TABLE 1: ELECTRICAL SPECIFICATIONS AT 25 OC FIGURE 1: SCHEMATIC DIAGRAM SWITCHING TRANSFORMER DESIGNED FOR USE WITH POWER INTEGRATIONS PWR-TOP201YAI. REFER TO APPLICATION CIRCUIT OF FIGURE 3. PARAMETER MIN. SPEC LIMITS TYP. PRIMARY INDUCTANCE (2-1) VOLTAGE = 0.250Vrms FREQUENCY = 100 KHZ 630 700 MAX. UNITS 770 µHY WHITE DOT ON BOBBIN DENOTES PIN #1 10 1 SEC #1 PRIMARY 9 2 TURNS RATIO'S: SEC1 (9-10) : PRIMARY (2-1) SEC2 (6-7) : PRIMARY (2-1) BIAS (4-5) : PRIMARY (2-1) ---------------------- 1:8.83 1:17.67 1:7.57 ---------------------- + 3% + 3% + 3% HIPOT: PRIMARY TO SECONDARIES BIAS TO SECONDARIES 3500 3500 --------------- --------------- Vrms Vrms APP CIRCUIT PARAMETERS: (1) AC LINE VOLTAGE 47/400 Hz OUTPUT VOLTAGE-SEC #2 (2) OUTPUT CURRENT-SEC #2 OUTPUT VOLTAGE-SEC #1 (3) OUTPUT CURRENT-SEC #1) LINE REGULATION (85 TO 135Vac) LOAD REGULATION 0-100% RIPPLE 85 0.60 0.020 ---------------------- -------+5.0 -------+5.0 -------0.50 0.50 50.0 265 1.20 0.080 ---------------------- 7 4 SEC #2 BIAS 6 5 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. Vac Vdc Amps Vdc Amps +% +% +mV (1) REFER TO APPLICATION CIRCUIT OF FIGURE 3. (2) SECONDARY #2 IS THE MAIN FEEDBACK CONTROL WINDING. (3) SECONDARY VOLTAGE #1 IS OBTAINED VIA A LINEAR REGULATOR. FIGURE 2: PHYSICAL DIMENSIONS mm (INCHES) 10 9 8 7 NOTE2: A) BOTTOM HALF OF CORE IS CUFF WRAPPED PRIOR TO ASSEMBLY. THIS GAURANTEES 6.2mm CREEPAGE PIN-CORE-PIN 6 P TSD-778 M YYWW PIN #1 WHITE DOT 1 2 3 4 5 23.0 (.906) MAX .157 (4.0) MIN 18.0 (.709) MAX MYLAR TAPE 7mm WIDE 21.00 (.827) MAX 1 2 3 4 4.0 (.160) CUFF WRAP BOTTOM HALF OF CORE UL INSULATION SYMBOL AND MANUFACTURER IDENTIFICATION HERE 0.8 DIA. (.030) 5 6.0 (.240) TYP 16.0 (.630) 12.0 (.470) BOTTOM HALF OF CORE IS CUFF WRAPPED WITH MYLAR TO GUARANTEE >6.2mm PIN-CORE-PIN CREEPAGE REV. 10/20/95 12/28/95 05/13/99 DESCRIPTION OF CHANGES UPDATED RELEASE CUSTOMER REQUESTED CHANGES, REMOVED WINDING UPDATED TO UL CLASS(B) 130 INSULATION SYSTEM E22, 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: TSD-778 REVISION: 05/13/99 DRAWN BY: TOM O'NEIL REF: PWR-TOP201 SCALE: NONE SHEET: 1 OF 6 BY TO TO MD APPLICATION NOTES Premier Magnetics' TSD-778 Switch Mode Transformer was designed for use with Power Integrations, Inc. PWRTOP201YAI three terminal off-line PWM switching regulator in the Flyback Buck-Boost circuit configuration. 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 (85Vac to 265Vac) input high precision 7 watt application circuit utilizing Power Integrations PWR-TOP201 switching regulator. This circuit provides three precision outputs. The "MAIN" output of secondary #2 is optically fed back to the PWR-TOP201 controller to close the voltage feedback loop. Secondary #1 is fed into a linear regulator to provide an additional high precision output. The component values listed are intended for reference purposes only. FIGURE 3: TYPICAL APPLICATION CIRCUIT F1 3.15A LINE 1 L1 PMCU-0330 33mHY ~ 2 C1 22 uF 400V C6 0.1uF 4 NEUT +95 to 375Vdc + 3 ~ 10 + 85-265Vac 50/60Hz BR1 DF06M 600V, 1.0A EMI FILTER T1 TSD-778 CLAMP NETWORK 2 MOC8101 1/2 OF U3 C5 47uF R1 6.2 +5.0Vdc @ 80mA +OUT RTN L2 VTP-01001 10uH @ 1.0A D2 MBR360 R4 10.0K 1% + C3 220uF 16V +5Vdc @ 1.2A 1 A C 5 R2 1K 2 4 R1 510 KELVIN CONNECT CONTROL +IN + 1/2 OF U3 MOC8101 C4 0.1uF E GND R5 10.0K 1% BIAS + SOURCE 6 4 C C12 0.1uF 6.3V U5 MC78L05AC SEC #2 D3 1N4148 5 D3 MBR160 C2 1000uF + 25V PRI D1 MUR160 U3 + 7 1 VR1 P6KE200 DRAIN L3 VTP-01001 SEC#1 9 PROPERLY SIZED HEAT SINK C11 100uF 25V C10 100uF + 25V - C6 = 0.1uF 250Vac X2-Saftey Cap U1 POWER INT. PWR-TOP201YAI RTN 10 C7 & C8 = 250Vac Y-SAFTEY CAPACITORS EMI FILTER C7 2.2nF 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: TSD-778 REVISION: 05/13/99 DRAWN BY: TOM O'NEIL REF: PWR-TOP201 SCALE: NONE SHEET: 2 OF 6