MTCH652-I/SS

Sensor And Detector Interfaces Overview

The MTCH652-I/SS is a compact boost converter with 19 high-voltage level shifters, designed for driving capacitive touch line drivers. It operates on a 1.8V to 5.5V input supply and features an internal boost circuit driven by an external PWM signal. The device supports selectable output voltages of 6V, 8V, 10V, 12V, 14V, 16V, and 18V. It includes configurable current limiting (200 mA to over 1.5 A) and soft-start functionality to prevent system brown-outs. Communication is handled via a high-speed SPI interface up to 1 MHz, with an independent Output Enable pin.

Sensor And Detector Interfaces Feature Summary

• Integrated voltage boost circuit with selectable output levels
• Configurable current limiting and automatic soft-start protection
• Independent hardware Output Enable control
• Built-in discharge circuit for rapid voltage reduction

Sensor And Detector Interfaces Applications

• Capacitive touch screen controller line drivers
• Liquid detection systems requiring high-voltage sensing
• Embedded systems with limited PCB space for power management

Sensor And Detector Interfaces Procurement Notes

Verify the specific ordering suffix matches the required package type. The -I/SS designation indicates an industrial temperature range and SSOP-28 packaging. Confirm that the design utilizes an external PWM source for the OSCIN pin, as this component generates its own boost voltage unlike the MTCH650 variant.

Sensor And Detector Interfaces Selection Notes

Select this part when an integrated boost solution is preferred over external components. Ensure the host microcontroller can provide the necessary PWM frequency and duty cycle for the boost regulator. Verify that the 19-channel output count meets the application requirements, as the MTCH650 offers 21 channels but lacks the internal boost.

Sensor And Detector Interfaces Part Context

This component belongs to the MTCH650/2 family of programmable voltage boost devices from Microchip Technology. It shares the same serial interface and latch structure as the MTCH650 but distinguishes itself by including an internal switching transistor and diode for the boost converter, eliminating the need for an external boost IC.

Sensor And Detector Interfaces Replacement Considerations

MTCH650-I/SS requires an external boost generator. MTCH652T-I/MV uses a UQFN-28 package instead of SSOP.