TPS3838J25DBVRG4 Voltage Supervisor by Texas Instruments

The TPS3838J25DBVRG4 is a high-precision voltage supervisor designed by Texas Instruments to ensure reliable operation and system stability in a wide range of electronic applications. This device is particularly well-suited for portable and battery-powered electronics where power efficiency and minimal space consumption are crucial.

This voltage supervisor operates over a supply voltage range of 1.1V to 5.5V, making it versatile for various low voltage applications. The TPS3838J25DBVRG4 features a fixed-sense threshold voltage of 2.5V, which is ideal for monitoring 2.5V power rails. When the monitored voltage falls below the 2.5V threshold, the device asserts a reset signal to help protect the system from undervoltage conditions.

The reset output of the TPS3838J25DBVRG4 is active low and employs a push-pull configuration, which eliminates the need for an external pull-up resistor and reduces component count. The device also offers a manual reset input, which provides an additional level of system control by allowing external triggering of the reset signal.

One of the key features of this supervisor is its ultra-low quiescent current of only 3µA (typical), which is essential for battery-powered applications where power conservation is a priority. The TPS3838J25DBVRG4 comes in a compact SOT-23-5 package, which is highly beneficial for space-constrained designs.

Additional features include a built-in delay before the reset signal is deasserted, ensuring that the system has stabilized before normal operation resumes. This delay can be factory-programmed at Texas Instruments to suit specific application requirements.

With its precision voltage monitoring, low power consumption, and compact form factor, the TPS3838J25DBVRG4 is an excellent choice for designers looking to enhance system reliability in applications such as handheld devices, IoT endpoints, and portable medical equipment.

To ensure reliability and performance, the TPS3838J25DBVRG4 is characterized for operation over a temperature range of –40°C to +85°C, making it suitable for various environmental conditions.

Overall, the TPS3838J25DBVRG4 voltage supervisor is a testament to Texas Instruments' commitment to providing high-quality, reliable integrated circuits for the management and protection of electronic systems.