Allegro MicroSystems Europe Ltd
Allegro MicroSystems Europe Ltd Articles
Constant-current LED driver IC with PWM control
The A6280 from Allegro MicroSystems Europe is a new 3-bit constant current LED driver which enables users to minimise the number of components needed to drive LEDs with large pixel spacing. The new driver controls LED luminance using a pulse width modulation (PWM) scheme which gives the application the capability of displaying up to one billion colours. An external resistor is used to set the overall maximum current, which can be set over a wide ...
Allegro MicroSystems Europe develops new simulation software for automotive sensors
Engineers at the Allegro MicroSystems Europe Sensor Applications Centre in Annecy, France, have developed a software simulator for the company's automotive Hall-effect sensors that has dramatically reduced development times and eased interaction with customers.
High-performance low-noise current sensors with 2100V RMS isolation
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.
LNB voltage regulator ICs for satellite receiver applications
The new A8290 and A8291 from Allegro MicroSystems Europe are single low noise block (LNB) convertor regulator ICs for use in analogue and digital satellite receivers.
High-voltage microstepping motor driver IC with built-in translator and overcurrent protection
The new A3987 from Allegro MicroSystems Europe is a microstepping motor driver IC which combines an output drive capability of 50 V and ±1.5 A with built-in translator circuitry and overcurrent protection. The new device is designed to operate bipolar stepper motors in full, half, quarter and sixteenth step modes, and includes a fixed off-time current regulator which has the ability to operate in slow or mixed decay modes. Typical applications ...
Step-down regulator ICs combine wide input voltage range with 3 A and 4 A outputs
The new A8698 and A8697 from Allegro MicroSystems Europe are the latest additions to the company's range of step-down regulator ICs.
Dual full-bridge PWM motor driver IC
The new A3969 from Allegro MicroSystems Europe is a compact dual full-bridge pulse-width modulated (PWM) motor driver integrated circuit which is ideally suited to applications in portable equipment or where board space is limited.
White LED driver IC for display backlight and flash/torch
The A8530 from Allegro MicroSystems Europe is a high-efficiency charge pump integrated circuit that offers a simple, low-cost white LED driver solution for driving four display backlight and two flash/torch video-mode white LEDs.
Allegro's A138X Programmable Hall sensor ICs are low profile
The new A138X family of Hall-effect sensor integrated circuits from Allegro MicroSystems Europe are programmable, analogue-output devices that are offered in a choice of low-profile surface-mount packages.
PWM motor driver controls bipolar microstepping stepper motors
The new A3992 from Allegro MicroSystems Europe is a DMOS full-bridge microstepping PWM motor driver integrated circuit designed for the pulse-width-modulated (PWM) current control of bipolar microstepping stepper motors.
Hall-effect sensor ICs for battery-powered applications
The new A1391 and A1392 linear Hall-effect sensor ICs from Allegro MicroSystems Europe are micropower devices that feature a power consumption of only 10 mW in active mode. Despite the low power consumption, the features required to produce a highly accurate linear Hall effect IC have not been compromised.
Dual full-bridge MOSFET driver IC with microstepping translator
The A3986 from Allegro MicroSystems Europe is a dual full-bridge gate driver IC with integrated microstepping translator circuitry. The device is suitable for driving a wide range of industrial bipolar 2-phase stepper motors in the 30 to 500 W power range. Motor power is provided by external N-channel power MOSFETs at supply voltages from 12 to 50 V.