SX9513ETSTRT

Overview

The SX9513ETSTRT is an 8-button capacitive touch sensor controller with integrated LED drivers and analog outputs, designed for TV applications. It features a 24-lead TSSOP package and operates over an ambient temperature range of -40°C to +85°C. The device supports a core supply voltage (VDD) from 2.7V to 5.5V and an I/O supply voltage (SVDD) from 1.65V to 5.5V. Key electrical specifications include a typical operating current of 600µA and a sleep current of 330µA. It provides 8-channel capacitance sensing with offset compensation up to 40pF, 8-channel LED drivers with 15mA output capability, and two 6-bit DAC programmable analog outputs.

Feature Summary

• Autonomous operation with programmable button sensitivities and LED breathing functions without external I2C communication
• Supports metal overlay UI design for reliable proximity and button detection
• Includes three individual LED driver engines for advanced lighting control with blink and breathing capabilities
• Features simple 400kHz I2C serial interface with interrupt-driven communication via NIRQ output

Applications

• LCD TVs and Monitors
• White Goods
• Consumer Products and Instrumentation
• Automotive Interfaces
• Mechanical Button Replacement

Procurement Notes

Verify the specific ordering suffix ETSTRT corresponds to the 24-lead TSSOP package variant as listed in the official Semtech ordering information. Confirm that the B-version designation is not required, as standard and B-versions differ only in pre-programmed I2C addresses. Ensure compatibility with the host system's I2C voltage levels and pull-up requirements before finalizing procurement.

Selection Notes

Select the SX9513ETSTRT when proximity sensing is not required, distinguishing it from the SX9512 series which includes this feature. Choose the TSSOP-24 package if board space constraints favor surface-mount technology over QFN. Consider the separate core and I/O supply requirements to ensure appropriate power rail availability for VDD and SVDD within the specified voltage ranges.

Part Context

The SX9513ETSTRT belongs to the SX9512/12B and SX9513/13B family of capacitive touch controllers. These devices are engineered for TV applications, offering integrated solutions for touch sensing, LED driving, and buzzer control. The family shares common architectural features but varies in functionality, such as the inclusion of proximity sensing in the SX9512 variants.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. The SX9512 series may serve as a functional alternative if proximity sensing is needed, though pinouts and features differ slightly.