TABLE 1: ELECTRICAL SPECIFICATIONS AT 25 OC FIGURE 1: SCHEMATIC DIAGRAM SWITCHING TRANSFORMER DESIGNED FOR USE WITH POWER INTEGRATIONS PWR-TOP204YAI. REFER TO APPLICATION CIRCUIT OF FIGURE 3. PARAMETER MIN. PRIMARY INDUCTANCE (2-1) VOLTAGE = 0.250Vrms FREQUENCY = 100 KHZ 217 SPEC LIMITS TYP. 242 MAX. UNITS 267 µHY WHITE DOT ON BOBBIN DENOTES PIN #1 (HOT RAIL) 1 PRIMARY TURNS RATIO'S: SEC1 (10-9) : PRIMARY (2-1) SEC2A (8-6) : PRIMARY (2-1) SEC2B (7-6) : PRIMARY (2-1) BIAS (4-5) : PRIMARY (2-1) ----------------------------- 1: 5.500 1: 3.667 1:11.000 1: 4.400 ----------------------------- + 4% + 4% + 4% + 4% HIPOT: PRIMARY TO SECONDARIES BIAS TO SECONDARIES 3500 3500 --------------- --------------- Vrms Vrms 85 -------+5.0 -------+15.0 -------+5.0 -------0.50 0.50 50.0 265 Vac Vdc Amps Vdc Amps Vdc Amps +% +% +mV APP CIRCUIT PARAMETERS: AC LINE VOLTAGE 47/400 Hz OUTPUT VOLTAGE-SEC #2B (2) OUTPUT CURRENT-SEC #2B OUTPUT VOLTAGE-SEC #2A OUTPUT CURRENT-SEC #2A OUTPUT VOLTAGE-SEC #1 (3) OUTPUT CURRENT-SEC #1 LINE REGULATION (85 TO 135Vac) LOAD REGULATION 0-100% RIPPLE 10 (+10V) SEC #1 9 (DRAIN) 2 (+BIAS) 4 BIAS (RETURN) 5 8 (+15V) SEC #2A 7 (+5V) SEC #2B 6 (1) 0.60 0.01 0.40 ---------------------- 2.50 0.10 0.10 ---------------------- 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. (2) SECONDARY #2B 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 6 P TSD-877 M YYWW PIN #1 WHITE DOT 1 2 3 4 5 28.5 (1.122) MAX 25.5 (1.004) MAX UL INSULATION SYMBOL AND MANUFACTURER IDENTIFICATION HERE 24.2 (.953) MAX 1 2 3 4 0.8 DIA. (.032) 5 5.0 (.197) 4.0 (.157) MIN 17.5 (.689) 20.0 (.787) REV. 12/28/95 09/04/96 04/23/99 DESCRIPTION OF CHANGES CUSTOMER REQUESTED CHANGES, REMOVED WINDING INCREASE POWER ON ALL OUTPUTS, CHANGED TO PWRTOP204YAI UPDATE TO UL CLASS (B) 130 INSULATION SYSTEM 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: TSD-877 REVISION: 04/23/99 DRAWN BY: TOM O'NEIL REF: PWR-TOP204 SCALE: NONE SHEET: 1 OF 6 BY TO TO MD APPLICATION NOTES Premier Magnetics' TSD-877 Switch Mode Transformer was designed for use with Power Integrations, Inc. PWRTOP204YAI 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 15 watt application circuit utilizing Power Integrations PWR-TOP204 switching regulator. This circuit provides three precision outputs. The "MAIN" output of secondary #2B 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 a 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 47 uF 400V C6 0.1uF 4 NEUT 10 +94 to 375Vdc 3 ~ C10 100uF 25V - 8 7 PRI 2 SOURCE L2 VTP-01002 10uH @ 2.0A 1/2 OF U3 C5 47uF R1 6.2 C3 220uF 16V A C R2 1K 2 4 R1 510 KELVIN CONNECT CONTROL + RTN 5 E +5Vdc @ 2.5A 1 1/2 OF U3 MOC8101 C4 0.1uF R4 10.0K 1% R5 10.0K 1% BIAS + DRAIN C13 + 100uF 25V 6 4 C +15.0Vdc @ 100mA C2 + 2200uF 25V D3 1N4148 5 D4 MBR160 SEC #2B D1 MBR160 PROPERLY SIZED HEAT SINK + RTN D2 MBR735 1 VR1 P6KE200A U1 POWER INT. PWR-TOP204YAI C12 0.1uF 6.3V GND + SEC#2A T1 TSD-877 CLAMP NETWORK MOC8101 C11 100uF 25V +5.0Vdc @ 100mA +OUT 9 C6 = 0.1uF 250Vac X2-Saftey Cap U3 +IN L3 VTP-01001 SEC#1 + 85-265Vac 50/60Hz BR1 DF06M 600V, 1.0A EMI FILTER U5 MC78L05AC D3 MBR160 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-877 REVISION: 04/23/99 DRAWN BY: TOM O'NEIL REF: PWR-TOP204 SCALE: NONE SHEET: 2 OF 6