The A3908 from Allegro MicroSystems Europe is a low-voltage bidirectional DC motor driver IC in an ultra-compact package measuring only 2 mm square. Combining a high operating current with a wide operating voltage range, the new device is ideal for use in battery-operated applications including cameras, toys and games, portable printer/scanners and test instrumentation.

Allegro MicroSystems Europe has introduced a new family of Hall-effect switches and latches which offer superior switching repeatability through their resistance to temperature variations and thermal stresses.

The A6210 from Allegro MicroSystems Europe is an LED driver IC based on a buck (stepdown) regulator circuit using constant ‘on’ time with valley current-mode control. This control scheme allows the use of very short switch ‘on’ times, making the new device ideal for applications requiring high switching frequencies combined with high input voltages and low output voltages.

The new A1386 from Allegro MicroSystems Europe is a user-programmable linear Hall-effect sensor IC targeted at applications in the automotive market requiring flexibility and accuracy in absolute position sensing.

The new A4403 from Allegro MicroSystems Europe is a 3 A buck regulator IC which uses a valley current-mode control scheme to offer very low switch-on times, making it ideal for applications that require high switching frequencies combined with high input voltages and low output voltages.

The A4930 from Allegro MicroSystems Europe is a single-phase brushless DC motor pre-driver integrated circuit designed to control high-current devices such as fans, blowers or pumps with supply voltages from 8 V to 36 V.

The new A1174 from Allegro MicroSystems Europe is an ultrasensitive micropower Hall-effect latch IC with internally or externally controlled sample and sleep periods for use in portable devices that employ rotational speed and direction sensing systems such as tracker balls or scroll bars for PDAs, mobile phones or MP3 players.

The new A3906 from Allegro MicroSystems Europe is a low-voltage dual full-bridge motor driver IC designed to drive one bipolar stepper motor or two DC motors.

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 A3942 from Allegro MicroSystems Europe is a 4-channel high-side MOSFET control/driver IC designed to provide an efficient interface between a system controller and the various high current inductive loads typically found in automotive engine control systems.

The new A3290 and A3291 from Allegro MicroSystems Europe are temperature-stable and stress-resistant Hall-effect latches in small, robust packages. Superior high-temperature performance is made possible through dynamic offset cancellation, which reduces the residual offset voltage normally caused by device package over moulding, temperature dependencies, and thermal stress. The two devices are targeted at non-automotive applications and are ident...

Allegro MicroSystems Europe has introduced a new high-speed, low-noise Hall-effect current sensor which offers 3 kV RMS voltage isolation and a low-resistance current conductor for 50-100 A current measurements. The ACS756 is a next-generation open-loop current sensor with a 125 kHz bandwidth capability, and takes advantage of Allegro's low-loss leadframe technology and the fast response capability of the monolithic Hall-effect sensor IC.

The new A3941 from Allegro MicroSystems Europe is an H-bridge device which complements the company’s existing line of automotive-grade MOSFET pre-driver ICs. This new device is designed around Allegro’s latest generation of BCD semiconductor process technology and includes enhanced features which make it an ideal choice for high-temperature automotive systems and industrial systems using a 24 V battery supply. In particular, significant im...

Allegro MicroSystems Europe has introduced the A1360/1/2 family of programmable linear Hall-effect sensor ICs feature extremely low noise levels and very high bandwidth, making them ideally suited to high-frequency automotive or industrial current sensing applications.

The A1172 from Allegro MicroSystems Europe is an ultra-sensitive micropower Hall-effect switch with complementary, latched digital outputs and omnipolar magnetic actuation. The new device features operation at low supply currents and voltages, making it ideal for battery-operated electronics. The combination of a low operating supply voltage (1.65 V to 3.5 V) and a unique clocking algorithm assists in reducing the average operating power consumpt...

At Sensor & Test 2008, Allegro MicroSystems Europe is featuring its latest families of Hall-effect sensors, including a number of precision current sensors designed for automotive and industrial applications.

New from Allegro MicroSystems Europe, the A1444 and A1445 are low-voltage full-bridge brushless DC motor driver ICs with integrated Hall commutation and internal PWM (pulse-width-modulation) speed control. Designed for applications that require rotor speed control and fast rotor start/stop cycles, the new devices are based on a high-density CMOS semiconductor process that allows the integration of a Hall element, an H-bridge output driver and PWM...

The new A1351 from Allegro MicroSystems Europe is a high-precision linear Hall-effect sensor IC with a 125 Hz push/pull pulse-width-modulated (PWM) output that is proportional to an applied magnetic field. The A1351 converts an analogue signal from its internal Hall sensor element to a digitally encoded PWM output signal. The coupled noise immunity of the digitally encoded PWM output is far superior to the noise immunity of an analogue output sig...

The new A4490 from Allegro MicroSystems Europe is a triple-output stepdown switching regulator integrated circuit providing three high-current outputs that are adjustable from 0.8 V to 5 V with a maximum current of 2 A.

The A6282 from Allegro MicroSystems Europe is a 16-channel LED driver IC with serial data inputs and outputs which allow easy cascading in large-scale display applications. The new device includes an input shift register, data latches, and 16 constant-current sink drivers delivering up to 50 mA per channel at 12 V. The CMOS shift registers and latches allow direct interfacing with microprocessor-based systems with supply voltages of 3.3 to 5 V.