Datasheet TL431, TL432 (STMicroelectronics) - 4

Absolute maximum ratings and operating conditions TL431, TL432 2 Absolute maximum ratings and operating conditions Table 1. Absolute maximum ratings Symbol Parameter Value Unit
VKA Cathode to anode voltage 37 V Ik Continuous cathode current range -100 to +150 mA Iref Reference input current range -0.05 to +10 mA Thermal resistance junction to ambient(1) TO-92 200 SO-8 batwing 85 Rthja °C/W SOT23-3L 248 SOT23-5L 157 SOT323-6L 221 Thermal resistance junction to case (1) SO-8 batwing 30 R 136 thjc SOT23-3L °C/W SOT23-5L 67 SOT323-6L 110 Tstg Storage temperature range -65 to +150 °C TJ Junction temperature 150 °C TL431IY, TL431AIY-T: HBM (human body model) (2) 3000 TL431-TL432: HBM (human body model) 2000 ESD V MM: machine model (3) 200 CDM: charged device model (4) 1500 1. Short-circuits can cause excessive heating. These values are typical. 2. 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. 3. 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. 4. 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 Parameter Value Unit
VKA Cathode to anode voltage Vref to 36 V Ik Cathode current 1 to 100 mA Operating free-air temperature range TL431C/AC 0 to +70 Toper TL431I/AI - TL432I/AI -40 to +105 °C TL431IY/AIY -40 to +125 4/21 Doc ID 4467 Rev 11 Document Outline 1 Schematic diagrams Figure 1. TO-92 pin connections (top view) Figure 2. SO-8 batwing pin connections (top view) Figure 3. SOT23-5 and SOT23-3 pin connections (top view) Figure 4. SOT323-6 pin connections (top view) Figure 5. TL431 and TL432 block diagram 2 Absolute maximum ratings and operating conditions Table 1. Absolute maximum ratings Table 2. Operating conditions 3 Electrical characteristics Table 3. TL431C (Tamb = 25˚ C unless otherwise specified) Table 4. TL431I/TL432I (Tamb = 25˚C unless otherwise specified) Table 5. TL431IY (Tamb = 25˚C unless otherwise specified) 3.1 Reference input voltage deviation over temperature range Figure 6. Reference input voltage deviation over temperature range Figure 7. Test circuit for VKA = Vref Figure 8. Test circuit for programming mode Figure 9. Test circuit for Ioff Figure 10. Test circuit for phase margin and voltage gain Figure 11. Test circuit for response time Figure 12. Reference voltage vs. temperature 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 Figure 17. Ratio of change in Vref to change in VKA vs. temperature Figure 18. Static impedance RKA vs. temperature Figure 19. Minimum operating current vs. temperature Figure 20. Gain and phase vs. frequency Figure 21. Stability behavior with capacitive loads Figure 22. Maximum power dissipation Figure 23. Pulse response for Ik = 1 mA 4 Package mechanical data 4.1 SO-8 package information Figure 24. SO-8 package mechanical drawing Table 6. SO-8 package mechanical data 4.2 TO-92 ammopack and tape and reel package information Figure 25. TO-92 ammopack and tape and reel package mechanical drawing Table 7. TO-92 ammopack and tape and reel package mechanical data 4.3 TO-92 (bulk) package information Figure 26. TO-92 bulk package mechanical drawing Table 8. TO-92 bulk package mechanical data 4.4 SOT23-3 package information Figure 27. SOT23-3 package mechanical drawing Table 9. SOT23-3 package mechanical data 4.5 SOT23-5 package information Figure 28. SOT23-5 package mechanical drawing Table 10. SOT23-5 package mechanical data 4.6 SOT323-6 package information Figure 29. SOT323-6 package mechanical drawing Table 11. SOT323-6 package mechanical data 5 Ordering information Table 12. Order codes 6 Revision history Table 13. Document revision history