Intelligent Systems Design Shunt-LDO Measurements RD53B Testchip 1 Jendrik Zorn 29.05.2019
Voltage [V] 2.0 1.8 1.6 1.4 min max Vofshalf 0.000986 0.404241 0.405227 Vref -0.001209 0.604567 0.605776 Vout_Sense -0.00276 1.22925 1.23201 Iin_Sense 0.7 1.29994 1.99994 Iout_Sense -0.000426 0.562312 0.562738 Vrefpre -3.88E-06 4.56E-06 8.44E-06 Vprereg 0.00113 1.12503 1.12616 Line Regulation - LDO Vref=600mV,Irefset=1110,Rint 1.2 1.0 0.8 0.6 0.4 0.2 0.0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Input Voltage [V] Vofs Vref Vout_Sense Iin_Sense Iout_Sense Vrefpre Vprereg Masterthesis Measurements jendrik.zorn001@stud.fh-dortmund.de Slide 2
Voltage [V] 2.0 1.8 1.6 1.4 Line Regulation - SLDO Vofshalf=400mV,Vref=600mV,Irefset=1110,Rext=600Ω min max Vofs -0.002997 0.400817 0.403814 Vref -0.003095 0.598851 0.601946 Vout_Sense -0.00829 1.2163 1.22459 Iin_Sense 0.6072 1.33075 1.93795 Iout_Sense 0.014448 0.569847 0.584295 Vrefpre 0.00292448 0.00218613 0.00511061 Vprereg 0.02469 1.13612 1.16081 Slope = 0.7625 Ω Offset = 0.7141 V 1.2 1.0 0.8 0.6 0.4 0.2 0.0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Input Current [A] Vofshalf Vref Vout_Sense Iin_Sense Iout_Sense Vrefpre Vprereg Masterthesis Measurements jendrik.zorn001@stud.fh-dortmund.de Slide 3
Voltage [V] 2.0 1.8 1.6 1.4 Line Regulation - SLDO Vofshalf=650mV,Vref=600mV,Irefset=1110,Rext=600Ω min max Vofs -0.003004 0.651011 0.654015 Vref -0.003288 0.597901 0.601189 Vout_Sense -0.00526 1.2179 1.22316 Iin_Sense 0.32065 1.65471 1.97536 Iout_Sense 0.007925 0.567922 0.575847 Vrefpre 0.00147807 0.00145745 0.00293552 Vprereg 0.01368 1.13419 1.14787 1.2 1.0 0.8 Slope = 0.7128 Ω Offset = 1.2619 V 0.6 0.4 0.2 0.0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Input Current [A] Vofshalf Vref Vout_Sense Iin_Sense Iout_Sense Vrefpre Vprereg Masterthesis Measurements jendrik.zorn001@stud.fh-dortmund.de Slide 4
Voltage [V] Load Regulation - LDO Vref=600mV,Irefset=1110,Vin=2V,Rext=600Ω 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Load Current [A] Vofshalf Vref Vout_Sense Iin_Sense Iout_Sense Vrefpre Vprereg Masterthesis Measurements jendrik.zorn001@stud.fh-dortmund.de Slide 5
Voltage [V] Load Regulation - LDO Vref=600mV,Irefset=1110,Vin=2V,Rext=600Ω 1.229 1.228 1.227 1.226 1.225 1.224 1.223 1.222 min max Vofshalf -0.003265 0.401343 0.404608 Vref -0.00536 0.598823 0.604183 Vout_Sense -0.00718 1.22144 1.22862 Iin_Sense -0.00564 1.99403 1.99967 Iout_Sense 0.003716 0.56314 0.566856 Vrefpre 3.577E-05 6.44E-06 4.22E-05 Vprereg 0.0072 1.12726 1.13446 1.221 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Load Current [A] Vout_Sense Masterthesis Measurements jendrik.zorn001@stud.fh-dortmund.de Slide 6
Voltage [V] Load Regulation - SLDO Vofshalf=400mV,Vref=600mV,Iin=1.65A,Irefset=1110,Rext=600Ω 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Load Current [A] Vofshalf Vref Vout_Sense Iin_Sense Iout_Sense Vrefpre Vprereg Masterthesis Measurements jendrik.zorn001@stud.fh-dortmund.de Slide 7
Voltage [V] Load Regulation - SLDO Vofshalf=400mV,Vref=600mV,Iin=1.65A,Irefset=1110,Rext=600Ω 1.218 1.218 1.217 1.217 1.216 1.216 1.215 1.215 min max Vofshalf -0.002157 0.398517 0.400674 Vref -0.005287 0.595359 0.600646 Vout_Sense -0.00337 1.21432 1.21769 Iin_Sense 0.00031 1.98867 1.98898 Iout_Sense -0.007183 0.577626 0.584809 Vrefpre -3.16E-03 2.07E-03 5.23E-03 Vprereg -0.00942 1.15251 1.16193 1.214 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Load Current [A] Vout_Sense Masterthesis Measurements jendrik.zorn001@stud.fh-dortmund.de Slide 8
Voltage [V] Load Regulation - SLDO Vofshalf=650mV,Vref=600mV,Iin=1A,Irefset=1110,Rext=600Ω 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Load Current [A] Vofshalf Vref Vout_Sense Iin_Sense Iout_Sense Vrefpre Vprereg Masterthesis Measurements jendrik.zorn001@stud.fh-dortmund.de Slide 9
Voltage [V] Load Regulation - SLDO Vofshalf=650mV,Vref=600mV,Iin=1A,Irefset=1110,Rext=600Ω 1.223 1.222 1.221 min max Vofshalf 0.002935 0.64932 0.652255 Vref 0.001822 0.597399 0.599221 Vout_Sense 0.00495 1.21737 1.22232 Iin_Sense 0.00049 1.99328 1.99377 Iout_Sense -0.009731 0.567646 0.577377 Vrefpre -2.93E-03 9.98E-05 3.03E-03 Vprereg -0.01495 1.1359 1.15085 1.220 1.219 1.218 1.217 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Load Current [A] Vout_Sense Masterthesis Measurements jendrik.zorn001@stud.fh-dortmund.de Slide 10
Sweep: Vofs - SLDO Vofshalf=375mV-600mV,Vref=600mV,Irefset=1110,Rext=600Ω 2 1.8 1.6 1.4 1.2 1 0.8 0.6 0.4 0.2 0 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 Vin (Vofs=375mV) Vin (Vofs=400mV) Vin (Vofs=425mV) Vin (Vofs=450mV) Vin (Vofs=475mV) Vin (Vofs=500mV) Vin (Vofs=525mV) Vin (Vofs=550mV) Vin (Vofs=575mV) Vin (Vofs=600mV) Asymptote 1 Asymptote 2 Masterthesis Measurements jendrik.zorn001@stud.fh-dortmund.de Slide 11
Offset [V] Slope [Ω] Sweep: Vofs - SLDO Vofshalf=375mV-600mV,Vref=600mV,Irefset=1110,Rext=600Ω 1.2 1.1 1 0.9 Vofs Slope Offset 750 0.7499 0.5634 800 0.755 0.6855 850 0.757 0.7761 900 0.747 0.8356 950 0.7404 0.8928 1000 0.7374 0.9442 1050 0.7275 1.0054 1100 0.7292 1.0518 1150 0.7211 1.1055 1200 0.7141 1.164 0.8 0.7 0.6 0.5 750 800 850 900 950 1000 1050 1100 1150 1200 Vofs [V] Slope Offset Masterthesis Measurements jendrik.zorn001@stud.fh-dortmund.de Slide 12
Voltage [V] Sweep: Rext - SLDO Vofshalf=500mV,Vref=600mV,Irefset=1110,Rext=450Ω-600Ω 2 1.8 1.6 1.4 1.2 1 0.8 0.6 0.4 0.2 0 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 Input Current [A] Vin (Rext=450Ω) Vin (Rext=500Ω) Vin (Rext=550Ω) Vin (Rext=600Ω) Vin (Rext=650Ω) Vin (Rext=700Ω) Vin (Rext=750Ω) Vin (Rext=800Ω) Vin (Rext=850Ω) Vin (Rext=900Ω) Asymptote 1 Asymptote 2 Masterthesis Measurements jendrik.zorn001@stud.fh-dortmund.de Slide 13
Offset [V] / Slope [Ω] Sweep: Rext - SLDO Vofshalf=500mV,Vref=600mV,Irefset=1110,Rext=450Ω-600Ω 1.1 1 0.9 0.8 0.7 0.6 0.5 450 500 550 600 650 700 750 800 850 900 Rext [Ω] Rext Slope Offset 450 0.5711 0.9352 500 0.6234 0.9433 550 0.6811 0.9459 600 0.7334 0.9516 650 0.7925 0.9485 700 0.8473 0.9504 750 0.8965 0.9568 800 0.9508 0.957 850 1.0105 0.9547 900 1.0643 0.9558 Slope Offset Masterthesis Measurements jendrik.zorn001@stud.fh-dortmund.de Slide 14
Load Transient - LDO Vref=600mV,Irefset=1110,Rext=600Ω,Vwave=1.99Vpp, Iload=0-500mA,Vin=2V Masterthesis Measurements jendrik.zorn001@stud.fh-dortmund.de Slide 15
Load Transient - LDO Vref=600mV,Irefset=1110,Rext=600Ω,Vwave=1.99Vpp, Iload=0-500mA,Vin=1.4V Masterthesis Measurements jendrik.zorn001@stud.fh-dortmund.de Slide 16
Load Transient - SLDO Vofshalf=400mV,Vref=600mV,Irefset=1110,Rext=600Ω,Vwave=1.96Vpp, Iload=0-500mA,Iin=1A Masterthesis Measurements jendrik.zorn001@stud.fh-dortmund.de Slide 17
Load Transient - SLDO Vofshalf=400mV,Vref=600mV,Irefset=1110,Rext=600Ω,Vwave=1.96Vpp, Iload=0-500mA,Iin=1.7A Masterthesis Measurements jendrik.zorn001@stud.fh-dortmund.de Slide 18
Load Transient - SLDO Vofshalf=650mV,Vref=600mV,Irefset=1110,Rext=600Ω,Vwave=1.96Vpp, Iload=0-500mA,Iin=1A Masterthesis Measurements jendrik.zorn001@stud.fh-dortmund.de Slide 19
Load Transient - LDO Vref=600mV,Irefset=1110,Rext=600Ω,Vwave=1.99Vpp, Iload=450-950mA,Vin=2V Masterthesis Measurements jendrik.zorn001@stud.fh-dortmund.de Slide 20
Load Transient - LDO Vref=600mV,Irefset=1110,Rext=600Ω,Vwave=1.99Vpp, Iload=450-950mA,Vin=1.4V Masterthesis Measurements jendrik.zorn001@stud.fh-dortmund.de Slide 21
Load Transient - SLDO Vofshalf=400mV,Vref=600mV,Irefset=1110,Rext=600Ω,Vwave=1.98Vpp, Iload=450-950mA,Iin=1A Masterthesis Measurements jendrik.zorn001@stud.fh-dortmund.de Slide 22
Load Transient - SLDO Vofshalf=400mV,Vref=600mV,Irefset=1110,Rext=600Ω,Vwave=1.98Vpp, Iload=450-950mA,Iin=1.7A Masterthesis Measurements jendrik.zorn001@stud.fh-dortmund.de Slide 23
Load Transient - SLDO Vofshalf=650mV,Vref=600mV,Irefset=1110,Rext=600Ω,Vwave=1.98Vpp, Iload=450-950mA,Iin=1A Masterthesis Measurements jendrik.zorn001@stud.fh-dortmund.de Slide 24
Startup behaviour - LDO Vref=600mV,Irefset=1110,Rext=600Ω,Vin=0V-2V,trise=110ms Masterthesis Measurements jendrik.zorn001@stud.fh-dortmund.de Slide 25
Startup behaviour LDO Vref=600mV,Irefset=1110,Rext=600Ω,Vin=0V-1.4V,trise=110ms Masterthesis Measurements jendrik.zorn001@stud.fh-dortmund.de Slide 26
Startup behaviour - SLDO Vofshalf=400mV,Vref=600mV,Irefset=1110,Rext=600Ω, Iin=0A-1A,trise=110ms Masterthesis Measurements jendrik.zorn001@stud.fh-dortmund.de Slide 27
Startup behaviour - SLDO Vofshalf=400mV,Vref=600mV,Irefset=1110,Rext=600Ω, Iin=0A-1A,trise=200ms,delay=500ms Masterthesis Measurements jendrik.zorn001@stud.fh-dortmund.de Slide 28
Startup behaviour - SLDO Vofshalf=650mV,Vref=600mV,Irefset=1110,Rext=600Ω, Iin=0A-1A,trise=110ms,delay=20ms Masterthesis Measurements jendrik.zorn001@stud.fh-dortmund.de Slide 29
Startup behaviour - SLDO Vofshalf=650mV,Vref=600mV,Irefset=1110,Rext=600Ω, Iin=0A-1A,trise=200ms,delay=500ms Masterthesis Measurements jendrik.zorn001@stud.fh-dortmund.de Slide 30
Undershunt Current Protection - SLDO Vofshalf=400mV,Vref=600mV,Irefset=1110,Rext=600Ω, Iin=1A,[MA1]*10=I(Vwave) Iload=755mA+I(Vwave) Iload=760mA+I(Vwave) Iload=770mA+I(Vwave) Iload=780mA+I(Vwave) Iload=785mA+I(Vwave) Iload=787mA+I(Vwave) Masterthesis Measurements jendrik.zorn001@stud.fh-dortmund.de Slide 31
Undershunt Current Protection - SLDO Vofshalf=400mV,Vref=600mV,Irefset=1110,Rext=600Ω, Iin=1.4A,[MA1]*10=I(Vwave) Iload=880mA+I(Vwave) Iload=900mA+I(Vwave) Iload=920mA+I(Vwave) Iload=940mA+I(Vwave) Iload=960mA+I(Vwave) Iload=966mA+I(Vwave) Masterthesis Measurements jendrik.zorn001@stud.fh-dortmund.de Slide 32
Undershunt Current Protection - SLDO Vofshalf=650mV,Vref=600mV,Irefset=1110,Rext=600Ω, Iin=1A,[MA1]*10=I(Vwave) Iload=745mA+I(Vwave) Iload=750mA+I(Vwave) Iload=770mA+I(Vwave) Iload=785mA+I(Vwave) Iload=788mA+I(Vwave) Iload=790mA+I(Vwave) Masterthesis Measurements jendrik.zorn001@stud.fh-dortmund.de Slide 33