AS8002-AQFP

AS8002-AQFP Datasheet

AS8002

Part	Datasheet
AS8002-AQFP	AS8002-AQFP (pdf)

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austriamicrosystems AG is now ams AG The technical content of this austriamicrosystems datasheet is still valid. Contact information Headquarters ams AG Tobelbaderstrasse 30 8141 Unterpremstaetten, Austria Tel +43 0 3136 500 0 e-Mail: Please visit our website at Data Sheet AS8002 Solar Photovoltaic Inverter Measurement IC with Fast Over Current Detection 1 General Description 2 Key Features 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 electricity supplier. This energy must comply lid with certain regulations that set the standard in terms of quality and safety which requires of accurate measurements. The AS8002 is a highly accurate measurement IC that allows monitoring the generated energy with low cost shunt resistors or a other sensors for the current and resistor dividers for the voltage. v This approach allows avoiding more expensive sensing devices while achieving the required accuracy for DC and AC measurements ill of current and voltage, as well as stability over the operating temperature range of the inverter. The 12-bit ADC samples the voltage and current and provides their t instantaneous values through an SPI interface. G The 12-bit ADC is preceded by low noise programmable gain s amplifiers in order to accommodate different sensors. A t The ADC has three multiplexed inputs, offering one secondary channel in addition to the main voltage and current. s n The on-chip temperature sensor provides the inverter designer the option of temperature compensation for any of the measured 3 Appliecations parameters or functional blocks provided, over the full operating m t temperature range of the device. The on-chip voltage reference is connected to the ADC and to REF. a n An external crystal oscillator is not required as a high accuracy internal oscillator clock is available. o The independent over current interrupt detects a high current on the c grid and allows the processor to open the switches without waiting Technical for the ADC conversion. 12-Bit 100 kSPS ADCs for accurate voltage and current measurement Programmable gain amplifiers to accommodate for different sensors Three multiplexed inputs to the 12-Bit ADC for secondary measurements that require high accuracy and fast sampling rates On chip temperature sensor connected to one of the inputs of the multiplexer On-chip voltage reference with small temperature coefficient 10ppm/K typ . This reference is available at the pin REF. Low power on chip oscillator SPI compatible interface Internal registers for easy offset and gain compensation Interrupt alerts including Under Voltage Lock-Out and Over Temperature Independent programmable over current interrupt The AS8002 is suitable for PV inverter grid monitoring, Wind inverter grid monitoring, Isolated voltage sensing, Uninterruptible Power supplies and Power conditioners. 1 - 24 AS8002 Data Sheet - Applications Figure AS8002 Block Diagram alid IOP_VOP v IOM_VOM till V1P G s V1M A t V2P Technicaaml sconten V2M Volt Curr TEMP OVER CURR AVDD DVDD AS8002 e Application 21 m t 9 Package Drawings and Markings 22 Technicaal con 10 Ordering 24 3 - 24 AS8002 Data Sheet - Pin Assignments 4 Pin Assignments Figure Pin Assignments Top View AVDD DVDD SCSB SCL lid IOP_VOP IOM_VOM AS8002 a QFN16 v V1P 4x4x0.9 XINT ill V1M DVSS V2P V2M REF AVSS s AG nt st Pin Descriptions Table Pin Descriptions m te PinName Pin Number IOP_VOP a n IOM_VOM o V1P c V2P l V2M a REF AVSS ic DVSS XINT n SDO h SDI cSCLK eSCSB TDVDD Pin Type Analog pin Analog Input Channel Positive input of the differential analog input. Analog pin Analog Input Channel Negative input of the differential analog input. Analog pin Analog Input Channel Positive input of the differential analog input. Analog pin Analog Input Channel Negative input of the differential analog input. Analog pin Analog Input Channel Positive input of the differential analog input. Data Sheet - Ordering Information 10 Ordering Information The devices are available as the standard products shown in Table Table Ordering Information Ordering Code Delivery Form Package AS8002 AQFP Temperature -40ºC to 125ºC Tape & Reel in Dry Pack 6000 pieces / reel 16-pin QFN 4x4x0.9mm Note All products are RoHS compliant and Pb-free. lid Buy our products or get free samples online at ICdirect: For further information and requests, please contact us or find your local distributor at va Copyrights ill Copyright 1997-2010, austriamicrosystems AG, Tobelbaderstrasse 30, 8141 Unterpremstaetten, Austria-Europe. Trademarks Registered All rights reserved. The material herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. t All products and companies mentioned are trademarks or registered trademarks of their respective companies. G s Disclaimer A t Devices sold by austriamicrosystems AG are covered by the warranty and patent indemnification provisions appearing in its Term of Sale. austriamicrosystems AG makes no warranty, express, statutory, implied, or by description regarding the information set forth herein or regarding s n the freedom of the described devices from patent infringement. austriamicrosystems AG reserves the right to change specifications and prices at any time and without notice. Therefore, prior to designing this product into a system, it is necessary to check with austriamicrosystems AG for e current information. This product is intended for use in normal commercial applications. Applications requiring extended temperature range, m t unusual environmental requirements, or high reliability applications, such as military, medical life-support or life-sustaining equipment are specifically not recommended without additional processing by austriamicrosystems AG for each application. For shipments of less than 100 a n parts the manufacturing flow might show deviations from the standard production flow, such as test flow or test location. The information furnished here by austriamicrosystems AG is believed to be correct and accurate. However, austriamicrosystems AG shall not o be liable to recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use, interruption of business or indirect, special, incidental or consequential damages, of any kind, in connection with or arising out of the furnishing, c performance or use of the technical data herein. No obligation or liability to recipient or any third party shall arise or flow out of austriamicrosystems AG rendering of technical or other services. nical Contact Information h Headquarters c austriamicrosystems AG Tobelbaderstrasse 30 e A-8141 Unterpremstaetten, Austria Tel +43 0 3136 500 0 TFax +43 0 3136 525 01 For Sales Offices, Distributors and Representatives, please visit: 24 - 24

PDF Datasheet Preview

austriamicrosystems AG is now
ams AG

The technical content of this austriamicrosystems datasheet is still valid.

Contact information Headquarters ams AG Tobelbaderstrasse 30 8141 Unterpremstaetten, Austria Tel +43 0 3136 500 0 e-Mail:

Please visit our website at

Data Sheet

AS8002

Solar Photovoltaic Inverter Measurement IC with Fast Over Current Detection
1 General Description
2 Key Features

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 electricity supplier. This energy must comply
lid with certain regulations that set the standard in terms of quality and
safety which requires of accurate measurements.

The AS8002 is a highly accurate measurement IC that allows monitoring the generated energy with low cost shunt resistors or
a other sensors for the current and resistor dividers for the voltage. v This approach allows avoiding more expensive sensing devices
while achieving the required accuracy for DC and AC measurements
ill of current and voltage, as well as stability over the operating
temperature range of the inverter.

The 12-bit ADC samples the voltage and current and provides their
t instantaneous values through an SPI interface. G The 12-bit ADC is preceded by low noise programmable gain s amplifiers in order to accommodate different sensors. A t The ADC has three multiplexed inputs, offering one secondary
channel in addition to the main voltage and current.
s n The on-chip temperature sensor provides the inverter designer the
option of temperature compensation for any of the measured
3 Appliecations parameters or functional blocks provided, over the full operating m t temperature range of the device.

The on-chip voltage reference is connected to the ADC and to REF.
a n An external crystal oscillator is not required as a high accuracy
internal oscillator clock is available.
o The independent over current interrupt detects a high current on the c grid and allows the processor to open the switches without waiting Technical for the ADC conversion.
12-Bit 100 kSPS ADCs for accurate voltage and current measurement Programmable gain amplifiers to accommodate for different sensors Three multiplexed inputs to the 12-Bit ADC for secondary measurements that require high accuracy and fast sampling rates On chip temperature sensor connected to one of the inputs of the multiplexer On-chip voltage reference with small temperature coefficient 10ppm/K typ . This reference is available at the pin REF. Low power on chip oscillator SPI compatible interface Internal registers for easy offset and gain compensation Interrupt alerts including Under Voltage Lock-Out and Over Temperature Independent programmable over current interrupt

The AS8002 is suitable for PV inverter grid monitoring, Wind inverter grid monitoring, Isolated voltage sensing, Uninterruptible Power supplies and Power conditioners.
1 - 24

AS8002

Data Sheet - Applications

Figure AS8002 Block Diagram
alid IOP_VOP v IOM_VOM till V1P G s V1M A t V2P Technicaaml sconten V2M

Volt

Curr

TEMP

OVER CURR

AVDD DVDD

AS8002
e Application 21 m t 9 Package Drawings and Markings 22 Technicaal con 10 Ordering 24
3 - 24

AS8002

Data Sheet - Pin Assignments
4 Pin Assignments

Figure Pin Assignments Top View

AVDD DVDD SCSB SCL
lid IOP_VOP

IOM_VOM

AS8002
a QFN16
v V1P
4x4x0.9

XINT
ill V1M

DVSS

V2P V2M REF AVSS
s AG nt st Pin Descriptions

Table Pin Descriptions
m te PinName

Pin Number

IOP_VOP
a n IOM_VOM
o V1P
c V2P
l V2M
a REF

AVSS
ic DVSS

XINT
n SDO
h SDI
cSCLK
eSCSB

TDVDD

Pin Type

Analog pin Analog Input Channel Positive input of the differential analog input.

Analog pin Analog Input Channel Negative input of the differential analog input.

Analog pin Analog Input Channel Positive input of the differential analog input.

Analog pin Analog Input Channel Negative input of the differential analog input.

Analog pin Analog Input Channel Positive input of the differential analog input.
Data Sheet - Ordering Information
10 Ordering Information

The devices are available as the standard products shown in Table
Table Ordering Information
Ordering Code

Delivery Form

Package

AS8002 AQFP

Temperature -40ºC to 125ºC

Tape & Reel in Dry Pack 6000 pieces / reel
16-pin QFN 4x4x0.9mm

Note All products are RoHS compliant and Pb-free.
lid Buy our products or get free samples online at ICdirect:

For further information and requests, please contact us or find your local distributor at
va Copyrights ill Copyright 1997-2010, austriamicrosystems AG, Tobelbaderstrasse 30, 8141 Unterpremstaetten, Austria-Europe. Trademarks Registered

All rights reserved. The material herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner.
t All products and companies mentioned are trademarks or registered trademarks of their respective companies.

G s Disclaimer A t Devices sold by austriamicrosystems AG are covered by the warranty and patent indemnification provisions appearing in its Term of Sale.
austriamicrosystems AG makes no warranty, express, statutory, implied, or by description regarding the information set forth herein or regarding
s n the freedom of the described devices from patent infringement. austriamicrosystems AG reserves the right to change specifications and prices at
any time and without notice. Therefore, prior to designing this product into a system, it is necessary to check with austriamicrosystems AG for
e current information. This product is intended for use in normal commercial applications. Applications requiring extended temperature range, m t unusual environmental requirements, or high reliability applications, such as military, medical life-support or life-sustaining equipment are
specifically not recommended without additional processing by austriamicrosystems AG for each application. For shipments of less than 100
a n parts the manufacturing flow might show deviations from the standard production flow, such as test flow or test location.

The information furnished here by austriamicrosystems AG is believed to be correct and accurate. However, austriamicrosystems AG shall not
o be liable to recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use,
interruption of business or indirect, special, incidental or consequential damages, of any kind, in connection with or arising out of the furnishing,
c performance or use of the technical data herein. No obligation or liability to recipient or any third party shall arise or flow out of
austriamicrosystems AG rendering of technical or other services.
nical Contact Information h Headquarters c austriamicrosystems AG

Tobelbaderstrasse 30
e A-8141 Unterpremstaetten, Austria

Tel +43 0 3136 500 0

TFax +43 0 3136 525 01

For Sales Offices, Distributors and Representatives, please visit:
24 - 24

More datasheets: 40-516-10 | 24-516-10 | 28-516-10 | 28-516-11S | 24-516-11 | 24-516-11S | 24-516-11M | 40-516-11 | 3522 | 26504-SBK

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Datasheet ID: AS8002-AQFP 519768