LL103A

LL103A...LL103C SILICON SCHOTTKY BARRIER DIODES for general purpose applications The LL103A, B, C is a metal on Silicon Schottky barrier device which is protected by a PN junction guard ring. The low forward voltage drop and fast switching make it ideal for protection of MOS devices, steering, biasing and coupling diodes for fast switching and low logic level applications. Other uses are for click suppression, efficient full wave bridges in telephone subsets, and as blocking diodes in rechargeable low voltage battery systems. This diode is also available in DO-35 case with type designation SD103A, B, C. Absolute Maximum Ratings (Ta = 25oC) Symbol Peak Reverse Voltage LL103A LL103B LL103C VRRM VRRM VRRM Ptot IFSM Tj TS Value 40 30 20 400 1) Unit V V V mW A O O Power Dissipation (Infinite Heatsink) Tc = 3/8 from body o o Derates at 4 mW/ C to 0 at 125 C Single Cycle Surge 60Hz sinewave Junction Temperature Storage Temperature Range 1) 15 125 -55 to +175 C C Valid provided that electrodes are kept at ambient temperature. SEMTECH ELECTRONICS LTD. (Subsidiary of Sino-Tech International Holdings Limited, a company listed on the Hong Kong Stock Exchange, Stock Code: 724) ® Dated : 07/12/2002 LL103A...LL103C Characteristics at Tamb = 25oC Symbol Forward Voltage at IF = 20mA at IF = 200mA Leakage Current at VR = 30V at VR = 20V at VR=10V Junction Capacitance at VR = 0V, f = 1MHz Reverse Recovery Time at IF = IR = 5mA to 200 mA , recover to 0.1 IR LL103A LL103B LL103C VF VF IR IR IR Ctot 50 0.37 0.6 5 5 5 V V uA uA uA pF Min. Typ. Max. Unit trr - 10 - ns SEMTECH ELECTRONICS LTD. (Subsidiary of Sino-Tech International Holdings Limited, a company listed on the Hong Kong Stock Exchange, Stock Code: 724) ® Dated : 07/12/2002 LL103A...LL103C Typical variation of fwd. current vs.fwd.voltage for primary conduction through the Schottky barrier mA 10 3 Typical high current forward conduction curve tp=300 s, duty cycle=2% A LL103 LL103 5 IF 10 2 IF 4 10 3 1 2 10 -1 1 10 -2 0 0.5 VF 1V 0 0 0.5 1 VF 1.5V Typical non repetitive forward surge current versus pulse width Rectangular pulse A 50 LL103 Typical variation of reverse current at various temperatures A 10 3 LL103 Tamb=125o C 100 oC 10 2 IF 40 IR 30 10 20 1 10 10 -1 10 -3 10 -2 10 -1 1 10 tp 10 2 103 ms 0 75 oC 50 oC 25 oC 0 10 20 30 VR 40 50V SEMTECH ELECTRONICS LTD. (Subsidiary of Sino-Tech International Holdings Limited, a company listed on the Hong Kong Stock Exchange, Stock Code: 724) ® Dated : 07/12/2002 LL103A...LL103C Blocking voltage deration versus temperature at various average forward currents V 50 LL103 Typical capacitance versus reverse voltage pF 100 7 5 4 3 2 LL103 VR 40 100 mA 30 200 mA 20 I F =400 mA Ctot 10 7 5 4 3 2 10 0 0 100 Tamb 200 C o 1 0 10 20 30 VR 40 50V SEMTECH ELECTRONICS LTD. (Subsidiary of Sino-Tech International Holdings Limited, a company listed on the Hong Kong Stock Exchange, Stock Code: 724) ® Dated : 07/12/2002