BAT74

BAT74 STMICROELECTRONICS | Alldatasheet

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BAT74® June 1999 - Ed: 3A SMALL SIGNAL SCHOTTKY DIODE VERY SMALL CONDUCTION LOSSES NEGLIGIBLE SWITCHING LOSSES LOW FORWARD VOLTAGE DROP EXTREMELY FAST SWITCHING SURFACE MOUNT DEVICE FEATURES AND BENEFITS Two separate Schottky barrier diodes encapsu- lated in a SOT-143 small SMD package.

DESCRIPTION

Symbol Parameter Value Unit VRRM Repetitive peak reverse voltage 30 V IFRM Repetitive peak forward current δ = 0.33 0.5 A IFSM Surge non repetitive forward current (tp=10ms sinusoidal) 1 A Ptot Power Dissipation (note 1) T am b = 50°C 250 mW Tstg Maximum storage temperature range - 65 to +150 °C Tj Maximum operating junction temperature * 150 °C TL Maximum temperature for soldering during 10s 260 °C Note 1: Ptot is the total dissipation of both diodes ABSOLUTE RATINGS (limiting values) * : dPtot dTj < 1 Rth(j−a) thermal runaway condition for a diode on its own heatsink

Symbol Parameters Tests conditions Min. Typ. Max. Unit VF * Forward voltage drop Tj = 25 °CI F = 0.1 mA 240 mV IF = 1 mA 320 IF = 10 mA 400 IF = 30 mA 500 IF = 100 mA 900 IR ** Reverse leakage current Tj = 25°CV R = 30 V 1 µA Tj = 100°C 100 STATIC ELECTRICAL CHARACTERISTICS (per diode) Symbol Parameters Tests conditions Min. Typ. Max. Unit C Junction Capacitance Tj = 25°C VR = 1 V F = 1 MHz 10 pF trr Reverse Recovery Time IF = 10 mA IR = 10 mA Tj = 25°C Irr = 1 m A RL = 100 Ω 5n s DYNAMIC CHARACTERISTICS (Tj = 25 °C) 0.05 0.10 0.15 0.20 0.25 0.30 IF(av) (A) PF(av)(W) T δ=tp/T tp δ = 1 δ = 0.05 Fig.1 : Average forward power dissipation versus average forward current. 0 25 50 75 100 125 1500.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 0.18 0.20 Tamb(°C) IF(av)(A) T δ=tp/T tp Fig.2 : Average forward current versus ambient temperature ( δ = 0.33). Symbol Parameter Value Unit R th (j-a) Junction to Ambient (*) 400 °C/W (*) Mounted on epoxy board with recommended pad layout. THERMAL RESISTANCE Pulse test: * tp = 380 µs, δ < 2% ** tp = 5 ms, δ < 2% BAT74

1E-3 1E-2 1E-1 1E+00.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 t(s) IM(A) Ta=25°C Ta=100°C Ta=50°C IM t δ=0.5 Fig.3 : Non repetitive surge peak forward current versus overload duration (maximum values). 0 5 10 15 20 25 301E-2 1E-1 1E+0 1E+1 1E+2 VR(V) IR(µA) Tj=50°C Tj=25°C Tj=100°C Fig.5 : Reverse leakage current versus reverse voltage applied (typical values). 1E-3 1E-2 1E-1 1E+0 1E+1 1E+21E-3 1E-2 1E-1 1E+0 tp(s) Zth(j-a)/Rth(j-a) T δ=tp/T tp Single pulse δ = 0.1 δ = 0.2 δ = 0.5 Fig.4 : Relative variation of thermal impedance junction to case versus pulse duration (alumine substrate 10mm x 8mm x 0.5mm). 0 25 50 75 100 125 1501E-2 1E-1 1E+0 1E+1 1E+2 1E+3 1E+4 Tj(°C) IR(µA) VR=30V Fig.6 : Junction capacitance versus reverse voltage applied. 12 5 1 0 2 0 3 01 VR(V) C(pF) F=1MHz Tj=25°C Fig.7 : Junction capacitance versus reverse voltage applied (typical values). 1E-3 1E-2 1E-1 5E-1 VFM(V) IFM(A) Tj=100°C Tj=50°C Tj=25°C Fig.8 : Forward voltage drop versus forward current (typical values). BAT74

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 ap- proval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics © 1999 STMicroelectronics - Printed in Italy - All rights reserved. STMicroelectronics GROUP OF COMPANIES Australia - Brazil - China - Finland - France - Germany - Hong Kong - India - Italy - Japan - Malaysia Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - U.S.A. http://www.st.com PACKAGE MECHANICAL DATA SOT-143 A L C D EH e2 b REF. DIMENSIONS Millimeters Inches A 0.89 1.12 0.350 0.441 A1 0.013 0.1 0.005 0.039 B 0.76 0.94 0.299 0.370 B1 0.37 0.51 0.146 0.201 C 0.085 0.18 0.033 0.071 D 2.8 3.04 1.102 1.197 E 1.2 1.4 0.472 0.551 e1 1.92 BSC 0.756 BSC e2 0.2 BSC 0.0787 BSC H 2.1 2.64 0.827 1.039 S 0.55 ref 0.217 ref 1.92 0.95 2.25 1.1 0.65 0.2 FOOTPRINT DIMENSIONS (in millimeters) Ordering type Marking Package Weight Base qty Delivery mode BAT74 D89 SOT-143 0.01g 3000 Tape & reel Epoxy meets UL94,V0 BAT74