Texas Instruments

TPS3820-33DBVT

TPS3820-33DBVT Description

The TPS3820-33DBVT from Texas Instruments is a single-channel voltage supervisor IC designed for precision monitoring of power supply rails in embedded systems. Packaged in a compact SOT23-5 form factor, this supervisor ensures reliable system operation by generating a reset signal when the monitored voltage falls below the fixed threshold of 2.93V. With a 15ms minimum reset timeout, it provides sufficient delay for stable power-up sequences, making it ideal for microcontroller (MCU) and FPGA-based applications. The device is RoHS3 compliant and features a surface-mount design, suitable for automated assembly processes.

TPS3820-33DBVT Features

• Fixed Threshold Voltage (2.93V): Ensures precise monitoring for 3.3V systems without external components.
• Active-Low Reset Output: Compatible with most MCUs and FPGAs for seamless integration.
• Low Power Consumption: Optimized for battery-powered and energy-sensitive applications.
• 15ms Minimum Reset Timeout: Guarantees stable system initialization during power-up or brownout conditions.
• Wide Operating Range: Supports industrial and consumer applications with robust performance.
• Tape & Reel (TR) Packaging: Facilitates high-volume manufacturing efficiency.
• Moisture Sensitivity Level (MSL) 1: Suitable for extended storage and handling without special precautions.

TPS3820-33DBVT Applications

The TPS3820-33DBVT excels in systems requiring reliable power monitoring, including:

• Embedded Systems: Ensures MCUs and DSPs boot correctly after power disturbances.
• Industrial Automation: Provides fail-safe voltage supervision for PLCs and control modules.
• Consumer Electronics: Protects smart home devices, wearables, and IoT nodes from unstable power conditions.
• Automotive Electronics: Supports infotainment and telematics systems with robust reset functionality.
• Medical Devices: Enhances reliability in portable and diagnostic equipment.

Conclusion of TPS3820-33DBVT

The TPS3820-33DBVT is a highly reliable voltage supervisor offering precision monitoring, low power consumption, and ease of integration in space-constrained designs. Its fixed threshold and active-low reset make it a preferred choice for 3.3V systems, while its industrial-grade robustness ensures long-term reliability. Ideal for applications demanding fail-safe power management, this supervisor is a cost-effective solution for ensuring system stability across diverse industries.