DS1233AZ-15+

PMIC Supervisors are devices integrating a set of functions for controlling system power-supply sequencing and supervising power rails. The DS1233AZ-15+ is a PMIC Supervisor device that provides supervisor functions in the protection of system power supplies.This PMIC Supervisor integrates multiple hardware failsafe circuits to properly sequence and monitor power rails in portable and other medium-power systems. The DS1233AZ-15+ delivers comprehensive power-management supervision to systems powered in the range of 1.8V ~ 20V with an adjustable reset threshold, reset timeout, and battery monitoring functions.The primary function of this PMIC Supervisor is to ensure that all system power rails, including the main system voltage, are enabled and disabled in the correct order and that they are kept within the pre-defined margins. This device also provides load disconnection and system reset functions to protect the system from over-voltage or over-current conditions by monitoring the voltage and the current consumption of the system or the user-defined attributes. Additional features such as battery monitoring and ADC inputs are also integrated into this device.This PMIC Supervisor can be used in a wide range of applications such as portable gaming systems, embedded systems, and other power-sensitive system designs.The DS1233AZ-15+ integrates a set of programmable registers that can be used to configure and monitor the state of the system and its associated peripherals. The main programmable registers of this device include the system status register (SSR), the system reset timer register (SRTR), the high/low voltage reset timer register (HVLRTR), the reset control register (RCR), the reset tolerance register (RTR), and the system reset timer monitor register (SRTMR).The SSR allows the setting of the system status by monitoring the status of the power rails and other system peripherals. The SRTR monitors the reset timeout period before a system reset is triggered in case of an over-voltage/over-current condition.The HVLRTR allows setting of the upper and lower voltage thresholds. The reset tolerance register (RTR) is used to adjust the reset threshold voltage and current levels for protection. The system reset timer monitor register (SRTMR) monitors the reset timeout period.The RCR register can be programmed to read a fault bit from the system or an external logic signal and initiate a system reset if a fault is detected. The ADC registers monitor the voltage and other attributes from an external ADC and trigger system reset if the voltage or corresponding attributes are outside of the selected preset values. The battery monitor and Smart Battery registers allow monitoring of the battery voltage and capacity over extended periods of time.In conclusion, the DS1233AZ-15+ is a PMIC Supervisor device designed to control and monitor system power-supply sequencing and supervising power rails. This device provides a comprehensive power-management system with adjustable reset threshold, reset timeout, and battery monitoring functions. It also provides load disconnection and system reset functions as well as monitoring of external inputs such as voltage and other range-related attributes. This device can be used in a wide range of applications and its programmable registers can be used to configure and monitor the state of the system.