Product Overview: TPS3809K33DBVR by Texas Instruments

The TPS3809K33DBVR is a low-power, high-precision voltage supervisor designed to monitor a single system supply voltage. Manufactured by Texas Instruments, a leader in semiconductor solutions, this integrated circuit ensures reliable operation and system integrity by providing a reset signal to the host processor when the monitored supply voltage drops below a predetermined threshold. It is an essential component for a wide range of applications, including portable and battery-powered devices, microcontrollers, and industrial equipment.

This voltage supervisor operates over a wide voltage range and is specifically set for a nominal threshold voltage of 3.3V, making it suitable for many 3.3V-powered systems. The TPS3809K33DBVR features a low quiescent current of only 9µA, which is beneficial for power-sensitive applications. Its precision supply voltage supervision is maintained over the entire temperature range, ensuring device reliability under various operating conditions.

The device comes in a compact SOT-23-3 package, which is ideal for space-constrained applications. The TPS3809K33DBVR also offers a manual reset input, which allows for an external override, providing additional flexibility and control to the user. The reset output is active low and is available in an open-drain configuration.

Key features of the TPS3809K33DBVR include:

• Supply voltage supervision range: 3.3V
• Low supply current: 9µA (typical)
• Manual reset input
• Reset timeout delay: 200ms (typical)
• Temperature range: -40°C to +85°C
• Package: SOT-23-3

The TPS3809K33DBVR's combination of low power consumption, high accuracy, and compact form factor, along with Texas Instruments' reputation for quality and reliability, makes it a top choice for designers looking to enhance system stability and protection. Whether it's being used in consumer electronics, automotive systems, or industrial controls, this voltage supervisor ensures that your application maintains optimal performance by providing a crucial safety net against power anomalies.