TPS3838K33DRVR - Voltage Supervisor IC by Texas Instruments

The TPS3838K33DRVR is a high-precision voltage supervisor designed and manufactured by Texas Instruments, a leader in semiconductor solutions. This compact, low-power device is an essential component for systems that require accurate monitoring of their power supply voltage to ensure reliable operation.

Operating over a voltage range of 1.1V to 5.5V, the TPS3838K33DRVR is particularly suited for battery-powered and portable applications. It features a fixed-sense threshold voltage of 3.3V, which allows it to monitor 3.3V power rails effectively. When the monitored voltage falls below the threshold, the device asserts a reset signal, which remains active until the voltage recovers and stabilizes above the threshold for a specified time period, known as the reset delay time.

The TPS3838K33DRVR comes in a small 6-pin SOT-23 package, making it an ideal choice for space-constrained applications. Its low quiescent current of just 1.5 µA (typical) ensures minimal impact on the overall power consumption of the system it is monitoring.

One of the key features of this voltage supervisor is its built-in hysteresis, which helps to prevent false triggering due to transient conditions on the monitored voltage rail. This contributes to the stability and reliability of the system, preventing unnecessary resets that could disrupt normal operation.

The TPS3838K33DRVR is also characterized by its fast response time, which is critical for systems that cannot afford lengthy delays in responding to power supply issues. This makes it an excellent choice for applications such as microcontrollers, DSPs, FPGAs, and other digital systems that require a dependable power-on reset or brown-out protection.

In summary, the TPS3838K33DRVR is a robust, precise, and energy-efficient solution for voltage supervision needs. Its small footprint, low power consumption, and fast response time make it a go-to choice for designers looking to enhance the reliability and performance of their electronic systems.