TPS3126E18DBVT: High-Performance Voltage Supervisor IC for Reliable Power Management
TPS3126E18DBVT: The Ultimate Voltage Supervisor IC for Robust Power Management
The TPS3126E18DBVT from Texas Instruments is a cutting-edge, single-channel voltage supervisor IC engineered to deliver unparalleled reliability in power supply monitoring. This advanced integrated circuit ensures system stability by providing precise voltage detection and reset functionality, making it indispensable for modern electronic designs. In this comprehensive guide, we explore the technical specifications, applications, and advantages of this exceptional component.
Product Overview
- Manufacturer: Texas Instruments
- Part Number: TPS3126E18DBVT
- Category: Power Management ICs (PMIC) - Voltage Supervisors
- Package: SOT-23-5 (Compact Surface Mount)
As a member of Texas Instruments' renowned power management IC family, the TPS3126E18DBVT specializes in monitoring power supply voltages with exceptional accuracy. Its compact form factor and robust performance make it suitable for a wide range of applications, from portable electronics to industrial control systems.
Detailed Technical Specifications
1. Precision Voltage Monitoring
The TPS3126E18DBVT features a fixed voltage threshold of 1.71V, providing reliable detection of under-voltage conditions. This precision ensures system protection against power fluctuations that could compromise performance.
2. Advanced Reset Functionality
With a minimum reset timeout of 100ms, this IC guarantees adequate stabilization time for connected components after power-up or voltage recovery events. The active-low reset output (open-drain configuration) offers superior design flexibility.
3. Robust Environmental Performance
Operating across a temperature range of -40 C to 85 C, the TPS3126E18DBVT maintains consistent performance in extreme conditions, making it ideal for automotive, industrial, and outdoor applications.
4. Space-Efficient Design
The SOT-23-5 package (SC-74A) minimizes board space requirements while ensuring excellent thermal characteristics. This compact footprint is particularly valuable in space-constrained designs.
Key Features and Benefits
- Single-Channel Monitoring: Dedicated supervision of one critical voltage rail
- Low-Power Operation: Optimized for energy-efficient designs
- Wired-OR Capability: Open-drain output allows multiple supervisors to share a common reset line
- High Noise Immunity: Reliable operation in electrically noisy environments
- Cost-Effective Solution: Provides essential monitoring functions without unnecessary complexity
Comprehensive Applications
The TPS3126E18DBVT finds extensive use across multiple industries:
1. Embedded Systems
Ensures proper microcontroller and FPGA initialization in:
- IoT devices
- Smart sensors
- Wearable technology
2. Consumer Electronics
Provides reliable power management for:
- Smartphones and tablets
- Digital cameras
- Home automation systems
3. Industrial Automation
Critical for maintaining system integrity in:
- PLC controllers
- Motor drives
- Process control equipment
4. Automotive Electronics
Supports robust operation in vehicle systems including:
- Infotainment systems
- ADAS components
- Telematics units
Design Considerations and Implementation
When integrating the TPS3126E18DBVT into your design, consider these best practices:
- Power Supply Decoupling: Include a 0.1 F ceramic capacitor near the VDD pin for optimal noise immunity
- Reset Output Configuration: Use an appropriate pull-up resistor (typically 10k ) for the open-drain output
- PCB Layout: Minimize trace lengths between the supervisor and monitored device
- Threshold Selection: Ensure the 1.71V threshold aligns with your system requirements
Comparative Advantages
The TPS3126E18DBVT outperforms competing solutions through:
| Feature | TPS3126E18DBVT | Typical Competitors |
|---|---|---|
| Threshold Accuracy | 1.5% | 2-3% |
| Reset Timeout | 100ms (min) | 200ms (typical) |
| Operating Temp Range | -40 C to 85 C | 0 C to 70 C |
| Package Size | SOT-23-5 | SOT-143 or larger |
Frequently Asked Questions
Q: Can the TPS3126E18DBVT monitor multiple voltage rails?
A: No, this is a single-channel supervisor. For multi-voltage monitoring, consider using multiple devices or a multi-channel supervisor IC.
Q: What is the typical current consumption?
A: The device typically consumes 5 A, making it suitable for battery-powered applications.
Q: Is the voltage threshold adjustable?
A: No, the TPS3126E18DBVT has a fixed 1.71V threshold. Texas Instruments offers other variants with different threshold voltages.
Why Choose Texas Instruments' TPS3126E18DBVT?
Texas Instruments' reputation for quality and reliability extends to the TPS3126E18DBVT voltage supervisor. With over 30 years of power management IC expertise, TI delivers:
- Industry-leading manufacturing quality
- Comprehensive technical documentation
- Global supply chain reliability
- Exceptional customer support
Purchasing Information
The TPS3126E18DBVT is available through authorized distributors worldwide. Typical delivery options include:
- Standard shipping (5-7 business days)
- Expedited shipping (2-3 business days)
- Bulk quantities for production runs
Conclusion
The TPS3126E18DBVT represents the pinnacle of voltage supervisor IC technology, combining precision monitoring with robust performance in a compact package. Whether you're designing consumer electronics, industrial equipment, or automotive systems, this Texas Instruments component provides the reliability and performance needed to ensure system integrity.
For engineers seeking a proven solution for power management challenges, the TPS3126E18DBVT offers an optimal balance of features, size, and cost-effectiveness. Its widespread adoption across industries testifies to its exceptional quality and performance.
Ready to incorporate the TPS3126E18DBVT into your design? Contact our technical sales team today for volume pricing, sample requests, and design support.