TABLE 1: ELECTRICAL SPECIFICATIONS AT 25 OC FIGURE 1: SCHEMATIC DIAGRAM SWITCHING TRANSFORMER DESIGNED FOR USE WITH POWER INTEGRATIONS PWR-TOP202YAI. REFER TO APPLICATION CIRCUIT OF FIGURE 3. PARAMETER MIN. PRIMARY INDUCTANCE (2-1) VOLTAGE = 0.250Vrms FREQUENCY = 100 KHZ 567 SPEC LIMITS TYP. MAX. 630 693 WHITE DOT DENOTES PIN #1 UNITS (HOT RAIL) 1 µHY 8 (ANODE +15V) PRIMARY TURN RATIO'S: SEC 1A (8-7) : PRIMARY (2-1) SEC 1B (6-5) : PRIMARY (2-1) BIAS (3-4) : PRIMARY (2-1) PRI LEAKAGE INDUCTANCE VOLTAGE = 0.250Vrms FREQUENCY = 100 KHZ ---------------------- 1: 7.00 1: 7.00 1: 4.67 ---------------------- + 4% + 4% + 4% -------- -------- 35.0 µHY SEC #1A (DRAIN) 2 7 (COM) (ANODE) 3 6 (COM) BIAS SEC #1B (HOT RTRN) 4 5 (CATHODE -15V) HIPOT: PRIMARY TO SECONDARY BIAS TO SECONDARY APP CIRCUIT PARAMETERS: (1) AC INPUT VOLTAGE OUTPUT VOLTAGE CONTINUOUS OUTPUT POWER LINE REGULATION (85 TO 265Vac) LOAD REGULATION 10-100% RIPPLE 3000 3000 --------------- --------------- Vrms Vrms 85 -------18 -------5.00 3.00 100.0 265 Vdc +Vdc Watts +% +% +mV ----------------------------- 14.4 ---------------------- 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) 8 7 6 NOTE2: A) BOTTOM HALF OF CORE IS CUFF WRAPPED PRIOR TO ASSEMBLY. THIS GAURANTEES 6.2mm CREEPAGE PIN-CORE-PIN 5 P TSD-968 M YYWW PIN #1 WHITE DOT 1 2 3 .157 (4.0) MIN 4 23.00 (.906) MAX CORE TAPED 18.00 (.709) MAX MYLAR TAPE 7mm WIDE UL INSULATION SYMBOL AND MANUFACTURER IDENTIFICATION HERE 21.00 (.827) MAX 1 2 3 5.00 (.197) CUFF WRAP BOTTOM HALF OF CORE 0.8 DIA. (.032) 4 4.0 (.157) MIN 12.50 (.492) BOTTOM HALF OF CORE IS CUFF WRAPPED WITH MYLAR TO GUARANTEE 6.2mm PIN-CORE-PIN CREEPAGE REV. 12/17/96 05/25/99 DESCRIPTION OF CHANGES ORIGINAL RELEASE UPDATED TO UL CLASS (B) 130 INSULATION SYSTEM BY TO MD EI22/19/6, 8-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: TSD-968 REVISION: 05/25/99 DRAWN BY: TOM O'NEIL REF: PWR-TOP202YAI SCALE: NONE SHEET: 1 OF 6 APPLICATION NOTES Premier Magnetic's TSD-968 Switch Mode Transformer was designed for use with Power Integrations, Inc. PWRTOP202YAI 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 TSD-968 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 14 watt application circuit utilizing Power Integrations PWR-TOP202 switching regulator in the flyback buck-boost configuration. This circuit represents the lowest cost implementation and utilizes the bias winding for feedback control. As such the line & load regulation are worse than that which could be achieved by utilizing an opto-coupler to sense the actual outputs. The component values listed are intended for reference purposes only. FIGURE 3: TYPICAL APPLICATION CIRCUIT PREMIER MAGNETICS PART NUMBERS: (REQUEST DATA SHEETS BY PART#) L1 = PMCU-0330 33mHy EMI/RFI CMC T1 = TSD-968 MAIN SWITCHING TRANSFORMER L2, L3 = VTP-01001 10uHy, 1.0Amp INDUCTOR F1 3.1A 250v BR1 DF04M 400V, 1.0A EMI FILTER LINE 1 L1 PMCU-0330 33mHY ~ 2 + ALUMINUM ELECTROLYTIC FILTER CAPACITOR RATINGS: +18V OUTPUT: C9 & C11 >25V, Ripple Rated > 470mA @ 100KHz @ Max. Op. Temp. PANASONIC SU GENERAL PURPOSE SERIES: C9, C11 = 220uF, 35V = PANASONIC ECEA1EU221 C10, C12 = 100uF, 25V = PANASONIC ECEA1EU101 HOT RAIL +98 to 375Vdc C1 47 uF 400V + 85-265Vac 50/60Hz C6 0.1uF 4 NEUT 3 ~ - C6 = 0.1uF 250Vac X2-Saftey Cap CLAMP NETWORK VR1 P6KE200A D1 MUR160 (BYV26C) 1 T1 TSD-968 8 PRI 2 SOURCE + DRAIN C12 100uF 25V SEC #2 C9 + 220uF 35V C4 0.1uF 5 BIAS +18Vdc @ 400mA +/- 18V RTN 6 4 C5 47uF + 7 3 U1 POWER INT. PWR-TOP202YAI PROPERLY SIZED HEAT SINK L3 VTP-01001 10uH @ 1.0A C11 + 220uF 35V D2 1N4148 VR2 22V 1N4748A D4 MUR110 (UF4002) D3 MUR110 (UF4002) R1 6.2 + C10 100uF 25V -18Vdc @ 400mA L2 VTP-01001 10uH @ 1.0A KELVIN CONNECT CONTROL C7 & C8 = 250Vac Y-SAFTEY CAPACITORS EMI FILTER C7 2.2nF C8 2.2nF 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: TSD-968 REVISION: 05/25/99 DRAWN BY: TOM O'NEIL REF: PWR-TOP202YAI SCALE: NONE SHEET: 2 OF 6