Allegro MicroSystems, Inc.
Marlborough, MA 01752
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Linear 3.3 V Hall-Effect Sensor IC comes in miniature package.
Intended for applications requiring medium accuracy in small package, A1304 eliminates need to program device to compensate for temperature effects on sensor performance. Sensitivity and QVO TC are blind blown (trimmed) at factory for optimal accuracy, and programmable sensitivity level is 4 mV/G Ã-
Read More »Off-Line PWM Controllers integrate power MOSFET.
Available in DIP-8 and SOIC-8 packages, STR4A100 series incorporates sense MOSFET andÃ- current mode PWM controller IC. Products use secondary side regulation topology and make it possible to lower stand-by power to
Read More »Unipolar Hall-Effect Switch features built-in diagnostics.
With integrated coil surrounding Hall sensing element,Ã- A1160 functions asÃ- typical unipolar switch during normal operation: output turns on in presence of south-pole magnetic field and off when field is removed. Diagnostics modeÃ- lets current pass through integrated coils, generating ~20 G of magnetic field. Proximity of coils to Hall sensing elementÃ- lets element sense field...
Read More »Direction Detection Sensor IC uses 2 Hall-effect switches.
Providing digital output signals that indicate speed and direction of target rotation, Model A1233 is suited for ring magnet based, speed and direction systems located in harsh automotive and industrial environments. Dual-channel monolithic IC contains 2 independent Hall-effect bipolar switches that are located 1.63 mm apart and are photolithographically aligned to better than 1 Ã-µm....
Read More »Programmable Linear IC delivers output redundancy.
Targeting automotive market, Model A1359 provides dual tracking output, where PWM output tracks analog output to within Ã-
Read More »Full-Bridge PWM Motor Driver features synchronous rectification.
For bidirectional PWM current control of inductive loads, A4973 is capable of continuous output currents to Ã-
Read More »Xenon Photoflash Charger ICs come in 2 x 2 mm DFN package.
Offering charge and trigger voltage logic thresholds set at 1 VHI, models A8732 and A8735 support applications implementing low-voltage control logic, such as mobile phones. Current limit for A8732 can be programmed from 0.45-1.5 in 16 steps with single wire interface, while for A8735 it is fixed at 1 A. Utilizing primary-side voltage sensing, devices eliminate need for secondary-side voltage...
Read More »LED Driver suits medium LCD display backlighting.
Targeting automotive applications, Model A8501 integrates boost converter and four 100 mA current sinks. LED channels can be tied together for up to 400 mA sink capability. Operating from single power supply of 8-21 V, constant frequency, current-mode converter withstands up to 40 V. Operating frequency can be set up to 2 MHz to avoid interference with AM radio bands. Pb-free IC is housed in...
Read More »Current Sensor offers 120 kHz bandwidth.
Featuring 100 Ã-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...
Read More »Motor Driver enables camera phone autofocus and zoom.
Operating in temperatures from -40Ã-
Read More »Linear 3.3 V Hall-Effect Sensor IC comes in miniature package.
Intended for applications requiring medium accuracy in small package, A1304 eliminates need to program device to compensate for temperature effects on sensor performance. Sensitivity and QVO TC are blind blown (trimmed) at factory for optimal accuracy, and programmable sensitivity level is 4 mV/G Ã-
Read More »Off-Line PWM Controllers integrate power MOSFET.
Available in DIP-8 and SOIC-8 packages, STR4A100 series incorporates sense MOSFET andÃ- current mode PWM controller IC. Products use secondary side regulation topology and make it possible to lower stand-by power to
Read More »Unipolar Hall-Effect Switch features built-in diagnostics.
With integrated coil surrounding Hall sensing element,Ã- A1160 functions asÃ- typical unipolar switch during normal operation: output turns on in presence of south-pole magnetic field and off when field is removed. Diagnostics modeÃ- lets current pass through integrated coils, generating ~20 G of magnetic field. Proximity of coils to Hall sensing elementÃ- lets element sense field...
Read More »Direction Detection Sensor IC uses 2 Hall-effect switches.
Providing digital output signals that indicate speed and direction of target rotation, Model A1233 is suited for ring magnet based, speed and direction systems located in harsh automotive and industrial environments. Dual-channel monolithic IC contains 2 independent Hall-effect bipolar switches that are located 1.63 mm apart and are photolithographically aligned to better than 1 Ã-µm....
Read More »Programmable Linear IC delivers output redundancy.
Targeting automotive market, Model A1359 provides dual tracking output, where PWM output tracks analog output to within Ã-
Read More »Full-Bridge PWM Motor Driver features synchronous rectification.
For bidirectional PWM current control of inductive loads, A4973 is capable of continuous output currents to Ã-
Read More »Xenon Photoflash Charger ICs come in 2 x 2 mm DFN package.
Offering charge and trigger voltage logic thresholds set at 1 VHI, models A8732 and A8735 support applications implementing low-voltage control logic, such as mobile phones. Current limit for A8732 can be programmed from 0.45-1.5 in 16 steps with single wire interface, while for A8735 it is fixed at 1 A. Utilizing primary-side voltage sensing, devices eliminate need for secondary-side voltage...
Read More »LED Driver suits medium LCD display backlighting.
Targeting automotive applications, Model A8501 integrates boost converter and four 100 mA current sinks. LED channels can be tied together for up to 400 mA sink capability. Operating from single power supply of 8-21 V, constant frequency, current-mode converter withstands up to 40 V. Operating frequency can be set up to 2 MHz to avoid interference with AM radio bands. Pb-free IC is housed in...
Read More »Current Sensor offers 120 kHz bandwidth.
Featuring 100 Ã-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...
Read More »Motor Driver enables camera phone autofocus and zoom.
Operating in temperatures from -40Ã-
Read More »