XC6122A436MR-G

Supervisors Overview

The XC6122A436MR-G is a high-precision voltage detector with watchdog function and ON/OFF control, manufactured by Torex Semiconductor Ltd. It operates within a supply voltage range of 1.6V to 5.0V and features a fixed detect voltage threshold of 3.6V. The device incorporates CMOS process technology for low current consumption, with a typical operating current of 12µA and static current of 5µA. It provides an N-channel open-drain output configuration and includes a built-in delay circuit for release delay times ranging from 3.13ms to 400ms. The watchdog timeout period is selectable from 50ms to 1.6s. The component is housed in a SOT-25-5 package and supports surface mount mounting. It functions reliably across an operating temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Integrates voltage detection with watchdog timer functionality in a single CMOS IC
• Features internal EN/ENB pin control to independently manage watchdog function state
• Eliminates need for external components due to built-in delay circuits
• Provides high-precision detection via laser-trimmed reference voltage source

Supervisors Applications

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

Supervisors Procurement Notes

Verify the specific suffix codes against official Torex documentation to confirm exact threshold voltage and timeout settings. Ensure the ordering part number matches the required detect voltage and package type. Cross-reference RoHS compliance status with current manufacturer declarations. Confirm availability through authorized distributors as standard lead times may vary. Validate that the SOT-25-5 footprint aligns with PCB design requirements before final procurement.

Supervisors Selection Notes

Select this component when a combined voltage supervisor and watchdog timer is required for space-constrained designs. The fixed 3.6V threshold suits applications monitoring 3.3V or similar logic levels. Consider the low quiescent current for battery-powered systems. Verify that the open-drain output interface is compatible with the target microcontroller input requirements. Ensure the selected watchdog timeout duration meets the system's maximum allowable processing interval without triggering false resets.

Supervisors Part Context

This part belongs to the XC6121/XC6122/XC6123/XC6124 series of voltage detectors. The series utilizes laser trimming technology to achieve high accuracy in detect voltages. These ICs are designed for applications requiring reliable power management supervision. The family offers various detect voltage increments and watchdog timeout options to suit different system architectures. All members share similar pin configurations and operational principles.

Supervisors Replacement Considerations

Direct substitutes include other XC6122 series variants with matching 3.6V thresholds and SOT-25 packages. Verify functional equivalence regarding watchdog timeout periods and release delay times. Check compatibility of output driver characteristics with existing circuitry. Ensure thermal performance and operating temperature ranges meet application specifications.