PM-CSXX CURRENT SENSE TRANSFORMERS * Tapped and Untapped Versions RoHS * Designed for Switch Mode Power Supply Applications * Frequency Range from 10KHz to 200KHz * Fully Encapsulated Construction * 2500Vrms Minimum Isolation Voltage * Primary Lead Included ELECTRICAL SPECIFICATIONS AT 25OC - OPERATING TEMPERATURE RANGE -40OC TO +80OC CONTROL VALUES PART NUMBER REFERENCE VALUES INDUCTANCE DCR TURNS LS RS DROOP IPK RT KV NS + 1% (%) (mH Min.) (Ohms Max.) (Amps) (Ohms) (Volt/Amp) CALC. VALUES FLUX FACTOR KB LOSS FACTOR KL 3 -9 SCHEMATIC PM-CS01 PM-CS02 PM-CS03 PM-CS04 50 100 200 300 5.0 20.0 80.0 180.0 0.70 1.40 4.50 11.00 35 50 50 75 15 50 200 300 0.30 0.50 1.00 1.00 2.4 2.0 2.0 1.4 273.97x10 68.49x103 17.12x103 7.61x103 3.31x10 3.33x10-9 3.35x10-9 3.37x10-9 A A A A PM-CS05 PM-CS06 PM-CS07 PM-CS08 50ct 100ct 200ct 300ct 5.0 20.0 80.0 180.0 0.50 1.00 2.00 11.00 35 50 50 75 15 50 200 300 0.30 0.50 1.00 1.00 2.4 2.0 2.0 1.4 273.97x103 68.49x103 17.12x103 7.61x103 3.31x10-9 3.33x10-9 3.35x10-9 3.37x10-9 B B B B REFER TO CALCULATION EXAMPLE FOR PM-CSXX SERIES ON PAGE 2 OF THIS DATA SHEET. 1) REFERENCE VALUES ARE FOR UNIPOLAR OPERATION @ 50KHz, 40% DUTY CYCLE (Dmax = .40). 2) THE MAXIMUM USABLE PEAK SENSE CURRENT (Ipk) IS DEPENDENT ON CORE SATURATION FACTORS AND SHOULD BE EVALUATED FOR THE ACTUAL OPERATING CONDITIONS. SEE APPLICATION DATA AND EXAMPLE ON PAGE 51. 3) THE MAXIMUM RECOMMENDED OPERATING FLUX DENSITY (BOP) @ AN OPERATING TEMPERATURE OF 105OC IS 2000 GAUSS. 4) THE TERM. RESISTOR (Rt) CAN BE VARIED TO ADJUST THE OPERATING FLUX DENSITY (BOP), DROOP, AND SCALE FACTOR (KV). 5) THE SCALE FACTOR (KV) IS PROPORTIONAL TO THE TERMINATING RESISTOR (RT) AND IS EQUAL TO 1VOLT/AMP WHEN RT = NS 6) SECONDARY INDUCTANCE IS MEASURED AT 20KHz, 1.0VRMS. MECHANICAL SCHEMATIC PHYSICAL Dimensions in inches (mm) SCHEMATIC "A" WHITE DOT DENOTES PIN #1 3 1 1 3 1 TURN PRIMARY 2 4 P M PM-CSXX YYWW 2 4 5 5 .900 (22.86) MAX. .700 (17.78) MAX. UNUSED PINS MAY BE OMITTED SCHEMATIC "B" .700 (17.78) MAX. WHITE DOT DENOTES PIN #1 1 3 1 TURN PRIMARY 2 4 5 .150 (3.81) MIN. PINS 3 - 5 .032 (0.8) PINS 1 & 2 .052 (1.3) 2 5 .700 (17.78) TYP. Specifications subject to change without notice. .250 (6.35) TYP. .250 (6.35) TYP. 20381 BARENTS SEA CIRCLE, LAKE FOREST, CA 92630 TEL: (949) 452-0511 FAX: (949) 452-0512 http://www.premiermag.com 1 PM-CSXX CURRENT SENSE TRANSFORMERS RoHS * High Current - Primary Rated for 35 Amps RMS * Frequency Range from 50KHz to 500KHz * Designed for automatic pick and place * Maximum height = 10mm ELECTRICAL SPECIFICATIONS AT 25OC - OPERATING TEMPERATURE RANGE -40OC TO +130OC TURNS NS + 1% PART NUMBER PM-CS21 PM-CS22 PM-CS23 PM-CS24 PM-CS25 PM-CS26 SEC INDUCTANCE (mH Min.) 1 : 30 1 : 50 1 : 70 1 : 100 1 : 200 1 : 300 SEC DCR (Ohms Max.) 0.50 1.40 2.70 5.60 22.0 50.0 0.34 0.57 0.80 1.50 5.00 12.0 HIPOT ( Vr ms ) 35 35 35 35 35 35 500 500 500 500 500 500 MECHANICAL SCHEMATIC 11 PHYSICAL Dimensions in inches (mm) 2 1 TURN PRIMARY PRI CURRENT (Am ps) SECONDARY 12 10 9 8 7 6 4 P PM-CSXX M YYWW RECOMMEND LAYOUT .14 (3.5) .100 (2.54) .050 (1.27) PIN#1 I.D. WHITE DOT 1 6 10 .090 (2.30) 2 3 4 5 9.65 (.38) MAX 5 1 .27 (7.0) .028 (0.70) .27 (7.0) .100 (2.54) 12.9 (.508) .61 (15.50) 12.9 (.508) 19.5 (4.95) MAX Specifications subject to change without notice. 20381 BARENTS SEA CIRCLE, LAKE FOREST, CA 92630 TEL: (949) 452-0511 FAX: (949) 452-0512 http://www.premiermag.com 2 PM-CSXX CURRENT SENSE TRANSFORMERS RoHS * High Current -Primary Rated * Frequency Range up to 1MHz * Designed for automatic pick and place * Withstands Solder Reflow ELECTRICAL SPECIFICATIONS AT 25OC - OPERATING TEMPERATURE RANGE -40OC TO +130OC PART NUMBER PM-CS31 PM-CS32 PM-CS33 PM-CS34 PM-CS35 PM-CS36 PM-CS37 PM-CS38 PM-CS39 TURNS NS + 1% SEC INDUCTANCE (H Min.) 1 : 70 1 : 40 1 : 30 1 : 20 1 : 50 1 : 60 1 : 100 1 : 125 1 : 200 980 320 180 80 500 720 2000 3000 6700 PRI CURRENT (Am ps) SEC DCR (Ohms Max.) 4.75 1.14 0.87 0.55 1.50 1.75 5.50 6.50 35.0 HIPOT ( Vr ms ) 6 6 6 6 6 6 6 6 10 500 500 500 500 500 500 500 500 500 MECHANICAL SCHEMATIC PHYSICAL Dimensions in mm (inches ) 6 5 8 4 P M 8 1 1 TURN PRIMARY PM-CSXX YYWW SECONDARY 7 3 7 1 2 3 RECOMMEND LAYOUT 6.0 (.236) MAX 2.6 (.102) CORE CLAMP 5.3 (.208) MAX 1.85 (.073) 2-PL 1.3 (.051) 1.27 (.005) 6-PL 1.85 (.073) 2.0 (.078) 0.6 (.023) 1.27 (.05) .5 (.02) TYP 3.0 (.118) 1.5 (.06) 6-PL 7.6 - 8.0 (.300-.315) Specifications subject to change without notice. 20381 BARENTS SEA CIRCLE, LAKE FOREST, CA 92630 TEL: (949) 452-0511 FAX: (949) 452-0512 http://www.premiermag.com 3 PM-CSXX CURRENT SENSE TRANSFORMERS RoHS * High Current -Primary Rated * Frequency Range up to 1MHz * Designed for automatic pick and place * Withstands Solder Reflow ELECTRICAL SPECIFICATIONS AT 25OC - OPERATING TEMPERATURE RANGE -40OC TO +130OC PART NUMBER PM-CS40 PM-CS41 PM-CS42 PM-CS43 PM-CS44 PM-CS45 PM-CS46 PM-CS47 PM-CS48 TURNS NS + 1% SEC INDUCTANCE (H Min.) 1 : 20 1 : 30 1 : 40 1 : 50 1 : 60 1 : 70 1 : 100 1 : 125 1 : 200 65 145 264 410 590 805 1650 2570 6600 SEC DCR (Ohms Max.) 0.50 0.75 1.05 1.65 2.00 3.00 5.40 6.70 33.30 PRI CURRENT (Am ps) 20 20 20 20 20 20 20 20 20 MECHANICAL 5 RECOMMEND LAYOUT 8 1.5 1.85 1.5 7 7 1 1 TURN PRIMARY 4 8 500 500 500 500 500 500 500 500 500 SCHEMATIC P PM-CSXX M YYWW 6 HIPOT ( Vr ms ) SECONDARY 3 3.0 1.25 1 2 3 6.2 M AX 2.54 2.70 CORE CLAM P 4.2 MA X 1.8 2.0 TYP 0.6 1.0 TYP PHYSICAL Dimensions in mm Specifications subject to change without notice. 8.2 M AX 20381 BARENTS SEA CIRCLE, LAKE FOREST, CA 92630 TEL: (949) 452-0511 FAX: (949) 452-0512 http://www.premiermag.com 4 PM-CSXX CURRENT SENSE TRANSFORMERS RoHS * High Current -Primary Rated * Operating Frequency Range up to 100KHz * Designed for automatic pick and place * Withstands Solder Reflow ELECTRICAL SPECIFICATIONS AT 25OC - OPERATING TEMPERATURE RANGE -40OC TO +130OC PART NUMBER PM-CS50 PM-CS51 PM-CS52 PM-CS53 PM-CS54 PM-CS55 TURNS NS + 1% SEC INDUCTANCE (mH Min.) 1 : 30 1 : 50 1 : 70 1 : 100 1 : 200 1 : 300 0.20 0.55 1.10 2.10 9.00 20.0 SEC DCR (Ohms Max.) 0.25 0.65 1.40 3.00 8.00 20.0 PRI CURRENT (Am ps) HIPOT ( Vr ms ) 20.0 20.0 20.0 20.0 20.0 20.0 MECHANICAL 500 500 500 500 500 500 SCHEMATIC RECOMMEND LAYOUT P PM-CSXX M YYWW 5.0 6 5 4 7 1.6 1 TURN PRIMARY 2.6 8 1 2 8 4.7 7 2.5 6 SECONDARY 4 2.55 1.27 3 9.5 MAX 7.0 MAX 2.5 0.35 PHYSICAL Dimensions in mm 1.0 TYP 11.5-12.7 Specifications subject to change without notice. 20381 BARENTS SEA CIRCLE, LAKE FOREST, CA 92630 TEL: (949) 452-0511 FAX: (949) 452-0512 http://www.premiermag.com 5 PM-CSXX CURRENT SENSE TRANSFORMERS RoHS APPLICATION EXAMPLE APPLICATION EXAMPLE GIVEN: Part# = PM-CI02 Peak Current (IPK) = 30.0 Amps Terminating Resistor (RT) = 100 Ohms Operating Frequency (f) = 100KHz Duty Cycle (Dmax) = .40 (40% on time) CALCULATE THE SCALE FACTOR From the Table the Secondary Turns are: NS = 100 THEN: KV = RT / NS = 100 / 100 = 1 volt/amp CALCULATE OPERATING FLUX DENSISTY From the Table the FLUX FACTOR is: KB = 68.49 x 103 ESTIMATE ERROR DUE TO LOSSES From the Table the Secondary DCR is: RS = 1.40 Ohms Maximum Flux Utilization Constant (KF) is: 1.0 For Unipolar Operation 2.0 For Bipolar Operation From the Table the approximate Loss Factor is: KL = 3.33 x 10-9 THEN: BOP = KB x IPK x RT x (Dmax / KF x f) Note: The loss factor (KL) is valid approximation from10KHz to 200KHz = 68.49x103 x 30 x 100 x (.4 / 1 x 100x103) Secondary Copper Losses are: P_lossS = (IPK / NS )2 x RS = 822 gauss (OK less than 2000 gauss) = (30/100)2 x 1.40 CALCULATE PULSE DROOP = 0.126 Watt From the Table the Secondary Inductance is: LS = 20mHy Minimum Core losses are: P_lossC = KL2 x f 1.621 x BOP2.569 Note: The actual droop is dependent on the actual LS in the circuits enviorment. = (3.33x10-9)2 x (100x103)1.621 x 8222.569 = 0.0435 Watt Droop Exponent (D) = RT x Dmax / (LS x f) Output Power is: = 100 x .4 / (20x10-3 x 100x103) P_outS = (IPK / NS )2 x RT = 0.020 = (30/100)2 x 100 THEN: %_Droop = (1-e-D) x 100 = 1.98 % OK less than 10% (Depending on the application Droop to 20% may be acceptable) = 9.00 Watt THEN: %_Error = [(P_lossS + P_lossC ) / P_out] x 100 = [(.126 + .0435) / 9] x 100 = 1.88 % Specifications subject to change without notice. 20381 BARENTS SEA CIRCLE, LAKE FOREST, CA 92630 TEL: (949) 452-0511 FAX: (949) 452-0512 http://www.premiermag.com 6