Datasheet TL431, TL432 (STMicroelectronics) - 20

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Revision history TL431, TL432 6 Revision history Table 13. 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. Specified that SO-8 package is batwing package. In electrical characteristics tables, moved negative values from max column to 08-Jun-2007 4 min column. Corrected captions of Figure 7 and of Figure 18. Added footnote to Table 8: TO-92 bulk package mechanical data. Corrected SO-8 package mechanical data. 25-Feb-2008 5 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. 04-Jun-2009 6 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. 09-Jun-2009 7 Corrected minor error in package column in Table 12. Added Figure 3 on page 3, Section 4.4 on page 15 and Section 4.5 on page 14-Mar-2011 8 16. Added new package mechanical data Table 11 on page 17 and Figure 29 on 07-Oct-2011 9 page 17. Updated Table 12 on page 18. Added new part number TL432, new order code Table 12 on page 18 and pin 17-Nov-2011 10 connection for TL432 Figure 3 on page 3. Removed temperature range in title Table 3 on page 5, Table 4 on page 6 and 03-Dec-2012 11 Table 5 on page 7. 20/21 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