TPS3126E15DBVR

Supervisors Overview

The TPS3126E15DBVR is a voltage supervisory circuit manufactured by Texas Instruments, designed for monitoring power supply integrity in electronic systems. It operates within a supply voltage range of 0.4 V to 3.3 V and features a fixed threshold voltage of 1.43 V. The device provides a single monitored input with an active-low push-pull output. Key electrical parameters include a reset delay time of 100 ms minimum and a quiescent current of 14 uA. It supports manual reset functionality and lacks watchdog timer or battery backup switch capabilities. The component is housed in a SOT-23-5 surface-mount package and is rated for operation across a temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Provides precise voltage supervision with a fixed 1.43 V threshold for reliable power monitoring.
• Features ultra-low supply current consumption suitable for battery-powered applications.
• Includes manual reset capability allowing user-initiated system recovery.
• Delivers a stable active-low push-pull output signal for direct interface with logic circuits.

Supervisors Applications

• Monitoring microprocessor and microcontroller power supplies
• Ensuring system stability in portable electronic devices
• Providing reset signals for digital logic circuits

Supervisors Procurement Notes

Verify the specific ordering suffix DBVR confirms the reel packaging format when sourcing from distributors. Confirm that the E15 designation corresponds to the required 1.43 V threshold voltage for your design. Ensure compatibility with the SOT-23-5 footprint on your PCB layout. Check for RoHS compliance status if environmental regulations apply to your manufacturing process. Validate that the active-low output polarity matches your target controller's reset input requirements.

Supervisors Selection Notes

Select this component when a fixed 1.43 V threshold is appropriate for the target rail voltage. Consider the 100 ms reset delay to ensure adequate power-up time for downstream components. Evaluate the 14 uA quiescent current against strict power budget constraints. Verify that the SOT-23-5 package size fits within the available board space. Confirm that manual reset functionality meets system recovery needs without additional external components.

Supervisors Part Context

This part belongs to the TPS312x series of ultra-low voltage processor supervisory circuits from Texas Instruments. The series includes variants with different thresholds and packages, such as the TPS3123, TPS3125, and TPS3128. The TPS3126 specifically offers a fixed threshold option, distinguishing it from programmable counterparts. It is categorized under PMIC supervisory circuits, focusing on simple reset and power-on reset functions without complex timing or watchdog features.

Supervisors Replacement Considerations

• TPS3126E15DBVT

Supervisors FAQ

What is the reset delay time for the TPS3126E15DBVR?

The reset delay time is specified as a minimum of 100 ms.

Does the TPS3126E15DBVR include a watchdog timer?

No, the TPS3126E15DBVR does not include a watchdog timer function.