RT9819A-25GVL

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

PMIC - Supervisors, such as the RT9819A-25GVL, are integrated circuits or discrete components that monitor system status and signal power distribution to assure stable and reliable system operation. They are an essential part of modern electronic systems, and are used to protect delicate circuits from voltage overspikes and power anomalies, extend the life of system components and conserve energy.

The RT9819A-25GVL is a High Accuracy Single-Channel OVP/UVP/OTP Supervisor with System Reset and Reset Skip. It provides system reset and reset disable outputs that initiates a system power-on reset sequence and/or interrupts the reset sequence for rising brownout conditions. It monitors system voltage and provides an accurate, adjustable Over Voltage Protection (OVP)/Under Voltage Protection (UVP) and OverTemperature Protection (OTP). This device is ideal for applications such as PDAs, netbooks and mobile phones, providing system protection from voltage, temperature and other environmental conditions.

The RT9819A-25GVL contains specialized Comparators and a debounced Reset Switch to regulate system operation. The maximum operating voltage of the device is 5.5V and its thermal resistance is 1.2°C/W at 25°C junction temperature. It features three separate comparators with adjustable threshold levels, which detect overvoltage, undervoltage and overtemperature conditions. The reset switch enables a reset signal of up to 10msec (typical) when an overvoltage, undervoltage or overtemperature condition is detected. The reset signal is used to inform the system processor microcontroller to take corrective actions.

The RT9819A-25GVL has a wide range of features designed to maximize system stability. It provides built-in power-on reset (POR) logic to generate system reset and reset indication. The supervisor also monitors VCC for over- and undervoltage conditions with adjustable threshold levels. In addition, the OTP comparator has a user adjustable temperature limit that signals a reset once the temperature exceeds the user programmed value. The device is well suited for applications with wide range of temperatures and environment.

The RT9819A-25GVL is covered by the specially designed PMIC sleeves to protect it from environmental x-radiation, heat, dirt and moisture. The device features reverse current protection and ESD protection. It also features power up timeout. It reset upon a power ramp up to ensure a valid reset when power is turning on. It also has power down timeout that applies reset when power is turned off. The device is RoHS- and halide-free, making it an environmentally friendly choice.

In conclusion, the RT9819A-25GVL is an ideal supervisor device for power supplies and system applications. Combined with its wide featurs, it provides a high level of system protection and stability. Its adjustable input thresholds and power up and power down timeout functions make it well suited for a variety of applications in the industrial, automotive and consumer market.

The specific data is subject to PDF, and the above content is for reference