通道數 18
三原色光模式 6
Γ修正 External
接口 I2C
音频同步器 No
自動調光 No
電壓 - 電源 2.7-5.5
腳位/封裝 GR = SOP
文件 Eval Board, Video, App Note
狀態 Prod
產品系列 31 = 商業/工業模擬
產品類別 FL = 灯效LED(FxLED)驅動
IC代碼 3218
焊接 L = 無鉛
温規 S2 = 工業級 (-40ºC to 85ºC)

IS31FL3218-GRLS2 特徵

  • 2.7V to 5.5V supply I2C interface, automatic address increment function Internal reset register
  • Modulate LED brightness with 256 steps PWM Each channel can be controlled independently
  • QFN-24 (4mm×4mm), SOP-24 packages

概觀

IS31FL3218 is comprised of 18 constant current channels each with independent PWM control, designed for driving LEDs. The output current of each channel can be set at up to 38mA (Max.) by an external resistor. The average LED current of each channel can be changed in 256 steps by changing the PWM duty cycle through an I2C interface. The chip can be turned off by pulling the SDB pin low or by using the software shutdown feature to reduce power consumption. The slave address is fixed “1010 1000”. IS31FL3218 is available in QFN-24 (4mm × 4mm) and SOP-24 packages. It operates from 2.7V to 5.5V over the temperature range of -40°C to +85°C.