Allegro MicroSystems, Inc.

Hall-Effect Sensors operate down to 2.5 V.
Sensors, Monitors & Transducers

Hall-Effect Sensors operate down to 2.5 V.

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,...

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Step-Down Buck Regulator features 8-50 V input range.
Controls & Controllers

Step-Down Buck Regulator features 8-50 V input range.

Supplied in eSOIC-8L package, general-purpose A8498 is 3 A fixed off-time, current-mode-controlled, buck-switching regulator that operates in continuous and discontinuous modes. Off time is determined by external resistor, and internal blanking circuit filters out transients due to reverse recovery of external clamp diode. With 200 nsec blanking time and adjustable 0.8-24 V output voltage,...

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Motor Driver suits portable applications.
Controls & Controllers

Motor Driver suits portable applications.

Capable of operating 1 stepper or 2 dc motors, A3901 dual H-bridge motor driver has operating voltage range of 2.5-5.5 V and power off current of 50 nA. Output current can be regulated by pulse width modulating inputs. Available in lead-free 3 x 3 x 0.75 mm package, A3901 features low voltage drop MOSFET outputs and internal circuit protections including thermal shutdown with hysteresis,...

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Driver IC targets office and factory automation markets.
Electrical Equipment & Systems

Driver IC targets office and factory automation markets.

Series SLA7070MPR unipolar 2-phase stepping motor driver IC features built-in motor coil, short- and open-circuit protection, and varied lout lineout from 1-3 A. Common interface signal and series pin compatibility simplify peripheral circuitry design, while built-in sense resistor helps reduce design space. Clock-in topology incorporates logic circuit that controls excitation switching and D/A...

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LED Driver suits portable electronics display applications.
Software

LED Driver suits portable electronics display applications.

Charge Pump White LED Driver, Model A8435, outputs well-matched LED currents for up to 4 channels. It accepts input range of 2.7-5.5 V and delivers up to 30 mA for each of 4 regulated current sources. Housed in 3 x 3 mm, MLP-16 package, device can deliver total output current of 120 mA, meeting requirements of most Li-ion battery-powered applications. Outputs can also be combined for WLED...

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DMOS Full-Bridge Motor Driver has over-current protection.
Controls & Controllers

DMOS Full-Bridge Motor Driver has over-current protection.

Designed for PWM control of dc motors, A3950 is capable of peak output currents to ±2.8 A and operating voltages to 36 V. PHASE and ENABLE input terminals are provided for use in controlling speed as well as direction of rotation and torque of dc motor with externally applied PWM control signals. To reduce output power dissipation, internal synchronous rectification control circuitry...

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Software

LED Driver includes open LED detection.

Designed for LED display applications, 8-channel Model A6278 features 8 NPN constant-current sink drivers, as well as 8-bit CMOS shift register and latches that allow direct interfacing with microprocessor-based systems. With 3.3 or 5 V logic supply, serial data input rates are 25 MHz. CMOS serial output permits cascade connections in applications requiring additional drivelines. Three package...

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Software

LED Driver features staggered output delay.

Suited for LED display applications, Model A6279 includes 16-bit CMOS shift register, data latches, and 16 channels constant-current sink drivers. Opened LED connections can be detected and fed back to host microprocessor through serial data out pin. With 3.3 or 5 V logic supply, serial data-input rates are 25 MHz. CMOS serial data output permits cascade connections. Package styles include...

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Electrical Equipment & Systems

Linear Current Sensors offer 20 A dynamic range.

Featuring isolation voltage to 1,600 Vrms, bi-directional Series ACS706 consists of low-offset linear Hall sensor circuit with copper conduction path located near surface of die. Output has positive slope when increasing current flows through primary conduction path. Units measure ac or dc currents and are suited for motor control, load detection, switched-mode power supplies, and overcurrent...

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Sensors, Monitors & Transducers

Digital Speed Sensor features running mode calibration.

Supplied in an SH package, ATS642LSH addresses critical requirements specific to ABS speed-sensing applications. This 2-wire, dual-element, Hall-effect sensor switches in response to differential magnetic signals from ferrous target and can handle airgap variations due to cornering events. Running mode calibration automatically adjusts for miscalibration without missing transition and maintains...

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