LTC1728HS5-5#TRPBF - Microprocessor Supervisory Circuit

The LTC1728HS5-5#TRPBF is a high-performance microprocessor supervisory circuit designed and manufactured by Linear Technology, now part of Analog Devices. This precision monitoring device is engineered to maintain system integrity by monitoring the power supply voltage in digital systems. It ensures that the microprocessor and other critical system components operate within safe voltage levels, making it an essential component for reliable system operation.

This supervisory circuit is particularly suitable for portable and battery-powered electronics due to its low power consumption and small footprint. The LTC1728HS5-5#TRPBF is designed to assert a reset signal whenever the VCC supply voltage falls below its fixed threshold of 4.63V (for the 5V version), ensuring that the system resets cleanly during power-up, power-down, and brownout conditions.

The device features a precise factory-trimmed threshold, a 200ms minimum reset timeout delay that provides adequate time for the system to stabilize, and a low supply current of only 10µA, making it highly efficient for power-sensitive applications. It is available in a compact 5-lead SOT-23 package, which is ideal for space-constrained applications.

Key features of the LTC1728HS5-5#TRPBF include:

• Fixed Reset Threshold Voltage: 4.63V for the 5V version
• Minimum 200ms Reset Timeout Delay
• Low Supply Current: 10µA
• Guaranteed Reset Output Down to VCC = 1V
• Wide Operating Temperature Range: -40°C to 125°C
• Compact 5-Lead SOT-23 Package

This device is also characterized by its robustness and reliability, with over-temperature protection and the ability to operate over a wide temperature range, making it suitable for harsh environments. The LTC1728HS5-5#TRPBF is available in tape and reel packaging, denoted by the 'TRPBF' suffix, which facilitates automated assembly and is ideal for high-volume production.

Whether you are designing a complex digital system or a simple microcontroller board, the LTC1728HS5-5#TRPBF provides the necessary protection and stability for your application. Its precision voltage monitoring and low power consumption make it an excellent choice for enhancing system reliability and performance.