ISL88003IE26Z-T

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Push-Pull, Totem Pole
Reset:	Active High
Reset Timeout:	140 ms Minimum
Voltage - Threshold:	2.63V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	SC-70, SOT-323
Supplier Device Package:	SC-70-3
Base Part Number:	ISL88003

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PMIC - Supervisors: ISL88003IE26Z-T Application Field and Working Principle

Power Management Integrated Circuits (PMICs) are electrical components responsible for regulating, transferring and managing the flow of electric current to ensure device performance and power efficiency. PMICs are divided into multiple categories, such as supervisors, discrete MOSFETs, power converters, linear regulators, regulators and controllers. One type of PMIC is the supervisor, which is a device used to monitor the voltage and current of a system, detect faults and respond accordingly. The ISL88003IE26Z-T is an ultra-low power supervisor device with a 1.75V-5.5V supply voltage and 6µA static operating current. Developed by Intersil, this supervisor is designed to provide power supply monitoring, brownout detection, cycle-by-cycle current limiting, monitoring of multiple system power rail, and logic reset generation. The ISL88003IE26Z-T can be used for a variety of applications, including system monitoring, power management and supply power monitoring in embedded devices such as handhelds, wearables, servers, IoT, and automotive systems. As for the operating principle, the device monitors the power rails in a system with its voltage and current comparators. Its adjustable threshold rising and falling input pins are triggered when the voltage in the rails reach a certain level, and the device will then identify which event has occurred (brownout, under/overvoltage, reset/re-enable, and so on). The IC then responds accordingly upon the specified action. The ISL88003IE26Z-T comes with a number of desirable features, including adjustable power supply reset threshold (1.8V-3.9V), adjustable power supply operating threshold (1.8V-3.9V), power supply valid and power good flag, power supply reset and power good timer (125ms min), power fail delay timer (500µs min), power supply reset de-bounce timer (maximum 100ms), and 2 digital comparators that can be used as general-purpose comparators. Additionally, the device features a power-down mode that reduces the consumption to less than 0.3µA. In conclusion, the ISL88003IE26Z-T is a highly integrated, low-power device designed to monitor system power rails, detect faults and respond accordingly. With its adjustable thresholds, digital comparators and various features, the device is suitable for a variety of applications including system monitoring, power management and supply power monitoring in embedded devices.

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