Texas Instruments TPS61381-Q1 400kHz 40V 15A Boost Converter

Introduction

The Texas Instruments TPS61381-Q1 is a highly efficient automotive bidirectional boost converter and LDO charger designed specifically for backup power systems. With its robust features and compact design, it is well-suited for applications requiring reliable power management, particularly in automotive environments.

Part Description

The TPS61381-Q1 operates with a maximum output voltage of 40V and integrates an I2C configurable LDO charger, making it compatible with various battery chemistries including NiMH, Li-Ion, LiFePO4, and supercapacitors. This device is engineered to handle load-dump conditions, ensuring stability and reliability in automotive applications. It features a programmable boost function with a current limit ranging from 5A to 15A, and operates efficiently over a wide input voltage range of 0.5V to 12V. Additionally, the TPS61381-Q1 includes a battery state-of-health detection function, enhancing its utility in backup power systems.

Applications

• Emergency call systems (eCall)
• Backup power systems in automotive applications
• Battery management systems
• Automotive TBOX (Telematics Box)
• Power supply for automotive sensors and devices

Industries

• Automotive
• Consumer Electronics
• Telecommunications
• Industrial Automation
• Renewable Energy Systems

Usage Ideas

1. Emergency Call System: Design a backup power system for an emergency call module in vehicles, ensuring that the system remains operational even during power failures.
2. Battery Management System: Create a battery health monitoring system that utilizes the TPS61381-Q1 to charge and maintain various battery types, providing real-time health data.
3. Telematics Device Power Supply: Develop a power supply solution for telematics devices that require stable voltage and current, ensuring reliable data transmission and device operation.

Conclusion

The Texas Instruments TPS61381-Q1 is a versatile and efficient boost converter that meets the demanding requirements of automotive applications. Its ability to support multiple battery chemistries, combined with features like battery health detection and robust voltage handling, makes it an ideal choice for backup power systems and other critical applications. Whether in emergency response systems or advanced automotive electronics, the TPS61381-Q1 provides a reliable solution for power management needs.