IS31FL3745-CLS4-TR

Status Prod
Vdd(V) 2.7-5.5
Channels Matrix - 144
Document Code
RGB Group 48
Pkg-Pin(mm) WLCSP-36 (2.93x2.93)
Ctrl. Interface I2C – 1MHz
Special Features 24kHz PWM, 8-bit PWM and Dot Correction, De-Ghost, EMI reduction, cascade synch
Package Type C = WCSP
Solder Type L = Lead-free (RoHS Compliant)
Product Family 31 = Commercial/Industrial Analog
Part Number 3745 = 3745
Product Type FL = FxLED Driver
Temperature Grade S4 = Industrial temp. (-40°C to 125°C)
Package option TR = Tape & Reel
Outpack Tape on Reel

IS31FL3745-CLS4-TR Features

  • Supply voltage range: 2.7V to 5.5V
  • 18 Current sink (Maximum)
  • Support 18 × n (n=1~8) LED matrix configurations
  • Global 256 current setting
  • SDB rising edge reset I2C module
  • Programmable H/L logic:1.4/0.4, 2.4/0.6
  • 29kHz PWM frequency
  • 1MHz I2C-compatible interface
  • State lookup registers
  • 180 degree phase delay operation to reduce Individual open and short error detect function October 2018 power noise
  • De-Ghost
  • Cascade for synchronization of chips
  • WLCSP-36 (2.93mm×2.93mm, 0.5mm ball pitch, 0.25mm ball diameter) package
  • AI-speakers and smart home devices

Overview

The IS31FL3745 is a general purpose 18×n (n=1~8) LED Matrix programmed via 1MHz I2C compatible interface. Each LED can be dimmed individually with 8-bit PWM data and 8-bit DC scaling data which allowing 256 steps of linear PWM dimming and 256 steps of DC current adjustable level. Additionally each LED open and short state can be detected, IS31FL3745 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 IS31FL3745 operates from 2.7V to 5.5V and features a very low shutdown and operational current. IS31FL3745 is available in WLCSP-36 (2.93mm×2.93mm, 0.5mm ball pitch, 0.25mm ball diameter) package. It operates from 2.7V to 5.5V over the temperature range of -40°C to +125°C.