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G5121,pdf datasheet(Fixed Freq

  • 资源大小:433
  • 上传时间:2021-09-09
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  • 标      签: White LED

资 源 简 介

The G5121 is a step-up DC/DC converter specificallydesigned to drive up to 5 series white LEDs with constantcurrent. Series connecTIon of the LEDs providesidenTIcal LED currents resulTIng in uniform brightnessand eliminates the need for ballast resistors. TheG5121 switches at 1MHz, allowing the use of TIny externalcomponents. A low 0.254V feedback voltageminimizes power loss in the current setting resistor forhigh efficiency. The OVP pin monitors the output voltageand turns off the converter whenever the LEDs are open.The G5121 is available in low profile SOT-23-6,TSOT-23-6 and TDFN3X3-10 package.
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