TABLE 1: ELECTRICAL SPECIFICATIONS AT 25 OC FIGURE 1: SCHEMATIC DIAGRAM SWITCHING TRANSFORMER DESIGNED FOR USE WITH POWER INTEGRATIONS TOP247Y . REFER TO APPLICATION CIRCUITS OF FIGURE 3. PARAMETER PRIMARY INDUCTANCE (4-1) VOLTAGE = 0.250Vrms FREQUENCY = 100 KHZ WHITE DOT ON BOBBIN DENOTES PIN #1 SPEC LIMITS MIN. TYP. MAX. UNITS 300 350 µHY 320 2 SHIELD 1 12 PRIMARY TURN RATIO'S: SEC (7-9) : PRIMARY (4-1) SEC (10-12) : PRIMARY (4-1) BIAS (5-6) : PRIMARY (4-1) PRI LEAKAGE IND. (SEC SHORTED) VOLTAGE = 0.250Vrms FREQUENCY = 100 KHZ ---------------------- 1:8.25 1:8.25 1:6.6 ---------------------- + 3% + 3% + 3% 4 10 5 9 -------- -------- 16.0 µHY BIAS 6 HIPOT: PRIMARY TO SECONDARY BIAS TO SECONDARY FIGURE 3A CIRCUIT PARAMETERS: (1) AC LINE VOLTAGE 60 Hz OUTPUT VOLTAGE OUTPUT CURRENT CONTINUOUS OUTPUT CURRENT PEAK LINE REGULATION (85 TO 265Vac) LOAD REGULATION 10-100% RIPPLE 3000 3000 --------------- --------------- Vrms Vrms 85 -------25.0 --------------0.20 0.20 50.0 265 Vac Vdc Amps Amps +% +% +mV 0.0 ----------------------------- 2.5 3.0 ---------------------- 7 NOTE1: 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. FIGURE 2: PHYSICAL DIMENSIONS mm (INCHES) 12 11 10 9 8 7 P TSD-1943 M YYWW PIN #1 WHITE DOT 1 2 3 4 5 6 31.50 (1.240) MAX CORE TAPED 26.50 (1.043) MAX 29.00 (1.142) MAX 1 2 3 5.00 (.197) 4 5 25.00 (.984) 0.8 DIA. (.032) 6 4.0 (.157) MIN UNLESS OTHERWISE SPECIFIED DIMENSIONS ARE IN MM DIMENSIONAL TOLERANCES ARE: DECIMALS ANGLES .X + .25 +0 O 30' .XX + .15 DO NOT SCALE DRAWING 20.0 (.787) REV. 12/18/03 01/15/04 DESCRIPTION OF CHANGES ORIGINAL RELEASE CORRECT ON SCHEMATICS ON SEC'S TRANSFORMER CONTROL DRAWING PREMIER P/N: TSD-1943 REVISION: 01/15/04 DRAWN BY: PETER PHAM REF:TOP247Y SCALE: NONE SHEET: 1 OF 4 BY PP PP APPLICATION NOTES Premier Magnetics' TSD-1943 Switch Mode Transformer was designed for use with Power Integrations, Inc. TOP247Y off-line PWM switching regulator in the Flyback Buck-Boost circuit configuration. This conversion topology can provide isolated multiple outputs with efficiencies up to 82%. Premiers' TSD-1943 transformer has been optimized to provide maximum power. The PWR-TOPXXX series from Power Integrations, Inc. are self contained 132KHz 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 high precision 62.5 watt application circuit utilizing Power Integrations TOP247Y switching regulator in the flyback buck-boost configuration. The component values listed are intended for reference purposes only. Properly sized heat sinks for the TOP2XX & D3 as well as proper thermal management of the clamp network are critical requirements for efficient and reliable operation. FIGURE 3: TYPICAL APPLICATION CIRCUIT CY1 R4 1 90-132Vac 50/60Hz C3 EMI FILTER L1 PMCE-0100 10mHY R5 2 CX1 4 3 ~ - C1 C2 R6 L D TOP247Y S X C 5 6 T1 TSD-1943 RTN D6 C6 R11 R9 C4 R8 C 10 C9 U2 R10 F +25Vdc @ 2.5A 12 4 R1 NEUT GND 7 D7 C7 C8 PINS 9& 10 TIE 1 D5 L6 L4 2 VR1 ~ + BR1 600V, 2A LINE F1 3.1A R7 R18 L2 VTP-01002 L3 C5 C12 U3 R13 1% C11 R 12 R14 1% L5 PREMIER MAGNETICS PART NUMBERS: (REQUEST DATA SHEETS BY PART#) T1 = TSD-1943 MAIN SWITCHING TRANSFORMER L1 = PMCE-0100 10mHy EMI/RFI CMC L2 = VTP-01002 [email protected]([email protected]) INDUCTOR OTHER PART LIST TOP247Y R1 = 2MOhm, .5W; R4, R5, R6 = 2.7M Ohm; R7 = 220Ohm R8 = 15Oh; R9= 6.8Ohm; R10 = 470Ohm; R11 = 1KOhm R12 = 4.7KOhm; R13 = 38.3KOhm; R14 = 10KOhm C1= 100uF, 400V; C2 = 20nF, 1KV; C34.7nF, 1KV; C4 = 100nF; C5 = 47uF, 10V C6 = 1uF, 50V; C7 = C8 = 680uF, 50V; C9 = 220uF, 35V; C10 = 100nF C11 = 47nF; C12 = 22uF, 25V VR1 = P6KE200 D5 = UF4005, D6 = 1N4148, D7 = MBR20100 U2 = LTV817A, U3 = TL431 L3, L4, L5, L6 = BEAD (L3, L4, L6 = 1T, L5 = 3T) BEADS L3 & L4 ARE PLACE ON D7 ANODE LEADS 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-1943 REVISION: 01/15/04 DRAWN BY: PETER PHAM REF:TOP247Y SCALE: NONE SHEET: 2 OF 4