XC6108C16AMR-G

The XC6108C16AMR-G is a supervisor chip from the Power Management Integrated Circuits (PMIC) category from X-FAB. It is an 8-pin package device comprising of a bandgap reference, two comparators, two digital inputs as well as two push-pull outputs. This semi-custom integrated circuit offers a number of features and functions for basic power supply monitoring, voltage detection and device protection.

The primary application of the XC6108C16AMR-G includes supervision of main and secondary power sources, voltage detection and level shifters in mobile, portable and embedded applications. It is designed to withstand a wide range of supply voltages, temperatures as well as harsh environments. It works accurately across a wide temperature range of -40°C to +85°C.

The XC6108C16AMR-G is built on an advanced 7-micron CMOS technology and features an external SOT-23-6 package. It has three different threshold voltage ranges of 2.6V, 3.1V and 3.5V that can be selected externally. The operating current of this IC is quite low, which is 2.5μA or less depending upon the application.

The IC is equipped with a power-on reset (POR) circuit that keeps track of power loss or brown-out conditions. There is also an integrated voltage detector (VDD) circuit that monitors the power supply voltage below a certain threshold. Other features supported by the XC6108C16AMR-G include an active-high push-pull output that can be configured as an interrupt or a reset. It also features a 10ms reset duration, a reset assertion time of 250μs, and a reset assertion delay of 600μs.

The XC6108C16AMR-G also provides a programmable reset delay (RESET/delay) as well as an open-drain output and manual reset control. This latter feature is handy for production testing as well as for debugging the system. In addition, the IC offers an internal 500ms or 3s timeout period with an adjustable polarity. This feature enables it to detect intermittent power-down conditions.

The working principle of the XC6108C16AMR-G is quite simple. It compares the input voltage level against an internally set threshold voltage. Whenever the voltage level falls below the threshold, the IC triggers an active-low reset signal and also asserts an interrupt signal if enabled. The reset signal can be used to reset the system and the interrupt signal can be used to further alert the system. Once the voltage returns to a safe level, the reset signal is de-asserted and the IC resumes its normal operation.

In conclusion, the XC6108C16AMR-G from X-FAB is a complete system supervisory IC designed for employing in the majority of embedded, portable and mobile applications. This IC offers a wide range of features such as voltage detection, power-on reset, timeout function and manual reset control. It also has numerous external pins that can be easily configured to suit various supervisory functions.