Texas Instruments TLC7725QPWR Voltage Supervisor

The Texas Instruments TLC7725QPWR is a high-performance, low-power voltage supervisor designed to monitor and maintain the correct operation of microprocessor (µP) systems. As a quintessential component in ensuring system reliability, this device is particularly useful in applications that are sensitive to voltage fluctuations, such as embedded systems, portable devices, and industrial equipment.

The TLC7725QPWR supervisory circuit provides a precise voltage monitoring solution with a fixed-sense threshold voltage of 4.55V. This threshold is specifically chosen to accommodate common 5V supply systems, ensuring that the device operates within safe voltage levels. When the monitored supply voltage falls below the threshold, the reset output is asserted, which remains active until the supply voltage recovers and stabilizes above the threshold for a specified period, known as the reset delay time.

This voltage supervisor comes in a space-saving TSSOP-14 package, making it ideal for applications where the printed circuit board space is at a premium. The TLC7725QPWR operates over a wide temperature range, from -40°C to 85°C, allowing for reliable performance in diverse environments.

Key features of the TLC7725QPWR include:

• Power-On Reset Generator: Automatic reset initialization when power is applied to the device.
• Voltage Monitoring: Precise monitoring of the 5V power-supply voltage with a threshold of 4.55V.
• Low Supply Current: Ideal for battery-powered applications, the device has a typical supply current of 15µA.
• Reset Signal: The active-low reset output ensures compatible interfacing with most microprocessor systems.
• Temperature Range: Operates reliably across a wide temperature range suitable for various applications.
• Package: Available in a compact TSSOP-14 package, it is designed for space-constrained applications.

Overall, the TLC7725QPWR from Texas Instruments is a robust solution for system voltage supervision, providing enhanced reliability and protection for sophisticated electronic systems. Its precise voltage monitoring capabilities and low power consumption make it an excellent choice for designers looking to enhance system stability and longevity.