Allegro MicroSystems, Inc.

2-Wire Linear Hall-Effect Sensor has PWM output.
Sensors, Monitors & Transducers

2-Wire Linear Hall-Effect Sensor has PWM output.

Incorporating voltage regulator that allows device to be powered directly from battery, A1354 is targeted at position sensing applications in automotive and industrial sectors. BiCMOS, monolithic circuit inside integrates Hall element, temperature-compensating circuitry to reduce intrinsic sensitivity and offset drift of Hall element, small-signal high-gain amplifier, dynamic offset cancellation...

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Current Sensor offers 120 kHz bandwidth.
Sensors, Monitors & Transducers

Current Sensor offers 120 kHz bandwidth.

Featuring 100 Â-µW integrated current conductor, 50-200 A Model ACS758 provides AC or DC current sensing. Thermally enhanced device consists of linear Hall sensor circuit with copper conduction path. Applied current flowing through conduction path generates magnetic field, which is sensed by integrated Hall IC and converted into proportional voltage. Applications include motor control, load...

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Motor Driver enables camera phone autofocus and zoom.
Controls & Controllers

Motor Driver enables camera phone autofocus and zoom.

Operating in temperatures from -40°C to +85°C, A3907 Voice Coil Motor Driver features voltage range of 2.3-5.5 V with maximum output current of 102 mA. Output current is programmed via I2C interface in 100 Â-µA increments and unit features input supply current of less than 100 nA in sleep mode. Programmable output current slew rate control minimizes ringing and settling time....

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Agricultural & Farming Products

Hot Swap Controller includes power good indication.

Consisting of Hall-effect current sensor with integrated charge pump, gate driver, and multiple levels of load fault protection, 12 V Model ACS761 provides hot swap control and short circuit protection in single IC without external shunt resistor. Resistance of internal current conductor is typically 1.5 mW, and fixed over current fault threshold is set internally to 40 A. PGOOD pins provide...

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Electrical Equipment & Systems

Switches and Latches operate in temperatures up to 150°C.

Models A1220 and A1221 include dynamic offset cancellation for high-temperature performance. Each unit features silicon chip with voltage regulator, Hall-voltage generator, small-signal amplifier, chopper stabilization, Schmitt trigger, and short-circuit protected open-collector output that can sink up to 25 mA. On-board regulator permits operation with supply voltages of 3.0-24 V. Package types...

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Controls & Controllers

BLDC Full-Bridge Motor Driver integrates Hall commutation.

Capable of full functionality down to 1.8 V VDD, A1448 is designed to drive low-voltage, brushless DC vibration motors in portable devices. Singular input control allows for direct input PWM for speed control, can initiate active braking function, and acts as enable pin to engage micro-power sleep mode. Hall sensor, used to detect rotational position of alternating-pole ring magnet, achieves...

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Controls & Controllers

Dual DC/Stepper Motor Driver has low-voltage design.

Dual full bridge motor driver can drive one bipolar stepper motor or 2 DC motors in portable, battery-powered applications. Each output channel is rated at 1 A, with operating supply of 2.5-9 V, and output current for each full bridge can be controlled via internal fixed off time PWM regulator or PWM control of 2 logic inputs. Features also include low on resistance DMOS outputs and peak current...

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Electrical Equipment & Systems

TPOS Cam Sensor is factory-programmed and flexible.

Offered as true zero-speed and True Power On State (TPOS) gear-tooth sensor, ATS675 incorporates single-element Hall IC with optimized custom magnetic circuit that switches in response to magnetic signals created by ferrous target. Digital IC eliminates detrimental effects of magnet and system offsets, and peak-detecting DACs set switching thresholds of device. Solution dynamically adapts to...

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Electrical Equipment & Systems

Control IC targets PFC circuits mounted in AV devices.

Available in through hole and surface mount versions, Model SSC2001 provides 97% power efficiency, oscillation frequency of 65 kHz, and frequency jitter of 3-6 kHz to minimize EMI noise. Device offers extensive range of protection functions, including output overvoltage protection, overcurrent protection, and output open detection. Brown-in/Brown-out protection function stops circuit operation...

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Sensors, Monitors & Transducers

Hall-Effect Latch features single push-pull output.

Operating from 1.65-3.5 V without external pull-up resistor, Model A1174 features internally or externally controlled sample and sleep periods for track ball/scroll bar applications. When sufficient positive magnetic field is present on device, output transitions to low state until negative field of sufficient strength latches device output into high state. Housed in 6-pin MLP microleadframe...

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