TPS65142RTGR Integrated Circuits (ICs)

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TPS65142RTGR is an advanced, low-power, dual-output, 4-A Synchronous buck power supply with multiple integrated features, including boost, bypass and sequenced output. It is a specialized power management solution from Texas Instruments that is designed for automotive applications. The TPS65142RTGR offers up to 4 fully synchronous buck regulators at up to 4 A that are optimized for fast transient response and precise output voltage regulation. It also provides an adjustable step-down converter that can be used as an output booster converter with up to 0.5 A. Its integrated power management controller and overtemperature protection provide comprehensive system safety.

The TPS65142RTGR has a typical efficiency of 92%, which is higher than the industry standard of 85%, and hence offers a lower thermal footprint and thus greater application flexibility. It features ON/OFF and I2C enable/disable for different subsystems, programmable undervoltage lockout, programmable soft start, and programmable current limit. The chip also provides an adjustable step-up/boost converter for output voltage up to 6 V.

Application Field: This specialized power management solution from Texas Instruments is suitable for a wide range of automotive applications, including lighting, HVAC, electronic climate control, motor control and power management, advanced driver assistance systems (ADAS), body electronics and infotainment systems. It is also used in navigation, navigation control, interior and exterior lighting and media systems.

Working Principle: The TPS65142RTGR is a dual-output, 4-A Synchronous buck power supply with integrated features such as boost, bypass, and sequenced outputs. It has four synchronous buck regulators, each capable of providing up to 4 A, and one adjustable step-down converter that can be used as an output booster converter for up to 0.5 A. The chip includes two additional control pins for inverting and disabling the outputs, as well as an I2C interface for programming the control parameters. The outputs can be synchronized on startup, making it suitable for applications that require precise output voltage regulation and fast transient response.

The chip is based on a proprietary INA226 current sense and voltage regulator IC. This IC is used for precise current and voltage level monitoring, providing over-current protection and up to 4 A of output current. The step-down converter offers up to 6 V output voltage, while the step-up/boost converter can provide up to 6 V. Its integrated power management controller and overtemperature protection provide comprehensive system safety. The chip also offers an adjustable soft start, overvoltage lockout, and programmable current limit.

The TPS65142RTGR has a 9.0 mm x 10.5 mm WL-CSP (wafer-level chip-scale package) package with a 0.4 mm or 0.5 mm pitch, making it suitable for automotive space-constrained applications. The integrated features and flexible control options of the TPS65142RTGR make it an ideal solution for power systems in automotive applications.

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