通道數 Matrix - 48
三原色光模式 16
Γ修正 Built-in
接口 I2C - 1MHz
音频同步器 No
自動調光 Yes
電壓 - 電源 2.7-5.5
腳位/封裝 QFN-28 (4x4)
狀態 S=Q2/17
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 3738
焊接 L = 無鉛
温規 S4 = 工業級 (-40ºC to 125ºC)
外包裝 卷轴包
相關IC编號

IS31FL3738-QFLS4-TR 特徵

  • Supply voltage range: 2.7V to 5.5V
  • 8 current source outputs for row control
  • 6 switch current inputs for column scan control
  • Up to 48 LEDs (6×8) in dot matrix
  • Programmable 6×8 (16 RGBs) matrix size with de- ghost function
  • 1MHz I2C-compatible interface
  • Selectable 3 Auto Breath Modes for each dot
  • Auto Breath Loop Features interrupt pin inform MCU Auto Breath Loop completed
  • Auto Breath offers 128 steps gamma current, interrupt and state look up registers Individual on/off control Individual 512 PWM control steps Individual Auto Breath Mode select Individual open and short error detect function
  • 256 steps global current setting
  • Cascade for synchronization of chips
  • QFN-28 (4mm×4mm) package
  • Mobile phones and other hand-held devices for LED display
  • Gaming device (keyboard, mouse etc.)

概觀

The IS31FL3738 is a general purpose 6×8 LEDs matrix driver with 1/12 cycle rate. The device can be programmed via an I2C compatible interface. Each LED can be dimmed individually with 8-bit × 4 PWM data which allowing 512 steps of linear dimming. IS31FL3738 features 3 Auto Breathing Modes which are noted as ABM-1, ABM-2 and ABM-3. For each Auto Breathing Mode, there are 4 timing characters which include current rising / holding / falling / off time and 3 loop characters which include Loop-Beginning / Loop-Ending / Loop-Times. Every LED can be configured to be any Auto Breathing Mode or No- Breathing Mode individually. Additionally each LED open and short state can be detected, IS31FL3738 store the open or short information in Open-Short Registers. The Open-Short Registers allowing MCU to read out via I2C compatible interface. Inform MCU whether there are LEDs open or short and the locations of open or short LEDs. The IS31FL3738 operates from 2.7V to 5.5V and features a very low shutdown and operational current. IS31FL3738 is available in QFN-28 (4mm×4mm) package. It operates from 2.7V to 5.5V over the temperature range of -40°C to +125°C.