NEW PRODUCT NEW PRODUCT NEW PRODUCT IDB31 PLANAR SILICON BIDIRECTIONAL TRIGGER DIODE SOT-23 FEATURES ¨ Intend for use in triac and thyristors circuits ¨ VBO: 30V to 34V ¨ Excellent Breakover Voltage Symmetry: typ. 1% ¨ Low Breakover Current: 20µA typ. ¨ Marking: B31 ¨ Bidirectional Operation: Pin 2 and 3 connected to the circuit Pin 1 has to stay open .122 (3.1) .118 (3.0) .016 (0.4) Top View .056 (1.43) .052 (1.33) 3 1 .016 (0.4) .045 (1.15) .037 (0.95) .007 (0.175) .005 (0.125) .037(0.95) .037(0.95) max. .004 (0.1) 2 .102 (2.6) .094 (2.4) .016 (0.4) IMPORTANT Do not connect Pin 1 to ground, VCC or any signal lines. Pin 1 has to be soldered at a solderpad without any further lines 1 MECHANICAL DATA Top View 2 3 Case: SOT-23 Plastic Package Weight: approx. 0.008g Marking code: B31 Dimensions in inches and (millimeters) MAXIMUM RATINGS In accordance with the Absolut Maximum Rating System (IEC 134). SYMBOL VALUE UNIT Power dissipation Ptot 150 (NOTE 1) mW Repetitive peak on-state current tp=20µs, f=100Hz ITRM 2 Amps Operating junction temperature range at tp < 1 s, Tamb = 25 ¡C TJ -40 to +125 ¡C Storage temperature range TS -40 to +125 ¡C RthA 400 (NOTE 1) ¡C/W Thermal resistance junction to ambient air NOTES: (1) Device on fiberglass substrate, see layout in Fig. 4 1/15/99 ELECTRICAL CHARACTERISTICS at Tj = 25 ¡C, unless otherwise specified; electrical characteristics applicable in both, forward and reverse direction SYMBOL MIN. TYP. MAX. UNIT VBO 30 32 34 Volts Breakover Voltage Symmetry see Fig. 1 ½VBO1½-½VBO2½ - - ±2 Volts Dynamic Breakback Voltage (IBO to IF=10mA), see Fig. 1 ½DV½ 5 8 - Volts Output Voltage see Fig. 2 VO 5 - - Volts Breakover Current see Fig. 1 IBO 4 20 50 mA Rise time see Fig. 3 tr - 100 - ns Leakage current VB=0,5·VBO max. see Fig. 1 IB - - 0.5 mA Breakover Voltage see Fig. 1 FIG. 1 - CURRENT-VOLTAGE CHARACTERISTICS +I F 10mA I BO -V +V IB 0.5 VBO DV VBO1 VBO2 -I F RATINGS AND CHARACTERISTIC CURVES IDB31 FIG. 3 - TEST CIRCUIT SEE FIG. 1 ADJUST R FOR IP=0.5A FIG. 2 - TEST CIRCUIT IDB31 IP 90% 10k½ 500k½ 220V 50Hz IP R=20½ VO 0.1mF 10% Ir FIG. 4 - Layout for Rth test Dimensions in mm Thickness: Fiberglass 1.5mm Cu leads 0.3mm FIG. 5 - ADMISSIBLE POWER DISSIPATION VERSUS AMBIENT TEMPERATURE 200 Ptot (mW) 0.30 (7.5) 0.12 (3) .04 (1) 100 .08 (2) 50 .04 (1) .08 (2) 0.59 (15) 150 0 0.03 (0.8) 0 200 100 Tamb (¡C) 0.47 (12) 0.2 (5) FIG. 6 - RELATIVE VARIATION OF VBO vs. Tj 34 0.06 (1.5) 33 0.20 (5.1) 32 VBO 31 30 29 28 27 26 0 25¡C 50¡C 75¡C Ta 100¡C 125¡C