IS31FL3801-QFLS2-TR ISSI

IS31FL3801 Smart Integrated Matrix LED Driver with Touch Key Controller FEATURES GENERAL DESCRIPTION The IS31FL3801 is a general purpose 168 or 159 LED Matrix LED Driver Matrix programmed via 1MHz I2C compatible interface. Supply voltage range: 2.7V to 5.5V Each LED can be dimmed individually with 8-bit PWM 16 current sinks data, and each CSx has 8-bit DC scaling (Color Support 16n (n=1~8), 159 LED matrix Calibration) data which allowing 256 steps of linear PWM configurations dimming for each dot and 256 steps of DC current Individual 256 PWM control steps adjustable level for each CSx. 256 DC current steps for each CSx Additionally each LED open and short state can be 64 global current steps detected, IS31FL3801 store the open or short information SDB rising edge reset I2C module in Open-Short Registers. The Open-Short Registers 32kHz PWM frequency allowing MCU to read out via I2C compatible interface. 1MHz I2C-compatible interface Inform MCU whether there are LEDs open or short and Individual open and short error detect function the locations of open or short LEDs. PWM 180 degree phase shift An eleven-channel capacitive touch controller is Spread spectrum integrated with on-chip calibration logic which De-ghost continuously monitors the environment and automatically Capacitive Touch Sensor adjusts the threshold levels to prevent false triggers. Capacitive touch controller with readable key value through shared GPIO An on-chip IC slave controller with 400kHz capability and programmable slave addresses serves as the Individual sensitivity threshold setting for each communication port for the host MCU. An interrupt, INTB, touch key can be configured so it is generated when a trigger event Optional multiple-key function (touched or released) occurs. Trigger or clear condition Press and hold function can be configured by setting the interrupt register. Automatic calibration Individual key calibration IS31FL3801 is available in RoHS compliant package Interrupt output with auto-clear and repeating QFN-60 (7mm7mm). It operates from 2.7V to 5.5V over the temperature range of -40C to +105C. Auto sleep mode for extremely low power Key wake up from sleep mode 400kHz fast-mode IC interface Provides Spread Operating temperature between -40C ~ +105C QFN-60 package APPLICATIONS Home appliance touch control keys Industrial applications Gaming devices IoT devices Lumissil Microsystems www.lumissil.com 1 Rev. 0B, 08/14/2020 IS31FL3801 BLOCK DIAGRAM Block Diagram of IS31FL3801 Lumissil Microsystems www.lumissil.com 2 Rev. 0B, 08/14/2020