Combining a bipolar stepper and high current DC motor driver IC in a single package, Allego MicroSystems Europe has announced the A5989 40V motor driver IC.

Designed to drive automotive LED arrays, two series of adjustable linear current regulators hve been announced by Allegro MicroSystems Europe. The AEC-Q100 qualified A6274 and A6284 low-EMI ICs integrate an optional pre-regulator gate drive to dynamically and linearly control an external P-channel MOSFET, which extends the output power capability of a linear LED driver by moving most of the power losses to an external power FET.

Designed for the automotive, industrial and instrumentation markets, an AEC-Q100 qualified PMIC has been introduced by Allegro MicroSystems Europe. The A4450 can implement either a buck or buck/boost regulator to efficiently convert automotive battery voltages into a tightly regulated voltage, with seamless transition between the buck and boost modes. Target applications include infotainment, instrument clusters, telematics, amplifiers and contro...

  The A1367 is a field programmable linear Hall-effect current sensor IC, from Allegro MicroSystems Europe, featuring a 240kHz bandwidth, integrated voltage regulator, reverse battery protection, user-selectable ratiometry and uni- or bi-directional output options.

Featuring a built-in translator for easy operation, Allegro MicroSystems Europe has announced a new bipolar stepper motor driver IC. The A5985 is designed to operate bipolar stepper motors from full-step up to 1/32 step modes that are selectable by MSx logic inputs. This device has an output drive capacity up to 40V and ±2A and operates with a single supply.

Featuring an advanced sensing algorithm in a surface-mount SOIC-8 package, Allegro MicroSystems has released the A1667 speed sensor IC. This device provides a user-friendly solution for highly compact ring magnet applications using PCB mounting and is suitable for applications such as automotive transmissions and industrial equipment.

Featuring an externally enabled diagnostic function and user-programmable switchpoints, Allegro MicroSystems Europe has announced a unipolar Hall-effect switch. The A1162 has on-chip electromagnetic coils that are used to implement self-test of the sensor’s entire magnetic and electrical signal chain. It is designed for systems where precise magnet switchpoints and safety, reliability or both, are critical, such as those designed to meet th...

Able to drive two stepper motors or four DC motors, the A5988 quad DMOS full-bridge driver IC has been introduced by Allegro MicroSystems Europe. Each full-bridge output is rated up to 1.6A and 40V. The A5988 includes fixed off-time PWM current regulators, along with 2-bit nonlinear DACs that allow stepper motors to be controlled in full, half, and quarter steps and DC motors in forward, reverse and coast modes.

Allegro MicroSystems Europe has introduced a family of complete microstepping motor driver ICs with built-in translators. The A5976, A5977 and A5979 have been designed to operate bipolar stepper motors in full-, half-, quarter-, eight, (A5977) and sixteenth- (A5976/79) step modes. All have the output drive capability of 40V and ±2.8A and include a fixed off-time current regulator that has the ability to operate in slow, fast or mixed-decay...

Allegro MicroSystems Europe announces its first ever 1MHz bandwidth Hall-effect current sensor IC with a lightning fast 210 ns response time. The ACS730 provides an economical and precise solution for AC or DC current sensing. Allegro’s ACS730 is targeted at industrial, commercial, and communications systems. Typical applications include motor control, load detection and management, switched-mode power supplies, and over-current fault prote...

Any item of equipment that incorporates high voltage control components and a user interface has to be designed with safety clearly in mind in order to protect users from electric shock. This involves equipment meeting isolation standards through the use of insulation layers. Most standards require the user to be protected from electric shock by two levels of protection or a single layer of reinforced insulation protection. Shaun Milano of Allegr...

Offering constant-current output to drive high-power LEDs in automotive applications, two single-IC switching regulators have been introduced by Allegro MicroSystems Europe. These devices are the industry’s first, according to the manufacturer, to allow LED dimming without the need for local MCU, timer-based or PWM dimming control.

Allegro MicroSystems Europe has introduced two adjustable high frequency DC/DC step-down switching regulators with an integrated high-side power MOSFET suitable for power supply requirements of the latest infotainment systems. Allegro’s A8586 provides up to 3.5A output current; while the A8587 has output current of up to 2.0A. Both devices are automotive AEC-Q100 qualified and incorporate current mode control for fast transient response.

Allegro MicroSystems Europe announces a family of full bridge gate-driver ICs designed to drive a wide range of DC brushed motors with simple logic from an MPU. The A4955, A4956 and A5957 suit industrial and consumer applications such as robotic vacuum cleaners, vending machines, cash dispensing machines, coffee vending machines, ticketing machines, sewing machines and automatic gates/turnstiles.

Two current sensor ICs from Allegro Microsystems are economical options for use in industrial, commercial, and communication systems that require very high voltage isolation, says the company.

The A1335 from Allegro MicroSystems Europe is a new 360° contactless high-resolution programmable magnetic angle position sensor IC designed for use in digital systems in automotive and related applications involving rotating shaft sensing.

The A4481 from Allegro MicroSystems Europe is an AEC-Q100 qualified linear voltage regulator IC with built-in control, diagnostics and protection features that address the requirements of automotive applications. The device regulates input voltages between 5.25 and 40V down to an output voltage of 5V ±1%, and is able to supply up to 50mA of load current.

Allegro MicroSystems Europe has announced a integrated bipolar stepper motor driver IC with built-in translator for easy operation. Allegro’s A5984 is designed to operate bipolar stepper motors from full-step up to 1/32 step modes that are selectable by MSx logic inputs.

Claimed to be the world’s first LED driver IC to feature an integrated Hall-effect switch, the A1569 has been introduced by Allegro MicroSystems Europe. A single silicon chip integrates: a Hall plate, a small-signal amplifier, chopper stabilisation, a Schmitt trigger and an LED driver with soft on/off and short circuit and thermal protection with automatic recovery.

The latest A8591 from Allegro MicroSystems Europe is a buck regulator IC designed to meet the power-supply requirements of the latest automotive infotainment systems. It is available in fixed 5V or 3.3V regulated output voltage configurations. The new AEC-Q100 qualified device provides all the control and protection circuitry of a 2A regulator circuit with ±1% output voltage accuracy.