TS3431 STMICROELECTRONICS | Alldatasheet
Document overview
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Technical content
December 2004 Revision 2 1/11 ■ Adjustable output voltage: 1.24 to 24V ■ Several precision @ 25°C ■ Sink current capability: 0.4 to 100mA ■ Industrial temperature range: -40 to +125°C ■ Performances compatible with industry standard TL431
Description
The TS3431 is a programmable shunt voltage reference with guaranteed temperature stability over the entire temperature range of operation (-40 to +125°C). The output voltage may be set to any value between 1.24V and 24V with an external resistor bridge. Available in SOT23-3 surface mount package, it can be designed in applications where space saving is a critical issue.
Applications
■ Computers ■ Instrumentation ■ Battery chargers ■ Switch mode power supply ■ Battery operated equipments Pin Connections (top view) Order Codes L SOT23-3L (Plastic Micropackage) Z TO-92 (Plastic Package) TO-92 (top view) SOT23-3 (top view) 2Cathode Reference Anode TS3431 Part Number Temperature Range Package Packaging Marking TS3431ILT/AILT/BILT/CILT -40, +125°C SOT23-3L Tape & Reel L280-L281 L282-L283 TS3431IZ/AIZ/BIZ/CIZ TO-92 Bulk TS3431IZT/AIZT/BIZT/CIZT Tape & Reel TS3431IZ-AP/AIZ-AP/BIZ-AP/CIZ-AP Ammo pack TS3431 1.24V Programmable Shunt Voltage Reference
1 Absolute Maximum Ratings
Table 1. Key parameters and their absolute maximum ratings Table 2. Operating Conditions
2 Electrical Characteristics
Table 3. Tamb = 25°C (unless otherwise specified) Note: Limits are 100% production tested at 25°C. Limits over temperature are guaranteed through correlation and by design.
Figure 7. Off-State current vs temperature Figure 8. Ratio of change in reference input Figure 9. Phase and gain vs frequency Figure 10. Test circuit for off-state current Figure 11. Test circuit for V K > VREF Figure 12. Test circuit for phase and gain
4.3 K Ω
6.8 K Ω
3 Package Mechanical Data
3.1 3 Pins - Plastic Package TO-92 (tape & reel) Dim. Millimeters Inches AL 5.0 0.197 A 5.0 0.197 T 4.0 0.157 d 0.45 0.018 I1 2.5 0.098 ∆h -1 0 1 -0.039 0 0.039 ∆P -1 0 1 -0.039 0 0.039 W2 0.5 0.020 H2 0 0 . 7 8 7 H1 25 0.984 L1 11 0.433 P P A T H H1 H d I1 H0 W2 W0 W1 W F1 F2
3.2 3 Pins - Plastic Package TO-92 (tape ammo pack) Dim. Millimeters Inches AL 5.0 0.197 A 5.0 0.197 T 4.0 0.157 d 0.45 0.018 I1 2.5 0.098 ∆h -1 0 1 -0.039 0 0.039 ∆P -1 0 1 -0.039 0 0.039 W2 0.5 0.020 H 20 0.787 H1 25 0.984 L1 11 0.433 P P A T H H1 H d I1 H0 W2 W0 W1 W F1 F2
3.3 3 Pins - Plastic Package TO-92 (bulk) DIM. mm. mils A 4.32 4.95 170.1 194.9 b 0.36 0.51 14.2 20.1 D 4.45 4.95 175.2 194.9 E 3.30 3.94 129.9 155.1 e 2.41 2.67 94.9 105.1 e1 1.14 1.40 44.9 55.1 L 12.7 15.49 500.0 609.8 R 2.16 2.41 85.0 94.9 S1 0.92 1.52 36.2 59.8 W 0.41 0.56 16.1 22.0 TO-92 MECHANICA DATA 0102782/C
3.4 SOT23-3L Package
DIM. mm. mils A 0.890 1.120 35.05 44.12 A1 0.010 0.100 0.39 3.94 b 0.300 0.500 11.81 19.69 C 0.080 0.200 3.15 7.88 E 2.100 2.64 82.70 103.96 e 0.950 37.41 e1 1.900 74.82 L 0.400 0.600 15.75 23.63 L1 0.540 21.27 k8 ° 8 ° SOT23-3L MECHANICAL DATA A D e b E 0.10 C C SEATING PLANE L 0.25 GAUGE PLANE c 7110469/A
4 Revision History
Date Revision Description of Changes 01 Jan. 2004 1 First Release 01 Dec. 2004 2 Specific content changes as follows: CI version added in Table: Order Codes on page 1 Rthjc information added in Table1: Key parameters and their absolute maximum ratings on page 2 Test condition added in Table3: Tamb = 25°C (unless otherwise specified) on page 3 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the co nsequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publicati on are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics prod ucts are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectro nics. The ST logo is a registered trademark of STMicroelectronics All other names are the property of their respective owners © 2004 STMicroelectronics - All rights reserved STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Ital y - Japan - Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America