Texas Instruments

TPS3839G33DBZT

TPS3839G33DBZT Description

The TPS3839G33DBZT from Texas Instruments is a high-performance, single-channel voltage supervisor designed for precision monitoring of 3.3V power supplies. Housed in a compact SOT23-3 package, this IC ensures reliable system reset functionality with an active-low reset signal and a fixed 120ms minimum reset timeout. It features a 3.08V threshold voltage, making it ideal for applications requiring tight voltage tolerance. The device is RoHS3 compliant, REACH unaffected, and rated for MSL 1 (Unlimited), ensuring compatibility with lead-free and moisture-sensitive assembly processes. Its surface-mount design and tape & reel (TR) packaging streamline high-volume manufacturing.

TPS3839G33DBZT Features

• Precision Monitoring: Fixed 3.08V threshold with ±1.5% accuracy for robust voltage supervision.
• Low Power Consumption: Minimal quiescent current, enhancing energy efficiency in battery-operated systems.
• Compact Form Factor: SOT23-3 package saves board space in space-constrained designs.
• Reliable Reset Timing: Guaranteed 120ms minimum reset delay ensures stable system initialization.
• Wide Compliance: Meets ROHS3, REACH, and EAR99 standards for global deployment.
• No Programmability: Simplified design with fixed thresholds reduces configuration complexity compared to programmable supervisors.

TPS3839G33DBZT Applications

• Embedded Systems: Ensures reliable microcontroller (MCU) reset in IoT devices and industrial controllers.
• Consumer Electronics: Voltage monitoring in smart home devices, wearables, and portable gadgets.
• Automotive Electronics: Supports power management in infotainment and telematics systems (non-safety-critical).
• Industrial Automation: Protects PLCs and sensors from undervoltage conditions in harsh environments.
• Medical Devices: Provides fail-safe reset functionality in diagnostic and monitoring equipment.

Conclusion of TPS3839G33DBZT

The TPS3839G33DBZT stands out for its precision, reliability, and simplicity, making it a superior choice for 3.3V systems requiring deterministic reset behavior. Its fixed threshold eliminates configuration overhead, while the compact package and industry compliance ensure broad applicability. Ideal for cost-sensitive and space-constrained designs, this supervisor IC delivers critical protection against power anomalies, enhancing system stability across consumer, industrial, and automotive applications.