SST502 SST504 SST506 SST508 SST510 SST503 SST505 SST507 SST509 SST511

Vishay Siliconix Current Regulator Diodes-POV(min) 45 V SST502 SST504 SST506 SST508 SST510 SST503 SST505 SST507 SST509 SST511

SST502 SST502 Series Vishay Siliconix Current Regulator Diodes-POV(min) 45 V SST502 SST502 SST504 SST504 SST506 SST506 SST508 SST508 SST510 SST510 SST503 SST503 SST505 SST505 SST507 SST507 SST509 SST509 SST511 SST511 TO-236 (SOT-23) PRODUCT SUMMARY Anode Part Number Typ IF (mA) Marking M ki Part Number Typ IF (mA) SST502 SST502 0.43 L2 SST507 SST507 1.80 L7 SST503 SST503 0.56 L3 SST508 SST508 2.40 L8 SST504 SST504 0.75 L4 SST509 SST509 3.00 L9 SST505 SST505 1.00 L5 SST510 SST510 3.60 L0 SST506 SST506 1.40 L6 SST511 SST511 4.70 L1 1 Marking M ki 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 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 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 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-00640-Rev. B, 01-May-00 www.siliconix.com S FaxBack 408-970-5600 4-1 SST502 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 SPECIFICATIONSa Limits Parameter Typb Symbol Test Conditions Min Peak Operating Voltage POV IF = 1.1 IF(max)c 45 Reverse Voltage VR IR = 1 mA 0.8 Capacitance CF VF = 25 V, f = 1 MHz Max 1.5 Unit 55 V pF Regulator Currentd (IF) Dynamic Impedancee (Zd) Knee Impedance (Zk) Limiting Voltage f (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 N b P Number Min Nom Max Min Typb Typb Max Typb Typb SST502 SST502 0.344 0.43 0.516 1.0 2.7 0.7 1.5 0.6 0.08% SST503 SST503 0.448 0.56 0.672 0.7 2.0 0.5 1.7 0.7 0.12% SST504 SST504 0.600 0.75 0.900 0.5 1.5 0.4 1.9 0.8 0.16% SST505 SST505 0.800 1.00 1.200 0.4 1.0 0.3 2.1 0.9 0.20% SST506 SST506 1.120 1.40 1.680 0.3 0.8 0.2 2.5 1.1 0.24% SST507 SST507 1.440 1.80 2.160 0.2 0.6 0.12 2.8 1.3 0.28% SST508 SST508 1.900 2.40 2.900 0.1 0.4 0.08 3.1 1.5 0.31% SST509 SST509 2.400 3.00 3.600 0.09 0.3 0.06 3.5 1.7 0.34% SST510 SST510 2.900 3.60 4.300 0.08 0.3 0.04 3.9 1.9 0.37% SST511 SST511 3.800 4.70 5.600 0.07 0.2 0.03 4.2 2.1 0.40% Notes: a. TA = 25_C unless otherwise noted. b. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing. c. Max VF where IF = 1.1 IF(max) is guaranteed. d. Pulse test-steady state currents may vary. e. Pulse test-steady state impedances may vary. f. Min VF required to insure IF = 0.8 IF(min). www.siliconix.com S FaxBack 408-970-5600 4-2 NPA Document Number: 70711 S-00640-Rev. B, 01-May-00 SST502 SST502 Series Vishay Siliconix TYPICAL CHARACTERISTICS (25_C UNLESS NOTED) Output Current vs. Forward Voltage Output Current vs. Forward Voltage 5 5 SST511 SST511 SST511 SST511 4 4 SST510 SST510 SST510 SST510 3 I F (mA) I F (mA) 3 SST508 SST508 2 SST508 SST508 2 SST505 SST505 SST505 SST505 1 1 SST502 SST502 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 Z k (M W ) T C (%/ d C) 0.15 0.20 0.25 0.30 0.1 0.35 0.40 0.45 0.01 0 1 2 3 4 5 0.1 1 IF (mA) 10 IF (mA) Dynamic Impedance vs. Regulator Current 100 10 Limiting Voltage @ 0.8 IF vs. Regulator Current VF = 25 V VF = 25 V V L (V) Z d (M W ) 10 1 1 0.1 0.1 0.1 1 IF (mA) Document Number: 70711 S-00640-Rev. B, 01-May-00 10 0.1 1 10 IF (mA) www.siliconix.com S FaxBack 408-970-5600 4-3 SST502 SST502 Series Vishay Siliconix TYPICAL CHARACTERISTICS (25_C UNLESS NOTED) Temperature Coefficient vs. Regulator Current On-Resistance vs. Regulator Current 0.5 2 r DS(on) Drain-Source On-Resistance (k W ) T C (%/ 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 IF (mA) 3 4 5 IF (mA) Capacitance vs. Forward Voltage 10 C T 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.siliconix.com S FaxBack 408-970-5600 4-4 Document Number: 70711 S-00640-Rev. B, 01-May-00