Allegro MicroSystems, Inc.
Marlborough, MA 01752
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LED Driver IC targets automotive interior lighting.
Providing up to 100 mA from each of 4 outputs, Model A6263 drives arrays of high brightness LEDs with constant current for safe operation. Outputs can be connected in parallel or left unused as required, and- regulated LED current from each output is set by single reference resistor. Housed in 8-pin SOICN package with exposed thermal pad for thermal dissipation, programmable current regulator...
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LED Driver IC serves automotive interior lighting applications.
Supplied in 8-pin SOIC package with exposed pad, A6269- automotive-qualified, linear, programmable current regulator can drive 2 LED strings at up to 200 mA each. Regulated LED current from each of 2 outputs is set by- single reference resistor, outputs can be connected in parallel or left unused as required, and current matching in each string is achieved without ballast resistor. Dual control...
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Current Sensor IC comes in micro sized package.
Housed in 3 x 3 x 0.75 mm QFN package with internal resistance of 0.6 mΩ, Model ACS711 is designed for high and low side sensing applications up to 100 Vdc, with over 30 A continuous current. Factory programming provides for optimized accuracy in IC, with integrated fast response fault output. Model ACS711 is suited for motor and pump control in white goods, short circuit and overpower detection...
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PWM Microstepping Driver IC offers synchronous rectification.
Designed to drive one winding of bipolar stepper motor in microstepping mode, full-bridge A4975 features outputs rated for continuous output currents to -
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Allegro MicroSystems, Inc. Announces Off-Line Quasi-Resonant Switching Regulators
Flexible Solution with Low Power Consumption Worcester, MA - March 14, 2012 - Allegro MicroSystems, Inc. announces a new series of off-line, quasi-resonant switching regulators. This new series was developed to eliminate the requirement of a dedicated power supply to the standby circuits, by reducing the input power requirement at no load to 30 mW or less for 100 VAC input and to 50 mW or less...
Read More »
Low-Noise Block Regulator offers adjustable current limit.
Intended for analog and digital satellite receivers, Model A8299 is a monolithic linear and switching voltage regulator that provides power and interface signals to LNB down converter via coaxial cable. Unit requires few external components, with boost switch and compensation circuitry integrated inside. Housed in 5 x 5 x 0.90 mm QFN-28 package, regulator meets or exceeds OEM requirements for...
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DMOS Microstepping Motor Drivers offer overcurrent protection. .
Equipped with built-in translator, Models A4982, A4984, A4985, and A4988 utilize STEP and Direction interface to operate bipolar stepper motors in full, -½, -¼, 1/8, and 1/16 step modes with output drive capacity up to 35 V and -
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Hall-Effect Latches protect against high-voltage transients.
Suited for operation to 150-
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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...
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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 »
LED Driver IC targets automotive interior lighting.
Providing up to 100 mA from each of 4 outputs, Model A6263 drives arrays of high brightness LEDs with constant current for safe operation. Outputs can be connected in parallel or left unused as required, and- regulated LED current from each output is set by single reference resistor. Housed in 8-pin SOICN package with exposed thermal pad for thermal dissipation, programmable current regulator...
Read More »
LED Driver IC serves automotive interior lighting applications.
Supplied in 8-pin SOIC package with exposed pad, A6269- automotive-qualified, linear, programmable current regulator can drive 2 LED strings at up to 200 mA each. Regulated LED current from each of 2 outputs is set by- single reference resistor, outputs can be connected in parallel or left unused as required, and current matching in each string is achieved without ballast resistor. Dual control...
Read More »
Current Sensor IC comes in micro sized package.
Housed in 3 x 3 x 0.75 mm QFN package with internal resistance of 0.6 mΩ, Model ACS711 is designed for high and low side sensing applications up to 100 Vdc, with over 30 A continuous current. Factory programming provides for optimized accuracy in IC, with integrated fast response fault output. Model ACS711 is suited for motor and pump control in white goods, short circuit and overpower detection...
Read More »
PWM Microstepping Driver IC offers synchronous rectification.
Designed to drive one winding of bipolar stepper motor in microstepping mode, full-bridge A4975 features outputs rated for continuous output currents to -
Read More »
Allegro MicroSystems, Inc. Announces Off-Line Quasi-Resonant Switching Regulators
Flexible Solution with Low Power Consumption Worcester, MA - March 14, 2012 - Allegro MicroSystems, Inc. announces a new series of off-line, quasi-resonant switching regulators. This new series was developed to eliminate the requirement of a dedicated power supply to the standby circuits, by reducing the input power requirement at no load to 30 mW or less for 100 VAC input and to 50 mW or less...
Read More »
Low-Noise Block Regulator offers adjustable current limit.
Intended for analog and digital satellite receivers, Model A8299 is a monolithic linear and switching voltage regulator that provides power and interface signals to LNB down converter via coaxial cable. Unit requires few external components, with boost switch and compensation circuitry integrated inside. Housed in 5 x 5 x 0.90 mm QFN-28 package, regulator meets or exceeds OEM requirements for...
Read More »
DMOS Microstepping Motor Drivers offer overcurrent protection. .
Equipped with built-in translator, Models A4982, A4984, A4985, and A4988 utilize STEP and Direction interface to operate bipolar stepper motors in full, -½, -¼, 1/8, and 1/16 step modes with output drive capacity up to 35 V and -
Read More »
Hall-Effect Latches protect against high-voltage transients.
Suited for operation to 150-
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 »