TABLE 1: ELECTRICAL SPECIFICATIONS AT 25 OC FIGURE 1: SCHEMATIC DIAGRAM 1 PARAMETER MIN. SPEC LIMITS TYP. PRIMARY INDUCTANCE (1-3) VOLTAGE = 0.250Vrms FREQUENCY = 10 KHZ 120 130 MAX. UNITS 140 HY PRIMARY#1A 12 2 11 PRIMARY#1B SECONDARY HIP OT: PRIMARY TO SECONDARY 3750 -------- -------- Vrms 3 8 CHECK TURN RATIO PER WDG SPEC 5 7 AUX 6 FIGURE 2: PHYSICAL DIMENSIONS mm (INCHES) 1.835 (46.61) 2.065 (52.45) WHITE DOT DENOTES PIN#1 P M .787 (20.00) TYP TSD-2629 YYWW 1.660 (42.16) .045 SQ. (1.14) .300 (7.62) .18 (4.6) 1.500 (38.10) REMOVE PIN 4, 9 & 10 .300 (7.62) 1 6 NOTE1: A) ALL MATERIALS RATED 130C OR BETTER. B) MARGIN TAPE FOR 6.0mm MIN CREEPAGE. C) VARNISH FINISHED ASSEMBLY. 1.500 (38.10) REV. 01/07/09 12 DESCRIPTION OF CHANGES ORIGINAL RELEASE 7 1.500 (38.10) UNLESS OTHERW ISE 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-2629 REVISION: 01/07/09 DRAWN BY: PETER PHAM REF: SCALE: NONE SHEET: 1 OF 2 BY PP APPLICATION NOTES Premier Magnetics TSD-2629 Switch Mode Transformer was designed for use with Power Integrations, Inc. Premiers PTSD-2629 transformer has been optimized to provide maximum power throughput. The PWR-TOPXXX series from Power Integrations, Inc. are self contained 132KHz. 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 260 watt application circuit utilizing Power Integrations PWR-TOP261EN switching regulator in the flyback buck-boost configuration. The component values listed are intended for reference purposes only. Properly sized heat sinks for the TOP & D3 as well as proper thermal management & board layout are critical requirements for efficient and reliable operation. FIGURE 3: TYPICAL APPLICATION CIRCUIT F1 3.1A 250v BR1 DF06M 600V, 1A EMI FILTER LINE 1 L1 PMCE-0160 16mHY ~ 2 + C1 680 uF 400V + 110/220Vac 50/60Hz C6 0.1uF 4 NEUT 3 ~ - C6 = 0.1uF 250Vac X2-Saftey Cap D3 MBR20100CT CLAMP NETWORK L2 VTP-02007 20uH @ 7.0A PROPERLY SIZED HEAT SINK T1 TSD-2629 +57Vdc @ +4.55A 1 C15 10nF P6KE200A 5.6K D1 BYV26D C8, C9 + 840uF 100V PRI R3 232K 1% + R4 10.70K 1% SEC U1 POWER INT. TOP227Y RTN R2 1.33K 5 19.6M C10 470uF 75V 3 D2 1N4148 PROPERLY SIZED HEAT SINK + 5.2M BIAS C7 0.1uF 6 L D TOP261EN S X U3 NEC2501-H C 6.81 F 1 U2 C TL431 R 6.98K + 47uF A C7 15nF 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 DRAWING TRANSFORMER CONTROL DRAWING PREMIER P/N: TSD-2629 REVISION: 01/07/09 DRAWN BY: PETER PHAM REF: SCALE: NONE SHEET: 2 OF 2