CPT007B-A01-GMR

Overview

The CPT007B-A01-GMR is a capacitive touch sensor controller from the Silicon Labs TouchXpress family, designed to replace mechanical buttons. It supports up to seven capacitive sensor inputs and features seven general-purpose outputs for host communication or LED driving. The device operates within a voltage range of 1.8 V to 3.6 V and functions across a temperature range of -40 °C to +85 °C. It utilizes a 3 mm x 3 mm x 0.55 mm QFN-20 package with SMD/SMT termination. Power consumption is specified at 200 µA in active mode and 1 µA in sleep mode, supporting wake-on-proximity functionality.

Feature Summary

• Eliminates firmware development complexity through a simple GUI-based configurator for all capacitive touch sense parameters.
• Provides moisture immunity and buzzer feedback capabilities to enhance user experience in touch interfaces.
• Integrates advanced power management features including low active current, ultra-low sleep current, and wake-on-proximity detection.

Applications

• Home appliances
• Instrument and control panels
• White goods
• Medical equipment
• Consumer electronics

Procurement Notes

Verify the specific suffix 'GMR' against official documentation to confirm reel packaging and quantity specifications. Confirm end-of-life status as related variants are marked obsolete. Ensure compatibility with existing PCB footprints for the QFN-20 package before procurement.

Selection Notes

Select this component when firmware resources are limited due to its no-code configuration approach. Choose based on the requirement for seven independent touch channels and GPIO outputs. Verify that the operating voltage and temperature ranges align with the target system environment.

Part Context

This part belongs to the CPT007B series within the TouchXpress family. It serves as a dedicated solution for adding capacitive touch controls without requiring complex microcontroller programming. The series focuses on reducing development time for user interface designs.

Replacement Considerations

Check for direct substitutes within the CPT007B family. Note that similar parts like CPT007B-A02-GU may have different pinouts or feature sets. Verify availability as some variants are discontinued.

FAQ

Does the CPT007B require custom firmware for operation?

No, the device eliminates the need for complex firmware development. All capacitive touch sense parameters can be configured using a simple GUI-based configurator.

What is the power consumption profile of the CPT007B?

The device consumes 200 µA in active mode and 1 µA in sleep mode. It also supports wake-on-proximity functionality to further optimize power usage.

How many capacitive sensor inputs does the CPT007B support?

The CPT007B supports up to seven capacitive sensor inputs with programmable sensitivity.