RT9824CGJ8

PMIC – Supervisors are electronic components that provide high-level supervision of system power and reset functions. The RT9824CGJ8 is a 3.3V microprocessor supervisory circuit used to oversee slow power-on, power-down and power-out reset (POR) functions in many different types of applications. The RT9824CGJ8 includes two integrated voltage monitors to detect issues in power supply, over-voltage and under-voltage conditions, as well as integrated reset generators for POR, active-high power-on reset (POR) and active-low power-down reset (PDR).

In addition to the supervisors it supports, the RT9824CGJ8 offers several features that make it suitable for many different applications. It features a low quiescent current of only 300 nA, allowing it to operate in battery-backed systems while offering superior start-up time and ensuring reliable system startups. The RT9824CGJ8 includes integrated over-voltage, reverse-voltage, under-voltage and open-drain detection, offering superior margin against external disturbances like power line noise and voltage drops. The RT9824CGJ8 also offers long times to reset during power on/off (POR/PDR), and adjustable reset thresholds, allowing for optimal system set-up and monitoring.

The RT9824CGJ8 application field includes microcontrollers, logic and memory systems, consumer and automotive electronics, industrial controllers, and various other applications. It is also suitable for embedded systems that require low quiescent current, over-voltage/reverse-voltage/under-voltage monitoring and integrated reset components. The RT9824CGJ8’s superior features make it an ideal choice for such applications.

The RT9824CGJ8’s working principle is simple and easy to understand. The device monitors input voltage, and if the voltage is above or below certain thresholds, the RT9824CGJ8 will generate reset signals. It features two voltage monitors: one configured for 1.62V and the other for 3.0V (both with high/low thresholds). The RT9824CGJ8 also includes two reset generators – a power-on reset (POR) and power-down reset (PDR) – which are used to reset the system after a voltage issue is detected. The RT9824CGJ8 also offers a hysteresis circuit, which allows the device to set a delay after the beginning of the reset pulse, thus eliminating false reset signals caused by in-rush current and momentary power dips.

The RT9824CGJ8 is a versatile, cost-effective device capable of monitoring a wide range of input voltages and generating reset signals in response. Its features make it suitable for a variety of applications, including microcontrollers, logic and memory systems, consumer and automotive electronics, industrial controllers, and various other applications.