TABLE 1: ELECTRICAL SPECIFICATIONS AT 25 OC FIGURE 1: SCHEMATIC DIAGRAM SWITCHING TRANSFORMER DESIGNED FOR USE WITH POWER INTEGRATIONS PWR-TOP210PFI REFER TO APPLICATION CIRCUIT OF FIGURE 3. PARAMETER MIN. PRIMARY INDUCTANCE (2-1) VOLTAGE = 0.250Vrms FREQUENCY = 100 KHZ 3.40 SPEC LIMITS TYP. MAX. 4.00 DOT ON BOBBIN DENOTES PIN #1 UNITS 4.60 1 mHY PRIMARY TURN RATIO'S: SECONDARY (8-5) : PRIMARY (2-1) BIAS (3-4) : PRIMARY (2-1) PRI LEAKAGE IND. (8-5 SHORTED) VOLTAGE = 0.250Vrms FREQUENCY = 100 KHZ HIPOT: PRIMARY TO SECONDARY BIAS TO SECONDARY APP CIRCUIT PARAMETERS: (1) AC LINE VOLTAGE 47/400 Hz OUTPUT VOLTAGE NOMINAL OUTPUT CURRENT CONTINUOUS (2) OUTPUT CURRENT PEAK LINE REGULATION (102 TO 318Vac) LOAD REGULATION 10-100% RIPPLE --------------- 1:12.18 1:26.80 --------------- + 4% + 4% -------- 83.0 100.0 µHY 2 3 8 SECONDARY 5 BIAS 4 3000 3000 --------------- --------------- Vrms Vrms 85 -------14.0 --------------3.00 6.00 20.0 318 Vac Vdc mA mA +% +% +mV 20 ----------------------------- 210 300 ---------------------- 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. D) UL1950 & CSA-950 CERTIFIED: FILE #E162344. E) UL CLASS (B) 130 INSULATION SYSTEM PM130-R1, PM130-H1, PM130-H1A (UL FILE #E177139) OR ANY UL AUTHORIZED CLASS (B) INSULATION SYSTEM. (1) REFER TO APPLICATION CIRCUIT OF FIGURE 3. (2) WITH R3 OPTIONAL CLAMP RESISTOR IS PLACE FIGURE 2: PHYSICAL DIMENSIONS mm (INCHES) WHITE DOT DENOES PIN#1 8 7 6 5 1 2 3 4 16.8 (.661) MAX CORE TAPED 3.5 (.137) MIN 15.5 (.610) MAX P TSD-946 M YYWW 14.5 (.571) MAX 1.3 (.051) 1 3.0 (.118) 3 2 3.8 (.150) P Premier M Magnetics Inc. 8 7 6 ∅ 0.6 (.024) 4 11.0 (.433) EE16/EI16, 8-PIN HORIZONTAL UL INSULATION SYMBOL AND MANUFACTURER IDENTIFICATION HERE REV. 11/04/96 05/24/99 DESCRIPTION OF CHANGES ORIGINAL RELEASE UPDATED TO UL CLASS (B) 130 INSULATION SYSTEM BY TO MD 5 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-946 REVISION: 05/24/99 DRAWN BY: TOM O'NEIL REF: PWR-TOP210PFI SCALE: NONE SHEET: 1 OF 6 APPLICATION NOTES Premier Magnetic's TSD-946 Switch Mode Transformer was designed for use with Power Integrations, Inc. PWRTOP210PFI 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%. Premier'S TSD-946 transformer has been optimized to provide maximum power throughput. 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, 3 watt application circuit utilizing Power Integrations PWR-TOP210 switching regulator in the flyback buck-boost configuration. This circuit provides +14Vdc at 210mA continuous and is capable of 300mA peak for short periods of time. This circuit represents the lowest cost implementation and utilizes the bias winding for feedback control. As such the line & load regulation are worse than that which could be achieved by utilizing an opto-coupler to sense the actual outputs. The component values listed are intended for reference purposes only. Resistor R1 may be adjusted up to 100 Ohms and down to 10 Ohms. As R1 increases in value the output voltage will increase, and vice-versa, thus allowing some fine adjustment on the initial output voltage. The EMI/RFI capacitors C7 & C8 are shown for reference but may not be needed to meet EMI/RFI emmision specifications. Clamp resistor R3 is recommended to stabalize the circuit during a no load condition. FIGURE 3: TYPICAL APPLICATION CIRCUIT PREMIER MAGNETICS PART NUMBERS: (REQUEST DATA SHEETS BY PART#) L1 = PMCU-0330 33mHy EMI/RFI CMC T1 = TSD-946 MAIN SWITCHING TRANSFORMER L2 = VTP-01001 10uHy, 1.0Amp INDUCTOR F1 1.5A 250v BR1 DF06S 600V, 1.0A EMI FILTER LINE 1 L1 PMCU-0330 33mHY ~ 2 + ALUMINUM ELECTROLYTIC FILTER CAPACITOR RATINGS: +14V OUTPUT: C2 >25V, Ripple Rated > 230mA @ 100KHz @ Max. Op. Temp. PANASONIC FA SERIES: LOW IMPEDANCE LONG LIFE RADIAL SERIES C2 = 220uF, 25V = PANASONIC ECA1EFG221 C3 = 100uF, 16V = PANASONIC ECA1CFG101 HOT RAIL +130 to 445Vdc C1, 22.0 uF, 450V Nichicon # UVS2W220MDA, 85C Diameter=16mm (.630) Length=31.5mm (1.240) + C1 22 uF 450V 102-318Vac 50/60Hz C6 0.1uF 4 NEUT 3 ~ - C6 = 0.1uF 250Vac X2-Saftey Cap CLAMP NETWORK 1 VR1 P6KE250A PRI D1 MUR160 8 2 R1 22Ω + D2 1N4148 5 BIAS DRAIN D C N/C N/C N/C N/C S C2 220uF 25V +14Vdc @ 200mA R2 (1) 330 1W C3 + 100uF 16V SEC 3 U1 POWER INT. PWR-TOP210PFI L2 VTP-01001 10uH @ 1.0A D3 MBR160 4 RTN NOTE: (1) R3 CLAMP RESISTOR REQUIRED IF A NO LOAD CONDITION CAN OCCUR AT OUTPUT T1 TSD-946 CONTROL + S SOURCE C5 47uF 10V C7 & C8 = 250Vac Y-SAFTEY CAPACITORS EMI FILTER C7 2.2nF C8 2.2nF HIGH VOLTAGE RETURN P Premier M Magnetics Inc. 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-946 REVISION: 05/24/99 DRAWN BY: TOM O'NEIL REF: PWR-TOP210PFI SCALE: NONE SHEET: 2 OF 6