IS32FL3740-ZLA3

電壓 - 電源 2.7-5.5
焊接 Lead-free (RoHS Compliant)
狀態 S=NOW
腳位/封裝 eTSSOP-20
通道數 Matrix - 12
文件 Eval Board
三原色光模式 4
音频同步器 No
温規 Automotive Grade (-40C to +125°C)
類型 3740
自動調光 Yes
產品類別 FL = FxLED Driver
接口 I2C
產品系列 32 = Automotive Analog and Mixed Signal
Γ修正 Built-in
腳位/封裝 Z = TSSOP
焊料類型 L = Lead-free (RoHS Compliant)
IC代碼 3740 = 3740
Temperature Grade A3 = Automotive temp. (-40°C to 125°C)
包裝選項 blank = Tray or Tube

IS32FL3740-ZLA3 特徵

  • Supply voltage range: 2.7V to 5.5V
  • 4 current source outputs for row control
  • 3switch current inputs for column scan control
  • Up to 12 LEDs (3×4) in dot matrix
  • Programmable 3×4 (4 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 offers128 steps gamma current, interrupt and state lookup registers Individual on/off control Individual 1024 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
  • eTSSOP-20 package Preliminary Information April 2017
  • Mobile phones and other hand-held devices for LED display
  • Gaming device (Keyboard, Mouse etc.)

概觀

The IS32FL3740 is a general purpose 3×4 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 × 8 PWM data which allowing 1024 steps of linear dimming. IS32FL3740 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, IS32FL3740 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 IS32FL3740 operates from 2.7V to 5.5V and features a very low shutdown and operational current. IS32FL3740 is available in eTSSOP-20 package. It operates from 2.7V to 5.5V over the temperature range of -40°C to +125°C.