TABLE 1: ELECTRICAL SPECIFICATIONS AT 25 OC FIGURE 1: SCHEMATIC DIAGRAM SWITCHING TRANSFORMER DESIGNED FOR USE WITH POWER INTEGRATIONS TOP221P (RD7 DEMO BOARD TRANSFORMER TRD1), REFER TO APPLICATION CIRCUIT OF FIGURE 3. PARAMETER MIN. PRIMARY INDUCTANCE (2-1) FREQ. = 100 KHZ @ 0.250Vrms 2.19 SPEC LIMITS TYP. MAX. 2.43 2.67 DOT ON BOBBIN DENOTES PIN #1 1 UNITS mHY PRIMARY 9, 10 2 TURN RATIO'S: SECONDARY (9-6) : PRIMARY (2-1) BIAS (4-3) : PRIMARY (2-1) --------------- PRI LEAKAGE IND. (5-10 SHORTED) FREQ. = 100 KHZ @ 0.250Vrms -------- 1: 19.33 1: 8.29 --------------- -------- 70 + 4% + 4% SECONDARY 3 6, 7 BIAS µHY 4 HIPOT: PRIMARY TO SECONDARY BIAS TO SECONDARY 3000 3000 --------------- --------------- Vrms Vrms APP CIRCUIT PARAMETERS: (1) DC HOT RAIL VOLTAGE OUTPUT VOLTAGE OUTPUT CURRENT CONTINUOUS OUTPUT CURRENT PEAK LINE REGULATION (90 TO 375Vdc) LOAD REGULATION 10-100% RIPPLE 90 -------50 ----------------------------- -------5.0 --------------1.0 1.0 50 375 -------700 800 ---------------------- Vdc Vdc mA mA +% +% +mV 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) 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 GENERAL APPLICATION CIRCUIT OF FIGURE 3. FIGURE 2: PHYSICAL DIMENSIONS mm (INCHES) 10 9 P M PIN #1 WHITE DOT 1 8 7 6 5 TSD-1185 YYWW 2 3 4 18.2 (.716) MAX 16.5 (.650) MAX 3.5 (.138) UL INSULATION SYMBOL AND MANUFACTURER IDENTIFICATION HERE 17.6 (.693) MAX 1 10.5 (.413) 2 3 4 12.5 (.492) 6.0 (.236) TYP 4.5 (.177) TYP 0.6 DIA. (.024) 12.2 (.480) REV. 04/08/98 08/24/98 01/04/99 08/13/99 10 9 8 2.7 (.106) 7 6 5 13.5 (.531) DESCRIPTION OF CHANGES ORIGINAL RELEASE CLARIFY APPLICATION NOTE CORRECT PRI INDUCTANCE PER CUSTOMER DRAWING UPDATE TO UL CLASS (B) 130 INSULATION SYSTEM EE16/EI16, 10-PIN VERTICAL P Premier M Magnetics Inc. "INNOVATORS IN MAGNETICS TECHNOLOGY" UNLESS OTHERWISE SPECIFIED DIMENSIONS ARE IN MM DIMENSIONAL TOLERANCES ARE: DECIMALS ANGLES .X + .25 +0 O 30' .XX + .15 DO NOT SCALE DRAWING FLYBACK TRANSFORMER CONTROL DRAWING PREMIER P/N: TSD-1185 REVISION: 08/13/99 ENGR: AL SANTOS REF: TOP221P APPD: TOM O'NEIL SHEET: 1 OF 6 BY AS PP PP MD APPLICATION NOTES Premier Magnetics' TSD-1185 Switch Mode Transformer was designed for use with Power Integrations, Inc. PWRTOP221P 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%. Premiers' TSD-1185 transformer has been optimized to provide maximum power throughput. The TOPSwitch-II 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 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 3.5 watt application circuit utilizing Power Integrations TOP221P switching regulator in the flyback buck-boost configuration. The component values listed are intended for reference purposes only. Please refer to Power Integrations application notes for the RD7 demo board for more information. FIGURE 3: TOP221P TYPICAL APPLICATION CIRCUIT Fuse Resistor + C1 10nF 1Kv + RF1 1 Ohm HOT RAIL +90 to 375Vdc` RTN C2 + 2.2nF 1KV R1 47K 1/2W 1 D1 UF4005 2 BIAS C6 0.1uF D2 1N4148 U2 SFH615-2 3 DRAIN D C N/C N/C N/C N/C S 1/2 OF U2 + VR1 1N5228B SEC Css C4 + 100uF 25V RTN 6,7 1 A 1/2 OF U2 4 C U1 POWER INT. PWR-TOP221P +5Vdc @ 700mA C3 + 270uF 25V T1 TSD-1084 4 L1 3.3uH D2 1N5822 9,10 PRI C 2 R2 10 R3 100 E CONTROL + Cc 0.1uF C5 470uF 10V S SOURCE HIGH VOLTAGE RETURN P Premier M Magnetics Inc. "INNOVATORS IN MAGNETICS TECHNOLOGY" UNLESS OTHERWISE SPECIFIED DIMENSIONS ARE IN MM DIMENSIONAL TOLERANCES ARE: DECIMALS ANGLES .X + .25 +0 O 30' .XX + .15 DO NOT SCALE DRAWING FLYBACK TRANSFORMER CONTROL DRAWING PREMIER P/N: TSD-1185 REVISION: 08/13/99 ENGR: AL SANTOS REF: TOP221P APPD: TOM O'NEIL SHEET: 2 OF 6