輸出數 10
類型 Boost
電流 - 輸出/通道 (mA) 20
電壓 - 電源 2.7-5.5
ISD(uA) 2.0
Intensity Ctrl. PWM or DC Level
腳位/封裝 TT = TSOT23
文件 Eval Board
狀態 Prod
產品系列 31 = 商業/工業模擬
產品類別 BL = LCD背光的白色LED驅動器
IC代碼 3508
硅片版本 A
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
IS31BL3508A-STLS2-TR

IS31BL3508A-TTLS2-TR 特徵

  • Drive series strings of 10 LEDs or 3×8 LEDs
  • Over voltage protection
  • Notebook PC

概觀

IS31BL3508A is a boost converter featuring an integrated MOSFET switch designed for driving series strings of LED or other device. Input operating voltage range is 2.7V~5.5V. The device regulates the LED load current is set using an external, low value sensing resistor. The device adjusts the PWM duty cycle of the switch to maintain the voltage at the FB pin at a value of 0.3V. The IS31BL3508A operates at a constant switching frequency of 1.0MHz to allow for small component size. IS31BL3508A features an over voltage shutdown pin which prevents the output voltage from exceeding 38V (typ.) in the case of an open circuit condition. The device is offered in a TSOT-23-6 and SOT-23-6 package and a temperature rating from -40°C ~ +85°C.