QT150-DG

Overview

The Microchip Technology QT150-DG is a capacitive touch sensor IC designed for applications requiring up to five independent input channels. It operates within a supply voltage range of 3V to 5.5V and draws a typical supply current of 2.5mA. The device features a 14-bit resolution for precise sensing capabilities. It supports up to five LED driver channels, allowing integrated visual feedback control. The component is available in an 8-DIP package with a 0.300-inch width, suitable for through-hole mounting. It functions reliably across an operating temperature range of 0°C to 70°C.

Feature Summary

• Supports up to five independent capacitive touch input channels
• Integrates up to five dedicated LED driver channels for status indication
• Provides high-resolution sensing with 14-bit resolution capability
• Operates on a wide supply voltage range from 3V to 5.5V

Applications

• Consumer electronics touch interfaces
• Appliance control panels
• Industrial human-machine interfaces
• Medical device user inputs

Procurement Notes

Verify the specific part number suffix against official Microchip documentation to confirm package type and temperature grade. Note that this component may be listed as obsolete or not recommended for new designs; check current availability and lifecycle status before procurement. Ensure compatibility with existing PCB footprints for the 8-DIP configuration.

Selection Notes

Select this component when a low-pin-count solution for multi-touch sensing is required without complex external processing. Consider the 14-bit resolution for sensitivity requirements and the integrated LED drivers to reduce external component count. Verify that the through-hole 8-DIP package aligns with the target assembly manufacturing process and mechanical constraints.

Part Context

The QT150-DG belongs to Microchip's family of capacitive touch sensors, which are designed to replace mechanical switches in various electronic devices. These sensors offer improved reliability and user experience by eliminating moving parts. The DG suffix typically denotes the DIP package variant, distinguishing it from surface-mount options within the same functional family.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material. Consult Microchip Technology directly for current equivalents or updated components if this part is obsolete.