PT7M6223CLTA3EX

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The PT7M6223CLTA3EX is part of the family of PMIC - Supervisors designed and manufactured by Powertip Technology Co., Ltd., a leading provider of semiconductors for power management. The PT7M6223CLTA3EX is a highly integrated, low power watchdog timer with an I2C/SMBus interface, and the ability to guard against power supply and system brown-outs.

The PT7M6223CLTA3EX has a watchdog timer that combines a 12-bit programmable count register, reset event flag, programmable reset timeout and a reset active low pin. This combination allows for a wide range of finesse when it comes to implementing a system-level fail safe solution. The watchdog timer can also be used as an alarm or a time-out counter.

The PT7M6223CLTA3EX also features a 4.5V–1.8V power supply and a power-off feature with a minimum reset time of 10 ms. An auto-retry function allows the circuit to be tested multiple times if the reset time is shorter than 10 ms. The circuit also employs a frequency modulation technique to reduce power consumption and save power.

The PT7M6223CLTA3EX is most often used in portable electronics, such as mobile phones, digital still cameras and laptop PCs. Within these devices, the watchdog timer plays a critical role in safeguarding against power supply and system brownouts. The timer can quickly detect and warn of any power glitches, ensuring the device remains in a safe operating state during such periods. Additionally, the timer can be used to safeguard against malicious code.

The PT7M6223CLTA3EX\'s working principle is based on its ability to monitor the system\'s activity and detect any anomalies. If it finds that the system is not behaving correctly, it will send a warning signal to the main processor, causing it to reset. The reset time is user-configurable and can be tailored to the application\'s requirements, allowing the system to shut down when necessary. This prevents any long-term damage or loss of data due to power supply or system problems.

The PT7M6223CLTA3EX is ideal for applications that require a reliable watchdog timer that combines robust specifications and low power consumption. The device is easy to use, requires minimal external components, and can be quickly integrated into most power supply designs. This makes it a cost-effective solution for applications such as mobile phones, digital still cameras and laptop PCs where reliable system-level safety and protection is needed.

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