Electronic Drivers

Electronic Drivers

National Semiconductor Introduces New SolarMagic ICs for Microinverter, Power Optimizer and Charge Controller Systems

Renewable Energy Grade ICs Reduce Photovoltaic System Cost, Improve Reliability and Simplify Design Santa Clara, Calif. - National Semiconductor Corp. (NYSE:NSM) today introduced ten new SolarMagicTM integrated circuits (ICs), the first in a series developed to reduce cost, improve reliability and simplify design of photovoltaic (PV) systems. Ranging from the industry's first full-bridge gate...

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VCSEL/Laser Driver and Postamplifier suits Ethernet applications.
Electronic Drivers

VCSEL/Laser Driver and Postamplifier suits Ethernet applications.

Designed for fiber optic modules for SFP and SFF applications, PHY1040-01 operates with 3.3 V supply and comes in 5 x 5 mm QFN package. Common anode VCSEL driver output stage has 32 mA max modulation drive and 20 mA bias current, while continuous mode LASER driver offers up to 80 mA modulation and 90 mA bias current. Bias current can be controlled by APC loop or in open loop mode, and limiting...

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Electronic Drivers

LED Driver IC supports dimming for residential applications.

Supporting 40/60/100 W incandescent bulb replacement, Model ICL8001G enables up to 90% efficiency and achieves power factor exceeding 98%. Off-line driver IC features integrated power factor correction and operates with many phase cut dimmers, maintaining greater than 80% efficiency over complete dimming range. Other features include isolated driver output for thermal management, digital...

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LED Driver suits medium LCD display backlighting.
Electronic Drivers

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...

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Electronic Drivers

LED Driver equalizes brightness of LCDs in portable devices.

Model FAN5341 offers 32 linear dimming steps and drives 3-5 white LEDs in series, with same current for each, at 83% efficiency. Boost LED driver operates at 1.2 MHz switching frequency and includes Schottky diode to minimize size of external passive components and board space. Its single-wire interface lets designers control brightness levels of LEDs by transmitting digital pulses from MCU to...

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Electronic Drivers

LED Flash Driver optimizes picture and video quality.

Driving up to 1,000 mA, Model AS3645 can be used in single or double LED flash environments. High-side current source works with up to 2 x 500 mA with LEDs in serial configuration, and up to 720 mA with 1 LED. Inductive device auto detects whether to employ single or dual LED mode, and enables direct one-button flashlight mode. Equipped with 2 MHz fixed frequency DC-DC boost converter with soft...

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Electronic Drivers

White LED Drivers increase efficiency in mobile devices.

As step-up type DC/DC converters, TB62730WLG and TB62750FTG drive white LEDs used to backlight LCDs in consumer electronics. Operating efficiency of 80% in flash mode helps minimize power consumption and lengthen battery life. With supply voltage range of 2.8-5.5 V, ICs incorporate soft-start function and can drive white LEDs at 800 mA using lithium ion batteries. Model TB62750FTG has one...

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Electronic Drivers

LED Drivers suit retail and architectural lighting systems.

With 4.5-29 V operating range, Models XRP7603 and XRP7604 are capable of driving high brightness LEDs up to 0.5 and 1 A, respectively. Units operate at frequency of 1.2 MHz with integrated loop compensation, and feature 200 mV feedback reference voltage, which minimizes power dissipation while maximizing efficiency up to 95%. Housed in thermally enhanced SO-8 packages, drivers convert from 29 V...

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