TL431BU

Micro Commercial Components MCC TM Features • • • • • • • • •
  omponents 20736 Marilla Street Chatsworth    !"# $ %    !"# TL431BU Lead Free Finish/RoHS Compliant ("P" Suffix designates RoHS Compliant. See ordering information) Epoxy meets UL 94 V-0 flammability rating Moisure Sensitivity Level 1 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 0.5% Marking Code: 431 Programmable Precision Regulator SOT-23 A D 1 Maximum Ratings Parameter Cathode Voltage Cathode Current Range Reference Input Current Range Power Dissipation at 25 Thermal Resistance Junction to Ambient Operating Temperature Storage Temperature Range Symbol VKA IK IREF PD RθJA Topr TSTG Value 37 -100~150 0.05~10 0.2 300 0---70 -55---+150 Unit V mA mA W /W G F 2 C 3 B E 1. (A) ANODE 2. (R) REFERENCE 3. (K) CATHODE H J Recommended Operating Conditions Parameter Cathode Voltage Cathode Current Range K Electrical Characteristics @ 25°C Unless Otherwise Specified 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 Sym Min 2.487V Sym VKA IK Min VREF 1.0 Max 36 100 Unit V mA DIMENSIONS INCHES MIN .110 .083 .047 .035 .070 .018 .0005 .035 .003 .015 MM MAX .120 .098 .055 .041 .081 .024 .0039 .044 .007 .020 MIN 2.80 2.10 1.20 .89 1.78 .45 .013 .89 .085 .37 MAX 3.04 2.64 1.40 1.03 2.05 .60 .100 1.12 .180 .51 NOTE Typ 2.500V Max 2.512V Test conditions Vref VKA=VREF, IKA=10mA VKA=VREF, IKA=10mA Tmin Ta Tmax Vref(dev) 3.0mV 17mV -1.4 -2.7 VKA=10V Vref DIM A B C D E F G H J K Vref/ VKA -1.0 -2.0 VKA=36V 10V Suggested Solder Pad Layout .031 .800 .035 .900 .079 2.000 inches mm Iref 1.8µA 4.0µA IKA=10mA, R2= R1=10K Iref/ T 0.4µA 1.2µA IKA=10mA, R2= R1=10K TA=full Temperature IKA(min) 0. 5mA 1.0mA IKA(off) 0.26µA 1.0µA VKA=36V, VREF=0V .037 .950 .037 .950 Dynamic Impedance ZKA 0.22 0.5 IKA=10 to 100mA, f 1.0KHz Revision: A www.mccsemi.com 1 of 4 2011/01/01 MCC Micro Commercial Components TM TL431BU Input VKA Input R1 Vref Iref IK VKA Input IK Ioff VKA 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 150 800 IK , CATHODE CURRENT (mA) IK , CATHODE CURRENT ( µA) 100 50 0 -50 -100 -2.0 VKA = Vref TA = 25°C Input IK VKA 600 Input 400 200 0 VKA = Vref TA = 25°C 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 Input Vref Vref Max = 2525mV Iref , REFERENCE INPUT CURRENT ( µA) 2600 VKA IK VKA = Vref IK = 10 mA 3.0 2.5 2.0 1.5 Vref Typ = 2500mV IK = 10 mA 1.0 0.5 0 -55 -25 0 25 50 75 100 125 Input 10k Iref IK VKA 2440 2420 2400 -55 -25 0 25 50 Vref Min = 2475mV 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 Revision: A www.mccsemi.com 2 of 4 2011/01/01 MCC Micro Commercial Components ∆ Vref , REFERENCE INPUT VOLTAGE (mV) TM IK = 10 mA TA = 25°C -8.0 Ioff , OFF-STATE CATHODE CURRENT (nA) 0 1.0 k 100 10 1.0 0.1 0.01 -55 -16 Input R1 IK Vref VKA Input VKA = 36 V Vref = 0 V Ioff 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 (Ω ) 50 10 Output IK + Gnd |ZKA|, DYNAMIC IMPEDANCE (Ω ) 1.0 k 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 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 10 M NOISE VOLTAGE (nV/ √Hz) 80 9.0 µF 15 k 8.25 k IK Output 230 Gnd 60 40 IK = 10 mA TA = 25_C Input 20 VKA = Vref IK = 10 mA TA = 25°C IK Output 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 Revision: A www.mccsemi.com 3 of 4 2011/01/01 MCC Micro Commercial Components TM Ordering Information : Device Part Number-TP Packing Tape&Reel;3Kpcs/Reel ***IMPORTANT NOTICE*** Micro Commercial Components Corp. reserves the right to make changes without further notice to any product herein to make corrections, modifications , enhancements , improvements , or other changes . Micro Commercial Components Corp . does not assume any liability arising out of the application or use of any product described herein; neither does it convey any license under its patent rights ,nor the rights of others . The user of products in such applications shall assume all risks of such use and will agree to hold Micro Commercial Components Corp . and all the companies whose products are represented on our website, harmless against all damages. ***LIFE SUPPORT*** MCC's products are not authorized for use as critical components in life support devices or systems without the express written approval of Micro Commercial Components Corporation. ***CUSTOMER AWARENESS*** Counterfeiting of semiconductor parts is a growing problem in the industry. Micro Commercial Components (MCC) is taking strong measures to protect ourselves and our customers from the proliferation of counterfeit parts. MCC strongly encourages customers to purchase MCC parts either directly from MCC or from Authorized MCC Distributors who are listed by country on our web page cited below. Products customers buy either from MCC directly or from Authorized MCC Distributors are genuine parts, have full traceability, meet MCC's quality standards for handling and storage. MCC will not provide any warranty coverage or other assistance for parts bought from Unauthorized Sources. MCC is committed to combat this global problem and encourage our customers to do their part in stopping this practice by buying direct or from authorized distributors. Revision: A www.mccsemi.com 4 of 4 2011/01/01 3