TPS79601DRBTG4

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The TPS79601DRBTG4 is a low-noise linear voltage regulator designed by Texas Instruments. It is a monolithic buck-boost charge pump voltage regulator, specifically designed for automotive engine control systems. The TPS79601DRBTG4 can operate from a wide input voltage range, supports high load currents, has excellent efficiency and line regulation, and is both thermally and ESD protected. It is a cost-effective and efficient solution for powering automotive accessories and providing power conditioning to automotive microcontrollers.

The TPS79601DRBTG4 can activate up to eight external low side switches to enable driving loads with adjustable output voltage control. It also comes with integrated control logic to enable voltage monitoring, power sequencing, and dynamic pin control. Additionally, it features an SPI interface, allowing users to set up and adjust the device from the outside.

Application Fields

The TPS79601DRBTG4 is particularly suitable for design-intensive automotive solutions. It is well suited for powering a range of automotive applications such as in-vehicle infotainment systems, motor drive systems, engine management systems, ignition systems, transmission control systems, interior/exterior lighting systems, and wiper control systems.

Working Principle

The TPS79601DRBTG4 operates in either a buck mode, providing power to a load regulated below the battery voltage, or in a boost mode, providing power to a load regulated higher than the battery voltage. It easily switches between buck and boost operation while overcoming the questionable battery voltage level. The integrated current limit circuit ensures limited input current and thermal protection. Since the TPS79601DRBTG4 also offers integrated reverse battery protection, it is an ideal solution for designs that use either a 12V or 24V automotive battery.

The TPS79601DRBTG4 includes an adjustable voltage reference, and a real-time dynamic output voltage limiter for improved battery protection and thermal performance. It is a No-Load Quiescent Current (NLQC) device, meaning that it draws a negligible amount of current when the load current drops to zero. This helps reduce the total system power consumption.

The TPS79601DRBTG4 is AEC-Q100 Grade 0 qualified, with extended temperature range from -40°C to +125°C. It also offers ±1% voltage tolerance and 0.2% accuracy on the output current. This means that it has the necessary accuracy and stability to meet extreme automotive requirements. It also offers reverse-polarity, over-temperature and over-voltage protection, and short-circuit protection.

The TPS79601DRBTG4 enables a wide range of power sequencing solutions, such as serial sequencing, parallel sequencing and simultaneous sequencing. Serial sequencing is used to power up a series of devices such as ECU, fuel injection and immobiliser. Parallel sequencing is used to control side mirror motors and parking sensors, while simultaneous sequencing is used to control air conditioner motors and power steering motors.

In summary, the TPS79601DRBTG4 is a powerful, low-noise linear regulator for automotive applications. It offers an easy-to-use solution for powering loads and providing power conditioning. It is an ideal choice for cost-effective and efficient power conditioning solutions for automotive microcontrollers and accessories.

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