Sensors / Detectors / Transducers
Hall-Effect Sensors operate down to 2.5 V.
Press Release Summary:
Suited for battery-operated applications, analog-output Models A1391/2 and A1393/5 include sleep enable pin and have high impedance outputs while in sleep mode. By employing logic level on sleep enable pin, users can configure power consumption for device by modulating when device is active and sleeping. Housed in 2.00 x 3.00 x 0.75 mm packages, Models A1391/2 feature gains of 1.25 and 2.50 mV/G, respectively, while Models A1393/5 offer gains of 5.00 and 10.0 mV/G, respectively.
Original Press Release:
Allegro Adds Unique Hall-Effect Sensors to their Existing Portfolio of Linear Hall-Effect Sensors
Worcester, MA, September 7, 2006 - Allegro announces several new devices to complement their existing portfolio of linear Hall-effect sensors. These new devices are unique to the market because they are the first analog-output Hall-effect sensors that operate down to 2.5 V, include a sleep enable pin and have high impedance outputs while in sleep mode. This new family of Hall-effect sensors are targeted at the consumer market and address specific application demands.
The low-voltage operation allow these devices to be used in battery-operated applications, which traditionally provide less than a 5 V supply. By employing a logic level on the sleep enable pin, users are able to configure the desired power consumption for the device by modulating when the device is active (~ 4 mA current draw) and sleeping (~ 25 µA). Additionally during the sleep mode the output is not valid, high impedance, allowing the outputs from multiple devices to be conected to and sampled by a single A/D converter.
The A1391/2 are differentiated by their gains: 1.25 mV/G and 2.50 m/G, respectivly. Similarly the A1393/5 are also differentiated by their gains: 5.00 mV/G and 10.0 mV/G, respectivly. All devices are available in a miniature, low profile, lead-less package: 2.00 mm by 3.00 mm by 0.75 mm micro-leaded package.
All devices are priced at $0.70 in quantities of 1,000. All four devices have a 12-week lead-time to market.
About Allegro
Allegro MicroSystems, Inc. is a global leader in the development, manufacture and marketing of high-performance power integrated circuits and integrated Hall-effect magnetic sensors. Allegro's innovative, system-level solutions serve high-growth applications within the automotive, computer/office automation, industrial, consumer and communications markets, while our leading-edge product and processes reinforce our expertise in motor driver and power management technology. In addition, we also hold leading positions within printer, scanner, copier and portable device (e.g. cellular phones) applications. With more than 2,400 employees, Allegro is headquartered in Worcester, MA. Further information about Allegro can be found at www.allegromicro.com.
