TPS3808G12DRVTG4

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The TPS3808G12 DRVTG4 is a supervisory integrated circuit (IC) from Texas Instruments. It is used to monitor power supply signals from multiple sources, such as voltage and current, and is suitable for use in automotive applications. It detects supply voltage anomalies, including overvoltages and undervoltages, along with any rapid changes in current draw or load conditions, such as short circuits or overcurrents, and then triggers a reset signal. This reset signal can either be an active low, active high, open drain type or an open collector type signal, depending on the configurations set on the IC.

The TPS3808G12DRVTG4 is designed to meet the needs of automotive applications, and so offers the capability to withstand harsh operating conditions. It features a wide operating temperature range of -40°C to +125°C, and can also withstand overvoltages up to +36V. It also has the ability to detect rises in supply voltage up to +70V. It is also rated for 5000 cycles of power-on reset/power-off reset.

The TPS3808G12DRVTG4 also features a low quiescent current of 60µA, allowing it to be used in power sensitive applications. It also offers adjustable delay time for the reset signal, allowing it to suit different applications with varying latency requirements. It is available in both an 8-pin SOIC and a 6-pin SOT23 package.

The working principle of the TPS3808G12DRVTG4 is simple but effective. It is designed to monitor the voltage, current, and temperature of the power supply, and to provide a reset signal when any of these conditions exceed the programmed parameters. A voltage monitor then compares the supply voltage with a pre-programmed threshold value, and if it exceeds the threshold value, it triggers an active low reset signal.

The TPS3808G12DRVTG4 is a versatile and robust integrated circuit, offering an attractive solution for automotive applications. It has the capability to withstand harsh environmental conditions, as well as offering adjustable delay times, reset active low/high signals, and low quiescent current consumption. It is a great choice for any application that requires reliable power supply monitoring.

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