AS3691_1 AMSCO | Alldatasheet
Document overview
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Technical content
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1 General Description
The AS3691 (AS3691A and AS3691B) features four high precision current sources for lighting of up to four LED strings (RGB or single color leds). Each of the four currents sources can be controlled independently by PWM inputs. The full scale current value is set by external resistors.
2 Key Features
4 x up to 0.4A constant current outputs Programmable with external resistors 4 independent PWM inputs Absolute current accuracy +/-0.5% ’Automatic Supply Regulation’ to reduce power dissipation1) 1) Patent Pending Very wide output voltage current source voltage compliance − Down to 0.41V − Up to 15V 2) Integrated overtem perature protection Separate sense pads (Rfb1-Rfb4) for easy and precise PCB Layout Package − DIE − QFN24 4x4mm − eP-TSSOP 2) 15V is sufficient for most applications as the AS3691 dose not switch off the LED current completely
3 Applications
General Lighting Backlighting RGB Backlighting for LCD TV/Monitors with White Color Balancing
4 Application Diagrams
Figure 1 – Application Diagram of AS3691 for Single Color Lighting VSS VSS VDD VDD Ri1 Ri2 Ri3 Ri4 Rvdd Cvdd 100nF UV UV PWM PWM Ref Overtemp AS3691 T1 T2 T3 T4 R1 R2 R3 R4 VREG VSS ON1 ON2 ON3 ON4 CURR1 CURR2 CURR3 CURR4 RES1 RES2 RES3 RES4 UV1 Vc UV2 UV3 UV4 I2 I3 I4 Vc Vc Vc RFB1 RFB2 RFB3 RFB4 Csup 100nF Pad Datasheet AS3691
4 Precision 400mA Current Sources for RGB and Single Color Leds
www.austriamicrosystems.com (ptr) Revision 2.3 2 - 22 Figure 2 – Application Diagram of AS3691 for RGB Lighting VSS VSS VDDR VDDR Ri1 Ri2 Ri3 Ri4 Rvdd UVR UVR UVB UVB UVG UVG PWMR PWMR PWMB PWMB PWMG PWMG VDDB VDDB VDDG VDDG Ref Overtemp AS3691 T1 T2 T3 T4 R1 R2 R3 R4 VREG VSS ON1 ON2 ON3 ON4 CURR1 CURR2 CURR3 CURR4 RES1 RES2 RES3 RES4 UV1 Vc UV2 UV3 UV4 I2 I3 I4 Vc Vc Vc RFB1 RFB2 RFB3 RFB4 Cvdd 100nF Pad
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Revision History
Revision Date Owner Description 2.3 30.10.2007 ptr - Added Trays as delivery option (order code AS3691A- ZQFT)
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5 Pinout
5.1 Pin Assignments
Figure 3 – Pin Usage Ref Overtemp AS3691 T1 T2 T3 T4 R1 R2 R3 R4 VREG V S S O N 1O N 2O N 3O N 4 CURR1 CURR2 CURR3 CURR4 RES1 RES2 RES3 RES4 UV1 Vc UV2 UV3 UV4 I2 I3 I4 Vc Vc Vc RFB1 RFB2 RFB3 RFB4Pad
5.2 Pin Descriptions
Table 1 – Pin Type Descriptions Pin Type Description AI/O Analog Pin AI Analog Input Pin AO Analog Output Pin DI Digital Input S Supply Pin Table 2 – Pin Descriptions Pin Number QFN Package Pin Number ePTSSOP Package Pin Name Type Description 1 10 CURR1 AI/O Current Source 1 Output 2 11 RFB1 AI Connect to current set resistor R1 directly at resistor itself 3 12 nc nc Leave open 4 13 RFB4 AI Connect to current set resistor R4 directly at resistor itself 5 14 CURR4 AI/O Current Source 4 Output 6 15 RES4 AI/O Connect to current set resistor R4
www.austriamicrosystems.com (ptr) Revision 2.3 5 - 22 Pin Number QFN Package Pin Number ePTSSOP Package Pin Name Type Description 7 16 ON4 DI Current source CURR4 control; internal pullup resistor to VREG (can be left open, if CURR4 is always switched on) High … 100% Current Low … 5% Current 8 17 UV4 AO Automatic supply regulation for CURR4; if not used, leave open 9 18 TEST AI Digital Test input; Leave open or connect to VSS; internal pulldown to VSS 10 19 UV3 AO Automatic supply regulation for CURR3; if not used, leave open 11 20 ON3 DI Current source CURR3 control; internal pullup resistor to VREG (can be left open, if CURR3 is always switched on) High … 100% Current Low … 5% Current 12 21 RES3 AI/O Connect to current set resistor R3 13 22 CURR3 AI/O Current Source 3 Output 14 23 RFB3 AI Connect to current set resistor R3 directly at resistor itself 15 24 VREG S Shunt regulator supply; connect to Rvdd and Cvdd 16 1 RFB2 AI Connect to current set resistor R2 directly at resistor itself 17 2 CURR2 AI/O Current Source 2 Output 18 3 RES2 AI/O Connect to current set resistor R2 19 4 ON2 DI Current source CURR2 control; internal pullup resistor to VREG (can be left open, if CURR2 is always switched on) High … 100% Current Low … 5% Current 20 5 UV2 AO Automatic supply regulation for CURR2; if not used, leave open 21 6 VSS S VSS Supply connection 22 7 UV1 AO Automatic supply regulation for CURR1; if not used, leave open 23 8 ON1 DI Current source CURR1 control; internal pullup resistor to VREG (can be left open, if CURR1 is always switched on) High … 100% Current Low … 5% Current 24 9 RES1 AI/O Connect to current set resistor R1 Pad Pad VSS S VSS Supply connection; add as many vias to ground plane as possible
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6 Characteristics
6.1 Absolute Maximum Ratings
Stresses beyond those listed in Table 1 may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in Section 5 Electrical Characteristics is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Table 3 – Absolute Maximum Ratings Symbol Parameter Min Max Unit Note VDDMAX Supply for LEDs -0.3 >17 V See notes 1 VINVREG VREG Supply voltage -0.3 7.0 V Applicable for pin VREG VIN5V 5V Pins -0.3 VREG+ 0.3V V Applicable for 5V pins 2 VIN15V 15V Pins -0.3 17 V Applicable for CURR1, CURR2, CURR3 and CURR4 IIN Input Pin Current -25 +25 mA At 25ºC, Norm: Jedec 17 TSTRG Storage Temperature Range -55 125 °C Humidity 5 85 % Non condensing VESD Electrostatic Discharge -2000 2000 V Norm: MIL 883 E Method 3015 PT Total Power Dissipation 2.0 W At 50ºC, no airflow for QFN24 on two layer FR4-Cu PCB3 PDERATE PT Derating Factor 23 mW/ °C See notes3 TBODY Body Temperature during Soldering 260 °C according to IPC/JEDEC J-STD- 020C Notes: 1. As the AS3691 is not directly connect ed to this supply. Only the parameters VINVREG, VIN5V and VIN15V have to be guaranteed by the application 2. All pins except CURR1, CURR2, CURR3 and CURR4 3. Depending on actual PCB layout and especially nu mber of vias below the exposed pad – see layout recommendations; can be improved e.g. with Al-PCB or airflow
6.2 Operating Conditions
Table 4 – Operating Conditions Symbol Parameter Min Typ Max Unit Note VDD Main Supply Not Limited V Supply is not directly connected to the AS3691 – see section ‘Shunt Regulator’ VDDTOL Main Supply Voltage Tolerance -20 +20 % Applies only for supply VREG is connected via Rvdd VREGINT Supply (shunt regulated by AS3691) 5.0 5.2 5.4 V If internally (shunt-)regulated by VREGEXT 4.5 4.75 5.0 V If externally supplied IVREG Supply Current 2.5 mA Excluding current through shunt regulator (D1) – see section ‘Shunt Regulator’ TAMB Ambient Temperature -20 25 85 °C
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6.3 Electrical Characteristics
Table 5 – Analog Electrical Characteristics Symbol Parameter Min Typ Max Unit Note 0.9 15.0 V at 400mA; total power dissipation limit PT must not be exceeded VCURR Current Source CURR1 to CURR4 Voltage Compliance 0.41 15.0 V at 100mA ICURR Current Source Range 10 400(1) mA ONx = high ICURRx = 250mV / Rix (x=1...4) -0.5 +0.5 % @25C TJUNCTION, excluding variation of external resistors; V(CURRx) <= 4.0V ICURR, TOL Current Source Tolerance -1.5 +1.5 % -20°C to +100°C(2) TJUNCTION, -20°C to +85°C TAMB, excluding variation of external resistors; V(CURRx) <= 4.0V VC Automatic Supply Regulation compare voltage 1.0 V See section ‘Automatic Supply Regulation’ VC,GAIN Automatic Supply Regulation gain 2.0 mA/V Voltage to current ratio; output current range typ 0 to 200uA 1.0 mA V(CURRx) <= 15V I1-4 Parallel Current 0.1 mA V(CURRx) <= 5.0V TOVTEMP Overtemperature Limit 140 °C Maximum junction temperature Notes: 1. To obtain higher currents connect more than one current source in parallel 2. Accuracy at +100°C guaranteed by design and verified by laboratory characterization Table 6 – Digital Input pins characteristics for pins ON1, ON2, ON3 and ON4 Symbol Parameter Min Typ Max Unit Note VIH High Level Input voltage 2.3 VREG V VIL Low Level Input voltage 0.0 0.9 V RPU Pullup resistor 70 kΩ Internal pullup resistor R1 to R4 to VREG fON Input Frequency Range 0 20 kHz This defines the actual input frequency seen on the input ON1 to ON4; the basic frequency to generate the PWM signal is not limited by this parameter
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7 Typical Operation Characteristics
Figure 4 – Output Current versus Voltage on Current Source – High Current Range 0,05 0,1 0,15 0,2 0,25 0,3 0,35 0,4 0,45 05 1 0 1 5 VCURR1 [V] I(CURR1) [A] Figure 5 – Output Current versus Voltage on Current Source – Low Current Range 02468 1 0 1 2 1 4 VCURR1 [V] I(CURR1) [mA] Figure 6 – Internal voltage reference versus Temperature, V(CURR1) = 2.0V, Ri1=250Ω 247 248 249 250 251 252 253 0 20 40 60 80 100 120 140 Temperature [C] V(RES1) [mV] )1( Ri RESVICURR =
www.austriamicrosystems.com (ptr) Revision 2.3 11 - 22 Figure 11 – Automatic Supply Regulation dynamic performance using DCDC converter in regulation loop (as in section 7.3) R1 = 47kΩ, R2 = 10kΩ, R3 = 5kΩ, R4 = 500Ω, C1 = 1uF, I(CURR1) = 400mA/20mA (Ri1=0.625Ω)
3 OSRAM Golden Dragon in series as load between CURR1 and VDD
Input signal on pin ON1: PWM signal with f=10kHz, 80% duty cycle Figure 12 – Parallel Current I1 to I4 (for measurement of I1 remove current set resistor R1) 0,1 0,2 0,3 0,4 0,5 0,6 0,7 0 5 10 15 VCURR1 [V] I(CURR1) [mA]
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8 Detailed Functional Description
The AS3691 includes four high precision current sources (sinks). Each current source is set by an external resistor. For internal power supply an internal shunt regulator is used. Optionally an additional 5V device can be supplied as well with this shunt regulator. The current sources are individually controlled by four ON inputs. If the inputs ON are high or left open, then the current is set as follows: Setting the input ON to low the current is The current is not zero to avoid high voltage jumps on the LEDs and supplies and therefore reduce EMI.
8.1 Shunt Regulator
The supply of the AS3691 is generated from the high voltage supply. To obtain a 5V regulated supply, a series resistor Rvdd is used together with an internal zener diode (shunt regulator principle). An external capacitor Cvdd is used to filter the supply on the pin VREG. The external resistor Rvdd has to be choosen according to the following formula: This ensures enough supply current (IVREGMAX) for the AS3691 under minimum supply voltage VDDMIN. If a stable 5V supply within the operating conditions limits of VREGEXT is already existing in the system it is possible to supply the AS3691 directly. In this case remove the resistor Rvdd and connected this supply directly to VREG.
8.2 Overtemperature Protection
If the junction temperature inside the AS3691 rises above TOVTEMP, the current sources are switched off. 250 − = Ri mVICURR 0.10 − = Ri mVICURR MAX MAXMIN IVREG VVREGINTVDDRvdd −= VDDMIN is the minimum voltage of the supply, where Rvdd is connected 4141 0.0 − =+= IIRi mVICURR for part numbers starting with AS3691A for part numbers starting with AS3691B; I1-4 is the parallel current (see above Figure 11)
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8.3 Automatic Supply Regulation
The purpose of the automatic supply regulation is to minimize the voltage supply to reduce the voltage across the current sources of the AS3691 (CURR1-CURR4 to VSS) and therefore reduce the power dissipation of the AS3691 and the complete system. The AS3691 automatically controls the minimum required supply voltage for the different led strings to support very power efficient systems for lighting using the following circuit (any off-the- shelf dcdc converter or ldo with adjustable output voltage can be used): Figure 13 – Automatic Supply Regulation Circuit The function of this circuit is as follows: All channels, which are connected to the supply VDDx should have their respective UV pin connected together to UVx (see above Figure and Section ‘Application Schematic’). If any of these current sources has a too low voltage, it gradually pulls the wire UVx low. (The analog gain between the current source CURRx and output UVx is defined by the parameter VC,GAIN.) Therefore the feedback pin Vfb of the dcdc converter is pulled low and the dcdc converter compensates this by increasing the voltage on VDDx to obtain the same feedback voltage as before. To stabilize this regulation loop, the low pass filter build by C1 and R4 is used (this should be the dominant pole for the regulation loop). The minimum output voltage VDDxmin can be set accurately by the resistors R1 and R2. The maximum output voltage VDDxmax is set by R1, R2, R3 and R4 (Vref is the internal voltage reference of the DCDC converter; usually Vref = Vfb): Therefore even if a led string is broken (then UVx is forced to 0V) or some leds are shorted, the supply always stays within the limits VDDxMIN and VDDxMAX. R RRVrefVDDxMIN 432 4321 RRR RRRRVrefVDDxMAX ++= UVx VDDx Voltage Feedback input for DCDC DCDC Converter for VDDFrom main supply Feedback resistor divider (part of DCDC converter circuit) R3 R4 CURR1 CURR2UV1 Vc UV2 Vc AS3691 Vfb Csup 100nF
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9 Application Information
Typical Application Schematic For RGB leds (and a white color balancing circuit) use the following application schematic including automatic supply regulation (feedback paths UVR, UVG, UVB): Figure 14 – Typical AS3691 System for RGB (back-)lighting; several AS3691 can be cascaded VSS VDDR UVR UVB UVG PWMR PWMB PWMG VDDB VDDG Overtemp AS3691 Vc Vc Vc Vc Overtemp AS3691 Vc Vc Vc Vc UVR VDDR Voltage Feedback input for DCDC DCDC Converter for VDDRMain supply Feedback resistor divider (part of DCDC converter circuit) ... UVG VDDG Voltage Feedback input for DCDC DCDC Converter for VDDG Feedback resistor divider (part of DCDC converter circuit) UVB VDDB Voltage Feedback input for DCDC DCDC Converter for VDDB Feedback resistor divider (part of DCDC converter circuit) 5V powered system (optional) PWMR PWMB PWMG ... ... 5V Supply Overtemp AS3691 D1 ...
www.austriamicrosystems.com (ptr) Revision 2.3 15 - 22 A typical AS3691 for single color leds can be done as follows using automatic supply regulation (feedback path UV): Figure 15 – Typical AS3691 system for single color leds and supply regulation loop; serveral AS3691 can be cascaded Note: Csup (100nF) is only required, if there are long wires (>0.3m) between the DCDC converter and the AS3691. The wire length between the Csup capacitor and the CURRx pin on AS3691 should not exceed 0.3m. If this cannot be guaranteed, add additional capacitors of 100nF to the pins CURRx.
9.1 Design Example
Assume a single color leds application (4 times 3 leds in series, each 100mA with Uf ranging from Ufmin=3.2V to Ufmax = 3.8V) with a fixed supply. First choose the external current set resistor with the following formula: So for a current of 100mA, use a resistor of 2.5Ω; 1/8W rated resistors are suitable (even up to 400mA). Then calculate the required voltage of the power supply. The minimum voltage on the current sink for guaranteed operation is 0.41V (VCURR @100mA) and the maximum forward voltage of the LEDs is assumed to As this is the required minimum voltage of the power supply, add all the tolerances on top. Assumed +/-10% supply tolerance results in a power supply with nominal 13V (to have at least 11.81V in worst case). Using the following formula to calculate the external shunt resistor obtains 2564Ω. The nearest lower(!) available value is 2.4kΩ. For Cvdd use Csup (100nF) is only required, if there are long connections between the DCDC converter and the AS3691 (>0.3m). The wire length between the Csup capacitor and the CURRx pin on AS3691 should not exceed 0.3m. If this cannot be guaranteed, add additional capacitors of 100nF to the pins CURRx. 250 − = ICURR mVRi mA VVDD IVREG VREGINTVDDRvdd MIN MAX MAXMIN 5.2 4.5−=−= nFCvdd 100= VDDMIN is the minimum voltage of the power supply, where Rvdd is connected UV VDD Voltage Feedback input for DCDC DCDC Converter for VDD Overtemp AS3691 Vc Vc Vc Vc ... supply PWM VSS PWM (optional) 5V powered system (optional) Overtemp AS3691 D1 ... Csup 100nF
www.austriamicrosystems.com (ptr) Revision 2.3 16 - 22 Then calculate the maximum power dissipation inside the AS3691. The worst case is maximum voltage supply (13V + 10%) together with LEDs with minimum forward voltage Ufmin : For these conditions the maximum voltage on any current source (CURR1 to CURR4) is In our example 14.3V – 9.6V = 4.7V. The maximum power dissipation inside the AS3691 is now (assuming 4 identical strings) In our example 1.88W. As the system can be operated safely up to an ambient temperature of 55°C assuming worst case power supplies and worst case leds. Please note: If the internal junction temperature of the AS3691 rises too high, the AS3691 will switch off the current sources for protection (it will never damage the AS3691).
9.1.1 Using Automatic Supply Regulation
For the identical system using the automatic supply regulation, the supply is regulated to minimize the power dissipation of the system. Therefore the tolerance of the VDD supply and also the variation in forward voltages of the LEDs can be ignored (only the difference in one lot of leds is still important, as the four strings are connected in parallel to the power supply). Assume a difference of ΔUf = 0.2V of forward voltage of the leds in one lot, then calculate the maximum voltage on the current source of the AS3691 (CURR1 to CURR4) with to be 1.6V. Using the identical formulas as above, PMAX now is 0.64W and TMAX is 110°C. Therefore using automatic supply regulation, the ambient temperature can be up to 110°C under identical conditions.
9.2 Layout Recommendations
See austriamicrosystems ‘AN3691_TECH_Module Description’ as a layout example for the AS3691. Layout Checklist 1. Use the bottom layer as ground plane and minimize the number and the length of connections within this layer 2. Do as many vias as possible on the exposed pad (for thermal performance) to the ground plane 3. Connect RFBx and RESx together at the current set resistor Rix (see above recommended layout) 4. The ground connections of the current set resistor s should be as close to the AS3691 as possible 5. The ground connection of the capacitor Cvdd s hould be as close as possible to the AS3691 6. Minimize Area build by ‘Csup VSS connection – Csup Supply Connection – LEDs – CURRx – Csup VSS connection’ (to minimize inductance in this path) ( ) min1 fTOLMAX UnVDDVDDVCURR −+= ICURRVCURRP MAXMAX 4= CP PPTT DERATE MAX MAX o50+−= For PT and PDERATE see Absolute Maximum Ratings CfMAX VUnVCURR +Δ= Using automatic supply regulation ΔUf variation of LED forward voltage in one lot (for one application) VC is internal set voltage (1.0V) Not using automatic supply regulation
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10.1 QFN 4x4 Package Drawings and Marking
Figure 16 – QFN 24 – 4x4mm Marking: Line 1: austriamicrosystems Logo Line 2: AYWWIZZ A = Pb-Free Identifier Y = Year WW = Week I = Plant Identifier ZZ = Letters of Free Choice Line 3: AS3691, AS3691A or AS3691B
www.austriamicrosystems.com (ptr) Revision 2.3 18 - 22 Figure 17 – QFN 24 – 4x4mm Detail Dimensions
www.austriamicrosystems.com (ptr) Revision 2.3 19 - 22 10.2 ePTSSOP Package Drawings and Marking Figure 18 – ePTSSOP Package Drawing
www.austriamicrosystems.com (ptr) Revision 2.3 20 - 22 Marking: Line 1: austriamicrosystems Logo Line 2: AYWWIZZ A = Pb-Free Identifier Y = Year WW = Week I = Plant Identifier ZZ = Letters of Free Choice Line 3: AS3691, AS3691A or AS3691B Figure 19 – ePTSSOP Package Drawing Detail Dimenstions
10.3 DIE Delivery
Please contact austriamicrosystems for die delivery.
www.austriamicrosystems.com (ptr) Revision 2.3 21 - 22 Table 7 – Ordering Information Part Number Marking Package Type Delivery Form Description AS3691A-ZQFP AS3691A 1) -or- AS3691 1) QFN 24 4x4mm Tape and Reel in Dry Pack Package Size = 4x4x0.85mm, Pitch = 0.5mm, Pb-Free; 10mV on VRES for ON=0 AS3691A-ZQFT AS3691A QFN 24 4x4mm Trays in Dry Pack Package Size = 4x4x0.85mm, Pitch = 0.5mm, Pb-Free; 10mV on VRES for ON=0 AS3691A-ZSDF2) (AS3691A) Sorted Wafers Cut Dies on Foil Sorted Wafers; 10mV on VRES for ON=0 AS3691B-ZQFP AS3691B QFN 24 4x4mm Tape and Reel in Dry Pack Package Size = 4x4x0.85mm, Pitch = 0.5mm, Pb-Free; 0mV on VRES for ON=0 AS3691B-ZSDF2) (AS3691B) Sorted Wafers Cut Dies on Foil Sorted Wafers; 0mV on VRES for ON=0 AS3691A-ZTSP2) AS3691A ePTSSOP Tape and Reel in Dry Pack Enhanced Power TSSOP (with power pad), Body Size=4.4mm Pitch = 0.65mm, Pb-Free; 10mV on VRES for ON=0 AS3691B-ZTSP AS3691B ePTSSOP Tape and Reel in Dry Pack Enhanced Power TSSOP (with power pad), Body Size=4.4mm Pitch = 0.65mm, Pb-Free; 0mV on VRES for ON=0 Note: 1) AS3691 with 10mV on VRES for ON=0 can be marked with ‘AS3691’ or ‘AS3691A’ (identical behavior) 2) Contact austriamicrosystems for availability Description: AS3691V-CPPD V … AS3691 Version, either A or B AS3691A: 10mV on VRESx (x=1 to 4) if ONx = 0 (see ‘7 Detailed Functional Description’) AS3691B: 0mV on VRESx (x=1 to 4) if ONx = 0 (see ‘7 Detailed Functional Description’) C … Temperature range -20 °C - 85°C PP … Package; QF for QFN, SD for sorted DIEs, TS for enhanced Power TSSOP D … Delivery From; P for Tape&Reel in Dry Pack, F for cut dies on foil, T for Trays in Dry Pack
www.austriamicrosystems.com (ptr) Revision 2.3 22 - 22 Copyright Copyright © 1997-2007, austriamicrosystems AG, Schloss Premstaetten, 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. All products and companies mentioned are trademarks or registered trademarks of their respective companies. Diclaimer 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 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 current information. This product is intended for use in normal commercial applications. Applications requiring extended temperature range, unusual environmental requirements, or high reliability applications, such as military, medical life-support or lifesustaining equipment are specifically not recommended without additional processing by austriamicrosystems AG for each application. For shipments of less than 100 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 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, 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. Contact Information Headquarters austriamicrosystems AG A-8141 Schloss Premstätten, Austria T. +43 (0) 3136 500 0 F. +43 (0) 3136 5692 For Sales Offices, Distributors and Representatives, please visit: http://www.austriamicrosystems.com/contact