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LCD Backlight Driver for TFT Displays

Fri, 04/06/2001 - 5:21am
Taiyo Yuden's Power Systems Group announced the Model LS650, the latest addition to its line of compact cold-cathode fluorescent tube (CCFT) inverters for brightness control in LCD backlighting applications. Especially recommended for use with the NEC 6.5 TFT display, the LS650's rigid construction and compact, low-profile design (105 mm L × 25 mm W × 10 mm H) helps manufacturers of industrial instruments and test and measurement equipment meet continuing design miniaturization requirements. The LS650's single transformer/dual output capacity also benefits OEMs by keeping costs down through reduced onboard component counts.

The LS650 provides an input range of 11.4 - 12.6 V DC (a 5 V input model is available) and a total output of 4 W for two lamps. The easy-to-use brightness control function permits wide dimming (20 - 100%) adjustment by applying DC bias voltage (1.5 - 1.9 V) or by means of a 0 - 10 kOhm variable resistor.

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