TABLE 1: ELECTRICAL SPECIFICATIONS AT 25 OC FIGURE 1: SCHEMATIC DIAGRAM SWITCHING TRANSFORMER DESIGNED FOR USE WITH POWER INTEGRATIONS TOP222Y. REFER TO APPLICATION CIRCUIT OF FIGURE 3. PARAMETER PRIMARY INDUCTANCE (2-1) VOLTAGE = 0.250Vrms FREQUENCY = 100 KHZ SPEC LIMITS MIN. TYP. MAX. UNITS 1962 µHY 2179 2196 WHITE DOT DENOTES PIN #1 1 PRIMARY 8 2 TURN RATIO'S: SEC (7-8) : PRIMARY (2-1) BIAS (4-3) : PRIMARY (2-1) PRI LEAKAGE IND. (SEC SHORTED) VOLTAGE = 0.250Vrms FREQUENCY = 100 KHZ --------------- 1: 2.5 1: 10.0 --------------- + 4% + 4% -------- -------- 44.0 µHY SECONDARY 3 7 BIAS 4 HIPOT: PRIMARY TO SECONDARY BIAS TO SECONDARY APP CIRCUIT PARAMETERS: (1) AC LINE VOLTAGE 47/400 Hz OUTPUT VOLTAGE OUTPUT CURRENT CONTINUOUS OUTPUT CURRENT PEAK LINE REGULATION (85 TO 265Vac) LOAD REGULATION 10-100% RIPPLE 3000 3000 --------------- --------------- Vrms Vrms 85 -------48.0 --------------0.20 0.20 50.0 265 Vac Vdc Amps Amps +% +% +mV 0.0 ----------------------------- .250 .330 ---------------------- NOTE1: REINFORCED INSULATION, UL1950, IEC950, CSA-950: A) ALL MATERIALS MEET "UL", "CSA" & "IEC" REQUIREMENTS B) ALL MATERIALS RATED 130 OC (CLASS B) OR BETTER. C)DESIGNED FOR >6.2mm CREEPAGE REQUIREMENTS. D)VARNISH FINISHED ASSEMBLY. (1) REFER TO RD5 APPLICATION CIRCUIT OF FIGURE 3. FIGURE 2: PHYSICAL DIMENSIONS INCHES (mm) PIN#1 I.D. WHITE DOT 8 7 6 5 1 2 3 4 .988 (25.1) MAX. P M 1.028 (26.1) CORE TAPED TSD-1421 YYWW .118 (3.00) .032 (0.80) .197 (5.00) .779 (19.8) MAX .787 (20.0) REV. 05/17/99 DESCRIPTION OF CHANGES ORIGINAL RELEASE EF25 8-PINS HORZ 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 FLYBACK TRANSFORMER CONTROL DRAWING PREMIER P/N: TSD-1421 REVISION: 05/17/99 ENGR: PETER PHAM REF: TOP222Y SCALE: NONE SHEET: 1 OF 4 BY PP APPLICATION NOTES Premier Magnetics' TSD-1421 Switch Mode Transformer was designed for use with Power Integrations, Inc. PWRTOP222Y 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-1421 transformer has been optimized to provide maximum power throughput. The TOPSwitch-II 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 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 12 watt application circuit utilizing Power Integrations TOP222 switching regulator in the flyback buck-boost configuration. The component values listed are intended for reference purposes only. Please refer to Power Integrations application notes for the RD5 demo board for more information. FIGURE 3: TYPICAL APPLICATION CIRCUIT PREMIER MAGNETICS PART NUMBERS: (REQUEST DATA SHEETS BY PART#) L1 = PMCU-0330 33mHy EMI/RFI CMC T1 = TSD-1421 MAIN SWITCHING TRANSFORMER L2 = VTP-01001 10uHy, 1.0Amp INDUCTOR BR1 DF06M 600V, 1A EMI FILTER F1 3.1A 250v LINE 1 ~ 2 4 HOT RAIL +100 to 375Vdc + C1 47 uF 400V C6 0.1uF NEUT +48V OUTPUT: C2 >63V, Ripple Rated > 360mA @ 100KHz @ Max. Op. Temp. PANASONIC FA SERIES: LOW IMPEDANCE LONG LIFE RADIAL SERIES C2 = 100uF, 63V = PANASONIC ECA1JFG101 C3 = 47uF, 63V = PANASONIC ECA1JFG470 3 ~ C1, 47.0 uF, 400V Low Profile Type: Nichicon # UVS2G470MRA, 85C Nichicon # URT2G470MRA, 105C Diameter=18mm (.708) Length=20mm (.787) + 85-265Vac 50/60Hz L1 PMCU-0330 33mHY ALUMINUM ELECTROLYTIC FILTER CAPACITOR RATINGS: - C6 = 0.1uF 250Vac X2-Saftey Cap CLAMP NETWORK 1 VR1 P6KE200A L2 VTP-01001 10uH @ 1.0A D3 MBR160 PRI D1 MUR160 (BYV26C) U3 NEC PS2501-1 T1 TSD-1421 +48.0Vdc @ 250mA 7 1 2 C2 + 100uF 63V D2 1N4148 C R3 182.0K 1% 1/2 OF U3 C R4 10.0K 1% 2 SEC 4 4 A + RTN 8 C4 0.1uF C3 47uF 63V BIAS U1 POWER INT. TOP222Y SOURCE R2 220 3 E 3 C5 47uF + DRAIN 1/2 OF U3 R5 330 1/2W R1 6.2 KELVIN CONNECT CONTROL PROPERLY SIZED HEAT SINK REQUIRED C7 & C8 = 250Vac Y-SAFTEY CAPS EMI FILTER C7 2.2nF C8 2.2nF U2 1 C TL431 R A C9 0.1uF 8 6 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 FLYBACK TRANSFORMER CONTROL DRAWING PREMIER P/N: TSD-1421 REVISION: 05/17/99 ENGR: PETER PHAM REF: TOP222Y SCALE: NONE SHEET: 2 OF 4