ISL6322IRZ

Series:	--
Packaging:	Tube
Part Status:	Active
Applications:	Controller, Intel VR10, VR11, AMD CPU
Voltage - Input:	5 V ~ 12 V
Number of Outputs:	1
Voltage - Output:	0.38 V ~ 1.99 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	48-VFQFN Exposed Pad
Supplier Device Package:	48-QFN (7x7)
Base Part Number:	ISL6322

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ISL6322IRZ Application Field and Working Principle

IntroductionThe ISL6322IRZ is a 8-bit adjustable current mode anti-islanding control circuit designed to protect utility-supplied distributed power system from islanding in a distributed generation (DG) application. This device is designed specifically for the single-phase Utility/Energy Storage System (ESS) protection as used in distributed generation applications such as small and medium scale inverter applications.Application FieldThe primary application field for this device is for use in Utility/Energy Storage System (ESS) protection for distributed generation applications. These applications include residential and commercial distributed generators such as Solar PV and Fuel Cell Powered Generator, Wind Turbines and the like.FeaturesThe ISL6322IRZ offers the following features:• Low input current in order to reduce the power consumption.• Low start up voltage that makes it suitable for operating over wide range of input voltages.• High operating frequency that allows for fast response times.• Wide dynamic output range that allows for adjustable current control.• Low output voltage equivalent to bare die level.• Low current share mode that shares input current across parallel strings in a distributed generator.• Optimized power management that provides highest efficiency and minimum output ripple.Working PrincipleThe ISL6322IRZ works on an adjustable current mode operation. The device has an internal switching regulator and a current sense resistor connected in series between the input and output. The current sense resistor is used to sense the output current and its voltage is used to regulate the output voltage. The voltage on the sense resistor is monitored and regulated by an internal loop that sets the operating point on the output waveform.The internal loop sets the operating point automatically and does not require external calibration or adjustment. The output voltage adjusts itself to maintain the output current as per the set parameters.In addition to the adjustable current mode, the device also features a low power mode. In this mode, the input current is reduced and the output voltage drops substantially. This mode is suitable for situations where the device is expected to remain at low power for long time frames.ConclusionThe ISL6322IRZ is a 8-bit adjustable current mode anti-islanding control circuit designed for utility-supplied distributed power system from islanding in distributed generation applications like small and medium scale inverters. This device offers several great features such as low input current, low start-up voltage, wide dynamic output range, low current share mode, and optimized power management. While operating, the device works on an adjustable current mode with an internal loop that sets the operating point on the output waveform. The device also offers a low power mode that reduces the input current and the output voltage.

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