XC6122A638ER-G

Supervisors Overview

The XC6122A638ER-G is a high-precision voltage monitor with an integrated watchdog timer manufactured by Torex Semiconductor. It operates within a supply voltage range of 1.0 V to 6.0 V and features a fixed detection threshold of 3.8 V. The device utilizes a CMOS process technology, drawing a typical operating current of 12 µA and a static current of 5 µA. It provides a reset delay time of 100 ms and employs an N-channel open-drain output configuration. The component is housed in a 6-USPC (1.8x2 mm) surface-mount package and supports an industrial operating temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Integrates a watchdog timer function with selectable timeout periods for microprocessor monitoring.
• Features laser-trimmed internal detection voltages ranging from 1.6 V to 5.0 V in 0.1 V increments.
• Includes an EN/ENB pin that allows independent control of the watchdog function while maintaining voltage detection.

Supervisors Applications

• Microprocessor watchdog monitoring and reset circuits
• Memory battery backup circuits
• System power-on reset circuits
• Power failure detection

Supervisors Procurement Notes

Verify the specific suffix ER-G corresponds to the USP-6C package and standard reel packaging when ordering. Confirm the detection voltage code matches the required 3.8 V threshold for your application design. Ensure compatibility with the 1.0 V to 6.0 V input supply range. Check RoHS compliance documentation for environmental regulations. Validate the open-drain output requirements against your system logic levels.

Supervisors Selection Notes

Select this component when a precise 3.8 V detection threshold is required for single-input voltage monitoring. The low quiescent current makes it suitable for battery-powered applications. The integrated watchdog eliminates external timing components. Verify that the 100 ms reset delay meets the system recovery timing requirements. Ensure the open-drain output can be properly pulled up to the target logic voltage.

Supervisors Part Context

This part belongs to the XC6121/XC6122/XC6123/XC6124 series of voltage detectors with watchdog functions. The 'XC6122' designation indicates a specific variant within this family, distinguished by its internal pull-up/pull-down configurations on the enable pin. These devices are designed for high-precision supervision in portable and industrial electronics using CMOS technology.

Supervisors Replacement Considerations

Cross-reference with other XC6122 variants having different detection voltage codes if the threshold differs. Consider XC6124 series equivalents if the enable pin configuration requirements vary. Verify package compatibility with USP-6C footprints before substituting with SOT-25-5 packages.