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| TJ9910 |
Home > Products > LED Driver > TJ9910 |
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| Universal High Brightness LED Dirver |
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FEATURES |
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- Over 90% Efficiency
- 10V to 600V Input Range
- Constant Current LED Driver
- Applications from a few mA to more than 1A output
- LED String From One to Hundreds of Diodes
- Linear and PWM Dimming Capability
- Input Voltage Surge Ratings up to 600V
- Moisture Sensitivity Level 3 |
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DESCRIPTION |
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The TJ9910 is a PWM high-efficiency LED driver control IC.
It allows efficient operation of high-brightness (HB) LEDs from voltage sources ranging from 10VDC up to 600VDC. |
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TJ9910 controls an external MOSFET
at fixed switching frequencies up to 300 kHz. The frequency can be programmed using a single resistor.
The LED string is driven at a constant current rather than a constant voltage, thus providing a constant light
output and an enhanced reliability. The output current can be programmed between a few milliamps and up
to more than 1.0A. TJ9910 uses a rugged high-voltage junction isolated process that can withstand an input
voltage surge up to 600V. The output current to a LED string can be programmed to any value between zero
and its maximum value by applying an external control voltage at the linear dimming control input of TJ9910.
TJ9910 provides a low-frequency PWM dimming input that can accept an external control signal with a duty
ratio of 0-100% and a frequency of up to a few kHz. |
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Copyright  2008 TAEJIN TECHNOLOGY CO., LTD. All Rights Reserved |
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