LM431B Fairchild Semiconductor, LM431B Datasheet
LM431B
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LM431B Summary of contents
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... Internal Block Diagram REFERENCE REFERENCE (R) ©2011 Fairchild Semiconductor Corporation Description The LM431A/LM431B/LM431C are three terminal output adjustable regulators with thermal stability over operating temperature range. The output voltage can be set any value between V REF two external resistors. These devices have a typical dynamic output impedance of 0.2Ω ...
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... LM431A/LM431B/LM431C Absolute Maximum Ratings (Operating temperature range applies unless otherwise specified.) Parameter Cathode Voltage Cathode Current Range (Continuous) Reference Input Current Range Power Dissipation M, Z Suffix Package N Suffix Package Operating Temperature Range LM431xC LM431xI Junction Temperature Storage Temperature Range Recommended Operating Conditions ...
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... Min. Typ. Max. Min. Typ. Max. Min. Typ. Max =10mA 2.450 2.500 2.550 2.470 2.495 2.520 2.482 2.495 2.508 REF =10mA - 4.5 REF KA ≤T A MAX ΔV =10V -1.0 V REF ΔV =36V -0.5 10V - 1.5 =∞ 2 =∞ 0.45 REF - 0. REF - 0.15 ° = +85 C ° C LM431A/LM431B/LM431C LM431B LM431C 4.5 -2.7 - -1.0 -2.7 - -1.0 -2.0 - -0.5 -2 1.5 1.2 - 0.4 1.2 - 0.4 1.0 - 0.45 1.0 - 0.45 1.0 - 0.05 1.0 - 0.05 0.5 - 0.15 0.5 - 0.15 Unit V ...
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... LM431A/LM431B/LM431C Test Circuits LM431A/B/C Figure 1. Test Circuit for V Figure 3. Test Circuit for REF LM431A/B/C KA(OFF) LM431A/B/C ≥V Figure 2. Test Circuit for V KA REF ...
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... Typical Performance Characteristics Figure 4. Cathode Current vs. Cathode Voltage Figure 6. Change In Reference Input Voltage vs. Cathode Voltage Figure 8. Small Signal Voltage Amplification vs. Frequency LM431A/LM431B/LM431C Figure 5. Cathode Current vs. Cathode Voltage Figure7. Dynamic Impedance Frequency Figure 9. Pulse Response 5 ...
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... LM431A/LM431B/LM431C Typical Performance Characteristics 140 Vref 120 5 100 stable 100p 1n 10n C , LOAD CAPACITANCE L Figure 10. Stability Boundary Conditions 6 (Continued stable D 100n 1 10 ...
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... Figure 14. Current Limit or Current Source R ⎛ ⎞ 1 ------ - ⎝ ⎠ O ref R 2 LM7805/MC7805 LM431A/B/C Figure 12 . Output Control for - Three minal Fixed Regulator Figure 15. Constant-Current Sink LM431A/LM431B/LM431C R ⎛ ⎞ ------ - ⎝ ⎠ O ref R 2 LM431A/B/C Figure 13. High Current Shunt Regulator LM431A/B/C 7 ...
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... LM431A/LM431B/LM431C Mechanical Dimensions Package +0.25 4.58 –0.15 ±0.10 0.46 1.27TYP ±0.20 [1.27 ] ±0.20 3.60 8 TO-92 1.27TYP ±0.20 [1.27 ] (R2.29) Dimensions in millimeters +0.10 0.38 –0.05 ...
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... Mechanical Dimensions Package #1 #4 0.236 3.95 0.156 0.50 ±0.20 ±0.008 0.020 (Continued) 8-SOP 1.55 ±0.20 ±0.008 0.061 #8 #5 ±0.30 6.00 1.80 MAX ±0.012 0.071 ±0.20 ±0.008 5.72 0.225 LM431A/LM431B/LM431C Dimensions in millimeters 0.1~0.25 MIN 0.004~0.001 9 ...
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... LM431A/LM431B/LM431C Mechanical Dimensions Package ±0.20 6.40 ±0.008 0.252 #1 #4 7.62 0.300 10 (Continued) 8-DIP #8 #5 5.08 MAX 0.200 ±0.20 3.40 ±0.008 0.134 Dimensions in millimeters ±0.30 3.30 ±0.012 0.130 0.33 MIN 0.013 ...
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... Ordering Information Product Number Output Voltage Tolerance LM431CCZ LM431CCM LM431BCZ LM431BCM LM431ACN LM431ACZ LM431ACM LM431CIZ LM431CIM LM431BIZ LM431BIM LM431AIZ LM431AIM Package TO-92 0.5% 8-SOP TO-92 1% 8-SOP 8-DIP 2% TO-92 8-SOP TO-92 0.5% 8-SOP TO-92 1% 8-SOP TO-92 2% 8-SOP LM431A/LM431B/LM431C Operating Temperature ° -25 ~ +85 C ° - ...
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... LM431A/LM431B/LM431C DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. ...