TABLE 1: ELECTRICAL SPECIFICATIONS AT 25 OC FIGURE 1: SCHEMATIC DIAGRAM SWITCHING TRANSFORMER DESIGNED FOR USE WITH POWER INTEGRATIONS PWR-TOP243YAI. REFER TO APPLICATION CIRCUIT OF FIGURE 3. PARAMETER MIN. PRIMARY INDUCTANCE (2-1) VOLTAGE = 0.250Vrms FREQUENCY = 100 KHZ 520 SPEC LIMITS TYP. MAX. 550 UNITS 580 WHITE DOT DENOTES PIN #1 HY 1 8 7 PRIMARY TURN RATIO'S: SEC : PRIMARY (2-1) -------- 1:21.0 -------- + 3% BIAS (3-4) : PRIMARY (2-1) -------- 1:6.46 -------- + 3% PRI LEAKAGE IND (SEC'S SHORTED) VOLTAGE = 0.250Vrms FREQUENCY = 100 KHZ -------- -------- 50 2 SECONDARY 3 HY 6 5 BIAS 4 HIPOT: PRIMARY TO SECONDARIES BIAS TO SECONDARIES 3000 3000 --------------- --------------- Vrms Vrms APP CIRCUIT PARAMETERS: (1) AC LINE VOLTAGE 47/400 Hz OUTPUT VOLTAGE EACH OUTPUT OUTPUT CURRENT CONTINUOUS OUTPUT CURRENT PEAK LINE REGULATION (85 TO 265Vac) LOAD REGULATION 25-100% RIPPLE 85 -------0.050 ----------------------------- -------3.3 --------------1.25 1.50 200.0 265 -------4.0 4.5 ---------------------- Vac +Vdc Amps Amps +% +% +mV NOTE1: REINFORCED INSULATION SYSTEM, UL1950, IEC950, CSA-950: A) ALL MATERIALS MEET "UL", "CSA" & "IEC" REQUIREMENTS B) TRIPLE BASIC INSULATED SECONDARY. C) VARNISH FINISHED ASSEMBLY. (1) REFER TO APPLICATION CIRCUIT OF FIGURE 3. FIGURE 2: PHYSICAL DIMENSIONS mm (INCHES) WHITE DOT DENOES PIN#1 8 7 6 5 1 2 3 4 20.4 (.803) MAX CORE TAPED 17.2 (.677) MAX UL INSULATION SYMBOL AND MANUFACTURER IDENTIFICATION HERE 18.8 (.740) MAX P TSD-2023 M YYWW 6.5 (.256) 6.0 1.3 (.051) (.236) 1 2 0.8 (.032) 5.08 6-PLACES (.200) 3 4 12.7 (.500) 8 7 6 REV. DESCRIPTION OF CHANGES BY 09/21/04 10/18/04 ORIGINAL RELEASE UPDATE WITH LEAKAGE INDUCTANCE PP PP 5 UNLESS OTHERW ISE SPECIFIED DIMENSIONS ARE IN MM DIMENSIONAL TOLERANCES ARE: DECIMALS ANGLES .X + .25 +0 O 30' .XX + .15 DO NOT SCALE DRAW ING TRANSFORMER CONTROL DRAWING PREMIER P/N: TSD-2023 REVISION: 10/18/04 DRAWN BY: PETER PHAM REF: PWR-TOP243Y SCALE: NONE SHEET: 1 OF 4 APPLICATION NOTES Premier Magnetics' TSD-2023 Switch Mode Transformer was designed for use with Power Integrations, Inc. TOP243Y off-line PWM switching regulator in the Flyback Buck-Boost circuit configuration. This conversion topology can provide isolated multiple outputs with efficiencies up to 95%. Premiers' TSD-2023 transformer has been optimized to provide maximum power throughput. Below is a universal input high precision 13.5 watt application circuit utilizing Power Integrations TOP243Y 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. The TVS clamp VR1 may need to be modified based on actual end circuit temperature rise considerations. FIGURE 3: TYPICAL LOW COST APPLICATION CIRCUIT F1 3.1A 250v BR1 KBP04M 400V, 1.5A EMI FILTER LINE 1 ~ 2 C1 47 uF 400V 4 3 ~ - C6 = 0.1uF 250Vac X2-Saftey Cap CLAMP NETWORK T1 TSD-2023 1 VR1 (P6KE-200) D3 MBR10100 U3 7,8 2 C2* 10V D2 1N4148 4 C + 1 1/2 OF U3 A R3 1.6K 1% C R4 5.0K 1% 2 SEC 3 NEC2501-H L2 VTP-01005 10uH @ 5.0A PROPERLY SIZED HEAT SINK PRI D1 MUR160 R 2M PREMIER MAGNETICS PART NUMBERS: (REQUEST DATA SHEETS BY PART#) L1 = PMCE-0330 33mHy EMI/RFI CMC T1 = TSD-2023 MAIN SWITCHING TRANSFORMER L2 = VTP-01005 [email protected]([email protected]) INDUCTOR C2*: RIPPLE CURRENT = 4000mA MINIMUM + C6 0.1uF NEUT HOT RAIL +115 to 375Vdc + 85-265Vac 50/60Hz L1 PMCE-0330 33mHY R2 330 1W BIAS U1 POWER INT. TOP243Y PROPERLY SIZED HEAT SINK D R2 510 4 E 3 C5 47uF + L 1/2 OF U3 R1 6.2 SOFT START S R 13M KELVIN CONNECT X F C R 20.5 C3 + 120uF 10V RTN 5,6 C4 0.1uF +3.3Vdc @ 4.0A C7 & C8 = 250Vac Y-SAFTEY CAPACITORS EMI FILTER C7 2.2nF Css + 4.7uF C8 2.2nF 1 U2 C TL431 R A C9 0.1uF 8 6 HIGH VOLTAGE RETURN UNLESS OTHERW ISE SPECIFIED DIMENSIONS ARE IN MM DIMENSIONAL TOLERANCES ARE: DECIMALS ANGLES .X + .25 +0 O 30' .XX + .15 DO NOT SCALE DRAW ING TRANSFORMER CONTROL DRAWING PREMIER P/N: TSD-2023 REVISION: 10/18/04 DRAWN BY: PETER PHAM REF: PWR-TOP243Y SCALE: NONE SHEET: 2 OF 4