TL431IYDT

TL431 TL432 Automotive adjustable voltage reference Datasheet - production data Applications • Power supply • Industrial • Automotive Z TO-92 (Plastic package) L SOT23-5 L SOT23-3 Description C SOT323-6 The TL431 and TL432 are adjustable shunt voltage references with guaranteed temperature stability over the entire operating temperature range. The device temperature range is extended for the automotive version from -40 °C up to +125 °C. The output voltage can be set to any value between 2.5 and 36 V with two external resistors. The TL431 and TL432 operate with a wide current range from 1 to 100 mA with a typical dynamic impedance of 0.22 Ω. D SO-8 (Batwing plastic micropackage) Features • AEC-Q100 qualified • Adjustable output voltage: 2.5 to 36 V • Sink current capability: 1 to 100 mA • Typical output impedance: 0.22 Ω • 0.5% voltage precision only on the TL431B version • 1% and 2% voltage precision • Automotive temp. range -40 °C to +125 °C September 2022 This is information on a product in full production. DocID4467 Rev 17 1/22 www.st.com Contents TL431, TL432 Contents 1 Schematic diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Absolute maximum ratings and operating conditions . . . . . . . . . . . . . 4 3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Reference input voltage deviation overtemperature range . . . . . . . . . . . . . . . . . . . 8 4 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 4.1 SO-8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 4.2 TO-92 ammopack and tape and reel package information . . . . . . . . . . . 14 4.3 TO-92 (bulk) package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 4.4 SOT23-3 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 4.5 SOT23-5 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 4.6 SOT323-6 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 5 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 6 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 2/22 DocID4467 Rev 17 TL431, TL432 1 Schematic diagrams Schematic diagrams Figure 1. TO-92 pin connections (top view) Figure 2. SO-8 batwing pin connections (top view) SO8 Cathode 1 8 Ref Anode 2 7 Anode 3 6 NC 4 5 NC Figure 3. SOT23-5 and SOT23-3 pin connections (top view) SOT23-5 NC 1 NC 2 Cathode 3 SOT23-3 5 Anode Cathode 1 4 Ref Ref 2 3 Anode TL431 TL431 TL432 Figure 4. SOT323-6 pin connections (top view) Figure 5. TL431 and TL432 block diagram Cathode Ref Vref Anode DocID4467 Rev 17 3/22 22 Absolute maximum ratings and operating conditions 2 TL431, TL432 Absolute maximum ratings and operating conditions Table 1. Absolute maximum ratings Symbol VKA Parameter Cathode to anode voltage Value Unit 37 V Ik Continuous cathode current range -100 to +150 mA Iref Reference input current range -0.05 to +10 mA Rthjc Thermal resistance junction to case TO-92 SO-8 batwing SOT23-3L SOT23-5L SOT323-6L 57 30 136 67 110 Rthja Thermal resistance junction to ambient TO-92 SO-8 batwing SOT23-3L SOT23-5L SOT323-6L 200 85 248 157 221 Tstg Storage temperature range TJ Junction temperature ESD TL431IY, TL431AIY-T: HBM (human body model) TL431-TL432: HBM (human body model) MM: machine model(2) CDM: charged device model(3) (1) °C/W °C/W -65 to +150 °C 150 °C 3000 2000 200 1500 V 1. Human body model: a 100 pF capacitor is charged to the specified voltage, then discharged through a 1.5 kΩ resistor between two pins of the device. This is done for all couples of connected pin combinations while the other pins are floating. 2. Machine model: a 200 pF capacitor is charged to the specified voltage, then discharged directly between two pins of the device with no external series resistor (internal resistor < 5 Ω). This is done for all couples of connected pin combinations while the other pins are floating. 3. Charged device model: all pins and the package are charged together to the specified voltage and then discharged directly to the ground through only one pin. This is done for all pins. Table 2. Operating conditions Symbol VKA Ik Toper 4/22 Parameter Value Unit Cathode to anode voltage Vref to 36 V Cathode current 1 to 100 mA 0 to +70 -40 to +105 -40 to +125 -40 to +125 °C Operating free-air temperature range TL431C/AC TL431I/AI - TL432I/AI TL431B TL431IY/AIY DocID4467 Rev 17 TL431, TL432 3 Electrical characteristics Electrical characteristics Table 3. TL431C (Tamb = 25 °C unless otherwise specified) TL431C Symbol Unit Min. Vref ∆Vref ∆Vref -----------∆Vka Iref ∆Iref TL431AC Parameter Reference input voltage VKA = Vref, Ik = 10 mA, Tamb = 25 °C Tmin ≤ Tamb ≤ Tmax Max. Min. Typ. Max. 2.44 2.495 2.55 2.47 2.495 2.52 2.423 2.567 2.453 2.537 Reference input voltage deviation overtemperature range (1) VKA = Vref, Ik = 10 mA, Tmin ≤ Tamb ≤ Tmax Ratio of change in reference input voltage to change in cathode to anode voltage Ik = 10 mA - ∆VKA = 10 V to Vref ∆VKA = 36 V to 10 V Typ. mV - 3 17 -2.7 -2 -1.4 -1 - 1.8 - Reference input current Ik = 10 mA, R1 = 10 kΩ, R2 = ∞ Tamb = 25 °C Tmin ≤ Tamb ≤ Tmax Reference input current deviation overtemperature range Ik = 10 mA, R1 = 10 kΩ, R2 =∞ Tmin ≤ Tamb ≤ Tmax - 3 15 - -2.7 -2 -1.4 -1 - 4 5.2 - 1.8 - 4 5.2 mV/V µA µA - 0.4 1.2 0.5 1 - 0.4 1.2 0.5 0.6 Imin Minimum cathode current for regulation VKA = Vref - Ioff Off-state cathode current - 2.6 1000 - 2.6 1000 Dynamic impedance(2) VKA = Vref, ∆ Ik = 1 to 100 mA, f ≤ 1 kHZ - 0.22 0.5 - 0.22 0.5 ZKA V - mA nA Ω 1. See definition of Section : Reference input voltage deviation overtemperature range. ∆V KA 2. The dynamic impedance is defined as |ZKA| = --------------- ∆I k DocID4467 Rev 17 5/22 22 Electrical characteristics TL431, TL432 Table 4. TL431B, TL432B (Tamb = 25 °C unless otherwise specified) TL431B, TL432B Symbol Vref ∆Vref ∆Vref -----------∆Vka Iref ∆Iref Parameter Reference input voltage VKA = Vref, Ik = 10 mA, Tamb = 25 °C Tmin ≤ Tamb ≤ Tmax Reference input voltage deviation overtemperature range (1) VKA = Vref, Ik = 10 mA, Tmin ≤ Tamb ≤ Tmax Ratio of change in reference input voltage to change in cathode to anode voltage Ik = 10 mA - ∆VKA = 10 V to Vref ∆VKA = 36 V to 10 V Reference input current Ik = 10 mA, R1 = 10 kΩ, R2 = ∞ Tamb = 25 °C Tmin ≤ Tamb ≤ Tmax Reference input current deviation overtemperature range Ik = 10 mA, R1 = 10 kΩ, R2 =∞ Tmin ≤ Tamb ≤ Tmax Typ. Max. 2.483 2.453 2.495 - 2.507 2.537 - 7 30 -2.7 -2 -1.4 -1 - - 1.8 - 4 6.5 - 0.8 2.5 0.45 0.6 - Ioff Off-state cathode current - 180 500 - 0.22 0.5 (2) 1. See definition of Section : Reference input voltage deviation overtemperature range. ∆V KA 2. The dynamic impedance is defined as |ZKA| = --------------- ∆I k DocID4467 Rev 17 mV/V µA µA Minimum cathode current for regulation VKA = Vref Dynamic impedance VKA = Vref, ∆ Ik = 1 to 100 mA, f ≤ 1 kHZ V mV Imin ZKA 6/22 Unit Min. mA nA Ω TL431, TL432 Electrical characteristics Table 5. TL431I/TL432I (Tamb = 25 °C unless otherwise specified) TL431I/TL432I Symbol Unit Min. Vref Reference input voltage VKA = Vref, Ik = 10 mA, Tamb = 25 °C Tmin ≤ Tamb ≤ Tmax ∆Vref Reference input voltage deviation overtemperature range (1) VKA = Vref, Ik =10 mA, Tmin≤ Tamb≤ Tmax ∆Vref -----------∆Vka Ratio of change in reference input voltage to change in cathode to anode voltage Ik = 10 mA, ∆VKA = 10 V to Vref ∆VKA = 36 V to 10 V Iref ∆Iref TL431AI/TL432AI Parameter Typ. Max. 2.44 2.495 2.55 2.41 2.58 Min. Typ. Max. 2.47 2.495 2.52 2.44 2.55 V - 7 30 - 7 30 mV -2.7 -2 -1.4 -1 - -2.7 -2 -1.4 -1 - mV/V - 1.8 - 4 6.5 - 1.8 - 4 6.5 µA - 0.8 2.5 - 0.8 1.2 µA Reference input current Ik = 10 mA, R1 = 10 kΩ, R2 = ∞ Tamb = 25 °C Tmin ≤ Tamb ≤ Tmax Reference input current deviation overtemperature range Ik = 10 mA, R1 = 10 kΩ, R2 = ∞ Tmin ≤ Tamb ≤ Tmax Imin Minimum cathode current for regulation VKA = Vref - 0.5 1 - 0.5 0.7 mA Ioff Off-state cathode current - 2.6 1000 - 2.6 1000 nA - 0.22 0.5 - 0.22 0.5 Ω ZKA (2) Dynamic impedance VKA = Vref, ∆ Ik = 1 to 100 mA, f ≤ 1 kHZ 1. See definition of Section : Reference input voltage deviation overtemperature range below. ∆V KA 2. The dynamic impedance is defined as |ZKA| = --------------- ∆I k DocID4467 Rev 17 7/22 22 Electrical characteristics TL431, TL432 Table 6. TL431IY (Tamb = 25 °C unless otherwise specified) TL431IY Symbol Unit Min. Vref ∆Vref ∆Vref -----------∆Vka Iref ∆Iref TL431AIY Parameter Reference input voltage VKA = Vref, Ik = 10 mA Tmin ≤ Tamb ≤ Tmax Typ. Max. 2.44 2.495 2.55 2.41 2.58 Reference input voltage deviation overtemperature range(1) VKA = Vref, Ik = 10 mA, Tmin≤ Tamb ≤ Tmax Ratio of change in reference input voltage to change in cathode to anode voltage Ik = 10 mA, ∆VKA = 10 V to Vref Ik = 10 mA, ∆VKA = 36 V to 10 V Min. Typ. Max. 2.47 2.495 2.52 2.44 2.55 V - 7 30 - 7 30 mV -2.7 -2 -1.4 -1 - -2.7 -2 -1.4 -1 - mV/V - 1.8 - 4 6.5 - 1.8 - 4 6.5 µA - 0.8 2.5 - 0.8 1.2 µA Reference input current Ik = 10 mA, R1 = 10 kΩ, R2 = ∞ Tmin ≤ Tamb ≤ Tmax Reference input current deviation overtemperature range Ik = 10 mA, R1 = 10 kΩ, R2 = ∞, Tmin ≤ Tamb ≤ Tmax Imin Minimum cathode current for regulation VKA = Vref - 0.5 1 - 0.5 0.6 mA Ioff Off-state cathode current Tmin ≤ Tamb ≤ Tmax - 2.6 1000 3000 - 2.6 1000 3000 nA Dynamic impedance(2) VKA = Vref, ∆ Ik = 1 to 100 mA, F ≤ 1 kHz - 0.22 0.5 - 0.22 0.5 Ω ZKA 1. See definition of Section : Reference input voltage deviation overtemperature range below. ∆V KA 2. The dynamic impedance is defined as |ZKA| = --------------- ∆I k Reference input voltage deviation overtemperature range ∆Vref is defined as the difference between the maximum and minimum values obtained over the full temperature range. ∆Vref = Vref max - Vref min Figure 6. Reference input voltage deviation overtemperature range 8/22 DocID4467 Rev 17 TL431, TL432 Electrical characteristics Figure 7. Test circuit for VKA = Vref Figure 8. Test circuit for programming mode Input Input R Output R IK Output R1 IK=10mA VKA IREF R2 VKA VREF VREF R1- ) + R1 x I VKA = VREF ( 1 + -----REF R2 Figure 9. Test circuit for Ioff Figure 10. Test circuit for phase margin and voltage gain VKA=36V 10µF 10µF Figure 11. Test circuit for response time Output 8.25kΩ Input IK=10mA 15kΩ IOFF VREF Figure 12. Reference voltage vs. temperature 1 mA 0 mA Output IK=1mA Cathode voltage VKA (V) 2.54 VKA = VREF IK = 10 mA 2.52 2.50 2.48 2.46 2.44 -40 -20 0 20 40 60 80 100 120 Temperature (°C) DocID4467 Rev 17 9/22 22 Electrical characteristics TL431, TL432 Figure 13. Reference voltage vs. cathode current Figure 14. Zoom on reference voltage vs. cathode current Figure 15. Reference current vs. temperature Figure 16. Off-state cathode current vs. temperature 0.4 Off-state current IOFF (µA) Reference current IREF (µA) 2.0 IK=10 mA R1=10kΩ R2= + ∝ 1.5 1.0 0.5 0.0 -40 VKA = 36 V VREF = 0 V 0.3 0.2 0.1 -20 0 20 40 60 80 100 0.0 -40 120 -20 0 Figure 17. Ratio of change in Vref to change in VKA vs. temperature Static impedance RKA (Ω) ∆VREF / ∆VKA (mV / V) 60 80 100 120 0.20 IK = 10 mA -0.5 -1.0 -1.5 VKA=VREF 0.18 0.16 0.14 0.12 -20 0 20 40 60 80 100 120 0.10 -40 -20 0 20 40 60 Temperature (°C) Temperature (°C) 10/22 40 Figure 18. Static impedance RKA vs. temperature 0.0 -2.0 -40 20 Temperature (°C) Temperature °C DocID4467 Rev 17 80 100 120 TL431, TL432 Electrical characteristics Figure 19. Minimum operating current vs. temperature Figure 20. Gain and phase vs. frequency Minimum cathode current IMIN (mA) 0.6 0.4 VKA = VREF 0.2 0.0 -40 -20 0 20 40 60 80 100 120 Temperature (°C) Figure 21. Stability behavior with capacitive loads Figure 22. Maximum power dissipation Figure 23. Pulse response for Ik = 1 mA DocID4467 Rev 17 11/22 22 Package information 4 TL431, TL432 Package information In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at: www.st.com. ECOPACK is an ST trademark. 12/22 DocID4467 Rev 17 TL431, TL432 4.1 Package information SO-8 package information Figure 24. SO-8 package outline Table 7. SO-8 package mechanical data Dimensions Symbol Millimeters Min. A Inches Typ. Max. Min. Typ. Max. - 1.75 - - 0.069 A1 0.10 - 0.25 0.004 - 0.010 A2 1.25 - - 0.049 - - b 0.28 - 0.48 0.011 - 0.019 c 0.17 - 0.23 0.007 - 0.010 D 4.80 4.90 5.00 0.189 0.193 0.197 E 5.80 6.00 6.20 0.228 0.236 0.244 E1 3.80 3.90 4.00 0.150 0.154 0.157 e - 1.27 - - 0.050 - h 0.25 - 0.50 0.010 - 0.020 L 0.40 - 1.27 0.016 - 0.050 L1 - 1.04 - - 0.040 - k 0° - 8° 0° - 8° ccc - - 0.10 - - 0.004 DocID4467 Rev 17 13/22 22 Package information 4.2 TL431, TL432 TO-92 ammopack and tape and reel package information Figure 25. TO-92 ammopack and tape and reel package outline Table 8. TO-92 ammopack and tape and reel package mechanical data Dimension (millimeters) Dimension (Inches) Symbol 14/22 Min. Typ. Max. Min. Typ. Max. A1 - - 5.0 - - 0.197 A - - 5.0 - - 0.197 T - - 4.0 - - 0.157 d 0.35 0.45 0.55 0.014 0.018 0.022 I1 2.5 - - 0.098 - - P 11.7 12.7 13.7 0.461 0.500 0.539 PO 12.4 12.7 13 0.488 0.500 0.512 P2 5.95 6.35 6.75 0.234 0.250 0.266 F1/F2 2.4 2.5 2.8 0.094 0.098 0.110 ∆h -1 0 1 -0.039 0 0.039 ∆P -1 0 1 -0.039 0 0.039 W 17.5 18.0 19.0 0.689 0.709 0.748 W0 5.7 6 6.3 0.224 0.236 0.248 W1 8.5 9 9.75 0.335 0.354 0.384 W2 - - 0.5 - - 0.020 H - - 20 - - 0.787 H0 15.5 16 16.5 0.610 0.630 0.650 H1 - - 25 - - 0.984 DO 3.8 4.0 4.2 0.150 0.157 0.165 L1 - - 11 - - 0.433 DocID4467 Rev 17 TL431, TL432 4.3 Package information TO-92 (bulk) package information Figure 26. TO-92 bulk package outline 0067407_H Table 9. TO-92 bulk package mechanical data Dimension (millimeters) Dimension (Inches) Symbol Min. Typ. Max. Min. Typ. Max. A - 1.35 - - 0.053 - B - - 4.70 - - 0.185 C - 2.54 - - 0.100 - D 4.40 - - 0.173 - - E 12.70 - - 0.500 - - F - - 3.70 - - 0.146 a - - 0.5 - - 0.019 DocID4467 Rev 17 15/22 22 Package information 4.4 TL431, TL432 SOT23-3 package information Figure 27. SOT23-3 package outline Table 10. SOT23-3 package mechanical data Dimensions Symbol 16/22 Millimeters Inches Min. Typ. Max. Min. Typ. Max. A 0.89 - 1.12 0.035 - 0.044 A1 0.01 - 0.10 0.0004 - 0.004 A2 0.88 0.95 1.02 0.035 0.037 0.040 b 0.30 - 0.50 0.012 - 0.020 c 0.08 - 0.20 0.003 - 0.008 D 2.80 2.90 3.04 0.110 0.114 0.120 E 2.10 - 2.64 0.083 - 0.104 E1 1.20 1.30 1.40 0.047 0.051 0.055 e - 0.95 - - 0.037 - e1 - 1.90 - - 0.075 - L 0.40 0.50 0.60 0.016 0.020 0.024 L1 - 0.54 - - 0.021 - k 0d - 8d - - - DocID4467 Rev 17 TL431, TL432 4.5 Package information SOT23-5 package information Figure 28. SOT23-5 package outline 7049676_I Table 11. SOT23-5 package mechanical data Dimensions Symbol Millimeters Inches Min. Typ. Max. Min. Typ. Max. A 0.90 - 1.45 0.035 - 0.057 A1 - - 0.15 - - 0.006 A2 0.90 - 1.30 0.035 - 0.051 b 0.35 - 0.50 0.014 - 0.020 c 0.09 - 0.20 0.004 - 0.008 D 2.80 - 3.05 0.110 - 0.120 E 1.50 - 1.75 0.059 - 0.069 e - 0.95 - - 0.037 - H 2.60 - 3.00 0.102 - 0.118 L 0.10 - 0.60 0.004 - 0.024 θ 0 degrees - 10 degrees - - - DocID4467 Rev 17 17/22 22 Package information 4.6 TL431, TL432 SOT323-6 package information Figure 29. SOT323-6 package outline 7095021_E Table 12. SOT323-6 package mechanical data Dimensions Symbol 18/22 Millimeters Inches Min. Typ. Max. Min. Typ. Max. A 0.80 - 1.10 0.031 - 0.043 A1 0 - 0.10 - - 0.004 A2 0.80 - 1.00 0.031 - 0.039 b 0.15 - 0.30 0.006 - 0.012 c 0.10 - 0.18 0.004 - 0.007 D 1.80 - 2.20 0.071 - 0.087 E 1.15 - 1.35 0.045 - 0.053 e - 0.65 - - 0.026 - HE 1.80 - 2.40 0.071 - 0.094 L 0.10 - 0.40 0.004 - 0.016 Q1 0.10 - 0.40 0.004 - 0.016 DocID4467 Rev 17 TL431, TL432 5 Ordering information Ordering information Table 13. Order codes Order code Accuracy (%) Temperature range Package Packing SO-8 Tube or Tape and reel Marking TL431CD TL431CDT 2 TL431ACD TL431ACDT 1 TL431CZ TL431CZT TL431CZ-AP 2 TL431ACZ TL431ACZT TL431ACZ-AP 1 TL431CL3T 2 TL431ACL3T 1 TL431CL5T 2 TL431ACL5T 1 TL431CCT 2 TL431ACCT 1 TL431ID TL431IDT 2 TL431AID TL431AIDT 1 TL431IZ TL431IZT TL431IZ-AP 2 TL431AIZ TL431AIZT TL431AIZ-AP 1 TL431IL3T 2 TL431AIL3T 1 TL432IL3T 2 TL432AIL3T 1 TL431IL5T 2 TL431AIL5T 1 TL431ICT 2 TL431AICT 1 TL431BL3T 0.5 -40 °C to +125 °C SOT23-3 1B TL432BL3T 0.5 -40 °C to +125 °C SOT23-3 2B 431CH 431ACH TL431C TO-92 Bulk or Tape or Ammopack 0 °C to +70 °C TL431AC L19 SOT23-3 SOT23-5 L18 Tape L19 L18 31C SOT323-6 31C 431IH SO-8 Tube or tape and reel 431AIH TL431I TO-92 Bulk or Tape or Ammopack TL431AI -40 °C to +105 °C L17 SOT23-3 L16 32I SOT23-3 SOT23-5 SOT323-6 DocID4467 Rev 17 32AI Tape L17 L16 31I 31I 19/22 22 Ordering information TL431, TL432 Table 13. Order codes (continued) Order code Accuracy (%) TL431IYD(1) TL431IYDT(1) 2 TL431AIYD(1) TL431AIYDT(1) 1 Temperature range Package Packing -40 °C to +125 °C SO-8 (Automotive grade level) Tube or tape and reel Marking 431IY 431AIY 1. Qualification and characterization according to AEC Q100 and Q003 or equivalent, advanced screening according to AEC Q001 and Q 002 or equivalent. 20/22 DocID4467 Rev 17 TL431, TL432 6 Revision history Revision history nes Table 14. Document revision history Date Revision Changes 01-Mar-2002 1 Initial release. 01-Nov-2005 2 PPAP references inserted in order codes table on cover page. 13-Dec-2006 3 Corrected TO-92 package information. 08-Jun-2007 4 Specified that SO-8 package is batwing package. In electrical characteristics tables, moved negative values from max column to min column. Corrected captions of Figure 7 and of Figure 18. Added footnote to Table 8: TO-92 bulk package mechanical data. 25-Feb-2008 5 Corrected SO-8 package mechanical data. Corrected footnote for automotive grade order codes in order code table. Corrected packing information for TO-92 devices in order code table. Changed IMIN to 0.6 mA in Table 3 and Table 4. Increased temperature range to 125°C in temperature curves. Added Table 5, dedicated to automotive version. Increased high temperature for automotive range up to +125 °C in Table 5 and in Table 12: Order codes. Inserted accuracy column in Table 12. 04-Jun-2009 6 09-Jun-2009 7 Corrected minor error in package column in Table 12. 14-Mar-2011 8 Added Figure 3 on page 3, Section 4.4 on page 15 and Section 4.5 on page 16. 07-Oct-2011 9 Added new package mechanical data Table 11 on page 17 and Figure 29 on page 17. Updated Table 12 on page 18. 17-Nov-2011 10 Added new part number TL432, new order code Table 12 on page 18 and pin connection for TL432 Figure 3 on page 3. 03-Dec-2012 11 Removed temperature range in title Table 3 on page 5, Table 4 on page 6 and Table 5 on page 7. 07-Dec-2017 12 Updated main title on page 1 and Section : Features on page 1, (added “automotive” - AEC-Q100 qualified). Updated Table 1 on page 4 (updated Rthja and Rthjc). Minor modifications throughout document. Added the part number TL431B and all its occurrences throughout the 10-Sep-2020 13 23-Sep-2020 14 Updated Table 4: TL431B (Tamb = 25 °C unless otherwise specified). 08-Feb-2021 15 Updated Table 13: Order codes. 14-Feb-2022 16 Added new order code TL432BL3T and updated Marking in Table 13. 02-Sep-2022 17 Added min. and max. values dimension d in Table 8. document. DocID4467 Rev 17 21/22 22 TL431, TL432 IMPORTANT NOTICE – PLEASE READ CAREFULLY STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgement. Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of Purchasers’ products. No license, express or implied, to any intellectual property right is granted by ST herein. Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product. ST and the ST logo are trademarks of ST. For additional information about ST trademarks, please refer to www.st.com/trademarks. All other product or service names are the property of their respective owners. Information in this document supersedes and replaces information previously supplied in any prior versions of this document. © 2022 STMicroelectronics – All rights reserved 22/22 DocID4467 Rev 17