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 (3-1) 100 KHZ, 0.250Vrms 427 SPEC LIMITS TYP. 475 MAX. UNITS 523 µHY ----------------------------- 1: 6.75 1: 6.75 1:13.50 1: 5.40 ----------------------------- + 4% + 4% + 4% + 4% HIPOT: PRIMARY & BIAS TO SECONDARIES 3500 -------- -------- Vrms 85 -------+8.0 --------8.0 -------+5.0 -------0.50 0.50 20.0 265 Vac Vdc Amps Vdc Amps Vdc Amps +% +% +mV 0.020 0.020 0.050 ---------------------- 1.100 0.250 3.100 --------------50.0 (1) REFER TO APPLICATION CIRCUIT OF FIGURE 3. (2) SECONDARY #3 IS THE MAIN FEEDBACK CONTROL WINDING. (3) SEC VOLTAGE #1 & #2 ARE OBTAINED VIA POST LINEAR REGULATORS. 10 PRIMARY 9 8 7 5 6 12 (+10V) SEC #1 11 (+10V RETURN) 10 (-10V RETURN) SEC #2 9 (-10V) (ANODE) 5 BIAS APP CIRCUIT PARAMETERS: (1) AC LINE VOLTAGE 47/400 Hz OUTPUT VOLTAGE SEC #1 (3) OUTPUT CURRENT SEC #1 OUTPUT VOLTAGE SEC #2 (3) OUTPUT CURRENT SEC #2 OUTPUT VOLTAGE SEC #3 (2) OUTPUT CURRENT SEC #3 LINE REGULATION (85 TO 265Vac) LOAD REGULATION 10-100% RIPPLE 11 (HOT RAIL) 1 (DRAIN) 3 TURNS RATIO'S: SEC1 (12-11) : PRIMARY (3-1) SEC2 (10-9) : PRIMARY (3-1) SEC3 (8-7) : PRIMARY (3-1) BIAS (5-6) : PRIMARY (3-1) 12 WHITE DOT ON BOBBIN DENOTES PIN #1 (H.V. RETURN)6 8 (+5V) SEC #3 7 (5V RETURN) 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) P TSD-937 M YYWW PIN #1 WHITE DOT 1 2 3 4 31.00 (1.220) MAX CORE TAPED 26.00 (1.024) MAX UL INSULATION SYMBOL AND MANUFACTURER IDENTIFICATION HERE 28.58 (1.125) MAX 1 2 3 5.00 (.197) 4 25.00 (.984) 5 0.8 DIA. (.032) 6 4.0 (.157) MIN 20.0 (.787) REV. 10/08/96 01/13/99 05/21/99 DESCRIPTION OF CHANGES ORIGINAL RELEASE INCREASE DIM 1.063 TO 1.125 UPDATED TO UL CLASS (B) 130 INSULATION SYSTEM EI30 , 12-PIN VERTICAL BOBBIN 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 TRANSFORMER CONTROL DRAWING PREMIER P/N: TSD-937 REVISION: 05/21/99 DRAWN BY: TOM O'NEIL REF: PWR-TOP204 SCALE: NONE SHEET: 1 OF 6 BY TO MD MD APPLICATION NOTES Premier Magnetics' TSD-937 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 30 watt application circuit utilizing Power Integrations PWR-TOP204 switching regulator. This circuit provides three precision outputs. The "MAIN" output of secondary #3 is optically fed back to the PWR-TOP204 controller to close the voltage feedback loop. Secondaries #1 & #2 are fed into linear regulators to provide high precision outputs. Either secondary #1 or #2 can supply up to 1A of continuous current while the other supplies up to 250mA. The component values listed are intended for reference purposes only, and set up such that secondary #1 supplying 1.0A. FIGURE 3: TYPICAL APPLICATION CIRCUIT ALUMINUM ELECTROLYTIC FILTER CAPACITOR RATINGS: C1= 47uF 400V, PANASONIC 105 OC: ECEA2GGE470 -OR- NICHICON 105OC: #UPR2G470MHH PREMIER MAGNETICS PART NUMBERS: (REQUEST DATA SHEETS BY PART#) L1 = PMCE-0330 33mHy EMI/RFI CMC T1 = TSD-937 MAIN SWITCHING TRANSFORMER L2 = VTP-01002 >5uHy, 3.0 AMP INDUCTOR L3 & L4 = VTP-01001 10uHy, 1.0 AMP INDUCTOR +10V OUTPUT: C13 >16V, Ripple Rated > 1235mA @ 100KHz @ Max. Op. Temp. C13 = 1000uF 25V, PANASONIC 105OC: ECA1EFG102 C10, C11, C14= 100uF 16V, PANASONIC 105OC: ECA1CFG101 C12, C15 = 47uF 16V, PANASONIC 105OC: ECA1CFG470 +5.0V OUTPUT: C8 >10V, Ripple Rated > 3370mA @ 100KHz @ Max. Op. Temp. C8 = 4700uF 16V, PANASONIC 105OC: EEUFA1C472 C9 = 470uF 10V, PANASONIC 105OC: ECA1AFG471 T1 D5 TSD-937 MBR3100 BR1 F1 EMI FILTER DF06M 3.1A HOT RAIL 12 L1 250V LINE 600V, 1.0A ~ 2 + C13 1000uF 25V C2 47 uF 400V C1 0.1uF 4 NEUT 3 C1 = 0.1uF 250Vac X2-Saftey Cap PRI D1 MUR160 (BYV26C) U3 NEC PS2501-1 4 +8.0Vdc 0.010-1Amp +OUT C15 47uF + 16V GND +8V RTN -8V RTN E C8 + 4700uF 16V SEC #3 7 6 -OUT U4 LM2991 1 1/2 OF U3 A R3 10.0K 1% C R4 10.0K 1% 2 + R5 150 1/4W R2 75 KELVIN CONNECT C5 & C6 = 250Vac Y-SAFTEY CAPACITORS EMI FILTER C5 2.2nF -IN C6 2.2nF C12 47uF 16V -8.0Vdc 10-250mA L2 VTP-01002 R1 6.2 CONTROL R6 1.37K 1% GND ADJ -10V MIN + +5.0Vdc @ 0-3A 8 3 C4 47uF L3 VTP-01001 R5 243 1% on/off C11 + 100uF 16V D3 MBR745 HEAT SINK C3 0.1uF BIAS 1/2 OF U3 D4 MBR1100 3 D2 1N4148 5 C SOURCE C14 100uF + 16V C10 + 100uF 16V SEC #2 9 1 VR1 P6KE200A DRAIN +IN 10 CLAMP NETWORK U1 POWER INT. PWR-TOP204YAI PROPERLY SIZED HEAT SINK (10oC/W) U5 LM2940T-8.0 SEC #1 11 - ~ +10V MIN +90 to 375Vdc + 85-265Vac 50/60Hz 1 PMCE-0330 33mHY L4 VTP-01001 1 U2 C TL431 R A 6 + C9 470uF 10V +5.0V RTN C7 0.1uF 8 HIGH VOLTAGE RETURN 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 TRANSFORMER CONTROL DRAWING PREMIER P/N: TSD-937 REVISION: 05/21/99 DRAWN BY: TOM O'NEIL REF: PWR-TOP204 SCALE: NONE SHEET: 2 OF 6