TPS3851G18EDRBR

Supervisors Overview

The TPS3851G18EDRBR is a high-accuracy voltage supervisor featuring an integrated watchdog timer, manufactured by Texas Instruments. It operates within a supply voltage range of 1.6 V to 6.5 V and provides a fixed threshold voltage of 1.8 V with 0.8% accuracy. The device delivers a low supply current of 10 μA (typical) and includes a manual reset input alongside open-drain outputs. It supports common rails from 1.8 V to 5.0 V and offers precision undervoltage monitoring with 4% and 7% thresholds. The component is housed in an 8-pin VSON package measuring 3 mm × 3 mm.

Supervisors Feature Summary

• Integrates a user-programmable watchdog timer with factory-programmed precision reset timers for system reliability.
• Provides high-accuracy voltage supervision with 0.8% threshold accuracy and low typical supply current.
• Features a manual reset input and open-drain output configuration for flexible interface integration.

Supervisors Applications

• Surround view system electronic control units
• Precision undervoltage monitoring for common power rails
• System reset management in automotive electronics

Supervisors Procurement Notes

Verify the specific suffix 'EDRBR' against the manufacturer's official datasheet to confirm the tape-and-reel packaging format and ensure compatibility with automated assembly processes. Confirm that the 1.8 V threshold aligns with the target rail voltage requirements for the intended application design.

Supervisors Selection Notes

Select this component when a fixed 1.8 V supervisory threshold is required with integrated watchdog functionality. It is suitable for designs needing low quiescent current and high accuracy without the need for external timing components or adjustable threshold settings.

Supervisors Part Context

This part belongs to the TPS3851 family of high-accuracy voltage supervisors. The series is designed for applications requiring precise monitoring of power rails with minimal external component count. The G18 variant specifically targets systems operating around the 1.8 V logic level standard.

Supervisors Replacement Considerations

TPS3851G18EDRBT is a parameter-equivalent alternative available in cut-tape packaging.