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Allegro Microsystems

All articles from Allegro Microsystems

A5303 senses light scattered from smoke particles

The A5303 from Allegro is a low-current BiCMOS photoelectric smoke detector integrated circuit designed to be used with an infrared optical chamber to sense light scattered from smoke particles.

News from Electronicstalk, 28 July 2010

Allegro driver ICs improve stepper-motor control

Two full-bridge stepper-motor driver ICs, the A4986 and A4987, have been introduced by Allegro Microsystems.

News from Electronicstalk, 1 July 2010

Pre-driver IC for office automation applications

Allegro Microsystems Europe has introduced a three-phase brushless DC motor pre-driver IC, targeted at applications within the office automation sector, including laser printer and copier drum drives.

News from Electronicstalk, 17 June 2010

Switch IC suits harsh industrial environments

The A1230 from Allegro Microsystems Europe is a dual-channel quadrature Hall-effect bipolar switch IC for use in rotating ring-magnet-based speed and direction sensing in automotive applications.

News from Electronicstalk, 4 June 2010

Allegro develops multi-output LED RGB driver IC

The A8512 from Allegro Microsystems is a multi-output white LED RGB driver IC for the LED backlighting of large-area LCD monitors and television screens.

News from Electronicstalk, 26 May 2010

DMOS motor driver ICs for office automation market

Allegro Microsystems Europe has introduced four DMOS microstepping motor driver ICs for the office automation market.

News from Electronicstalk, 3 May 2010

Latch ICs protect against high transient voltages

Allegro Microsystems' A1225, A1227 and A1229 are Hall-effect latch ICs that combine enhanced protection against high transient voltages.

News from Electronicstalk, 22 April 2010

Allegro introduces photoflash charger ICs

Allegro Microsystems has announced two ultra-small Xenon photoflash charger ICs designed to offer a low-cost solution for very low power, small form factor cameras and camera phones.

News from Electronicstalk, 9 April 2010

Allegro IC senses currents of 12.5-25A nominal

The ACS710 from Allegro Microsystems Europe is a 120kHz bandwidth, high-voltage isolation current sensor integrated circuit (IC).

News from Electronicstalk, 26 October 2009

Latch IC offers improved switching repeatability

Allegro Microsystems Europe has launched the A1222, a temperature-stable and stress-resistant Hall-effect latch IC.

News from Electronicstalk, 14 September 2009

Allegro unveils ATS667LSG gear-tooth sensor IC

Allegro Microsystems Europe has introduced a true-zero-speed gear-tooth sensor IC to provide a flexible high-accuracy solution for digital gear-tooth sensing in automotive transmission applications.

News from Electronicstalk, 9 June 2009

ACS758 senses AC and DC currents

The ACS758 from Allegro Microsystems Europe is a thermally enhanced, high-current, Hall-effect-based linear current sensor that can sense AC or DC currents.

News from Electronicstalk, 23 April 2009

Allegro current sensors available from Solid State

The next-generation, high-bandwidth, low-power-loss ACS758 current sensor range from Allegro Microsystems is now available from Solid State Supplies.

News from Electronicstalk, 20 April 2009

LED driver IC allows short switch 'on' times

The A621 from Allegro Microsystems Europe is an LED driver IC based on a buck (step-down) regulator circuit using constant 'on' time with valley current-mode control.

News from Electronicstalk, 11 February 2009

Allegro unveils programmable Hall-effect sensor IC

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

News from Electronicstalk, 2 February 2009

IC uses valley current-mode control scheme

The A4403 from Allegro Microsystems Europe is a 3A buck regulator IC that uses a valley current-mode control scheme to offer low switch-on times.

News from Electronicstalk, 16 January 2009

Driver is cool choice for fan control

Single-phase brushless DC motor predriver IC can control high-current devices such as fans, blowers or pumps with supply voltages from 8 to 36V.

News from Electronicstalk, 19 August 2008

Hall-effect latch saves mobile power

Micropower latch has different clocking modes that can be used to control the average power consumption in portable applications while optimising it for a particular application.

News from Electronicstalk, 6 August 2008

IC prevents motor damage

The A3906 detects DC motor stall conditions and allows the control of the stall time, improving battery life and the prevention damage to the motor.

News from Electronicstalk, 16 July 2008

Driver powers automotive motors

Third-generation automotive-grade three-phase MOSFET predriver is ideal for systems that use sinusoidal control of the motor phase currents.

News from Electronicstalk, 9 July 2008

  • Hall-effect latches stay stable
  • H-bridge device provides efficiency boost
  • Sensor IC boosts noise immunity
  • Hall-effect switch saves portable power

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