| 23. 02. 07 |
Ferrites for power applications |
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Epcos has developed two new ferrite materials whose properties make them suitable for the power range typical of SMPS and current meters. N95 is distinguished by a flux density of 525 mT at 25 °C and 410 mT at 100 °C. A special feature is its power dissipation at 100 °C: it is 250 kW/m3 at 500 kHz a...
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| 23. 02. 07 |
Auto-Shutdown LED Driver |
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STMicroelectronics introduced a LED driver to include auto-power-saving features. An advantage over the previous STP16Cx596 Power Logic series, the constant-current LED drivers allow the individual ICs to go into a shutdown mode when no active inputs are detected. The series features a clock and dat...
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| 20. 02. 07 |
LED drivers |
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Maxim introduces the MAX16819/MAX16820, LED drivers for architectural, industrial, and automotive lighting applications that utilize high-brightness light-emitting diodes (HB LEDs). The MAX16819/MAX16820 HB LED drivers require just one external MOSFET and only a few passive components to power LEDs ...
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| 19. 02. 07 |
Low-profile inductors with 3% DCR tolerance |
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Vishay announced a series of low-profile, high-current inductors with a 3% DCR tolerance for current sensing applications. The IFLP4040DZ01 inductors feature dimensions of 0.40 in. by 0.40 in. [10.16 mm by 10.16 mm] with a maximum height profile of 0.157 in. [4.00 mm]. They occupy the standard 4040 ...
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| 13. 02. 07 |
700mA Flash LED Driver |
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Austriamicrosystems has launched the AS3685, a 700mA charge-pump-based flash LED driver. The AS3685 is a charge-pump based flash LED driver offering 700mA flash current and is targeted at camera flash applications in mobile phones. Measuring 2x1.5mm it takes up 14mm2 of PCB space, including four ext...
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| 02. 02. 07 |
Boost converters for large panel WLED applications |
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With AnalogicTech’s AAT1235 and AAT1236, designers can employ a single boost converter with a digital interface to run five 20mA strings of up to four series-connected WLEDs and deliver a constant, non-pulsating forward current ensuring uniform brightness across the entire display, simultaneously re...
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| 02. 02. 07 |
Dual 60V Current Sense Amplifier |
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Linear Technology’s LTC6103 contains two independent, high side current sense amplifiers. The topology allows the second amplifier to be used for bi-directional operation, high/low current ranging or high voltage level translation. The LTC6103 features: input bias current is 170nA Max and the maximu...
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