TABLE 1: ELECTRICAL SPECIFICATIONS AT 25 OC FIGURE 1: SCHEMATIC DIAGRAM SWITCHING TRANSFORMER DESIGNED FOR USE WITH POWER INTEGRATIONS PWR-TOP226Y. REFER TO APPLICATION CIRCUIT OF FIGURE 3. PARAMETER MIN. PRIMARY INDUCTANCE (3-1) VOLTAGE = 0.250Vrms FREQUENCY = 100 KHZ 540 SPEC LIMITS TYP. MAX. 600 WHITE DOT ON BOBBIN DENOTES PIN #1 1 UNITS µHY 660 PRIMARY TURN RATIO'S: SEC (10,9-7,6) : PRIMARY (3-1) BIAS (4-5) : PRIMARY (3-1) PRI LEAKAGE IND. (SEC SHORTED) VOLTAGE = 0.250Vrms FREQUENCY = 100 KHZ HIPOT: PRIMARY TO SECONDARY BIAS TO SECONDARY APP 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: 14.67 1: 8.80 --------------- + 4% + 4% -------- -------- 35.0 µHY 3 10,9 SECONDARY 4 7,6 BIAS 5 3000 3000 --------------- --------------- Vrms Vrms 85 -------7.0 --------------0.20 0.20 50.0 265 Vac Vdc Amps Amps +% +% +mV 0.0 ----------------------------- 5.0 5.5 ---------------------- (1) REFER TO APPLICATION CIRCUIT OF FIGURE 3. SECONDARY PINS #10 & 9, #7 & 6 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. FIGURE 2: PHYSICAL DIMENSIONS mm (INCHES) 10 9 8 7 6 P POL-07050 M YYWW PIN #1 WHITE DOT 1 2 3 4 5 29.0 (1.142) MAX 25.5 (1.004) MAX UL INSULATION SYMBOL AND MANUFACTURER IDENTIFICATION HERE 24.2 (.953) MAX 1 2 3 4 5.0 (.197) 0.8 DIA. (.032) 5 4.0 (.157) MIN 17.5 (.689) 20.0 (.787) REV. 02/16/96 07/07/98 04/16/99 DESCRIPTION OF CHANGES ORIGINAL RELEASE CORRECTED WIDTH DIMENSION, NO OTHER CHANGES UPDATE TO UL CLASS (B) INSULATION SYSTEM BY TO PP MD EE, EI28/11, 10-PIN VERTICAL BOBBIN P Premier M Magnetics Inc. 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-07050 REVISION: 04/16/99 DRAWN BY: TOM O'NEIL REF: PWR-TOP226Y SCALE: NONE SHEET: 1 OF 6 APPLICATION NOTES Premier Magnetic's POL-07050 Switch Mode Transformer was designed for use with Power Integrations, Inc. PWRTOP226Y 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%. Premier's POL-07050 transformer has been optimized to provide maximum power throughput. The PWR-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 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 35 watt application circuit utilizing Power Integrations PWR-TOP226 switching regulator in the flyback buck-boost configuration. The component values listed are intended for reference purposes only. Properly sized heat sinks for the PWR-TOP204 & Diode D1 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 KBP04M 400V, 1.5A EMI FILTER LINE 1 L1 PMCE-0330 33mHY ~ 2 + HOT RAIL +112 to 375Vdc C1, 330.0 uF, 400V Nichicon # LLQ2G331MHSB, 85C Diameter=30mm (1.181) Length=30mm (1.181) C1 330 uF 400V + 85-265Vac 50/60Hz C6 0.1uF 4 NEUT 3 ~ - C6 = 0.1uF 250Vac X2-Saftey Cap T1 POL-07050 CLAMP NETWORK D3 MBR10100 1 VR1 & VR2 1.5KE120A 10,9 3 + D2 1N4148 4 4 NEC2501-H C L2 VTP-01005 10uH @ 5.0A PROPERLY SIZED HEAT SINK PRI D1 MUR160 U3 PREMIER MAGNETICS PART NUMBERS: (REQUEST DATA SHEETS BY PART#) L1 = PMCE-0330 33mHy EMI/RFI CMC T1 = POL-07050 MAIN SWITCHING TRANSFORMER L2 = VTP-01005 [email protected] INDUCTOR C4 0.1uF C2 &C3 3300uF + 25V PROPERLY SIZED HEAT SINK SOURCE C5 47uF SEC R4 10.0K 1% C4 + 330uF 10V RTN R2 510 5 R1 6.2 SOFT START KELVIN CONNECT CONTROL C 7,6 3 + DRAIN 1/2 OF U3 E R3 18.0K 1% 2 BIAS U1 POWER INT. PWR-TOP226Y 1 1/2 OF U3 A +7Vdc @ 5.00A 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. 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-07050 REVISION: 04/16/99 DRAWN BY: TOM O'NEIL REF: PWR-TOP226Y SCALE: NONE SHEET: 2 OF 6