IS31SE5118A Datasheet | Lumissil

DESCRIPTION IS31SE5118A is an ultra-low power, 8-channel capacitive touch controller. The controller allows sleep mode and uses auto-detection for wakeup. It also provides a shield output to increase moisture immunity. The built-in hardware monitor and calibration for the environment feature is to prevent false triggers. A host MCU is required to municate with IS31SE5118A. An on-chip I²C slave controller with 400k Hz capability serves as the munication port for the host MCU. An interrupt, INT, can be configured and it is generated when a touch trigger event occurs. Trigger conditions can be configured by setting the interrupt register. IS31SE5118A can support proximity sensing. IS31SE5118A is available in TSSOP-16 and QFN-16 packages. It operates from 2.35V to 5.5V over the temperature range from -40°C to +105°C. APPLICATIONS - Touch keys for home appliances - Touch keys for industrial control FEATURES - 8-channel capacitive touch controller with readable key value - Touch threshold setting for individual key - Optional multiple-key function - Individual key calibration - Interrupt output with auto-clear and repeating - Auto sleep mode for extremely low power - Keys wake up from sleep mode - Buzzer/Melody Generator - 400k Hz fast-mode I²C interface - Operating temperature between -40°C to +105°C - TSSOP-16 and QFN-16 package - ROHS & Halogen-Free pliant package - TSCA pliance TYPICAL APPLICATION CIRCUIT (TSSOP-16) Note 1: SE5118A should be placed far away from the noise source for EMS. Note 2: RS and CS should be placed as close to the chip as possible to reduce EMI. Note 3: INT can be configured as a POW pin for melody application. Note 4: The capacitors connected to VDD and VDDC should be as close to the chip as possible to reduce EMI. Lumissil Microsystems - .lumissil. Rev:A 07/26/2023 CONFIDENTIAL PINOUT Lumissil Microsystems - .lumissil. Rev:A 07/26/2023 CONFIDENTIAL 8-CH PROGRAMMABLE CAPACITIVE TOUCH SENSOR Table of...