FIGURE 1: SCHEMATIC DIAGRAM TABLE 1: ELECTRICAL SPECIFICATIONS AT 25 OC WHITE DOT ON BOBBIN DENOTES PIN #1 1 SWITCHING TRANSFORMER DESIGNED FOR USE WITH POWER INTEGRATIONS TOP226Y. REFER TO APPLICATION CIRCUITS OF FIGURE 3. PARAMETER MIN. SPEC LIMITS TYP. PRIMARY INDUCTANCE (3-1) VOLTAGE = 0.250Vrms FREQUENCY = 100 KHZ 540 600 MAX. UNITS 660 µHY PRIMARY 3 11,12 SECONDARY 5 TURN RATIO'S: SEC (11,12-7,8) : PRIMARY (3-1) BIAS (5-6) : PRIMARY (3-1) PRI LEAKAGE IND. (SEC SHORTED) VOLTAGE = 0.250Vrms FREQUENCY = 100 KHZ HIPOT TEST 50/60 HZ, 1 Minute Min. 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 --------------- 1:4.625 1:7.333 --------------- + 3% + 3% -------- 15.0 20.0 µHY 3750 3750 --------------- --------------- Vrms Vrms 85 -------24.0 --------------0.20 0.20 50.0 265 Vac Vdc Amps Amps +% +% +mV 0.0 ----------------------------- 2.00 2.50 ---------------------- 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: 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. E) UL1950 & CSA-950 CERTIFIED: FILE #E162344. F) UL CLASS (B) 130 INSULATION SYSTEM PM130-R1, PM130-H1, PM130-H1A (UL FILE #E177139) OR ANY UL AUTHORIZED CLASS (B) INSULATION SYSTEM. (1) REFER TO APPLICATION CIRCUIT OF FIGURE 3. FIGURE 2: PHYSICAL DIMENSIONS mm (INCHES) 12 11 10 9 8 7 P POL-24020 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 29.00 (1.142) MAX 1 2 3 5.00 (.197) 4 5 0.8 DIA. (.032) 6 25.00 (.984) 4.0 (.157) MIN 20.0 (.787) REV. 06/05/96 07/07/98 10/10/98 11/18/98 05/10/99 DESCRIPTION OF CHANGES ORIGINAL RELEASE CORRECTED DIMENSIONS UPDATED TO ADD UL 1950 & CE-950 APPROVAL & MARKING UPDATE HIPOT FROM 3000 TO 3750 & ADDED TEST 1 MIN. MINIMUM UPDATE TO UL CLASS (B) 130 INSULATION SYSTEM BY TO TO TO MD MD EE30 (FEE30A) -OR- EI30(FEI30), 12-PIN VERTICAL BOBBIN P Premier M Magnetics Inc. "INNOVATORS IN MAGNETICS TECHNOLOGY" UNLESS OTHERWISE SPECIFIED DIMENSIONS ARE IN MM DIMENSIONAL TOLERANCES ARE: DECIMALS ANGLES .X + .25 +0 O 30' .XX + .15 DO NOT SCALE DRAWING TRANSFORMER CONTROL DRAWING PREMIER P/N: POL-24020 REVISION: 05/10/99 DRAWN BY: TOM O'NEIL REF: TOP226Y/204Y SCALE: NONE SHEET: 1 OF 6 APPLICATION NOTES Premier Magnetics' POL-24020 Switch Mode Transformer was designed for use with Power Integrations, Inc. TOP226Y three terminal off-line PWM switching regulator in the Flyback Buck-Boost circuit configuration. This conversion topology can provide isolated multiple outputs with efficiencies up to 90%. Premiers' POL-24020 transformer has been optimized to provide maximum power throughput. The TOPXXX series from Power Integrations, Inc. are self contained 100KHz three terminal voltage controlled PWM switching regulators. This series contains all necessary functions for an off-line switched mode control DC power source. These switching regulators provide a very simple solution to off-line designs. The inductors and transformer used with the 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 50 watt application circuit utilizing Power Integrations TOP226Y switching regulator in the flyback buck-boost configuration. The component values listed are intended for reference purposes only. A properly sized heat sinkS for the PWR-TOP204 & D3 are required for efficient and reliable operation. Soft start capacitor Css is optional and application dependent. FIGURE 3: TYPICAL APPLICATION CIRCUIT F1 3.1A 250v BR1 KBP06M 600V, 1.5A EMI FILTER LINE 1 L1 PMCE-0330 33mHY ~ 2 PREMIER MAGNETICS PART NUMBERS: (REQUEST DATA SHEETS BY PART#) L1 = PMCE-0330 33mHy EMI/RFI CMC T1 = POL-24020 MAIN SWITCHING TRANSFORMER L2 = VTP-01002 [email protected] INDUCTOR HOT RAIL +110 to 375Vdc + ALUMINUM ELECTROLYTIC FILTER CAPACITOR RATINGS: +24V OUTPUT: C2 >35V, Ripple Rated > 2000mA @ 100KHz @ Max. Op. Temp. PANASONIC FA SERIES: LOW IMPEDANCE RADIAL SERIES C2 = 1000uF, 35V = PANASONIC EEUFA1V821 C3 = 220uF, 35V = PANASONIC EEUFA1V221L C1 330 uF 400V + 85-265Vac 50/60Hz C6 0.1uF 4 NEUT 3 ~ - C1, 330.0 uF, 400V Nichicon # LLQ2G331MHSB, 85C Diameter=30mm (1.181) Length=30mm (1.181) C6 = 0.1uF 250Vac X2-Saftey Cap CLAMP NETWORK VR1 P6KE200A 4 5 L2 VTP-01002 10uH @ 2.0A + C5 47uF SEC C R4 5.76K 1% +24Vdc @ 2.00A C3 + 220uF 25V RTN T1 POL-24020 R1 6.2 R2 680 SOFT START KELVIN CONNECT CONTROL R3 49.9K 1% 7,8 6 E 1 1/2 OF U3 A 2 3 + SOURCE C4 0.1uF BIAS 1/2 OF U3 HEAT SINK C2 820uF 35V D2 1N4148 C DRAIN 11,12 3 NEC2501-H U1 POWER INT. TOP226Y PROPERLY SIZED HEAT SINK PROPERLY SIZED PRI D1 MUR160 U3 D3 MUR615CT 1 C7 & C8 = 250Vac Y-SAFTEY CAPACITORS EMI FILTER C7 2.2nF Css + 4.7uF C8 2.2nF 1 U2 C TL431 R A C9 0.1uF 8 6 HIGH VOLTAGE RETURN P Premier M Magnetics Inc. "INNOVATORS IN MAGNETICS TECHNOLOGY" UNLESS OTHERWISE SPECIFIED DIMENSIONS ARE IN MM DIMENSIONAL TOLERANCES ARE: DECIMALS ANGLES .X + .25 +0 O 30' .XX + .15 DO NOT SCALE DRAWING TRANSFORMER CONTROL DRAWING PREMIER P/N: POL-24020 REVISION: 05/10/99 DRAWN BY: TOM O'NEIL REF: TOP226Y/204Y SCALE: NONE SHEET: 2 OF 6