TABLE 1: ELECTRICAL SPECIFICATIONS AT 25 OC FIGURE 1: SCHEMATIC DIAGRAM SWITCHING TRANSFORMER DESIGNED FOR USE WITH POWER INTEGRATIONS TOP-221Y REFER TO APPLICATION CIRCUIT OF FIGURE 3. SPEC LIMITS TYP. MAX. PARAMETER MIN. PRIMARY INDUCTANCE (2-1) FREQ. = 100 KHZ @ 0.250Vrms 3200 3500 3800 µHY --------------- 1: 9.33 1: 11.2 --------------- + 4% + 4% -------- -------- 150.0 µHY TURN RATIO'S: SECONDARY (9-6) : PRIMARY (2-1) BIAS (3-4) : PRIMARY (2-1) PRI LEAKAGE IND. (9-6 SHORTED) FREQ. = 100 KHZ @ 0.250Vrms DOT ON BOBBIN DENOTES PIN #1 (HOT RAIL) 1 UNITS PRIMARY 9 (+18V) (DRAIN) 2 SECONDARY (+BIAS) 3 6 (18V RETURN) BIAS (HOT RETURN) 4 HIPOT: PRIMARY TO SECONDARY BIAS TO SECONDARY 3000 3000 APP CIRCUIT PARAMETERS: (1) INPUT OUTPUT VOLTAGE OUTPUT CURRENT CONTINUOUS OUTPUT CURRENT PEAK BIAS OUTPUT VOLTAGE BIAS LINE REGULATION (85 TO 265Vac) LOAD REGULATION 10-100% RIPPLE 85 20 -------10 ---------------------- ---------------------18 --------------15 -------0.30 0.20 50.0 --------------265 200 220 200 ---------------------- Vrms Vrms Vac Vdc mA mA Vdc mA +% +% +mV NOTE1: REINFORCED INSULATION SYSTEM, UL1950, IEC950, CSA-950: A) ALL MATERIALS MEET "UL", "CSA" & "IEC" REQUIREMENTS B) TRIPLE BASIC INSULATED SECONDARY. C) VARNISH FINISHED ASSEMBLY. D) UL1950 & CSA-950 CERTIFIED: FILE #E162344. E) 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) 10 9 8 7 6 5 P TSD-1439 M YYWW PIN #1 WHITE DOT 1 2 3 4 18.2 (.716) MAX 16.5 (.650) MAX UL INSULATION SYMBOL AND MANUFACTURER IDENTIFICATION HERE 3.5 (.138) 1 10.5 (.413) 2 3 4 18 (.709) MAX 12.5 (.492) 6.0 (.236) TYP 4.5 (.177) TYP 0.6 DIA. (.024) 10 9 8 2.7 (.106) 7 6 5 13.5 (.531) 12.2 (.480) REV. 06/24/99 DESCRIPTION OF CHANGES ORIGINAL RELEASE BY PP 08/05/99 12/22/99 UPDATE TO UL CLASS 130 (B) INSULATION SYSTEM UPDATED TO UL RECOGNIZED MD MD EE16/EI16, 10-PIN VERTICAL 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 FLYBACK TRANSFORMER CONTROL DRAWING PREMIER P/N: TSD-1439 REVISION: 12/22/99 DRAWN BY: PETER PHAM REF: TOP221Y SCALE: NONE SHEET: 1 OF6 APPLICATION NOTES Premier Magnetics' TSD-1439 Switch Mode Transformer was designed for use with Power Integrations, Inc. TOP223 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' TSD-1439 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 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 4 watt application circuit utilizing Power Integrations TOP221Y switching regulator in the flyback buck-boost configuration. The component values listed are intended for reference purposes only. Proper thermal managment of the TOP221, VR1 & D3 is required for reliable operation. The TOP221Y should be mounted on > 0.75 in2, 2oz copper clad to provide a proper heat sink starting point for evaluation. As with any flyback circuit the output is not intended to be run under a no load condition. The component values listed are intended for reference purposes only. Careful evaluation by the end user is required and should be based on the actual application & it's associated environmental conditions. FIGURE 3: TYPICAL APPLICATION CIRCUIT ALUMIN UM ELEC TROLYTIC FILTER CAPACITOR RATIN GS: C1 : > 400V, Ripp le Rated > 125m A @ 120Hz @ Max. Op erating Tem p. (Nichicon P/N URT2G330MRA, 105C ) C2 : > 35V, Ripp le Rated > 267m A @ 100KHz @ Max. Op. Temp. (Panasonic P/N ECA1VFG101, 105C) C3 : >25V, (Panasonic P/N EC A1EFG 470, 105C) PREMIER MAGNETICS PART NUMBERS: (REQUEST DATA SHEETS BY PART#) L1 = PMCU-0220 22m Hy EMI/RFI CMC T1 = TSD-1439 MAIN SWITCHING TRANSFORMER L2 = VTP-01001 10uHy, 1.0Amp INDUCTOR BR1 DF06M 600V , 1A EMI FILTER F1 3.1A 250v LIN E 1 2 ~ + C1 47 uF 400V C6 0.1uF 4 NEUT 3 HOT RAIL +108 to 375Vdc ~ C1, 33.0 uF, 400V Low Profile Type: Nichicon # UV S2G330MRA, 85C Nichicon # URT2G330MRA, 105C Diameter=18mm (.708) Leng th=25m m (.984) + 85-265Vac 50/60Hz MO V L1 PMCU-0220 22mHY - C6 = 0.1uF 250Vac X2-Saftey C ap T1 TSD-1439 CLAMP NETWORK 1 VR1 P6KE200A PRI D1 MUR160 (BYV26C) U3 NEC PS2501-1 9 S S S S S S SOURCE C2 100uF 35V 2 D2 1N4148 4 +18Vdc @ 200mA 1 1/2 OF U3 A + R3 35.7K 1% C R4 5.76K 1% 2 SEC 6 3 C U1 POWER INT. 1/2 OF U3 PWR-TOP221Y PROPERLY SIZED HEAT SINK DRAIN CO NTRO L D C L2 VTP-01001 10uH @ 1.0A D3 MR851 C3 47uF 25V RTN C4 47uF BIAS R5 120 1/2W 4 E + 3 R2 220 R1 6.8 + C5 47uF 10V HIGH VOLTAGE RETURN P Premier M Magnetics Inc. "INNOVATORS IN MAGNETICS TECHNOLOGY" C7 & C8 = 250Vac Y-SAFTEY CAPS EMI FILTER C7 2.2nF C8 2.2nF UNLESS OTHERWISE SPECIFIED DIMENSIONS ARE IN MM DIMENSIONAL TOLERANCES ARE: DECIMALS ANGLES .X + .25 +0 O 30' .XX + .15 DO NOT SCALE DRAWING U2 1 C TL431 R A C9 0.1uF 8 6 FLYBACK TRANSFORMER CONTROL DRAWING PREMIER P/N: TSD-1439 REVISION: 12/22/99 DRAWN BY: PETER PHAM REF: TOP221Y SCALE: NONE SHEET: 2 OF6