contrasts with typical Hall-effect ICs whose sensitivity befor...

The new ACS714 and ACS715 from Allegro MicroSystems Europe are a range of automotive-grade Hall-effect linear current sensors combining high accuracy with excellent voltage isolation. The new devices are designed to provide economical and precise sensing solutions for AC and DC currents in automotive applications such as motor control, load detection and management, switched-mode power supply control, and overcurrent fault protection.

The new A3989 from Allegro MicroSystems Europe is a high-efficiency motor driver IC designed to drive one bipolar stepper motor at up to 1.2 A and one DC motor at up to 2.4 A. The A3989 is designed for applications, typically found in office automation, automated handling equipment and gaming machines, that incorporate one DC motor and one stepper motor. The integration of two motor drivers in one compact package makes the A3989 more cost effect...

The new A4931 from Allegro MicroSystems Europe is a 3-phase brushless DC motor pre-driver integrated circuit with outputs for the direct high-current gate drive of an all N-channel power MOSFET 3-phase bridge with a maximum supply voltage of 38 V. The device includes three Hall-element inputs, a sequencer for commutation control, fixed off-time pulse width modulation (PWM) current control and locked rotor protection. Output current is scalable w...

The new A8299 from Allegro MicroSystems Europe is a robust dual-channel low-noise block (LNB) regulator designed to provide the power and interface signals via coaxial cable to the LNB down-converters used in analogue and digital satellite receivers.