驅動器類型 Boost Step-up
電壓 - 電源 6-30
電流 - 輸出/通道 24W±5%
效率(%) 90
功率晶體管 Built-in
腳位/封裝 MSOP-10
文件 Eval Board
狀態 Prod
產品系列 31 = 商業/工業模擬
產品類別 LT = 照明LED驅動器
IC代碼 3505
焊接 L = 無鉛
温規 S2 = 工業級 (-40ºC to 85ºC)
外包裝 卷轴包
相關IC编號

IS31LT3505-SLS2-TR 特徵

  • High efficiency: 90% typical
  • Over-temperature protection
  • MSOP-10 package

概觀

The IS31LT3505 is a constant current step-up converter with internal NMOS. The step-up converter topology allows series connection of the white LEDs so the LED currents are identical for uniform brightness as well as constant output voltage to drive other devices. The output current of each channel can be set by an external resistor and dimming the brightness of LEDs with the PWM signal or DC voltage. The IS31LT3505 operates with a switching frequency up to 1MHz. A low 0.3V feedback voltage minimizes power loss in the current setting resistor for better efficiency. With OVP circuit, the chip and the system can be safe even if the load is not connected. IS31LT3505 is available in MSOP-10. It operates from 6V to 30V over the temperature range of -40°C to +85°C.