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Product Detailed Parameters
- Description：IC CTLR TOUCH 8CH PROX 20QFN
- Series：-
- Mfr：Semtech Corporation
- Package：Tape & Reel (TR)
- Type：Buttons
- Proximity Detection：No
- Number of Inputs：Up to 8
- LED Driver Channels：Up to 8
- Interface：I2C
- Resolution：6 b
- Voltage - Supply：2.7V ~ 5.5V
- Current - Supply：600µA
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：20-WFQFN Exposed Pad
- Supplier Device Package：20-QFN (4x4)
- Grade：-
- Qualification：-
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Overview
The SX9513EWLTRT is an 8-button capacitive touch sensor controller with integrated LED drivers and analog outputs, designed for TV applications. It operates on a 2.7V to 5.5V core supply and 1.65V to 5.5V I/O supply. The device features 8-channel LED drivers with 15 mA output current, supporting blink and breathing functions. It includes two 6-bit DAC programmable analog outputs and a programmable buzzer driver. Power consumption is 600 uA in operating mode and 330 uA in sleep mode. It supports a 400 kHz I2C interface and operates from -40°C to +85°C.
Feature Summary
- Autonomous capacitive touch sensing with adaptive measurements for reliable detection without external dynamic programming.
- Integrated 8-channel LED driver engine supporting high current outputs with configurable blinking and breathing effects.
- Dual analog output interface providing filtered DC voltage levels corresponding to touched buttons for direct host reading.
- Programmable buzzer driver for audible feedback and interrupt-driven communication via open-drain NIRQ output.
Applications
- LCD TVs and monitors
- White goods appliances
- Consumer products and instrumentation
- Mechanical button replacement
Procurement Notes
Verify the specific ordering suffix EWLT against the manufacturer's official documentation to confirm the QFN-20 package type and reel quantity specifications. Ensure compatibility with the required SVDD and VDD supply voltages during system design validation.
Selection Notes
Select this component when proximity sensing is not required, as it lacks the dedicated proximity detection feature found in the SX9512 variant. Confirm that the 8-button capacity and dual analog output channels meet the interface requirements of the target application.
Part Context
This part belongs to the Semtech SX9512/13 series of capacitive controllers. It shares the same pinout and core functionality as the SX9512 but omits the proximity sensing capability. The 'B' suffix variants offer different pre-programmed I2C addresses for multi-device systems.
Replacement Considerations
SX9512EWLTRT offers identical physical dimensions and pinouts but adds proximity sensing functionality. SX9513BEWLTRT provides the same features with a different default I2C address. Verify register configurations when swapping between these variants.
