AS8002-AB

AS8002-AB Datasheet


AS8002

Part Datasheet
AS8002-AB AS8002-AB AS8002-AB (pdf)
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AS8002

Solar Photovoltaic Inverter Measurement IC with Fast Over Current Detection r

AS8002-AB-1.0 Adapter Board OPERATION MANUAL
lid Power inverters in solar photovoltaic systems are often
connected directly to the electricity grid in order to inject the created energy into the mains and act as an
a electricity supplier. This energy must comply with certain
regulations that set the standard in terms of quality and
v safety which requires of accurate measurements. ill The AS8002 is a highly accurate measurement IC that
allows monitoring the generated energy with low cost shunt resistors or other sensors for the current and
t resistor dividers for the voltage. This approach allows G s avoiding more expensive sensing devices while
achieving the required accuracy for DC and AC

A t measurements of current and voltage as well as stability
over the operating temperature range of the inverter.
s n The 12 bit ADC samples the voltage and current and e provides their instantaneous values through an SPI m t interface.

The 12 Bit ADC is preceded by low noise programmable gain amplifiers in order to accommodate different sensors. The ADC has three multiplexed inputs, offering one secondary channel in addition to the main voltage and current.

The on-chip temperature sensor provides the inverter designer the option of temperature compensation for any of the measured parameters or functional blocks provided, over the full operating temperature range of the device.

The on-chip voltage reference is connected to the ADC and to REF. An external crystal oscillator is not required as a high accuracy internal oscillator clock is available.

The independent over current interrupt detects a high current on the grid and allows the processor to open the switches without waiting for the ADC conversion.
a on The AS8002 Adapter Board c The AS8002-AB-1.0 Adapter board allows you an easy-to-use evaluation of the essential functions of the AS8002.

It is a system with built-in microcontroller, USB interface and a simple analogue frontend. The complete system is fully
l supplied by the PC and needs no additional external power supply. Technica In combination with the AS8002-GUI PC software is it possible to evaluate all the basic functions.

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AS8002 Adapterboard OPERATIONAL MANUAL

Board overview

Programming interface for the USB-Microcontroller not used in the field

USB connector to the PC backside

AS8002
alid Analog frontend connectors

Connectors for Interrupt and reference voltages

AG t still v The inputs of the analog frontend are differential. If they are driven from a single ended source it is essential that the
source is floating compared to the ground potential of the USB interface which acts as the power supply for the board.
s en AS8002 GUI Software m t The software is developed for a Microsoft Windows XP operating system with Service Pack After installing the a n “Install.msi” package the AS8002_EvalSW application is ready for use.

The GUI works like an Oscilloscope and is able to display the input signals according the selection done in the Input

Technical co checkboxes. Furthermore the register map information can be displayed.

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AS8002 Adapterboard OPERATIONAL MANUAL
More datasheets: 55-00233 | 55-00215 | 55-00214 | 55-00229 | 55-00041 | 55-00213 | 55-00020 | 55-00216 | ATA664251-WGQW-1 | ATA664251-WGQW


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Datasheet ID: AS8002-AB 519770