TABLE 1: ELECTRICAL SPECIFICATIONS AT 25 O C FIGURE 1: SCHEMATIC DIAGRAM SWITCHING TRANSFORMER DESIGNED FOR USE WITH POWER INTEGRATIONS TOP246. PARAMETER MIN. PRIMARY INDUCTANCE (3-1) VOLTAGE = 0.250Vrms FREQUENCY = 100 KHZ 260 SPEC LIMITS TYP. 290 MAX. UNITS 320 µHY WHITE DOT ON BOBBIN DENOTES PIN #1 1 11,12 PRIMARY 3 TURN RATIO'S: SEC (11,12-7,8) : PRIMARY (3-1) BIAS (6-5) : PRIMARY (3-1) PRI LEAKAGE IND. (SEC SHORTED) VOLTAGE = 0.250Vrms FREQUENCY = 100 KHZ HIPOT: PRIMARY TO SECONDARY BIAS TO SECONDARY FIGURE 3A CIRCUIT PARAMETERS: (1) AC LINE VOLTAGE 47/400 Hz OUTPUT VOLTAGE OUTPUT CURRENT CONTINUOUS OUTPUT CURRENT PEAK LINE REGULATION (85 TO 265Vac) LOAD REGULATION 10-100% RIPPLE --------------- 1:5.5 1:7.333 --------------- + 3% + 3% -------- -------- 15 µHY 4000 4000 --------------- --------------- Vrms Vrms 175 -------24.0 --------------0.20 0.20 50.0 265 Vac Vdc Amps Amps +% +% +mV 0.0 ----------------------------- 3.60 3.75 ---------------------- SECONDARY 5 7,8 BIAS 6 SECONDARY PINS #12 & 11, #8 & 7 MUST BE RESPECTIVELY CONNECTED TOGETHER FOR PROPER OPERATION. I.E. CONNECTED AS ONE PARALLEL WINDING. NOTE1: A) ALL MATERIALS MEET "UL", "CSA" & "IEC" REQUIREMENTS B) TRIPLE BASIC INSULATED SECONDARY. C) DESIGNED TO MEET >6mm CREEPAGE REQUIREMENTS. E) VARNISH FINISHED ASSEMBLY. FIGURE 2: PHYSICAL DIMENSIONS mm (INCHES) 12 11 10 9 8 7 P TSD-1693 M YYWW PIN #1 WHITE DOT 1 2 3 4 5 6 31.50 (1.240) MAX CORE TAPED 26.50 (1.043) MAX UL INSULATION SYMBOL AND MANUFACTURER IDENTIFICATION HERE 29.46 (1.160) MAX 1 2 3 5.00 (.197) 4 5 25.00 (.984) 0.8 DIA. (.032) 6 4.0 (.157) MIN UNLESS OTHERWISE SPECIFIED DIMENSIONS ARE IN MM DIMENSIONAL TOLERANCES ARE: DECIMALS ANGLES .X + .25 + 0 O 30' .XX + .15 DO NOT SCALE DRAWING 20.0 (.787) REV. 10/04/01 06/08/05 DESCRIPTION OF CHANGES ORIGINAL RELEASE UPDATED RELEASE TRANSFORMER CONTROL DRAWING PREMIER P/N: TSD-1693 REVISION: 06/08/05 DRAWN BY: PETER PHAM REF:TOP246 SCALE: NONE SHEET: 1 OF 3 BY PP LL