TABLE 1: ELECTRICAL SPECIFICATIONS AT 25 OC FIGURE 1: SCHEMATIC DIAGRAM SWITCHING TRANSFORMER DESIGNED FOR USE WITH POWER INTEGRATIONS PWR-TOP249Y. PARAMETER MIN. SPEC LIMITS TYP. PRIMARY INDUCTANCE (3-1) VOLTAGE = 0.250Vrms FREQUENCY = 100 KHZ 170 190 1 MAX. UNITS 210 HY 11 ([email protected]) 10 PRIMARY 1A 2 SECONDARY #1 PRIMARY 1B 3 TURN RATIO'S: SEC (10,11-8,9) : PRIMARY (3-1) SEC (10,11-7) : PRIMARY (3-1) BIAS (5-6) : PRIMARY (3-1) 8,9 ([email protected]) 5 ---------------------- 1:5.67 1:4.25 1:6.8 ---------------------- + 4% + 4% + 4% -------- -------- 7 HY 3000 3000 --------------- --------------- Vrms Vrms 85 -------5 -------24 -------- 265 Vac Vdc Amps Vdc Amps BIAS 6 PRI LEAKAGE IND. (SEC SHORTED) VOLTAGE = 0.250Vrms FREQUENCY = 100 KHZ HIPOT: PRIMARY TO SECONDARIES BIAS TO SECONDARIES FIGURE 3 CIRCUIT PARAMETERS: AC LINE VOLTAGE 47/400 Hz (*) OUTPUT VOLTAGE OUTPUT CURRENT CONTINUOUS OUTPUT VOLTAGE OUTPUT CURRENT CONTINUOUS 0.10 0.10 3.0 3.5 SECONDARY #2 7 NOTE1: REINFORCED INSULATION SYSTEM, UL1950, IEC950, CSA-950: A) ALL MATERIALS MEET "UL", "CSA" & "IEC" REQUIREMENTS B) TRIPLE BASIC INSULATED SECONDARY. C) DESIGNED TO MEET >6.2mm CREEPAGE REQUIREMENTS. D) VARNISH FINISHED ASSEMBLY. (*) AC line input may apply from 85V-305V FIGURE 2: PHYSICAL DIMENSIONS mm (INCHES) 12 11 10 9 8 7 P TSD-2645 M YYWW PIN #1 WHITE DOT 1 2 3 4 5 6 34.30 (1.350) MAX CORE TAPED 29.00 (1.142) MAX 32.00 (1.260) MAX 0.8 DIA. (.032) 1 2 3 5.00 (.197) 4 5 6 4.0 (.157) MIN 22.5 (.886) REV. 02/17/09 25.00 (.984) DESCRIPTION OF CHANGES ORIGINAL RELEASE UPDATE NOTE ON INPUT VOLTAGE RoHS P M UNLESS OTHERW ISE SPECIFIED DIMENSIONS ARE IN MM DIMENSIONAL TOLERANCES ARE: DECIMALS ANGLES .X + .25 +0 O 30' .XX + .15 DO NOT SCALE DRAWING FLYBACK TRANSFORMER CONTROL DRAWING PREMIER P/N: TSD-2645 REVISION: 02/17/09 DRAWN BY: PETER PHAM REF: PWR-TOP249 SCALE: NONE SHEET: 1 OF 2 BY PP APPLICATION NOTES Premier Magnetics TSD-2645 Switch Mode Transformer was designed for use with Power Integrations, Inc. PWRTOP249. Premiers TSD-2645transformer has been optimized to provide maximum power throughput. These switching regulators provide a very simple solution to off-line designs. The inductors and transformer used with the PWR-TOPXXX are critical to the performance of the circuit. They define the overall efficiency, output power and overall physical size. Below is a universal input high precision 99 watt application circuit utilizing Power Integrations PWR-TOP249 switching regulator in the flyback buck-boost configuration. The component values listed are intended for reference purposes only. Properly sized heat sinks for the TOP249Y, D3 & D4 as well as proper thermal management & board layout are critical requirements for efficient and reliable operation. FIGURE 3: TYPICAL APPLICATION CIRCUIT (85-265Vac INPUT) NEED TO ADUST INPUT COMPONENT & CLAMP FOR INPUT 305Vac F1 3.1A 250v LINE BR1 DF06M 600V, 1A EMI FILTER 1 L1 PMCE-0056 5.6mHY ~ 2 D4 BYW29-200 + C1 270 uF 400V + 85-265Vac 50/60Hz NEUT C6 0.1uF 4 3 ~ L3 VTP-05002 40uH @ 4.0A +24Vdc @ 3.5A 10,11 C9 1200uF 50V - + C10 470uF 50V + C6 = 0.1uF 250Vac X2-Saftey Cap D3 SF51 CLAMP NETWORK C2 6.8nF 13K +5Vdc @ 3A 8,9 1 P6KE200A L2 VTP-05002 40uH @ 4.0A R3 4.99K 1% C6, C7 + 3300uF 25V PRI D1 BYV26D R4 4.99K 1% 7 3 T1 TSD-2645 R2 0.118K 5 BIAS C8 470uF 25V RTN D2 1N4148 2.0M + C5 0.1uF 6 L D TOP249YN S X U3 NEC2501-H C 6.81 F 1 U2 C TL431 R + C3 47uF A C4 680nF 8 6 HIGH VOLTAGE RETURN P M UNLESS OTHERW ISE SPECIFIED DIMENSIONS ARE IN MM DIMENSIONAL TOLERANCES ARE: DECIMALS ANGLES .X + .25 +0 O 30' .XX + .15 DO NOT SCALE DRAWING FLYBACK TRANSFORMER CONTROL DRAWING PREMIER P/N: TSD-2645 REVISION: 02/17/09 DRAWN BY: PETER PHAM REF: PWR-TOP249 SCALE: NONE SHEET: 2 OF 2