SST502 Series Vishay Siliconix Current Regulator Diodes--POV(min) 45 V SST502 SST504 SST506 SST508 SST510 SST503 SST505 SST507 SST509 SST511 TO-236 (SOT-23) PRODUCT SUMMARY Anode Part Number Typ IF (mA) Marking Part Number Typ IF (mA) Marking SST502 0.43 L2 SST507 1.80 L7 SST503 0.56 L3 SST508 2.40 L8 SST504 0.75 L4 SST509 3.00 L9 SST505 1.00 L5 SST510 3.60 L0 SST506 1.40 L6 SST511 4.70 L1 1 3 Cathode 2 * Top View *Short lead #2 to Cathode (lead #3) via circuit board trace. FEATURES BENEFITS APPLICATIONS D Surface-Mount Package D Guaranteed "20% Tolerance D Operation from 1 V (SST502, 3) to 45 V D Good Temperature Stability 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 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. SCHEMATIC DIAGRAM 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. APPLICATIONS V+ A 1 2 V+ Current Source Current Sink Out V- C 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 Power Dissipationa . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 350 mW Peak Operating Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 V Reverse Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA Notes: a. Derate 2.8 mW/_C above 25_C Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to 150_C SPECIFICATIONS (TA = 25_C) UNLESS OTHERWISE NOTED Limits Symbol Test Conditions Min Typa Peak Operating Voltageb POV IF = 1.1 IF(max) 45 55 Reverse Voltage VR IR = 1 mA 0.8 Capacitance CF VF = 25 V, f = 1 MHz 1.5 Parameter Max Unit V pF Regulator Currentc (IF) Dynamic Impedanced (Zd) Knee Impedance (Zk) Limiting Voltage e (VL) Temperature Coefficient (q1) VF = 25 V VF = 25 V VF = 6 V IF = 0.8 IF(min) VF = 25 V 0_C v TA v 100_C mA MW MW V %/_C Part Number Min Nom Max Min Typa Typa Max Typa Typa SST502 0.344 0.43 0.516 1.0 2.7 0.7 1.5 0.6 -0.08 SST503 0.448 0.56 0.672 0.7 2.0 0.5 1.7 0.7 -0.12 SST504 0.600 0.75 0.900 0.5 1.5 0.4 1.9 0.8 -0.16 SST505 0.800 1.00 1.200 0.4 1.0 0.3 2.1 0.9 -0.20 SST506 1.120 1.40 1.680 0.3 0.8 0.2 2.5 1.1 -0.24 SST507 1.440 1.80 2.160 0.2 0.6 0.12 2.8 1.3 -0.28 SST508 1.900 2.40 2.900 0.1 0.4 0.08 3.1 1.5 -0.31 SST509 2.400 3.00 3.600 0.09 0.3 0.06 3.5 1.7 -0.34 SST510 2.900 3.60 4.300 0.08 0.3 0.04 3.9 1.9 -0.37 SST511 3.800 4.70 5.600 0.07 0.2 0.03 4.2 2.1 -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). www.vishay.com 3-2 NPA 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 Output Current vs. Forward Voltage 5 5 SST511 SST511 4 4 SST510 SST510 3 IF (mA) IF (mA) 3 SST508 2 SST508 2 SST505 SST505 1 1 SST502 SST502 0 0 0 1 2 3 4 5 0 10 V F (V) 20 30 40 50 V F (V) Temperature Coefficient Knee Impedance vs. Regulator Current 10 -0.00 VF = 6 V -0.05 -0.10 1 -0.20 Zk (M ) TC (% _C) -0.15 -0.25 -0.30 0.1 -0.35 -0.40 -0.45 0.01 0 1 2 3 4 5 0.1 1 10 IF (mA) IF (mA) Dynamic Impedance vs. Regulator Current 100 10 Limiting Voltage @ 0.8 IF vs. Regulator Current VF = 25 V VF = 25 V VL (V) Zd (M ) 10 1 1 0.1 0.1 0.1 1 IF (mA) Document Number: 70711 S-04234--Rev. C, 02-Jul-01 10 0.1 1 10 IF (mA) www.vishay.com 3-3 SST502 Series Vishay Siliconix TYPICAL CHARACTERISTICS (TA = 25_C UNLESS OTHERWISE NOTED) Temperature Coefficient vs. Regulator Current On-Resistance vs. Regulator Current 0.5 2 rDS(on) - Drain-Source On-Resistance ( ) TC (% _C) VF = 25 V 0 TJ = 0 to 100_C -0.5 I = 0.1 IF VF = 25 V 1 0 0.1 1 10 0 2 1 3 4 5 IF (mA) IF (mA) Capacitance vs. Forward Voltage 10 CT - Total Capacitance (pF) f = 1 MHz 5 0 10 0 20 30 40 50 VF (V) CURRENT REGULATOR DIODE V1 CHARACTERISTIC IF rDS Zk IF POV VL VR VF VR IR www.vishay.com 3-4 Document Number: 70711 S-04234--Rev. C, 02-Jul-01 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