MAX819LCSA+T

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Supervisors are a type of device in the Power Management Integrated Circuit (PMIC) family that provide crucial functionality in a variety of application areas. The MAX819LCSA+T is a particular supervisor that stands out as highly useful and extremely versatile, finding applications in a broad range of industries. It not only provides critical over voltage protection, but can also serve as a Reset indicator, replace microprocessor logic, and provide very accurate cycle-by-cycle current limit protection. Furthermore, its miniature package solution makes it the ideal choice for any application that requires low power, high speed switching.

The MAX819LCSA+T is an ultra-low-voltage supervisor device, featuring down to 0.7V operation and controls a power supply reset output. It also provides an active-high reset indicator, a direct replacement for microprocessor logic devices such as the 74HC04 and a power-up delay reset timer. The MAX819LCSA+T can also detect and limit cycle-by-cycle overcurrent conditions while turning off the output if it withstands the current condition for a time period of 65sec. The MAX819LCSA+T also integrates overvoltage protection thresholds accessed by external resistors and is well suited for direct battery connection in automobile and industrial applications.

The MAX819LCSA+T operates with an ultra- low operating supply current of only 0.7µA in a temperature range of –40°C to +125°C. It also offers a reset output valid from 0.7V to (VCC + 0.3V) with improved reset accuracy. In addition, it switches its output from low to high state in 10µsecs and its output remains low for an accurate reset timer with typical low-voltage delay time of 460ms.

The MAX819LCSA+T is ideal for automotive and industrial applications that require a high-speed, low-power supervisor device. This particular supervisor is the perfect choice for applications such as microcontrollers, automotive onboard computers, engine control units, point-of-sale machines and various other industrial applications such as security systems and medical equipment.

The working principle behind the MAX819LCSA+T is simple and effective. This supervisor monitors incoming voltage and determines when a power supply reset is required. Once the power supply reset is initiated, the device immediately goes into standby mode by turning off the reset output. The reset output remains low until the system voltage rises above the reset threshold. Once the voltage is above the reset threshold, the reset output is returned back to high, indicating that the system is stable.

The MAX819LCSA+T supervisor device is cost effective, and is sure to enable cost-sensitive designs for automotive and industrial applications. Its speed and accuracy make it the ideal supervisor for a range of applications that require fast and stable performance. The MAX819LCSA+T comes with a wide range of features such as overvoltage protection, cycle-by-cycle current limit protection and low-voltage reset timing. It is tough and rugged and offers a very reliable solution for the highly demanding requirements within automotive and industrial applications.

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