TABLE 1: ELECTRICAL SPECIFICATIONS AT 25 OC FIGURE 1: SCHEMATIC DIAGRAM SWITCHING TRANSFORMER DESIGNED FOR USE WITH POWER INTEGRATIONS TNY-255 REFER TO APPLICATION CIRCUIT OF FIGURE 3. SPEC LIMITS MIN. TYP. MAX. PARAMETER DOT ON BOBBIN DENOTES PIN #1 UNITS (HOT RAIL) 1 PRIMARY INDUCTANCE (1-4) FREQ. = 100 KHZ @ 0.250Vrms 3800 4000 4200 10 (+24V) HY PRIMARY 110 to 390Vdc TURN RATIO'S: SECONDARY (5-10) : PRIMARY (1-4) PRI LEAKAGE IND. (10-5 SHORTED) FREQ. = 100 KHZ @ 0.250Vrms HIPOT: PRIMARY TO SECONDARY APP CIRCUIT PARAMETERS: (1) AC INPUT VOLTAGE DC HOT RAIL VOLTAGE OUTPUT VOLTAGE OUTPUT CURRENT CONTINUOUS LINE REGULATION (85 TO 265Vac) LOAD REGULATION 10-100% RIPPLE -------- 1: 7.08 -------- + 4% -------- -------- 100.0 HY 3000 -------- -------- Vrms 85 110 --------------24 -------0.50 0.30 75.0 265 375 Vac Vdc Vdc mA +% +% +mV 10 ---------------------- 400 ---------------------- (1) REFER TO APPLICATION CIRCUIT OF FIGURE 3. SECONDARY 24V @400mA (DRAIN) 4 5 (24V RETURN) NOTE1: REINFORCED INSULATION SYSTEM, UL1950, IEC950, CSA-950: 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. E) UL1950 & CSA-950 CERTIFIED: FILE #E162344. F) UL CLASS (B) 130 INSULATION SYSTEM PM130-R1, PM130-H1, PM130-H1A (UL FILE #E177139) OR ANY UL AUTHORIZED CLASS (B) INSULATION SYSTEM. FIGURE 2: PHYSICAL DIMENSIONS mm (INCHES) 10 9 P M PIN #1 WHITE DOT 1 8 7 6 5 PNY-24004 YYWW 2 3 4 18.2 (.716) MAX 16.5 (.650) MAX UL INSULATION SYMBOL AND MANUFACTURER IDENTIFICATION HERE 3.5 (.138) 1 10.5 (.413) 2 3 4 18 (.709) MAX 6.0 (.236) TYP 4.5 (.177) TYP 0.6 DIA. (.024) 10 9 P M 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 7 6 5 13.5 (.531) 12.5 (.492) RoHS 8 2.7 (.106) REV. 06/01/99 DESCRIPTION OF CHANGES ORIGINAL RELEASE BY PP 10/04/99 01/12/00 UPDATE TO UL CLASS (B) 130 INSULATION SYSTEM UPDATE TO UL RECOGNIZED FILE #E162344 MD MD 06/06/01 12/10/01 CORRECTED PIN # ON TURN RATIO UPDATED NEW DIMENSIONS ON DRAW ING LL MP FLYBACK TRANSFORMER CONTROL DRAWING PREMIER P/N: PNY-24004 REVISION: 12/10/01 DRAWN BY: PETER PHAM REF: TNY-255 SCALE: NONE SHEET: 1 OF 2 APPLICATION NOTES Premier Magnetics' PNY-24004 Switch Mode Transformer was designed for use with Power Integrations, Inc. TNY255 off-line burst mode regulator in the Flyback Buck-Boost circuit configuration. This conversion topology will provide an isolated output with efficiencies up to 90%. Premiers' PNY-XXXX series transformers has been optimized to provide maximum power throughput. The TNYXXX series from Power Integrations, Inc. are self contained 40 or 130KHz burst mode switching regulators. This series contains all necessary functions for an off-line switched mode control DC power source. These burst mode switching regulators provide a very simple solution to off-line low power (<10W) designs. The inductors and transformer used with the TNYXXX 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 9.6 watt application circuit utilizing Power Integrations TNY255 switching regulator in the flyback buck-boost configuration. Proper thermal managment of the TNY255 & D5 is required for reliable operation. The TNY255 should be mounted on > 0.75 in2, 2oz copper clad to provide a proper heat sink starting point for evaluation. The component values listed are intended for reference purposes only. Careful evaluation by the end user is required and should be based on the actual application & it's associated environmental conditions. FIGURE 3: TYPICAL APPLICATION CIRCUIT ALUMINUM ELECTROLYTIC FILTER CAPACITOR RATINGS: C1 : > 400V, Ripple Rated > 125mA @ 120Hz @ Max. Operating Temp. (Nichicon P/N URT2G330MRA, 105C) C2 : > 35V, Ripple Rated > 480mA @ 100KHz @ Max. Op. Temp. (Panasonic P/N ECA1VFG331, 105C) C3 : > 35V, (Panasonic P/N ECA1AFG221, 105C) PREMIER MAGNETICS PART NUMBERS: (REQUEST DATA SHEETS BY PART#) L1 = PMCU-5220 22mHy MinatureEMI/RFI CMC T1 = PNY-24004 MAIN SWITCHING TRANSFORMER L2 = VTP-01001 10uHy, 1.0Amp INDUCTOR F1 1A 250v LINE 1 MOV NEUT L1 PMCU-5220 22mHY ~ 2 + C5 33 uF 400V C4 0.1uF 4 HOT RAIL +110 to 375Vdc 3 ~ C1, 33.0 uF, 400V Low Profile Type: Nichicon # UVS2G330MRA, 85C Nichicon # URT2G330MRA, 105C Diameter=18mm (.708) Length=25mm (.984) + 85-265Vac 50/60Hz BR1 DF06M 600V, 1A EMI FILTER - C4 = 0.1uF 250Vac X2-Saftey Cap T1 PNY-24004 CLAMP NETWORK 1 C2 + SEC 1500uF 35V PRI 4 D E S S S S + 5 C3 220uF 35V RTN 4 U1 POWER INT. TNY-255 PROPERLY SIZED HEAT SINK DRAIN +24Vdc @ 400mA 10 VR2 P6KE200A D2 MUR160 (BYV26C) L2 VTP-01001 10uH @ 1.0A D1 MURD310 C U3 LTV817 1 A R1 68 ENABLE C E 2 3 B S SOURCE C1 0.1uF 1KV VR1 23.3V HIGH VOLTAGE RETURN P M 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 FLYBACK TRANSFORMER CONTROL DRAWING PREMIER P/N: PNY-24004 REVISION: 12/10/01 DRAWN BY: PETER PHAM REF: TNY-255 SCALE: NONE SHEET: 2 OF 2