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SST502 Series Vishay Siliconix Current Regulator Diodes--POV(min) 45 V SST502 SST503 SST504 SST505 SST506 SST507 SST508 SST509 TO-236 (SOT-23) SST510 SST511 PRODUCT SUMMARY Part Number SST502 SST503 SST504 SST505 SST506 Typ IF (mA) 0.43 0.56 0.75 1.00 1.40 Marking L2 L3 L4 L5 L6 Part Number SST507 SST508 SST509 SST510 SST511 Typ IF (mA) 1.80 2.40 3.00 3.60 4.70 Anode 1 3 Cathode Marking L7 L8 L9 L0 L1 Top View * 2 *Short lead #2 to Cathode (lead #3) via circuit board trace. FEATURES D Surface-Mount Package D Guaranteed "20% Tolerance D Operation from 1 V (SST502, 3) to 45 V D Good Temperature Stability BENEFITS D Simple Series Circuitry, No Separate Voltage Source D Tight Guaranteed Circuit Performance D Excellent Performance in Low-Voltage/Battery Circuits and High-Voltage Spike Protection D High Circuit Stability vs. Temperature APPLICATIONS D Constant-Current Supply D Current-Limiting D Timing Circuits DESCRIPTION The SST502 series is a family of "20% range current regulators designed for demanding applications in test equipment and instrumentation. These devices utilize the JFET techniques to produce a device which is extremely simple to operate. With nominal current ranges from 0.43 mA to 4.7 mA, the SST502 series will meet a wide array of design requirements. The low-cost TO-236 surface-mount package ensures a cost-effective design solution. SCHEMATIC DIAGRAM APPLICATIONS A 1 V+ Current Sink V+ Out 2 C Current Source V- Linear Ramp Generator Document Number: 70711 S-04234--Rev. C, 02-Jul-01 www.vishay.com 3-1 SST502 Series Vishay Siliconix ABSOLUTE MAXIMUM RATINGS Peak Operating Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 V Reverse Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to 150_C Power Dissipationa . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 350 mW Notes: a. Derate 2.8 mW/_C above 25_C SPECIFICATIONS (TA = 25_C) UNLESS OTHERWISE NOTED Limits Parameter Symbol Test Conditions Min Typa Max Unit Peak Operating Voltageb Reverse Voltage Capacitance POV VR CF IF = 1.1 IF(max) IR = 1 mA VF = 25 V, f = 1 MHz 45 55 V 0.8 1.5 pF Regulator Currentc (IF) VF = 25 V Dynamic Impedanced (Zd) VF = 25 V Knee Impedance (Zk) VF = 6 V Limiting Voltage e (VL) IF = 0.8 IF(min) Temperature Coefficient (q1) VF = 25 V 0_C v TA v 100_C mA Part Number SST502 SST503 SST504 SST505 SST506 SST507 SST508 SST509 SST510 SST511 MW Max 0.516 0.672 0.900 1.200 1.680 2.160 2.900 3.600 4.300 5.600 MW Typa 2.7 2.0 1.5 1.0 0.8 0.6 0.4 0.3 0.3 0.2 V Max 1.5 1.7 1.9 2.1 2.5 2.8 3.1 3.5 3.9 4.2 %/_C Typa 0.6 0.7 0.8 0.9 1.1 1.3 1.5 1.7 1.9 2.1 Min 0.344 0.448 0.600 0.800 1.120 1.440 1.900 2.400 2.900 3.800 Nom 0.43 0.56 0.75 1.00 1.40 1.80 2.40 3.00 3.60 4.70 Min 1.0 0.7 0.5 0.4 0.3 0.2 0.1 0.09 0.08 0.07 Typa 0.7 0.5 0.4 0.3 0.2 0.12 0.08 0.06 0.04 0.03 Typa -0.08 -0.12 -0.16 -0.20 -0.24 -0.28 -0.31 -0.34 -0.37 -0.40 Notes: a. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing. b. Max VF where IF = 1.1 IF(max) is guaranteed. c. Pulse test--steady state currents may vary. d. Pulse test--steady state impedances may vary. e. Min VF required to insure IF = 0.8 IF(min). NPA www.vishay.com 3-2 Document Number: 70711 S-04234--Rev. C, 02-Jul-01 SST502 Series Vishay Siliconix TYPICAL CHARACTERISTICS (TA = 25_C UNLESS OTHERWISE NOTED) Output Current vs. Forward Voltage 5 SST511 4 SST510 3 IF (mA) SST508 2 SST505 1 SST502 0 0 1 2 V F (V) 3 4 5 0 0 10 20 V F (V) 30 40 50 1 SST502 IF (mA) 3 SST508 2 SST505 4 5 SST511 SST510 Output Current vs. Forward Voltage Temperature Coefficient -0.00 -0.05 -0.10 -0.15 TC (% _C) Zk (M ) -0.20 -0.25 -0.30 -0.35 -0.40 -0.45 0 1 2 IF (mA) 3 4 5 0.01 0.1 1 10 Knee Impedance vs. Regulator Current VF = 6 V 0.1 1 IF (mA) 10 Dynamic Impedance vs. Regulator Current 100 VF = 25 V 10 Limiting Voltage @ 0.8 IF vs. Regulator Current VF = 25 V 10 Zd (M ) VL (V) 1 0.1 0.1 1 IF (mA) 10 1 0.1 0.1 1 IF (mA) 10 Document Number: 70711 S-04234--Rev. C, 02-Jul-01 www.vishay.com 3-3 SST502 Series Vishay Siliconix TYPICAL CHARACTERISTICS (TA = 25_C UNLESS OTHERWISE NOTED) Temperature Coefficient vs. Regulator Current 0.5 VF = 25 V rDS(on) - Drain-Source On-Resistance ( ) 2 I = 0.1 IF VF = 25 V On-Resistance vs. Regulator Current TC (% _C) 0 1 TJ = 0 to 100_C -0.5 0.1 1 IF (mA) 10 0 0 1 2 IF (mA) 3 4 5 Capacitance vs. Forward Voltage 10 f = 1 MHz CT - Total Capacitance (pF) 5 0 0 10 20 VF (V) 30 40 50 CURRENT REGULATOR DIODE V 1 CHARACTERISTIC IF rDS VL VR VR VF POV Zk IF IR www.vishay.com Document Number: 70711 S-04234--Rev. C, 02-Jul-01 3-4 Legal Disclaimer Notice Vishay Notice Specifications of the products displayed herein are subject to change without notice. Vishay Intertechnology, Inc., or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies. Information contained herein is intended to provide a product description only. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay's terms and conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications. Customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Vishay for any damages resulting from such improper use or sale. Document Number: 91000 Revision: 08-Apr-05 www.vishay.com 1 |
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