XC6121D440MR-G

Supervisors Overview

The XC6121D440MR-G is a high-precision voltage monitor manufactured by Torex Semiconductor. It operates within a supply voltage range of 1 V to 6 V and features a fixed detection threshold of 4.0 V. The device incorporates a watchdog timer and utilizes an N-channel open-drain CMOS output. It consumes a typical operating current of 12 µA and maintains a low static current of 5 µA. The component supports a reset delay time of 100 ms and functions reliably across an industrial temperature range from -40 °C to +85 °C.

Supervisors Feature Summary

• Integrates a watchdog timer function with ON/OFF control capability via the EN/ENB pin
• Utilizes laser trimming technology for fixed, high-precision detection thresholds
• Features an N-channel open-drain output configuration for direct interface with logic circuits

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 MR-G corresponds to the SOT-25-5 package and reel packaging format. Confirm the detection threshold matches the required 4.0 V application parameter. Ensure compatibility with the 1 V to 6 V operating voltage range and check RoHS compliance status for the specific manufacturing batch.

Supervisors Selection Notes

Select this component when a fixed 4.0 V threshold is required alongside integrated watchdog functionality. The low current consumption makes it suitable for battery-powered applications. Verify that the open-drain output type aligns with the system's pull-up requirements and that the 100 ms reset delay meets the timing constraints of the monitored circuit.

Supervisors Part Context

This part belongs to the XC6121 series of voltage detectors, which are designed using CMOS process technology. The series provides high-precision monitoring with built-in delay circuits, eliminating the need for external components for release delay generation. The XC6121 variant specifically includes a watchdog function controlled by an enable pin.

Supervisors Replacement Considerations

XC6121D440ML: Identical electrical specifications but in ML (SOT-89-3) package. XC6121D440ER-G: Same function in ER (SC-70-3) package. XC6123D440MR-G: Similar performance but may have different internal configurations or pinouts; verify datasheet details before substitution.