Neutron, TID and ELDRS Radiation Test Report MSK 5826RH (MSK5823RH, MSK5824RH, MSK5825RH) Radiation Hardened Ultra Low Dropout Positive Adjustable Linear Regulator December 26, 2008 (TID - First Test) June 18, 2009 (ELDRS Test) September 03, 2009 (TID - Second Test) November 06, 2009 (TID - Third Test) May 14, 2010 (TID – Fourth Test) August 24, 2010 (Neutron Fluence) September 17, 2010 (TID – Fifth Test) July 8, 2011 (TID – Sixth Test) August 16, 2013 (TID – Seventh Test, IC Wafer Lot: WD0051441#9 Transistor Wafer Lot: CJ302831#21) B. Horton C. Salce M.S. Kennedy Corporation Liverpool, NY Page 1 of 66 I. Introduction: The total dose radiation test plan for the MSK 5826RH series was developed to qualify the devices as RAD Hard to 300 KRADS(Si). The testing was performed beyond 300 KRADS(Si) to show trends in device performance as a function of total dose. The test does not classify maximum radiation tolerance of the device, but simply offers designers insight to the critical parameter-shifts up to the specified total dose level. The MSK5823RH, MSK5824RH, MSK5825RH and MSK5826RH all use the same active components. The data in this report is from the direct measurement of the MSK5826RH response to irradiation but it is indicative of the response of all four device types and is applicable to all four types. MIL-STD-883 Method 1019.7 and ASTM F1892-06 were used as guidelines in the development and implementation of the total dose test plan for the MSK 5826RH. II. Radiation Source: Total dose was performed at the University of Massachusetts, Lowell, using a cobalt 60 radiation source. The dose rate was determined to be 91Rads(Si)/sec. The total dose schedule can be found in Table I. III. Test Setup: All test samples were subjected to Group A Electrical Test at 25C in accordance with the device data sheet. In addition, all devices received 320 hours of burn-in per MIL-STD-883 Method 1015. For test platform verification, one control device was tested at 25C. Ten devices were then tested at 25°C, prior to irradiation, and were found to be within acceptable test limits. The devices were vertically aligned with the radiation source and enclosed in a lead/aluminum container during irradiation. Five devices were kept under bias during irradiation. Maximum recommended operating voltage of +6.5V was used for the bias condition. Five devices had all leads grounded during irradiation for the unbiased condition. After each irradiation the device leads were shorted together and transported to the MSK automatic electrical test platform and tested IAW MSK device data sheet. Testing was performed on irradiated devices, as well as the control device, at each total dose level. Electrical tests were completed within one hour of irradiation. Devices were subjected to subsequent radiation doses within two hours of removal from the radiation field. IV. Data: All performance curves are averaged from the test results of the biased and unbiased devices, respectively. If required, full test data can be obtained by contacting M.S. Kennedy Corporation. V. Summary: Based on the test data recorded during radiation testing and statistical analysis, the MSK5826RH qualified as a 300 Krad(Si) radiation hardened device. Load Regulation, Shutdown Threshold and Output Current Limit exhibited the most significant shift due to irradiation, however all performance curves stayed within specification up to 450 Krad(Si) TID. Page 2 of 66 MSK 5826RH Biased/Unbiased Dose Rate Schedule Dosimetry Equipment Bruker Biospin # 0162 Irradiation Date 8/16/13 Exposure Length (min:sec) Incremental Dose rads(Si) Cumulative Dose rads(Si) 18:52 9:26 28:18 28:18 103,012 51,506 154,518 154,518 103,012 154,518 309,036 463,554 Biased S/N – 1551, 1552, 1553, 1554, 155 Unbiased S/N – 1556, 1557, 1558, 1559, 1560 Table 1 Dose Time, Incremental Dose and Total Cumulative Dose Page 3 of 66 Page 4 of 66 Page 5 of 66 Page 6 of 66 Page 7 of 66 Page 8 of 66 Neutron, TID and ELDRS Radiation Test Report MSK 5826RH (MSK5823RH, MSK5824RH, MSK5825RH) Radiation Hardened Ultra Low Dropout Positive Adjustable Linear Regulator December 26, 2008 (TID - First Test) June 18, 2009 (ELDRS Test) September 03, 2009 (TID - Second Test) November 06, 2009 (TID - Third Test) May 14, 2010 (TID – Fourth Test) August 24, 2010 (Neutron Fluence) September 17, 2010 (TID – Fifth Test) July 8, 2011 (TID – Sixth Test) B. Horton C. Salce M.S. Kennedy Corporation Liverpool, NY Page 9 of 66 I. Introduction: The total dose radiation test plan for the MSK 5826RH series was developed to qualify the devices as RAD Hard to 300 KRADS(Si). The testing was performed beyond 300 KRADS(Si) to show trends in device performance as a function of total dose. The test does not classify maximum radiation tolerance of the device, but simply offers designers insight to the critical parameter-shifts up to the specified total dose level. The MSK5823RH, MSK5824RH, MSK5825RH and MSK5826RH all use the same active components. The data in this report is from the direct measurement of the MSK5826RH response to irradiation but it is indicative of the response of all four device types and is applicable to all four types. MIL-STD-883 Method 1019.7 and ASTM F1892-06 were used as guidelines in the development and implementation of the total dose test plan for the MSK 5826RH. II. Radiation Source: Total dose was performed at the University of Massachusetts, Lowell, using a cobalt 60 radiation source. The dose rate was determined to be 122 Rads(Si)/sec. The total dose schedule can be found in Table I. III. Test Setup: All test samples were subjected to Group A Electrical Test at 25C in accordance with the device data sheet. In addition, all devices received 320 hours of burn-in per MIL-STD-883 Method 1015. For test platform verification, one control device was tested at 25C. Ten devices were then tested at 25°C, prior to irradiation, and were found to be within acceptable test limits. The devices were vertically aligned with the radiation source and enclosed in a lead/aluminum container during irradiation. Five devices were kept under bias during irradiation. Maximum recommended operating voltage of +6.5V was used for the bias condition. Five devices had all leads grounded during irradiation for the unbiased condition. After each irradiation the device leads were shorted together and transported to the MSK automatic electrical test platform and tested IAW MSK device data sheet. Testing was performed on irradiated devices, as well as the control device, at each total dose level. Electrical tests were completed within one hour of irradiation. Devices were subjected to subsequent radiation doses within two hours of removal from the radiation field. IV. Data: All performance curves are averaged from the test results of the biased and unbiased devices, respectively. If required, full test data can be obtained by contacting M.S. Kennedy Corporation. V. Summary: Based on the test data recorded during radiation testing and statistical analysis, the MSK5826RH qualified as a 300 Krad(Si) radiation hardened device. Load Regulation, Shutdown Threshold and Output Current Limit exhibited the most significant shift due to irradiation, however all performance curves stayed within specification up to 450 Krad(Si) TID. Page 10 of 66 MSK 5826RH Biased/Unbiased Dose Rate Schedule Dosimetry Equipment Bruker Biospin # 0162 Irradiation Date 7/8/11 Exposure Length (min:sec) Incremental Dose rads(Si) Cumulative Dose rads(Si) 14:05 7:02 21:06 21:06 103,090 51,484 154,452 154,452 103,090 154,574 309,012 463,478 Biased S/N – 1077, 1079, 1080,1081,1082 Unbiased S/N – 1083, 1084, 1085, 1086, 1088 Table 1 Dose Time, Incremental Dose and Total Cumulative Dose Page 11 of 66 Page 12 of 66 Page 13 of 66 Page 14 of 66 Page 15 of 66 Neutron, TID and ELDRS Radiation Test Report MSK 5826RH (MSK5823RH, MSK5824RH, MSK5825RH) Radiation Hardened Ultra Low Dropout Positive Adjustable Linear Regulator December 26, 2008 (TID - First Test) June 18, 2009 (ELDRS Test) September 03, 2009 (TID - Second Test) November 06, 2009 (TID - Third Test) May 14, 2010 (TID – Fourth Test) August 24, 2010 (Neutron Fluence) September 17, 2010 (TID – Fifth Test) B. Horton R. Wakeman M.S. Kennedy Corporation Liverpool, NY Page 16 of 66 I. Introduction: The total dose radiation test plan for the MSK 5826RH series was developed to qualify the devices as RAD Hard to 300 KRADS(Si). The testing was performed beyond 300 KRADS(Si) to show trends in device performance as a function of total dose. The test does not classify maximum radiation tolerance of the device, but simply offers designers insight to the critical parameter-shifts up to the specified total dose level. The MSK5823RH, MSK5824RH, MSK5825RH and MSK5826RH all use the same active components. The data in this report is from the direct measurement of the MSK5826RH response to irradiation but it is indicative of the response of all four device types and is applicable to all four types. MIL-STD-883 Method 1019.7 and ASTM F1892-06 were used as guidelines in the development and implementation of the total dose test plan for the MSK 5826RH. II. Radiation Source: Total dose was performed at the University of Massachusetts, Lowell, using a cobalt 60 radiation source. The dose rate was determined to be 132 Rads(Si)/sec. The total dose schedule can be found in Table I. III. Test Setup: All test samples were subjected to Group A Electrical Test at 25C in accordance with the device data sheet. In addition, all devices received 320 hours of burn-in per MIL-STD-883 Method 1015. For test platform verification, one control device was tested at 25C. Ten devices were then tested at 25°C, prior to irradiation, and were found to be within acceptable test limits. The devices were vertically aligned with the radiation source and enclosed in a lead/aluminum container during irradiation. Five devices were kept under bias during irradiation. Maximum recommended operating voltage of +6.5V was used for the bias condition. Five devices had all leads grounded during irradiation for the unbiased condition. After each irradiation the device leads were shorted together and transported to the MSK automatic electrical test platform and tested IAW MSK device data sheet. Testing was performed on irradiated devices, as well as the control device, at each total dose level. Electrical tests were completed within one hour of irradiation. Devices were subjected to subsequent radiation doses within two hours of removal from the radiation field. IV. Data: All performance curves are averaged from the test results of the biased and unbiased devices, respectively. If required, full test data can be obtained by contacting M.S. Kennedy Corporation. V. Summary: Based on the test data recorded during radiation testing and statistical analysis, the MSK5826RH qualified as a 300 Krad(Si) radiation hardened device. Reference Voltage, Shutdown Threshold and Output Current Limit exhibited the most significant shift due to irradiation, however all performance curves stayed within specification up to 450 Krad(Si) TID. Page 17 of 66 MSK 5826RH Biased/Unbiased Dose Rate Schedule Dosimetry Equipment Bruker Biospin # 0162 Irradiation Date 09/17/10 Exposure Length (min:sec) Incremental Dose rads(Si) Cumulative Dose rads(Si) 13:00 6:30 19:31 19:31 102,960 51,480 154,572 154,572 102,960 154,440 309,012 463,584 Biased S/N – 0954, 0955, 0956, 0957, 0958 Unbiased S/N – 0959, 0960, 0961, 0962, 0963 Table 1 Dose Time, Incremental Dose and Total Cumulative Dose Page 18 of 66 Page 19 of 66 Page 20 of 66 Page 21 of 66 Page 22 of 66 Neutron, TID and ELDRS Radiation Test Report MSK 5826RH (MSK5823RH, MSK5824RH, MSK5825RH) Radiation Hardened Ultra Low Dropout Positive Adjustable Linear Regulator December 26, 2008 (TID - First Test) June 18, 2009 (ELDRS Test) September 03, 2009 (TID - Second Test) November 06, 2009 (TID - Third Test) May 14, 2010 (TID – Fourth Test) August 24, 2010 (Neutron Fluence) C. Salce M. Bilecki M.S. Kennedy Corporation Liverpool, NY Page 23 of 66 I. Introduction: The neutron irradiation test for the MSK 5826RH was performed to determine the change in device performance as a function of neutron fluence. The neutron irradiation test plan for the MSK 5826RH was developed to characterize neutron fluence sensitivity for devices incorporating active components including the Linear Tech RH1573 die and a PNP pass transistor. These devices include, but are not limited to, MSK5800RH, MSK5810RH, MSK5820RH, MSK5821RH, MSK5822RH, MSK5823RH, MSK5824RH, MSK5825RH, MSK5826RH, MSK5951RH, MSK1832RH and MSK1835RH. Neutron irradiation testing was performed to 1.08E+12 n/cm² total neutron fluence. The test does not classify maximum radiation tolerance of the device, but simply offers designers insight to the critical parameter-shifts up to the specified neutron fluence level. The data in this report is from direct measurement of the MSK 5826RH response to neutron irradiation. MIL-STD-883 Method 1017.2 was used as a guideline in the development and implementation of the neutron irradiation test plan for the MSK 5826RH. II. Radiation Source: Neutron irradiation was performed at the University of Massachusetts, Lowell, using the Reactor Facility-FNI. Neutron flux was determined by the dosimetry system S/P-32, ASTM E-265 to be 5.03 x 10⁸ n/cm2-s, 1MeV equivalent for step 1. The flux was increased to 1.01 x 10⁹ n/cm2-s for steps 2 and 3. III. Test Setup: All test samples were subjected to Group A Electrical Test in accordance with the device data sheet. In addition, all devices received 320 hours of burn-in per MIL-STD-883 Method 1015 and were fully screened IAW MIL-PRF-38534 Class K. For test platform verification, one control device was tested at 25C. Ten devices were then tested at 25°C, prior to irradiation, and were found to be within acceptable test limits. During irradiation, devices leads were shorted together using antistatic foam and then devices were placed into an anti-static bag. Devices were vertically aligned with the radiation source. After each irradiation, the devices were transported to the MSK automatic electrical test platform. Testing was performed in accordance with the MSK device data sheet. Testing was performed on the irradiated devices, as well as the control device, at each fluence level. Electrical tests were completed within two hours of irradiation. IV. Data: All performance curves are averaged from the test results of the irradiated devices. If required, full test data can be obtained by contacting M.S. Kennedy Corporation. V. Summary: Based on the test data recorded during neutron irradiation testing and statistical analysis, the MSK5826RH shows immunity to displacement damage. Dropout voltage and Output Current Limit exhibited the most significant shift due to irradiation, however all performance curves stayed well within specification. Page 24 of 66 MSK5826RH Neutron Irradiation Reactor Facility – Fast Neutron Irradiation (FNI) Dosimetry System: S/P-32 (ASTM E-265) Exposure Date: 8/20/10 Irradiation Reactor Power (kW) Gamma Dose Rad(Si) Flux (n/cm²-s) Tim e (s) Fluence (n/cm²) Total Fluence (n/cm²) Step 1 4.5 17 5.30E+08 330 1.75E+11 1.75E+11 Step 2 9.5 43 1.01E+09 398 4.02E+11 5.77E+11 Step 3 9.5 54 1.01E+09 498 5.03E+11 1.08E+12 Page 25 of 66 Page 26 of 66 Page 27 of 66 Page 28 of 66 Page 29 of 66 TID and ELDRS Radiation Test Report MSK 5826RH (MSK 5823RH, MSK 5824RH, MSK 5825RH) Radiation Hardened Ultra Low Dropout Positive Adjustable Linear Regulator December 26, 2008 (TID - First Test) June 18, 2009 (ELDRS Test) September 03, 2009 (TID - Second Test) November 06, 2009 (TID - Third Test) May 14, 2010 (TID – Fourth Test) M. Bilecki B. Erwin M.S. Kennedy Corporation Liverpool, NY Page 30 of 66 I. Introduction: The total dose radiation test plan for the MSK 5826RH series was developed to qualify the devices as RAD Hard to 300 KRADS(Si). The testing was performed beyond 300 KRADS(Si) to show trends in device performance as a function of total dose. The test does not classify maximum radiation tolerance of the device, but simply offers designers insight to the critical parameter-shifts up to the specified total dose level. The MSK5823RH, MSK5824RH, MSK5825RH and MSK5826RH all use the same active components. The data in this report is from the direct measurement of the MSK5826RH response to irradiation but it is indicative of the response of all four device types and is applicable to all four types. MIL-STD-883 Method 1019.7 and ASTM F1892-06 were used as guidelines in the development and implementation of the total dose test plan for the MSK 5826RH. II. Radiation Source: Total dose was performed at the University of Massachusetts, Lowell, using a cobalt 60 radiation source. The dose rate was determined to be 138 Rads(Si)/sec. The total dose schedule can be found in Table I. III. Test Setup: All test samples were subjected to Group A Electrical Test at 25C in accordance with the device data sheet. In addition, all devices received 320 hours of burn-in per MIL-STD-883 Method 1015. For test platform verification, one control device was tested at 25C. Ten devices were then tested at 25°C, prior to irradiation, and were found to be within acceptable test limits. The devices were vertically aligned with the radiation source and enclosed in a lead/aluminum container during irradiation. Five devices were kept under bias during irradiation. Maximum recommended operating voltage of +6.5V was used for the bias condition. Five devices had all leads grounded during irradiation for the unbiased condition. After each irradiation the device leads were shorted together and transported to the MSK automatic electrical test platform and tested IAW MSK device data sheet. Testing was performed on irradiated devices, as well as the control device, at each total dose level. Electrical tests were completed within one hour of irradiation. Devices were subjected to subsequent radiation doses within two hours of removal from the radiation field. IV. Data: All performance curves are averaged from the test results of the biased and unbiased devices, respectively. If required, full test data can be obtained by contacting M.S. Kennedy Corporation. V. Summary: Based on the test data recorded during radiation testing and statistical analysis, the MSK5826RH qualified as a 300 Krad(Si) radiation hardened device. Reference Voltage, Shutdown Threshold and Output Current Limit exhibited the most significant shift due to irradiation, however all performance curves stayed within specification up to 450 Krad(Si) TID. Page 31 of 66 MSK 5826RH Biased/Unbiased Dose Rate Schedule Dosimetry Equipment Bruker Biospin # 0141 Irradiation Date 05/14/10 Exposure Length (min:sec) Incremental Dose rads(Si) Cumulative Dose rads(Si) 12:27 6:14 18:40 18:40 106,086 51,612 154,560 154,560 106,086 154,698 309,258 463,818 Biased S/N – 0827, 0828, 0829, 0830, 0831 Unbiased S/N – 0832, 0833, 0834, 0835, 0836 Table 1 Dose Time, Incremental Dose and Total Cumulative Dose Page 32 of 66 Page 33 of 66 Page 34 of 66 Page 35 of 66 Page 36 of 66 TID and ELDRS Radiation Test Report MSK 5826RH (MSK 5823RH, MSK 5824RH, MSK 5825RH) Radiation Hardened Ultra Low Dropout Positive Adjustable Linear Regulator December 26, 2008 (TID - First Test) June 18, 2009 (ELDRS Test) September 03, 2009 (TID - Second Test) November 06, 2009 (TID - Third Test) M. Bilecki B. Erwin M.S. Kennedy Corporation Liverpool, NY Page 37 of 66 I. Introduction: The total dose radiation test plan for the MSK 5826RH series was developed to qualify the devices as RAD Hard to 300 KRADS(Si). The testing was performed beyond 300 KRADS(Si) to show trends in device performance as a function of total dose. The test does not classify maximum radiation tolerance of the device, but simply offers designers insight to the critical parameter-shifts up to the specified total dose level. The MSK5823RH, MSK5824RH, MSK5825RH and MSK5826RH all use the same active components. The data in this report is from the direct measurement of the MSK5826RH response to irradiation but it is indicative of the response of all four device types and is applicable to all four types. MIL-STD-883 Method 1019.7 and ASTM F1892-06 were used as guidelines in the development and implementation of the total dose test plan for the MSK 5826RH. II. Radiation Source: Total dose was performed at the University of Massachusetts, Lowell, using a cobalt 60 radiation source. The dose rate was determined to be 156 Rads(Si)/sec. The total dose schedule can be found in Table I. III. Test Setup: All test samples were subjected to Group A Electrical Test at 25C in accordance with the device data sheet. In addition, all devices received 320 hours of burn-in per MIL-STD-883 Method 1015. For test platform verification, one control device was tested at 25C. Ten devices were then tested at 25°C, prior to irradiation, and were found to be within acceptable test limits. The devices were vertically aligned with the radiation source and enclosed in a lead/aluminum container during irradiation. Five devices were kept under bias during irradiation. Maximum recommended operating voltage of +6.5V was used for the bias condition. Five devices had all leads grounded during irradiation for the unbiased condition. After each irradiation the device leads were shorted together and transported to the MSK automatic electrical test platform and tested IAW MSK device data sheet. Testing was performed on irradiated devices, as well as the control device, at each total dose level. Electrical tests were completed within one hour of irradiation. Devices were subjected to subsequent radiation doses within two hours of removal from the radiation field. IV. Data: All performance curves are averaged from the test results of the biased and unbiased devices, respectively. If required, full test data can be obtained by contacting M.S. Kennedy Corporation. V. Summary: Based on the test data recorded during radiation testing and statistical analysis, the MSK5826RH qualified as a 300 Krad(Si) radiation hardened device. Reference Voltage, Shutdown Threshold and Output Current Limit exhibited the most significant shift due to irradiation, however all performance curves stayed within specification up to 450 Krad(Si) TID. Page 38 of 66 MSK 5826RH Biased/Unbiased Dose Rate Schedule Dosimetry Equipment Bruker Biospin # 0141 Irradiation Date 11/06/09 Exposure Length (min:sec) Incremental Dose rads(Si) Cumulative Dose rads(Si) 8:16 8:16 8:16 8:16 16:35 77,376 77,376 77,376 77,376 154,752 77376 154,752 232,128 309,504 464,256 Biased S/N – 0541, 0542, 0543, 0544, 0545 Unbiased S/N – 0546, 0547, 0548, 0549, 0550 Table 1 Dose Time, Incremental Dose and Total Cumulative Dose Page 39 of 66 MSK5826RH Quiescent Current vs. Total Dose Quiescent Current (mA) 12.0 11.0 Avg gnd Avg bias Control 10.0 9.0 8.0 7.0 0K 75K 150K 225K 300K 450K Total dose (rad(SI)) MSK5826RH Reference Voltage vs. Total Dose 1.320 Reference Voltage (V) 1.310 1.300 1.290 Avg gnd 1.280 Avg bias 1.270 Control 1.260 1.250 1.240 1.230 0K 75K 150K 225K 300K 450K Total dose (rad(SI)) Page 40 of 66 MSK5826RH Line Regulation vs. Total Dose Output Voltage Delta (mV) 8.0 6.0 4.0 2.0 Avg gnd 0.0 Avg bias -2.0 Control -4.0 -6.0 -8.0 0K 75K 150K 225K 300K 450K Total dose (rad(SI)) MSK5826RH Load Regulation vs. Total Dose Output Voltage Delta (mV) 10.0 8.0 6.0 Avg gnd 4.0 Avg bias 2.0 Control 0.0 -2.0 -4.0 0K 75K 150K 225K 300K 450K Total dose (rad(SI)) Page 41 of 66 MSK5826RH Dropout Voltage vs. Total Dose Dropout Voltage (V) 0.40 0.36 Avg gnd 0.32 Avg bias 0.28 Control 0.24 0.20 0K 75K 150K 225K 300K 450K Total dose (rad(SI)) MSK5826RH Output Current Limit vs. Total Dose Output Current Limit (A) 8.00 7.50 7.00 Avg gnd 6.50 Avg bias 6.00 Control 5.50 5.00 4.50 0K 75K 150K 225K 300K Total dose (rad(SI)) 450K Page 42 of 66 MSK5826RH Shutdown Threshold vs. Total Dose Shutdown Threshold (V) 1.60 1.55 1.50 Avg gnd 1.45 Avg bias 1.40 Control 1.35 1.30 1.25 0K 75K 150K 225K 300K 450K Total dose (rad(SI)) Vout at Shutdown (V) MSK5826RH Shutdown Voltage vs. Total Dose 0.1 0.08 0.06 0.04 0.02 0 -0.02 -0.04 -0.06 -0.08 -0.1 Avg gnd Avg bias Control 0K 75K 150K 225K 300K 450K Total dose (rad(SI)) Page 43 of 66 TID and ELDRS Radiation Test Report MSK 5826RH Radiation Hardened Ultra Low Dropout Positive Adjustable Linear Regulator December 26, 2008 (TID - First Test) June 18, 2009 (ELDRS Test) September 03, 2009 (TID - Second Test) M. Bilecki B. Erwin M.S. Kennedy Corporation Liverpool, NY Page 44 of 66 I. Introduction: The total dose radiation test plan for the MSK 5826RH series was developed to qualify the devices as RAD Hard to 300 KRADS(Si). The testing was performed beyond 300 KRADS(Si) to show trends in device performance as a function of total dose. The test does not classify maximum radiation tolerance of the device, but simply offers designers insight to the critical parameter-shifts up to the specified total dose level. The MSK5823RH, MSK5824RH, MSK5825RH and MSK5826RH all use the same active components. The data in this report is from the direct measurement of the MSK5826RH response to irradiation but it is indicative of the response of all four device types and is applicable to all four types. MIL-STD-883 Method 1019.7 and ASTM F1892-06 were used as guidelines in the development and implementation of the total dose test plan for the MSK 5826RH. II. Radiation Source: Total dose was performed at the University of Massachusetts, Lowell, using a cobalt 60 radiation source. The dose rate was determined to be 168 Rads(Si)/sec. The total dose schedule can be found in Table I. III. Test Setup: All test samples were subjected to Group A Electrical Test at 25C in accordance with the device data sheet. In addition, all devices received 320 hours of burn-in per MIL-STD-883 Method 1015. For test platform verification, one control device was tested at 25C. Ten devices were then tested at 25°C, prior to irradiation, and were found to be within acceptable test limits. The devices were vertically aligned with the radiation source and enclosed in a lead/aluminum container during irradiation. Five devices were kept under bias during irradiation. Maximum recommended operating voltage of +6.5V was used for the bias condition. Five devices had all leads grounded during irradiation for the unbiased condition. After each irradiation the device leads were shorted together and transported to the MSK automatic electrical test platform and tested IAW MSK device data sheet. Testing was performed on irradiated devices, as well as the control device, at each total dose level. Electrical tests were completed within one hour of irradiation. Devices were subjected to subsequent radiation doses within two hours of removal from the radiation field. IV. Data: All performance curves are averaged from the test results of the biased and unbiased devices, respectively. If required, full test data can be obtained by contacting M.S. Kennedy Corporation. V. Summary: Based on the test data recorded during radiation testing and statistical analysis, the MSK5826RH qualified as a 300 Krad(Si) radiation hardened device. Reference Voltage, Shutdown Threshold and Output Current Limit exhibited the most significant shift due to irradiation, however all performance curves stayed within specification up to 450 Krad(Si) TID. Page 45 of 66 MSK 5826RH Biased/Unbiased Dose Rate Schedule Dosimetry Equipment Bruker Biospin # 0141 Irradiation Date 09/03/09 Exposure Length (min:sec) Incremental Dose rads(Si) Cumulative Dose rads(Si) 5:07 5:07 5:07 5:07 10:13 15:20 51,576 51,576 51,576 51,576 102,984 154,560 51,576 103,152 154,728 206,304 309,288 463,848 Biased S/N – 0507, 0508, 0509, 0510, 0511 Unbiased S/N – 0512, 0513, 0514, 0515, 0516 Table 1 Dose Time, Incremental Dose and Total Cumulative Dose Page 46 of 66 MSK5826RH Reference Voltage vs. Total Dose Reference Voltage (V) 1.31 1.3 1.29 1.28 Avg gnd Avg bias Control 1.27 1.26 1.25 1.24 1.23 0K 50K 100K 150K 200K 300K 450K Total dose (rad(SI)) MSK5826RH Line Regulation vs. Total Dose Output Voltage Delta (mV) 8 6 4 2 Avg gnd Avg bias Control 0 -2 -4 -6 -8 0K 50K 100K 150K 200K 300K 450K Total dose (rad(SI)) Page 47 of 66 MSK5826RH Load Regulation vs. Total Dose Output Voltage Delta (mV) 0 -4 -8 Avg gnd Avg bias Control -12 -16 -20 0K 50K 100K 150K 200K 300K 450K Total dose (rad(SI)) MSK5826RH Output Current Limit vs. Total Dose Output Current Limit (A) 8 7.5 7 Avg gnd Avg bias Control 6.5 6 5.5 5 4.5 0K 50K 100K 150K 200K Total dose (rad(SI)) 300K 450K Page 48 of 66 MSK5826RH Dropout Voltage vs. Total Dose 0.36 Dropout Voltage (V) 0.34 0.32 0.3 Avg gnd Avg bias Control 0.28 0.26 0.24 0.22 0.2 0K 50K 100K 150K 200K 300K 450K Total dose (rad(SI)) MSK5826RH Shutdown Threshold vs. Total Dose Shutdown Threshold (V) 1.6 1.55 1.5 Avg gnd Avg bias Control 1.45 1.4 1.35 1.3 1.25 0K 50K 100K 150K 200K 300K 450K Total dose (rad(SI)) Page 49 of 66 Vout at Shutdown (V) MSK5826RH Shutdown Voltage vs. Total Dose 0.1 0.08 0.06 0.04 0.02 0 -0.02 -0.04 -0.06 -0.08 -0.1 Avg gnd Avg bias Control 0K 50K 100K 150K 200K 300K 450K Total dose (rad(SI)) Page 50 of 66 ELDRS Radiation Test Report MSK 5826RH Radiation Hardened Ultra Low Dropout Positive Adjustable Linear Regulator December 26, 2008 (First Test) June 18, 2009 (Second Test) B. Erwin M.S. Kennedy Corporation Liverpool, NY Page 51 of 66 I. Introduction: The ELDRS radiation test plan for the MSK 5826RH was developed to characterize ELDRS sensitivity for devices incorporating active components including the Linear Tech RH1573 die and a PNP pass transistor. These devices include, but are not limited to, MSK5800RH, MSK5810RH, MSK5820RH, MSK5821RH, MSK5822RH, MSK5823RH, MSK5824RH, MSK5826RH, and MSK5826RH. ELDRS testing was performed to 100Krad(Si) accumulated dose. MIL-STD-883 Method 1019.7 Condition C and ASTM F1892-06 were used as guidelines in the development and implementation of the ELDRS test plan for the MSK 5826RH. II. Radiation Source: ELDRS test was performed at the University of Massachusetts, Lowell, using a cobalt 60 radiation source. Dosimetry was performed prior to device irradiation and the dose rate was determined to be 0.01 rads(Si)/sec. The ELDRS dose schedule can be found in Table I. III. Test Setup: All test samples were subjected to Group A Electrical Test in accordance with the device data sheet. In addition, all devices received 320 hours of burn-in per MIL-STD-883 Method 1015 and were electrically tested prior to irradiation. For test platform verification, one control device was tested at 25C. The devices were vertically aligned with the radiation source in the University of Massachusetts ELDRS facility, chamber #2. Five devices were kept under bias during irradiation. Maximum recommended operating voltages of + 6.5Volts was used for bias. Five devices had all leads grounded during irradiation for the unbiased condition. After each irradiation, the device leads were shorted together then the devices were packaged with dry ice for shipment, and shipped overnight to the MSK facility. Electrical testing to the MSK device data sheet was performed within 72 hours from the removal of the radiation source. Testing was performed on irradiated devices, as well as the control device, at each total dose level. Devices were then repackaged with dry ice for shipment and returned to the UMass facility overnight for subsequent dose level. Devices were returned to the irradiation field within 120 hours of removal from the radiation source per MIL-STD-883 Method 1019.7 Condition C. To prove that the device temperature did not exceed the irradiation chamber temperature it was verified that dry ice remained in the shipping container at each point during the shipping process IV. Data: All performance curves are averaged from the test results of the biased and unbiased devices respectively. V. Summary: The devices stayed within the pre irradiation test limits for all specifications. A change was noted in reference voltage. An increase of approximately 0.8 % occurred between 0 Krad(Si) and 100 Krad(si). However the devices still remained within pre irradiation limits. Line regulation, load regulation, and dropout voltage remained virtually unchanged throughout irradiation. Shutdown threshold did exhibit a 6% increase, but still stayed within all test limits. The output current limit of the devices decreased by approximately 7 %. The final current limit after irradiation remained nearly double the production limit minimum of 3 Amps however. Page 52 of 66 MSK 5826RH Biased/Unbiased Dose Rate Schedule Dosimetry Equipment Bruker Biospin # 0141 Irradiation Date 1/21/2009 – 6/10/2009 Exposure Length (hr:min:sec) Incremental Dose rads(Si) Cumulative Dose rads(Si) 142:28:00 260:42:00 431:44:00 617:35:00 4.96E3 9.05E3 1.49E4 2.12E4 4,960 14,000 28,900 50,100 758:48:00 2.57E4 75,800 815:07:07 2.73E4 103,000 Biased S/N – 0001, 0002, 0003, 0004, 0005 Unbiased S/N – 0006, 0007, 0008, 0009, 0010 Table 1 Dose Time, Incremental Dose and Total Cumulative Dose Page 53 of 66 MSK5826RH Reference Voltage vs. Total Dose Reference Voltage (V) 1.31 1.3 1.29 1.28 Avg gnd Avg bias Control 1.27 1.26 1.25 1.24 1.23 0K 5K 15K 30K 50K 75K 100K Total dose @ 0.01 rad(Si)/sec. Output Voltage Delta (%/V) MSK5826RH Line Regulation vs. Total Dose 0.25 0.2 0.15 0.1 0.05 0 -0.05 -0.1 -0.15 -0.2 -0.25 Avg gnd Avg bias Control 0K 5K 15K 30K 50K 75K 100K Total dose @ 0.01 rad(Si)/sec. Page 54 of 66 MSK5826RH Load Regulation vs. Total Dose Output Voltage Delts (%/A) 2.5 2 1.5 1 0.5 Avg gnd Avg bias Control 0 -0.5 -1 -1.5 -2 -2.5 0K 5K 15K 30K 50K 75K 100K Total dose @ 0.01 rad(Si)/sec. Dropout Voltage (V) MSK5826RH Dropout Voltage vs. Total Dose 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Avg gnd Avg bias Control 0K 5K 15K 30K 50K 75K 100K Total dose @ 0.01 rad(Si)/sec. Page 55 of 66 MSK5826RH Shutdown Threshold vs. Total Dose Shutdown Threshold (V) 1.6 1.5 1.4 Avg gnd Avg bias Control 1.3 1.2 1.1 1 0K 5K 15K 30K 50K 75K 100K Total dose @ 0.01 rad(Si)/sec. Output Current Limit (A) MSK5826RH Output Current Limit vs. Total Dose 7.7 7.2 6.7 6.2 5.7 5.2 4.7 4.2 3.7 3.2 Avg gnd Avg bias Control 0K 5K 15K 30K 50K 75K 100K Total dose @ 0.01 rad(Si)/sec. Page 56 of 66 Vout at Shutdown (V) MSK5826RH Shutdown Voltage vs. Total Dose 0.1 0.08 0.06 0.04 0.02 0 -0.02 -0.04 -0.06 -0.08 -0.1 Avg gnd Avg bias Control 0K 5K 15K 30K 50K 75K 100K Total dose @ 0.01 rad(Si)/sec. Page 57 of 66 Total Dose Radiation Test Report MSK 5826RH (MSK5823RH, MSK5824RH, MSK5825RH) RAD Hard Ultra Low Dropout Adjustable Positive Linear Regulator December 26, 2008 J. Douglas B. Erwin M.S. Kennedy Corporation Liverpool, NY Page 58 of 66 I. Introduction: The total dose radiation test plan for the MSK 5826RH series was developed to qualify the devices as RAD Hard to 300 KRADS(Si). The testing was performed beyond 300 KRADS(Si) to show trends in device performance as a function of total dose. The test does not classify maximum radiation tolerance of the device, but simply offers designers insight to the critical parameter-shifts up to the specified total dose level. The MSK5823RH, MSK5824RH, MSK5825RH and MSK5826RH all use the same active components. The data in this report is from the direct measurement of the MSK5826RH response to irradiation but it is indicative of the response of all four device types and is applicable to all four types. MIL-STD-883 Method 1019.7 and ASTM F1892-06 were used as guidelines in the development and implementation of the total dose test plan for the MSK 5826RH. II. Radiation Source: Total dose was performed at the University of Massachusetts, Lowell, using a cobalt 60 radiation source. The dose rate was determined to be 185 Rads(Si)/sec. The total dose schedule can be found in Table I. III. Test Setup: All test samples were subjected to Group A Electrical Test at 25C in accordance with the device data sheet. In addition, all devices received 320 hours of burn-in per MIL-STD-883 Method 1015. For test platform verification, one control device was tested at 25C. Ten devices were then tested at 25°C, prior to irradiation, and were found to be within acceptable test limits. The devices were vertically aligned with the radiation source and enclosed in a lead/aluminum container during irradiation. Five devices were kept under bias during irradiation. Maximum recommended operating voltage of +6.5V was used for the bias condition. Five devices had all leads grounded during irradiation for the unbiased condition. After each irradiation the device leads were shorted together and transported to the MSK automatic electrical test platform and tested IAW MSK device data sheet. Testing was performed on irradiated devices, as well as the control device, at each total dose level. Electrical tests were completed within one hour of irradiation. Devices were subjected to subsequent radiation doses within two hours of removal from the radiation field. IV. Data: All performance curves are averaged from the test results of the biased and unbiased devices, respectively. If required, full test data can be obtained by contacting M.S. Kennedy Corporation. V. Summary: Based on the test data recorded during radiation testing and statistical analysis, the MSK5826RH qualified as a 300 Krad(Si) radiation hardened device. Reference Voltage, Shutdown Threshold and Output Current Limit exhibited the most significant shift due to irradiation, however all performance curves stayed within specification up to 450 Krad(Si) TID. Page 59 of 66 MSK 5826RH Biased/Unbiased Dose Rate Schedule Dosimetry Equipment Bruker Biospin # 0141 Irradiation Date 12/16/08 Exposure Length (min:sec) Incremental Dose rads(Si) Cumulative Dose rads(Si) 4:38 4:38 4:38 4:38 9:17 13:55 51,430 51,430 51,430 51,430 103,045 154,475 51,430 102,860 154,290 205,720 308,765 463,240 Biased S/N – 0021, 0022, 0023, 0024, 0025 Unbiased S/N – 0026, 0027, 0028, 0029, 0030 Table 1 Dose Time, Incremental Dose and Total Cumulative Dose Page 60 of 66 MSK5826RH Reference Voltage vs. Total Dose 1.31 Reference Voltage (V) 1.3 1.29 1.28 Avg gnd Avg bias Control 1.27 1.26 1.25 1.24 1.23 0K 50K 100K 150K 200K 300K 450K Total dose (rad(Si)) Page 61 of 66 MSK5826RH Line Regulation vs. Total Dose 4.5V<Vin<5.5V, Vout=3.3V, Iout =50mA Output Voltage Delta (mV) 8 6 4 2 Avg gnd Avg bias Control 0 -2 -4 -6 -8 0K 50K 100K 150K 200K 300K 450K Total dose (rad(Si)) Page 62 of 66 Output Voltage Delta (mV) MSK5826RH Load Regulation vs. Total Dose Vin=5.0V, Vout=3.3V, 50mA<Iout<3.0A 16 14 12 10 8 6 4 2 0 -2 -4 Avg gnd Avg bias Control 0K 50K 100K 150K 200K 300K 450K Total dose (rad(Si)) MSK5826RH Dropout Voltage vs. Total Dose Iout = 3A Dropout Voltage (V) 0.35 0.33 0.31 Avg gnd Avg bias Control 0.29 0.27 0.25 0.23 0K 50K 100K 150K 200K 300K 450K Total dose (rad(Si)) Page 63 of 66 MSK5826RH Shutdown Threshold vs. Total Dose Shutdown Threshold (V) 1.5 1.45 1.4 Avg gnd Avg bias Control 1.35 1.3 1.25 0K 50K 100K 150K 200K 300K 450K Total dose (rad(Si)) Page 64 of 66 MSK5826RH Output Current Limit vs. Total Dose Vin = 5V, Vout = 3.3V Output Current Limit (A) 8 7.5 7 Avg gnd Avg bias Control 6.5 6 5.5 5 4.5 0K 50K 100K 150K 200K Total dose (rad(Si)) 300K 450K Page 65 of 66 MSK5826RH Output Voltage at Shutdown vs. Total Dose 0.1 Vout at Shutdown (V) 0.08 0.06 0.04 0.02 Avg gnd Avg bias Control 0 -0.02 -0.04 -0.06 -0.08 -0.1 0K 50K 100K 150K 200K 300K 450K Total dose (rad(Si)) Page 66 of 66