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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 M ki 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 M ki 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-00640--Rev. B, 01-May-00 www.siliconix.com S FaxBack 408-970-5600 4-1 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 SPECIFICATIONSa Limits Parameter Symbol Test Conditions Min Typb Max Unit Peak Operating Voltage Reverse Voltage Capacitance POV VR CF IF = 1.1 IF(max)c IR = 1 mA VF = 25 V, f = 1 MHz 45 55 V 0.8 1.5 pF Regulator Currentd (IF) VF = 25 V Dynamic Impedancee (Zd) VF = 25 V Knee Impedance (Zk) VF = 6 V Limiting Voltage f (VL) IF = 0.8 IF(min) Temperature Coefficient (q1) VF = 25 V 0_C v TA v 100_C mA Part N b P 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 Typb 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 Typb 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 Typb 0.7 0.5 0.4 0.3 0.2 0.12 0.08 0.06 0.04 0.03 Typb -0.08% -0.12% -0.16% -0.20% -0.24% -0.28% -0.31% -0.34% -0.37% -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 NPA 4-2 Document Number: 70711 S-00640--Rev. B, 01-May-00 SST502 Series Vishay Siliconix TYPICAL CHARACTERISTICS (25_C UNLESS NOTED) Output Current vs. Forward Voltage 5 SST511 4 SST510 3 I F (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 I F (mA) 3 SST508 2 SST505 4 5 SST511 SST510 Output Current vs. Forward Voltage Temperature Coefficient -0.00 -0.05 -0.10 -0.15 T C (%/ d C) -0.20 -0.25 -0.30 -0.35 -0.40 -0.45 0 1 2 IF (mA) 3 4 5 0.01 0.1 Z k (M W ) 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 Z d (M W ) V L (V) 1 0.1 0.1 1 IF (mA) 10 1 0.1 0.1 1 IF (mA) 10 Document Number: 70711 S-00640--Rev. B, 01-May-00 www.siliconix.com S FaxBack 408-970-5600 4-3 SST502 Series Vishay Siliconix TYPICAL CHARACTERISTICS (25_C UNLESS NOTED) Temperature Coefficient vs. Regulator Current 0.5 r DS(on) - Drain-Source On-Resistance (k W ) VF = 25 V 2 I = 0.1 IF VF = 25 V On-Resistance vs. Regulator Current _ T C (%/ 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 C T - 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.siliconix.com S FaxBack 408-970-5600 Document Number: 70711 S-00640--Rev. B, 01-May-00 4-4 |
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