 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| MCC Micro Commercial Components TM omponents 20736 Marilla Street Chatsworth !"# $ % !"# TL431AU Features * * * * * * Programmable Output Voltage 36V Sink Current Capability of 0.1mA to 100 mA Temperature Compensated for operation over full rated operating temperature range Low output noise voltage and Fast turn on response The Reference Input Voltage tolerance is 1% Marking Code: 431 Programmable Precision Regulator SOT-23 A D 1 2 3 Maximum Ratings Parameter Cathode Voltage Cathode Current Range Reference Input Current Range Power Dissipation at 25 Thermal Resistance Junction to Ambient Junction Temperature Operating Temperature Storage Temperature Range Symbol VKA IK IREF PD RJA TJ Tg TSTG Value 37 -100~150 0.05~10 0.2 300 0--150 0---70 -55---+150 Unit V mA mA W /W F C B E 1. (A) ANODE 2. (R) REFERENCE 3. (K) CATHODE Recommended Operating Conditions Parameter Cathode Voltage Cathode Current Range Parameter Reference Input Voltage Deviation of reference input voltage Ratio of Change in Reference Input Voltage to the Change in Cathode Voltage Reference Input Current Deviation of Reference Input Current Over Full Temperature Range Minimum Cathode Current for Regulation Off-State Cathode Current Dynamic Impedance Sym Vref Vref(dev) Min 2.475V G H J Sym VKA IK Typ 2.500V 3.0mV Min VREF 1.0 Max 2.525V 17mV Max 36 100 Unit V mA K DIMENSIONS INCHES MIN .110 .083 .047 .035 .070 .018 .0005 .035 .003 .015 MM MIN 2.80 2.10 1.20 .89 1.78 .45 .013 .89 .085 .37 Electrical Characteristics @ 25C Unless Otherwise Specified Test conditions DIM A B C D E F G H J K Tmin Ta Tmax -1.4 -2.7 -2.0 4.0A VKA=10V Vref Vref/ VKA -1.0 1.8A VKA=36V 10V IKA=10mA, R2= R1=10K IKA=10mA, R2= R1=10K TA=full Temperature MAX .120 .098 .055 .041 .081 .024 .0039 .044 .007 .020 MAX 3.04 2.64 1.40 1.03 2.05 .60 .100 1.12 .180 .51 NOTE Iref Iref/ T Suggested Solder Pad Layout .031 .800 .035 .900 .079 2.000 inches mm 0.4A 1.2A IKA(min) IKA(off) ZKA 0. 5mA 0.26A 0.22 1.0mA 1.0A 0.5 VKA=36V, VREF=0V IKA=10 to 100mA, f 1.0KHz .037 .950 .037 .950 www.mccsemi.com Revision: 2 2003/07/28 MCC TM Micro Commercial Components TL431AU Input VKA Input R1 Vref Iref IK VKA Input VKA IK Ioff R2 Vref V KA +V ref 1 ) R1 ) I S R1 ref R2 Figure 1. Test Circuit for VKA = Vref Figure 2. Test Circuit for VKA > Vref Figure 3. Test Circuit for Ioff 150 IK , CATHODE CURRENT (mA) 100 50 0 -50 -100 -2.0 Input IK , CATHODE CURRENT ( A) VKA = Vref TA = 25C IK 800 VKA 600 Input 400 200 0 VKA = Vref TA = 25C VKA IK IMin -1.0 0 1.0 2.0 3.0 -200 -1.0 0 1.0 VKA, CATHODE VOLTAGE (V) 2.0 3.0 VKA, CATHODE VOLTAGE (V) Figure 4. Cathode Current versus Cathode Voltage Figure 5. Cathode Current versus Cathode Voltage Vref , REFERENCE INPUT VOLTAGE (mV) 2580 2560 2540 2520 2500 2480 2460 2440 2420 Vref Vref Max = 2525mV Iref , REFERENCE INPUT CURRENT ( A) 2600 Input VKA IK VKA = Vref IK = 10 mA 3.0 2.5 2.0 1.5 1.0 0.5 0 -55 Input IK = 10 mA IK VKA Vref Typ = 2500mV Vref Min = 2475mV 10k Iref 2400 -55 -25 0 25 50 75 100 125 -25 0 25 50 75 100 125 TA, AMBIENT TEMPERATURE (C) TA, AMBIENT TEMPERATURE (C) Figure 6. Reference Input Voltage versus Ambient Temperature Figure 7. Reference Input Current versus Ambient Temperature www.mccsemi.com Revision: 2 2003/07/28 MCC Micro Commercial Components Vref , REFERENCE INPUT VOLTAGE (mV) IK = 10 mA TA = 25C Ioff , OFF-STATE CATHODE CURRENT (nA) 0 1.0 k 100 10 1.0 0.1 0.01 -55 VKA = 36 V Vref = 0 V Ioff -8.0 TM -16 Input R1 IK Vref VKA Input VKA -24 R2 -32 0 10 20 30 40 -25 0 25 50 75 100 125 VKA, CATHODE VOLTAGE (V) TA, AMBIENT TEMPERATURE (5C) Figure 8. Change in Reference Input Voltage versus Cathode Voltage Figure 9. Off-State Cathode Current versus Ambient Temperature 100 |ZKA|, DYNAMIC IMPEDANCE ( ) |ZKA|, DYNAMIC IMPEDANCE ( ) 1.0 k 50 + Output IK Gnd TA = 25_C IK = 1.0 mA to 100 mA 0.320 0.300 0.280 0.260 0.240 0.220 0.200 -55 -25 0 25 50 75 100 125 VKA = Vref IK = 1.0 mA to 100 mA f 1.0 kHz Output 1.0 k IK 50 + Gnd 10 1.0 0.1 1.0 k 10 k 100 k f, FREQUENCY (MHz) 1.0 M 10 M TA, AMBIENT TEMPERATURE (_C) Figure 10. Dynamic Impedance versus Frequency Figure 11. Dynamic Impedance versus Ambient Temperature A VOL, OPEN LOOP VOLTAGE GAIN (dB) 60 50 40 30 20 10 0 -10 1.0 k 10 k 100 k f, FREQUENCY (MHz) 1.0 M IK = 10 mA TA = 25_C 9.0 F 15 k 8.25 k IK 230 Output NOISE VOLTAGE (nV/ Hz) 80 60 VKA = Vref IK = 10 mA TA = 25C IK Gnd 40 Input 20 Output 10 M 0 10 100 1.0 k f, FREQUENCY (Hz) 10 k 100 k Figure 12. Open-Loop Voltage Gain versus Frequency Figure 13. Spectral Noise Density www.mccsemi.com Revision: 2 2003/07/28 |
Price & Availability of TL431AU
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |