STDD15 series ® LOW CAPACITANCE DETECTION DIODE MAIN PRODUCT CHARACTERISTICS IF(AV) 10 mA VRRM 15 V Tj (max) 150 °C VF (max) 0.51 V ■ ■ ■ ■ ■ SOT323-6L STDD15-xxS SOT323-3L STDD15-xxW FEATURES AND BENEFITS Low diode capacitance Device designed for RF application Low profile package Available in 3 configurations Very low parasitic inductor & resistor SCHEMATIC DIAGRAM 1 3 DESCRIPTION The STDD15 is a dual diode series for the detection of a RF signal and the compensation of the voltage drift with the temperature. The SOT323 package makes the device ideal in application where the space saving is critical like mobile phones. The low junction capacitance will reduce the disturbance on the RF signal Series configuration STDD15-04W 2 1 4 2 5 3 6 Parallel configuration STDD15-07S 1 3 Common cathode configuration STDD15-05W 2 ABSOLUTE RATINGS (limiting values) Symbol VRRM IF Parameter Value Unit Repetitive peak reverse voltage 15 V Continuous forward current 10 mA 2 A - 65 + 150 °C 150 °C IFSM Surge non repetitive forward current Tstg Storage temperature range Tj tp = 10ms Maximum operating junction temperature August 2002 - Ed: 3A 1/6 STDD15 series THERMAL PARAMETERS Symbol Rth (j-a)* Parameter Junction to ambient Value Unit 500 °C/W *: Mounted with minimum recommended pad size, PC board FR4. STATIC ELECTRICAL CHARACTERISTICS Symbol IR* Parameter Reverse leakage current Tests conditions Tj = 25°C Min. VR = 1V Tj = 125°C Tj = 25°C 6 VR = 15V Forward voltage drop Tj = 25°C IF = 1 mA Tj = 125°C Tj = 25°C Max. Unit 0.035 µA 30 0.23 Tj = 125°C V F* Typ. IF = 10 mA Tj = 125°C 10 100 350 380 230 260 500 570 450 510 µA mV * Pulse test: tp ≤ 250µs, Delta ≤ 2% ELECTRICAL CHARACTERISTICS Symbol 2/7 Parameter Tests conditions C Diode capacitance VR = 0 V F = 1MHz RF Forward resistance IF = 5 mA F = 100MHz Ls Series inductance Min. Typ. Max. Unit 1.0 pF 15 Ω 1.5 nH STDD15 series Fig. 1: Forward voltage drop versus forward current (typical values). Fig. 2: Reverse leakage current versus reverse voltage applied (typical values). IFM(mA) IR(µA) 1.E+02 1.E+02 Tj=125°C 1.E+01 1.E+01 Tj=85°C 1.E+00 Tj=125°C 1.E-01 1.E+00 Tj=25°C Tj=85°C 1.E-02 Tj=25°C Tj=-40°C VFM(V) VR(V) 1.E-03 1.E-01 0.0 0.2 0.4 0.6 0.8 1.0 Fig. 3: Differential forward resistance versus forward current (typical values). 100 0.0 1.2 2.5 5.0 7.5 10.0 12.5 15.0 Fig. 4: Junction capacitance versus reverse voltage applied (typical values). RF(Ω) C(pF) 1.0 F=10kHz Tj=25°C F=1MHz Vosc=30mVRMS Tj=25°C 0.9 0.8 0.7 0.6 10 0.5 0.4 0.3 0.2 IF(mA) 0.1 1 VR(V) 0.0 1.0 10.0 100.0 Fig. 5: Variation of thermal impedance junction to ambient versus pulse duration (printed circuit board, epoxy FR4). 0.0 2.5 5.0 7.5 10.0 12.5 15.0 Fig. 6: Thermal resistance junction to ambient versus copper surface under each lead (printed circuit board, epoxy FR4).. Zth(j-a)(°C/W) Rth(j-a) 600 1000.0 550 500 450 100.0 400 350 tp(s) S(mm²) 300 10.0 1.E-02 1.E-01 1.E+00 1.E+01 1.E+02 0 5 10 15 20 25 30 35 40 45 50 3/6 STDD15 series Electrical Model (PSPICE) Parameter Value Unit Is 2.66 e-8 A N 1.04 M 0.772 Vj 0.65 V Eg 0.69 eV Xti 2 Rs 15 W Cjo 0.85 e-12 F Bv 20 V Ibv 10 e-3 A PACKAGE MECHANICAL DATA SOT323-3L DIMENSIONS REF. A Millimeters Min. A1 D b L H E θ c e FOOTPRINT (in millimeters) 0.95 4/6 0.50 2.9 1 0.8 Typ. Max. Inches Min. Typ. Max. A 0.8 1.1 0.031 0.043 A1 0.0 0.1 0.0 0.004 b 0.25 0.4 0.010 0.016 c 0.1 0.26 0.004 0.010 D 1.8 2.0 2.2 E 1.15 1.25 1.35 0.045 0.049 0.053 e 0.071 0.079 0.086 0.65 0.026 H 1.8 2.1 2.4 0.071 0.083 0.094 L 0.1 0.2 0.3 0.004 0.008 0.012 θ 0 30° 0 30° STDD15 series PACKAGE MECHANICAL DATA SOT323-6L DIMENSIONS A A2 REF. A1 D e e L E HE c b Inches Min. Max. Min. Max. A 0.8 1.1 0.031 0.043 A1 0 0.1 0 0.004 A2 0.8 1 0.031 0.039 b 0.15 0.3 0.006 0.012 c 0.1 0.18 0.004 0.007 D 1.8 2.2 0.071 0.086 E 1.15 1.35 0.045 0.053 e Q1 Millimeters 0.65 Typ. 0.025 Typ. HE 1.8 2.4 0.071 0.094 Q1 0.1 0.4 0.004 0.016 L 0.1 0.45 0.004 0.018 FOOTPRINT (in millimeters) 0.3mm 1mm 2.9mm 1mm 0.35mm Note: The device fulfills the MSL level 1 after leadfree soldering profile. Ordering code Marking Package Weight Base qty Delivery mode STDD15-04W 24 SOT323-3L 0.006 g 3000 Tape & reel STDD15-05W 25 SOT323-3L 0.006 g 3000 Tape & reel STDD15-07S D25 SOT323-6L 0.006 g 3000 Tape & reel 5/6 STDD15 series Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics © 2002 STMicroelectronics - Printed in Italy - All rights reserved. STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - Finland - France - Germany Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Singapore Spain - Sweden - Switzerland - United Kingdom - United States. http://www.st.com 6/6