ISL88813IB846Z

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

ISL88813IB846Z is a single-channel voltage supervisor, belongs to PMIC\'s Supervisorsfamily. It is a family of PMIC products that provide power rail management, power tracking, system reset or sequencing and optional active tracking features.

The ISL88813IB846Z provides power-on reset, power-good supply, and active tracking and voltage monitoring functions for point-of-load (POL) regulators and other devices that required tracking of remotely and locally generated supply rails.

The ISL88813IB846Z is designed to protect core power supplies on board power systems and provide active monitoring of the power supply. One application of this device is in modern day hnectronic appliances, where it can provide an alert when the power supply is low, preventing sudden shut downs. This device can also be used to protect systems against major power surges, acting like a circuit breaker that disconnects all other components in the system.

Working Principle:

The ISL88813IB846Z is based on a low power low offset comparator with active tracking of an adjustable reference voltage. When an external voltage is supplied, the comparison circuit trips, providing an auxiliary voltage. The voltage is then monitored and when it exceeds the selected overvoltage, an internal timer starts. When it is stable for a predetermined amount of time, a reset pulse is asserted and the main power supply is enabled. If the voltage is below the selected undervoltage threshold, the reset is asserted and the main power supply is disabled.

The device also features an active tracking feature which enables the device to track the voltage as it rises and falls. This feature is useful when the voltage levels across the board power elements vary during power up, power down and standby modes. The active reference tracking ensures that the device keeps the desired reset thresholds correctly programmed without manual intervention.

The ISL88813IB846Z provides a built-in watchdog timer with selectable time periods ranging from 128ms to 8sec. The reset is triggered when the delay is exceeded, preventing a system hang-up in the event of an unexpected delay in the power source reaching the designated threshold level.

Overall, The ISL88813IB846Z is an ideal cost-effective solution for single-channel open-drain supervisors and provides high accuracy, flexibility and noise immunity. This device is suitable for applications such as portable and embedded systems, automotive engine control functions, production line controllers and other applications requiring power rail management.

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