LL4448

LL4148/LL4448 Surface Mount Switching Diodes P b Lead(Pb)-Free Features: *Silicon Epitaxial Planner Diode *Fast Switching Diodes *500 mW Power Dissipation Mechanical Data: *Case : MINI-MELF Glass Case (SOD-80) *Weight : Approx 0.05 gram SMALL SIGNAL SWITCHING DIODES 150 m AMPERES 100 VOLTS MINI-MELF MINI-MELF Outline Dimensions Unit:mm A B C MINI MELF Dim A B C Min 3.30 1.30 0.28 Max 3.70 1.60 0.50 http//www.weitron.com.tw WEITRON LL4148/LL4448 Maximum Ratings ( Characteristic Non-Repetitive Peak Voltage Peak Repetitive Reverse Voltage Working Peak Reverse Voltage DC Blocking Voltage Average Rectified Output Current (1) Non-Repetitive Peak Forward Surge Current @t=1.0us Power Dissipation Thermal Resistance Junction to Ambient Operating and Strorage Temperature Range TA=25 C Unless otherwise noted) Symbol VRM VPWM VRWM VR IO IFSM Pd R θJA TJ ,TSTG LL4148/ LL4448 100 75 150 2.0 500 300 -65 to +175 Unit V V mA A mW K/W C Electrical Characteristics Characteristic Reverse Breakdown Voltage IR= 100ua Forward Voltage IF=10 mA LL4148 LL4448 IF=5 mA IF=100 mA Leakage Current VR=20V VR=75V VR=75V, Tj=150 C Junction Capacitance Reverse Recovery Time IF=10 mA, IR=1mA, VR=6V, RL=100 Ω ( TA=25 C Unless otherwise noted) Symbol V(BR)R Min 100 Max - Unit V VF 0.62 1.0 0.72 1.0 25 5 50 4 4 V IR Cj Trr - µA PF nS Note: 1.Valid Provided that device Terminals are Kept at Ambient Temperature. http//www.weitron.com.tw WEITRON LL4148/LL4448 nA 60 Ω D.U.T. V R F =2V 2nF 5K Ω VO 103 104 RECITIFICATION EFFICIENCY MEASUREMENT CIRCUIT 102 10 VR=20V 1 0 100 200 C FIG 1, LEAKAGE CURRENT VERSUS JUNCTION TEMPERATURE A 100 V =tp /T T =1/fp IFRM 10 n=0 0.1 tp IF R M T 1 0.2 0.5 0.1 10-4 10-3 10-2 10-4 tp 10-1 1 10S FIG 2, ADMISSIBLE REPETITIVE PEAK FORWARD CURRENT VERSUS PULSE DURATION http//www.weitron.com.tw WEITRON LL4148/LL4448 mA 103 Ω 104 TJ=25 C f=1KHz 102 IF 10 TJ=100 C TJ=25 C 10 3 102 1 10-1 10-2 10 0 1 VF 2V 1 10-2 10-1 1 10 IF 102 mA FIG 3, FORWARD CHARACTERISTICS FIG 4, DYNAMIC FORWARD RESISTANCE VERSUS FORWARD CURRENT mW 1000 900 800 Ptot 700 600 500 400 300 200 100 0 0 100 TA 200 C 1.1 TJ=25 C f=1MHz Ctot(VR) Ctot(DV) 1.0 0.9 0.8 0.7 0 2 4 6 8 VR 10 V FIG 5, ADMISSIBLE POWER DISSIPATION VERSUS AMBIENT TEMPERATURE FIG 6, RELATIVE CAPACITANCE VERSUS VOLTAGE http//www.weitron.com.tw WEITRON