MIC708TM

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PMIC - Supervisors, or PMICs, are devices that provide system-level supervisor functions, providing protection against power supply transients, detecting shift of system dynamic conditions, and maintaining system level performance. MIC708TM is a microprocessor-controlled power supply supervisor which provides an exceptionally wide operating range from 0.6V to 18V and features configurable options. It is suitable for applications, such as automotive and industrial, that require monitoring of multiple voltage sources and system safety functions.

The MIC708TM is a microcontroller-based design which uses a low-power 8-bit processor to continuously monitor and control the power supply conditions. It monitors voltage in both the positive and negative domains, and if a voltage range is exceeded, it can automatically take action, such as reducing the voltage or shutting down the system, to protect it from injury. The MIC708TM has programmable voltage thresholds, so it can be adapted to the specific operating conditions of the system and its load.

The MIC708TM includes a wide range of external pins, which are used to configure specific operating parameters and system states. These pins include a manual reset (MR), reset output (ROut), reset active (RActive), voltage and supply status inputs (VinS, PWDnS, PWRupS), and a mode select register (MSEL). The MR pin can be connected to an external push-button to manually reset the system and the ROut pin can be connected to a RTC or similar device to provide external control; the RActive pin can be used to monitor the state of the reset.

The MIC708TM also includes an on-chip watchdog timer, which is used to detect failures or malicious operations within the system. The watchdog can be configured to trigger an interrupt or to reset the system if no interrupts are detected within a predetermined period of time. The MIC708TM also has a programmable fail-safe fault input, which can be used to detect a system shutdown or over-temperature condition.

The MIC708TM is also designed to withstand extreme environmental conditions, such as shock and vibration, and to guarantee reliable operation under a wide range of hot and cold temperatures. The device has built-in self-protection functions and is capable of withstanding inrush currents up to five times its rated power requirement. The MIC708TM offers an industry-leading operating temperature range of -40 °C to +125 °C.

The MIC708TM is an ideal PMIC for applications where power supply monitoring, system safety, and temperature protection are essential. It provides an easy-to-use solution for system reliability, cost-effectiveness, and long-term performance.

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