XC6122C319MR-G

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PMIC Supervisors encompasses a variety of dedicated ICs with primary functions of providing adjustable power on/off sequencing, detecting and generating system-level reset signals, providing maximum power sequencing, enforcing manual reset, and other functions to protect the processor and other integrated components.

The XC6122C319MR-G is a single control high-performance reset supervisor IC offered in a compact TDFN measuring 1.6mm × 2.0mm. This series of ICs are specifically designed to monitor power-up/down supply and system reset functions, providing manual reset control and adjustable power On/Off sequencing. These ICs features a built-in reset output buffer and manual reset circuit, providing system reset signals that keep supply voltages and system power in check and guarantee continuous system operation.

The XC6122C319MR-G IC provides the world\'s lowest operating power consumption for this type of IC with an operating voltage of 2V to 5.5V. With an extremely low power consumption of 0.55uA (at 1.8V and 25ºC), these reset ICs are ideal for use in battery-powered systems, allowing for significantly extended battery life. This IC offers a wide selection of reset response times, from 0.14secs to 0.2secs, allowing for easy customization for a wide range of applications.

The XC6122C319MR-G is suitable for any system requiring an adjustable power on/off sequencing, reset and power monitoring functions, like in wireless networking applications, 3G and 4G cellular communications, GPS applications, automotive electronics, medical and industrial automation systems. This extendable reset features various combination of reset pins, programmable manual reset and reset timeout in order to meet the varying needs of a wide range of applications.

The working principle of the XC6122C319MR-G IC is quite simple. During normal operation, an internal logic circuit senses the system power and forces the reset signal to the active-low or open-drain output. The reset duration depends on which resetIC is selected and how it is configured. If manual reset is used, then the output is active only as long as the MR pin is held low. Once the active-low reset pulse is detected, the system is restarted and the reset signal is disabled.

To use the XC6122C319MR-G IC in a system, it is necessary for the power supply voltage to be monitored. The reset pin is then connected to the supply voltage and a logic voltage, which is usually pulled low. The logic levels need to be adequately designed to prevent any unexpected low logic level, preventing an automatic reset in the system.

A number of other features have been incorporated in the XC6122C319MR-G IC that provide customer convenience, such as an on-board watchdog timer, an additional power down mode and an externally programmable pulse width adjustment function. The watchdog timer helps monitor the system’s health, while the power down mode allows the Circuit to be powered off manually and remotely. The externally programmable pulse width adjustment sets the output reset pulse duration.

The XC6122C319MR-G is an ideal IC for any system requiring adjustable power on/off sequencing, reset and power monitoring functions due to its low power consumption and wide range of reset response times. Its on-board watchdog timer and additional power down mode further enhances its performance, making it an ideal choice for wireless networking, cellular communications, GPS, automotive electronics, medical and industrial automation systems.

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