X4643V8I-2.7A

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The X4643V8I-2.7A is a PMIC - Supervisors product from Analog Devices. PMIC Supervisors, which can also be referred to as System Level Monitors and Voltage Monitors, prevent systems from entering into potentially hazardous situations. X4643V8I-2.7A is an advanced Supervisor product, with both power-on reset (POR) andBrown-outdetection capability. It is also a wide-input voltage range regulator, with power capability up to 1.2A, paired withhigh voltage supply operation up to 18 V or 40 V, depending on the device. This device is available in 3.0mmx 3.0mm QFN package. Due to its wide range of features and advantages, the X4643V8I-2.7A is widely used in consumer electronics, industrial, medical and automotive electronics.

The X4643V8I-2.7A is a low-power Supervisor designed for systems that require reliable power-on reset (POR) and brown-out detection. With a power consumption of just 25µA(typical) operating current and a very low quiescent supply current of 0.5µA(typical), it is perfectly suited for energy conscious designs. An integrated watchdog timer is available which can be used to reset a system if it ever enters an anomalous state.The supervisor has an input voltage range of 2.8 V to 10V, and an output voltage range from1.2Vto 5.5V. This makes it suitable for use in a wide variety of applications.

The X4643V8I-2.7A uses an advanced under-voltage detection circuit to identify when the power supply voltage falls below the programmed threshold. This is used to initiate a power-on reset when power is first applied to the system. An additional brown-out detection circuit will monitor the system\'s power supply voltage levels, issuing a reset when the voltage drops below the programmed threshold. The brown out detection circuit can be set up to trigger a reset when the voltage falls below any user-defined level, ensuring that the system is protected from the adverse effects of low voltage conditions.

The X4643V8I-2.7A also has power saving features, using an activelow pin to enable the device in both normal and low power modes. The activelow pin reduces the operating current to just 12µA – 9µA (typical), allowing the system to enter a low power standby mode when not in use. The supervisor also integrates an adjustable watchdog timer, allowing the system to detect and respond to any unexpected application issues. Additionally, the device is ESD-protected up to 8kV and supports LVCMOS and I2C interface.

The X4643V8I-2.7A is ideal for a wide array of applications where reliable POR and brown-out detection are required. It is used in consumer electronics such as TVs, video systems, and radio communications, as well as for industrial, medical and automotive applications. The device’s small form factor and low power consumption, combined with its wide range of features, makes it a great choice for any application where reliability and performance are paramount.

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