TL431-Q1 ADJUSTABLE PRECISION SHUNT REGULATOR SGLS302D - MARCH 2005 - REVISED MARCH 2013 D Qualified for Automotive Applications D Operation From -40C to 125C D Reference Voltage Tolerance at 25C D D D D D DBV (SOT-23-5) PACKAGE (TOP VIEW) - 1% . . . A Grade - 0.5% . . . B Grade Typical Temperature Drift - 14 mV (Q Temp) Low Output Noise 0.2- Typical Output Impedance Sink-Current Capability = 1 mA to 100 mA Adjustable Output Voltage = Vref to 36 V NC 1 NC 2 CATHODE 3 5 ANODE 4 REF NC - No internal connection Pin 2 is connected internally to ANODE (die substrate) and should be floating or connected to ANODE. TL431-Q1 DBZ (SOT-23-3) PACKAGE (TOP VIEW) CATHODE 1 description 3 REF ANODE 2 The TL431 is a three-terminal adjustable shunt regulator with specified thermal stability over applicable automotive temperature ranges. The output voltage can be set to any value between Vref (approximately 2.5 V) and 36 V, with two external resistors (see Figure 17). This device has a typical output impedance of 0.2 . Active output circuitry provides a sharp turn-on characteristic, making this device an excellent replacement for Zener diodes in many applications, such as onboard regulation, adjustable power supplies, and switching power supplies. Ordering Information{ PACKAGE TA -40C 40 C to 125 125C C ORDERABLE PART NUMBER TOP-SIDE MARKING TACQ SOT-23-5 (DBV) Reel of 3000 TL431AQDBVRQ1 SOT-23-5 (DBV) Reel of 3000 TL431QDBVRQ1 T3QU SOT-23-3 (DBZ) Reel of 3000 TL431AQDBZRQ1 TAQU For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI web site at http://www.ti.com. Package drawings, thermal data, and symbolization are available at http://www.ti.com/packaging. symbol REF ANODE functional block diagram CATHODE CATHODE + REF _ Vref ANODE Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PowerFLEX is a trademark of Texas Instruments. Copyright (c) 2008-2013, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 1 TL431-Q1 ADJUSTABLE PRECISION SHUNT REGULATOR SGLS302D - MARCH 2005 - REVISED MARCH 2013 equivalent schematic{ CATHODE 800 800 20 pF REF 150 3.28 k 2.4 k 4 k 10 k 20 pF 7.2 k 1 k 800 ANODE All component values are nominal. absolute maximum ratings over operating free-air temperature range (unless otherwise noted) Cathode voltage, VKA (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 V Continuous cathode current range, IKA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -100 mA to 150 mA Reference input current range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -50 A to 10 mA Operating virtual junction temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150C Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65C to 150C ESD protection level (see Note 2): HBM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (H2) 2.5 kV CDM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (C4) 1 kV MM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (M2) 200 V Stresses beyond those listed under "absolute maximum ratings" 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 under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTE 1: Voltage values are with respect to the ANODE terminal, unless otherwise noted. NOTE 2: ESD Protection Level per AEC Q100 Classification package thermal data (see Note3) BOARD JC JA SOT-23-5 (DBV) PACKAGE High K, JESD 51-7 131C/W 206C/W SOT-23-3 (DBZ) High K, JESD 51-7 76C/W 206C/W NOTE 3: Maximum power dissipation is a function of TJ(max), JA, and TA. The maximum allowable power dissipation at any allowable ambient temperature is PD = (TJ(max) - TA)/JA. Operating at the absolute maximum TJ of 150C can affect reliability. recommended operating conditions 2 MIN MAX VKA Cathode voltage Vref 36 V IKA Cathode current 1 100 mA TA Operating free-air temperature range -40 125 C POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 UNIT TL431-Q1 ADJUSTABLE PRECISION SHUNT REGULATOR SGLS302D - MARCH 2005 - REVISED MARCH 2013 electrical characteristics over recommended operating conditions, TA = 25C (unless otherwise noted) PARAMETER TEST CIRCUIT TEST CONDITIONS TL431Q UNIT MIN TYP MAX 2440 2495 2550 mV 14 34 mV -1.4 -2.7 -1 -2 mV V Vref Reference voltage 2 VKA = Vref, IKA = 10 mA VI(dev) Deviation of reference voltage over full temperature range (see Figure 1) 2 VKA = Vref, IKA = 10 mA, TA = -40C to 125C DV ref DV KA Ratio of change in reference voltage to the change in cathode voltage 3 IKA = 10 mA Iref Reference current 3 IKA = 10 mA, R1 = 10 k, R2 = 2 4 A II(dev) Deviation of reference current over full temperature range (see Figure 1) 3 IKA = 10 mA, R1 = 10 k, R2 = , TA = -40C to 125C 0.8 2.5 A Imin Minimum cathode current for regulation 2 VKA = Vref 0.4 1 mA Ioff Off-state cathode current 4 VKA = 36 V, Vref = 0 0.1 1 A 2 IKA = 1 mA to 100 mA, VKA = Vref, f 1 kHz 0.2 0.5 |zKA| Dynamic impedance (see Figure 1) VKA = 10 V - Vref VKA = 36 V - 10 V electrical characteristics over recommended operating conditions, TA = 25C (unless otherwise noted) PARAMETER TEST CIRCUIT TEST CONDITIONS TL431AQ UNIT MIN TYP MAX 2470 2495 2520 mV 14 34 mV -1.4 -2.7 -1 -2 mV V Vref Reference voltage 2 VKA = Vref, IKA = 10 mA VI(dev) Deviation of reference voltage over full temperature range (see Figure 1) 2 VKA = Vref, IKA = 10 mA, TA = -40C to 125C DV ref DV KA Ratio of change in reference voltage to the change in cathode voltage 3 IKA = 10 mA Iref Reference current 3 IKA = 10 mA, R1 = 10 k, R2 = 2 4 A II(dev) Deviation of reference current over full temperature range (see Figure 1) 3 IKA = 10 mA, R1 = 10 k, R2 = , TA = -40C to 125C 0.8 2.5 A Imin Minimum cathode current for regulation 2 VKA = Vref 0.4 0.7 mA Ioff Off-state cathode current 4 VKA = 36 V, Vref = 0 0.1 0.5 A 2 IKA = 1 mA to 100 mA, VKA = Vref, f 1 kHz 0.2 0.5 |zKA| Dynamic impedance (see Figure 1) POST OFFICE BOX 655303 VKA = 10 V - Vref VKA = 36 V - 10 V * DALLAS, TEXAS 75265 3 TL431-Q1 ADJUSTABLE PRECISION SHUNT REGULATOR SGLS302D - MARCH 2005 - REVISED MARCH 2013 electrical characteristics over recommended operating conditions, TA = 25C (unless otherwise noted) TEST CIRCUIT PARAMETER TEST CONDITIONS TL431BQ UNIT MIN TYP MAX 2483 2495 2507 mV 14 34 mV -1.4 -2.7 -1 -2 mV V Vref Reference voltage 2 VKA = Vref, IKA = 10 mA VI(dev) Deviation of reference voltage over full temperature range (see Figure 1) 2 VKA = Vref, IKA = 10 mA, TA = -40C to 125C DV ref DV KA Ratio of change in reference voltage to the change in cathode voltage 3 IKA = 10 mA Iref Reference current 3 IKA = 10 mA, R1 = 10 k, R2 = 2 4 A II(dev) Deviation of reference current over full temperature range (see Figure 1) 3 IKA = 10 mA, R1 = 10 k, R2 = , TA = -40C to 125C 0.8 2.5 A Imin Minimum cathode current for regulation 2 VKA = Vref 0.4 0.7 mA Ioff Off-state cathode current 4 VKA = 36 V, Vref = 0 0.1 0.5 A 1 IKA = 1 mA to 100 mA, VKA = Vref, f 1 kHz 0.2 0.5 |zKA| Dynamic impedance (see Figure 1) VKA = 10 V - Vref VKA = 36 V - 10 V The deviation parameters, Vref(dev) and Iref(dev), are defined as the differences between the maximum and minimum values obtained over the recommended temperature range. The average full-range temperature coefficient of the reference voltage, Vref, is defined as: a ppm + V ref V I(dev) V ref at 25C Maximum Vref 10 6 VI(dev) Minimum Vref DT A C TA where: TA is the recommended operating free-air temperature range of the device. a Vref can be positive or negative, depending on whether minimum Vref or maximum Vref, respectively, occurs at the lower temperature. Example: maximum Vref = 2496 mV at 30C, minimum Vref = 2492 mV at 0C, Vref = 2495 mV at 25C, TA = 70C for TL431 a + V ref 4 mV 2495 mV 10 6 70C [ 23 ppm C Because minimum Vref occurs at the lower temperature, the coefficient is positive. Calculating Dynamic Impedance The dynamic impedance is defined as: |z KA| + DVKA DI KA When the device is operating with two external resistors (see Figure 3), the total dynamic impedance of the circuit is given by: |z| + DV [ |z KA| 1 ) R1 DI R2 Figure 1. Calculating Deviation Parameters and Dynamic Impedance 4 POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 TL431-Q1 ADJUSTABLE PRECISION SHUNT REGULATOR SGLS302D - MARCH 2005 - REVISED MARCH 2013 PARAMETER MEASUREMENT INFORMATION Input VKA IKA Vref Figure 2. Test Circuit for VKA = Vref Input VKA IKA R1 Iref R2 Vref V KA + V ref 1 ) R1 ) I ref R2 R1 Figure 3. Test Circuit for VKA > Vref Input VKA Ioff Figure 4. Test Circuit for Ioff POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 5 TL431-Q1 ADJUSTABLE PRECISION SHUNT REGULATOR SGLS302D - MARCH 2005 - REVISED MARCH 2013 TYPICAL CHARACTERISTICS Table 1. Graphs FIGURE Reference voltage vs Free-air temperature 5 Reference current vs Free-air temperature 6 Cathode current vs Cathode voltage 7, 8 OFF-state cathode current vs Free-air temperature 9 Ratio of delta reference voltage to delta cathode voltage vs Free-air temperature 10 Equivalent input noise voltage vs Frequency 11 Equivalent input noise voltage over a 10-s period 12 Small-signal voltage amplification vs Frequency 13 Reference impedance vs Frequency 14 Pulse response 15 Stability boundary conditions 16 Table 2. Application Circuits FIGURE 6 Shunt regulator 17 Single-supply comparator with temperature-compensated threshold 18 Precision high-current series regulator 19 Output control of a three-terminal fixed regulator 20 High-current shunt regulator 21 Crowbar circuit 22 Precision 5-V 1.5-A regulator 23 Efficient 5-V precision regulator 24 PWM converter with reference 25 Voltage monitor 26 Delay timer 27 Precision current limiter 28 Precision constant-current sink 29 POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 TL431-Q1 ADJUSTABLE PRECISION SHUNT REGULATOR SGLS302D - MARCH 2005 - REVISED MARCH 2013 TYPICAL CHARACTERISTICS{ V ref - Reference Voltage - mV 5 VKA = Vref IKA = 10 mA Vref = 2550 mV 2560 I ref - Reference Current - A 2600 2580 REFERENCE CURRENT vs FREE-AIR TEMPERATURE REFERENCE VOLTAGE vs FREE-AIR TEMPERATURE 2540 2520 Vref = 2495 2500 mV 2480 2460 Vref = 2440 mV 2440 4 R1 = 10 k R2 = IKA = 10 mA 3 2 1 2420 2400 -75 -50 -25 0 25 50 100 75 0 -75 125 -50 Data is for devices having the indicated value of Vref at IKA = 10 mA, TA = 25C. Figure 5 50 75 100 125 CATHODE CURRENT vs CATHODE VOLTAGE 800 VKA = Vref TA = 25C VKA = Vref TA = 25C 600 100 I KA - Cathode Current - A I KA - Cathode Current - mA 125 25 Figure 6 CATHODE CURRENT vs CATHODE VOLTAGE 150 0 TA - Free-Air Temperature - C TA - Free-Air Temperature - C -25 75 50 25 0 -25 -50 Imin 400 200 0 -75 -100 -2 -1 0 2 1 3 -200 -1 VKA - Cathode Voltage - V Figure 7 0 1 2 3 VKA - Cathode Voltage - V Figure 8 Data at high and low temperatures is applicable only within the recommended operating free-air temperature ranges of the various devices. POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 7 TL431-Q1 ADJUSTABLE PRECISION SHUNT REGULATOR SGLS302D - MARCH 2005 - REVISED MARCH 2013 TYPICAL CHARACTERISTICS{ RATIO OF DELTA REFERENCE VOLTAGE TO DELTA CATHODE VOLTAGE vs FREE-AIR TEMPERATURE OFF-STATE CATHODE CURRENT vs FREE-AIR TEMPERATURE - 0.85 VKA = 36 V Vref = 0 VKA = 3 V to 36 V - 0.95 2 V ref / V KA - mV/V I off - Off-State Cathode Current - A 2.5 1.5 1 0.5 0 -75 -1.05 -1.15 -1.25 -1.35 -50 -25 0 25 50 75 100 -1.45 -75 125 -50 TA - Free-Air Temperature - C -25 25 50 75 100 125 TA - Free-Air Temperature - C Figure 9 Figure 10 EQUIVALENT INPUT NOISE VOLTAGE vs FREQUENCY 260 Vn - Equivalent Input Noise Voltage - nV/ Hz 0 IO = 10 mA TA = 25C 240 220 200 180 160 140 120 100 10 100 1k 10 k 100 k f - Frequency - Hz Figure 11 8 Data at high and low temperatures is applicable only within the recommended operating free-air temperature ranges of the various devices. POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 TL431-Q1 ADJUSTABLE PRECISION SHUNT REGULATOR SGLS302D - MARCH 2005 - REVISED MARCH 2013 TYPICAL CHARACTERISTICS EQUIVALENT INPUT NOISE VOLTAGE OVER A 10-S PERIOD V n - Equivalent Input Noise Voltage - V 6 5 4 3 2 1 0 -1 -2 -3 f = 0.1 to 10 Hz IKA = 10 mA TA = 25C -4 -5 -6 0 1 2 3 4 5 6 7 8 9 10 t - Time - s 19.1 V 1 k 500 F 910 2000 F VCC TL431 (DUT) 820 + - 16 160 k VCC 1 F TLE2027 AV = 10 V/mV + 16 k 16 k 1 F 0.1 F TLE2027 - 22 F To Oscilloscope 33 k AV = 2 V/V 33 k VEE VEE Figure 12. Test Circuit for Equivalent Input Noise Voltage POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 9 TL431-Q1 ADJUSTABLE PRECISION SHUNT REGULATOR SGLS302D - MARCH 2005 - REVISED MARCH 2013 TYPICAL CHARACTERISTICS A V - Small-Signal Voltage Amplification - dB 60 SMALL-SIGNAL VOLTAGE AMPLIFICATION vs FREQUENCY IKA = 10 mA TA = 25C IKA = 10 mA TA = 25C 50 Output 15 k IKA 232 40 9 F + 30 - 8.25 k 20 GND TEST CIRCUIT FOR VOLTAGE AMPLIFICATION 10 0 1k 10 k 100 k 1M 10 M f - Frequency - Hz Figure 13 REFERENCE IMPEDANCE vs FREQUENCY |z KA| - Reference Impedance - 100 IKA = 10 mA TA = 25C 1 k 10 IKA 50 - + GND 1 TEST CIRCUIT FOR REFERENCE IMPEDANCE 0.1 1k 10 k 100 k 1M 10 M f - Frequency - Hz Figure 14 10 Output POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 TL431-Q1 ADJUSTABLE PRECISION SHUNT REGULATOR SGLS302D - MARCH 2005 - REVISED MARCH 2013 TYPICAL CHARACTERISTICS PULSE RESPONSE 6 TA = 25C Input Input and Output Voltage - V 5 220 4 3 Pulse Generator f = 100 kHz Output 50 GND 2 TEST CIRCUIT FOR PULSE RESPONSE 1 0 -1 Output 0 1 2 3 4 5 6 7 t - Time - s Figure 15 POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 11 TL431-Q1 ADJUSTABLE PRECISION SHUNT REGULATOR SGLS302D - MARCH 2005 - REVISED MARCH 2013 TYPICAL CHARACTERISTICS STABILITY BOUNDARY CONDITIONS FOR ALL TL431 AND TL431A DEVICES (EXCEPT FOR SOT23-3, SC-70, AND Q-TEMP DEVICES) 100 90 I KA- Cathode Current - mA 80 A VKA = Vref B VKA = 5 V C VKA = 10 V D VKA = 15 Vf 150 IKA + TA = 25C CL VBATT - B 70 Stable 60 C Stable 50 TEST CIRCUIT FOR CURVE A A 40 IKA 30 R1 = 10 k D 20 150 CL + 10 R2 0 0.001 VBATT - 0.01 0.1 10 1 CL - Load Capacitance - F TEST CIRCUIT FOR CURVES B, C, AND D STABILITY BOUNDARY CONDITIONS FOR ALL TL431B, TL432, SOT-23, SC-70, AND Q-TEMP DEVICES 100 90 I KA- Cathode Current - mA 80 150 A VKA = Vref B VKA = 5 V C VKA = 10 V D VKA = 15 Vf 70 60 50 IKA + CL B TA = 25C C Stable Stable A 40 TEST CIRCUIT FOR CURVE A A 30 D IKA 20 R1 = 10 k B 10 0 0.001 0.01 0.1 1 + 10 R2 - The areas under the curves represent conditions that may cause the device to oscillate. For curves B, C, and D, R2 and V+ were adjusted to establish the initial VKA and IKA conditions with CL = 0. VBATT and CL then were adjusted to determine the ranges of stability. POST OFFICE BOX 655303 VBATT TEST CIRCUIT FOR CURVES B, C, AND D Figure 16 12 150 CL CL - Load Capacitance - F VBATT - * DALLAS, TEXAS 75265 TL431-Q1 ADJUSTABLE PRECISION SHUNT REGULATOR SGLS302D - MARCH 2005 - REVISED MARCH 2013 APPLICATION INFORMATION VI(BATT) R (see Note A) VO R1 0.1% Vref TL431 V O + 1 ) R1 V ref R2 R2 0.1% RETURN NOTE A: R should provide cathode current 1 mA to the TL431 at minimum VI(BATT). Figure 17. Shunt Regulator VI(BATT) TL431 Input VIT 2.5 V VO Von 2 V Voff VI(BATT) GND Figure 18. Single-Supply Comparator With Temperature-Compensated Threshold VI(BATT) R (see Note A) 2N222 2N222 30 0.01 F TL431 R2 0.1% R1 0.1% V 4.7 k O + 1 ) R1 V ref R2 VO NOTE A: R should provide cathode current 1 mA to the TL431 at minimum VI(BATT). Figure 19. Precision High-Current Series Regulator POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 13 TL431-Q1 ADJUSTABLE PRECISION SHUNT REGULATOR SGLS302D - MARCH 2005 - REVISED MARCH 2013 APPLICATION INFORMATION VI(BATT) IN OUT uA7805 Common VO R1 TL431 V O + 1 ) R1 V ref R2 Minimum V O + V ref ) 5 V R2 Figure 20. Output Control of a Three-Terminal Fixed Regulator VI(BATT) VO R1 V O + 1 ) R1 V ref R2 TL431 R2 Figure 21. High-Current Shunt Regulator VI(BATT) VO R1 TL431 R2 C (see Note A) NOTE A: See the stability boundary conditions in Figure 16 to determine allowable values for C. Figure 22. Crowbar Circuit 14 POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 TL431-Q1 ADJUSTABLE PRECISION SHUNT REGULATOR SGLS302D - MARCH 2005 - REVISED MARCH 2013 APPLICATION INFORMATION IN VI(BATT) LM317 8.2 k OUT Adjust VO 5 V, 1.5 A 243 0.1% TL431 243 0.1% Figure 23. Precision 5-V 1.5-A Regulator VI(BATT) VO 5 V Rb (see Note A) 27.4 k 0.1% TL431 27.4 k 0.1% NOTE A: Rb should provide cathode current 1 mA to the TL431. Figure 24. Efficient 5-V Precision Regulator 12 V VCC 6.8 k 5V 10 k 10 k 0.1% TL431 10 k 0.1% - + X Not Used TL598 Feedback Figure 25. PWM Converter With Reference POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 15 TL431-Q1 ADJUSTABLE PRECISION SHUNT REGULATOR SGLS302D - MARCH 2005 - REVISED MARCH 2013 APPLICATION INFORMATION R3 (see Note A) VI(BATT) R4 (see Note A) R1B R1A TL431 R2A Low Limit + 1 ) R1B V ref R2B High Limit + 1 ) R1A V ref R2A LED on When Low Limit < VI(BATT) < High Limit R2B NOTE A: R3 and R4 are selected to provide the desired LED intensity and cathode current 1 mA to the TL431 at the available VI(BATT). Figure 26. Voltage Monitor 650 12 V 2 k R TL431 Off Delay + R C In 12 V 12 V * V ref C On Figure 27. Delay Timer RCL 0.1% VI(BATT) R1 TL431 IO I out + R1 + Figure 28. Precision Current Limiter 16 POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 V ref ) I KA R CL V I(BATT) I O ) I KA h FE TL431-Q1 ADJUSTABLE PRECISION SHUNT REGULATOR SGLS302D - MARCH 2005 - REVISED MARCH 2013 APPLICATION INFORMATION VI(BATT) IO I TL431 O + V ref RS RS 0.1% Figure 29. Precision Constant-Current Sink POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 17 PACKAGE OPTION ADDENDUM www.ti.com 11-Apr-2013 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan Lead/Ball Finish (2) MSL Peak Temp Op Temp (C) Top-Side Markings (3) (4) TL431AQDBVRQ1 ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM -40 to 125 TACQ TL431AQDBZRQ1 ACTIVE SOT-23 DBZ 3 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM -40 to 125 TAQU TL431BQDBZRQ1 ACTIVE SOT-23 DBZ 3 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM -40 to 125 T3FU (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. (4) Multiple Top-Side Markings will be inside parentheses. Only one Top-Side Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation of the previous line and the two combined represent the entire Top-Side Marking for that device. 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Addendum-Page 1 Samples PACKAGE OPTION ADDENDUM www.ti.com 11-Apr-2013 OTHER QUALIFIED VERSIONS OF TL431A-Q1, TL431B-Q1 : * Catalog: TL431A, TL431B NOTE: Qualified Version Definitions: * Catalog - TI's standard catalog product Addendum-Page 2 PACKAGE MATERIALS INFORMATION www.ti.com 14-Mar-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) TL431AQDBVRQ1 SOT-23 DBV 5 3000 179.0 8.4 TL431AQDBZRQ1 SOT-23 DBZ 3 3000 179.0 TL431BQDBZRQ1 SOT-23 DBZ 3 3000 179.0 3.2 3.2 1.4 4.0 8.0 Q3 8.4 3.15 2.95 1.22 4.0 8.0 Q3 8.4 3.15 2.95 1.22 4.0 8.0 Q3 Pack Materials-Page 1 W Pin1 (mm) Quadrant PACKAGE MATERIALS INFORMATION www.ti.com 14-Mar-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TL431AQDBVRQ1 SOT-23 DBV 5 3000 203.0 203.0 35.0 TL431AQDBZRQ1 SOT-23 DBZ 3 3000 203.0 203.0 35.0 TL431BQDBZRQ1 SOT-23 DBZ 3 3000 203.0 203.0 35.0 Pack Materials-Page 2 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. 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