Linear Technology Introduces Precision Three-Channel Power Monitor

Photocoupler

Linear Technology Corporation (Linear Technology Corporation) Triple Supply Monitor LTC2911 is introduced, as low as 0.5V for the device of the low-pressure system, having a power failure alarm function. In some applications, the monitoring of the main input power supply is as important as the monitoring of the intermediate bus voltage. The purpose is to provide the host with an early warning of power failure and a signal shutdown procedure. In addition to the three voltage inputs, the LTC2911 provides a power fault input and output to support this function with a threshold accuracy of 1.5% over the entire operating temperature range.

The LTC2911 is suitable for a wide variety of applications, including web servers, desktop or notebook computers, and automotive or industrial electronics. The first channel monitors 3.3V, the second channel monitors the preset value of 1.2V to 5V, and the third channel can be adjusted to 0.5V. This versatility makes the LTC2911 easy to use in similar designs with different supply voltages. The interference filtering process ensures a reliable reset operation by minimizing false triggering. The reset timeout period can be selected internally (200ms) to minimize the number of components or externally. In addition, the same reset timer pin can also be used to latch the reset pin state and replace the reset operation, which is useful in margining applications (this application often requires testing under supply voltage conditions that may cause a system reset). system).

The LTC2911 is available in a variety of voltage options depending on which three voltages need to be monitored. Commercial and industrial versions offer different operating temperature ranges from 0°C to 70°C and -40°C to 85°C. The LTC2911 is available now in 8-lead TSOT-23 and 3mm x 3mm DFN packages. The 1,000-piece purchase price is $1.52 per piece. For more product selection and additional information, please visit