Device Driver Software

Device Driver Software

RGB LED Driver targets portable projectors.

Accepting 2.7-5.5 V input voltage, 2 A Model LM3435 drives 3 common anode RGB high-brightness LEDs sequentially with single inductor, powering one after another at 60 Hz and above to match LCoS or DLP devices. Switching-mode, constant current regulator integrates all active components, including N-Channel main MOSFET, P-Channel synchronous MOSFET, and 3 N-channel pass switches. Level of current...

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Device Driver Software

White LED Driver features automatic phase shifting.

Suited for LCD backlighting in tablet computers, Model AAT1451 drives up to 4 LED strings at up to 93% efficiency. Device uses 32 kHz PWM operating frequency to ensure silent operation and has switching frequency of 600 kHz to 1 MHz. To ensure accurate backlight color temperature and uniform brightness, driver has 4 current sinks that are programmable up to 30 mA per string at ±2% accuracy...

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Device Driver Software

LED Drivers store black box data for diagnostics.

With customizable software, Smart-Drive(TM) Advanced LED Drivers enable users to tailor operating parameters such as dimming curve, button vs. analog dimming control, and ambient light sensing. Drivers provide real-time telemetry as well as black-box data capture/retention of performance characteristics for diagnostic and failure mode analysis. Incorporating Mixed-Mode dimming functionality,...

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Serial to Parallel Converters offer 32 channels.
Device Driver Software

Serial to Parallel Converters offer 32 channels.

Housed in 7 x 7 mm, 44-lead QFN package, Models HV5523 and HV5623 feature 32-bit shift registers capable of up to 16 MHz, 32 latches, and 5 V control logic to perform polarity selection and blanking of outputs. Model HV5523 shifts data in counter-clockwise direction, while Model HV5623 does so in clockwise direction. RoHS-compliant devices suit applications driven by open drain output up to 220...

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Boost LED Driver allows channel-independent PWM dimming.
Device Driver Software

Boost LED Driver allows channel-independent PWM dimming.

Housed in 24-lead SOW package, 2-channel Model HV9880 enables separate LED strings to be operated at different PWM duty cycles for color mixing in LCD TV and backlighting applications. RoHS-compliant IC includes LED wiring fault detection, which protects LEDs from harmful high currents when connecting wire accidentally gets shorted to ground during manufacturing. Peak mode current control scheme...

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Boost LED Driver protects LED from high currents.
Device Driver Software

Boost LED Driver protects LED from high currents.

Housed in 16-lead SOIC package, Model HV9860 optimizes LED performance in RGB or white LED backlighting, LCD TVs and monitors, and LED lamps. Driver uses peak current mode control scheme and includes internal transconductance amplifier to control output current over all line and load conditions. RoHS-compliant IC also includes LED wiring fault detection, which protects LED string from high...

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Isolated LED Driver does not require any secondary components.
Device Driver Software

Isolated LED Driver does not require any secondary components.

Supplied in 8-lead SOIC package, HV9971 constant current LED driver has current accuracy of ±3% and is suited to control isolated, flyback topologies to enable solid-state lighting fixtures to meet UL compliance for galvanic isolation. IC design uses primary side current sensing and maintains current accuracy, and is also insensitive to external component tolerances and does not require...

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Device Driver Software

Step-Up LED Backlight Drivers target handheld devices.

Capable of driving 10 LEDS in single string, Series AAT14XX offers filtered pulse-width modulation dimming to eliminate interference with radios in cell phones and other handheld devices. Integrated current sink provides flexibility in adjusting LED current from 10-31 mA, regardless of number of series LEDs, while enabling 88% efficiency. Housed in 1.15 x 1.55 WLCSP, single-channel devices...

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Device Driver Software

Exar Demonstrates Programmable Power, Interface Solutions at Embedded World in Nuremberg, Germany

FREMONT, Calif., Feb. 22, 2011 - Exar Corporation (Nasdaq: EXAR) will be showcasing its Power Management and Interface products at Embedded World 2011 in Nuremberg, Germany. Exar products can be seen March 1-3, 2011 in Hall 9, Stand 330. These products and the demonstrations highlight Exar's continuing focus on delivering high value differentiated silicon and software solutions. Power Management...

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Device Driver Software

LED Driver offers 4-channel grouped delay.

With input voltage range of 3.0-5.5 V and LED channel voltage up to 17 V, Model TLC59282 minimizes simultaneous switching noise by staggering switching of LED outputs, facilitating 2-layer PCB routing in LED modules. Serial-controlled, 16-channel, constant-current sink LED driver features channel-to-channel current accuracy of ±0.6% and chip-to-chip current accuracy of ±1%. Device is...

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Sponsored

Simple Connection MGB with EtherNet/IP

The new MGB with EtherNet/IP is a leap forward in access door safety. Designed for easy installation, flawless performance, and long service life, it is engineered with robust features and cutting-edge technology that places it firmly at the leading edge of the door safety device industry. To learn all about the benefits of the Euchner MGB, see our video.

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