TSD-737 - Premier Magnetics

TABLE 1: ELECTRICAL SPECIFICATIONS AT 25
O
C
FIGURE 1: SCHEMATIC DIAGRAM
SWITCHING TRANSFORMER DESIGNED FOR USE WITH POWER INTEGRATIONS
TOP223Y. REFER TO APPLICATION CIRCUIT OF FIGURE 3.
PARAMETER
MIN.
PRIMARY INDUCTANCE (2-1)
VOLTAGE = 0.250Vrms
FREQUENCY = 100 KHZ
950
SPEC LIMITS
TYP.
MAX.
1060
WHITE DOT ON TOP
OF BOBBIN DENOTES PIN #1
UNITS
1
µHY
1170
PRIMARY
TURN RATIO'S:
SECONDARY (8-7) : PRIMARY (2-1)
BIAS (3-4) : PRIMARY (2-1)
PRI LEAKAGE IND. (7-8 SHORTED)
VOLTAGE = 0.250Vrms
FREQUENCY = 100 KHZ
---------------
1:6.083
1:14.60
---------------
+ 3%
+ 3%
--------
30.0
45.0
µHY
2
3
8
SECONDARY
7
BIAS
4
HIPOT:
PRIMARY TO SECONDARY
BIAS TO SECONDARY
APP CIRCUIT PARAMETERS: (1)
AC LINE VOLTAGE 47/400 Hz
OUTPUT VOLTAGE
OUTPUT CURRENT CONTINUOUS
OUTPUT CURRENT PEAK
LINE REGUALTION (85 TO 265Vac)
LOAD REGULATION .50 to 1.00A
VOLTAGE @ 0.0A EXT LOAD
3000
3000
---------------
---------------
Vrms
Vrms
85
-------15.0
--------------1.0
2.5
17.0
265
Vac
Vdc
Amps
Amps
%
%
Vdc
0.0
0.0
1.0
2.0
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.
(1) REFER TO APPLICATION CIRCUIT OF FIGURE 3.
FIGURE 2: PHYSICAL DIMENSIONS mm (INCHES)
8
7
6
5
P TSD-737
M YYWW
PIN #1
WHITE DOT
1
2
3
4
23.00
(.906)
MAX
CORE
TAPED
18.00
(.709)
MAX
UL INSULATION
SYMBOL AND
MANUFACTURER
IDENTIFICATION
HERE
21.00
(.827)
MAX
1
2
5.00
(.197)
3
4
4.0
(.157)
MIN
6.10
(.240)
MAX
11.50
(.453)
MIN
12.50
(.492)
0.8 DIA.
(.032)
REV.
6/12/97
10/10/98
04/14/99
09/19/00
12/13/00
DESCRIPTION OF CHANGES
UPDATED TO TOP223 IC. NO OTHER CHANGES
UPDATED TO ADD UL 1950 & CE-950 APPROVAL & MARKING
UPDATED TO UL CLASS (B) 130 INSULATION SYSTEM
CORRECT R1 ON FIG 3 APPLICATION CIRCUIT
BY
TO
TO
MD
PP
CORRECT SEC. DWGS FROM 12 TURNS TO 12 TURNS BIFILAR, ADDED BIAS MARGIN TAPE
MD
EI22/19/6, 8-PIN VERTICAL BOBBIN
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-737
REVISION: 12/13/00
DRAWN BY: TOM O'NEIL
REF: 38-0027-00
SCALE: NONE
SHEET: 1 OF 6
APPLICATION NOTES
Premier Magnetics' TSD-737 Switch Mode Transformer was designed for use with Power Integrations, Inc. TOP223Y
three terminal off-line PWM switching regulator in a low cost Isolated Flyback Buck-Boost circuit configuration.
The feedback implementation is accomplished indirectly by regulating the bias winding voltage. This is the
lowest cost topology but has the drawback of poor load regulation. As such this topology is intended for use
where load power is fairly constant. Resistor R2 provides an output clamp to prevent output voltage runaway
and possible circuit damage under a no load condition.
The 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 switch mode controlled 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 15 watt application circuit utilizing Power Integrations TOP223 switching regulator in the
isolated flyback buck-boost configuration. The component values listed are intended for reference purposes
only.
FIGURE 3: TYPICAL APPLICATION CIRCUIT
BR1
KBP04M
400V, 1.5A
EMI FILTER
F1
3.1A
250v
LINE
85-265Vac
50/60Hz
~ +
2
HOT RAIL
+100 to 375Vdc
C1
47 uF
400V
C6
0.1uF
4
NEUT
3
+
1
L1
PMCU-0330
33mHY
~ -
C6 = 0.1uF 250Vac
X2-Saftey Cap
CLAMP
NETWORK
VR1
P6KE200A
D1
MUR160
PREMIER MAGNETICS PART NUMBERS:
(REQUEST DATA SHEETS BY PART#)
L1 = PMCU-0330 33mHy EMI/RFI CMC
T1 = TSD-737 MAIN SWITCHING TRANSFORMER
L2 = VTP-01001 10uHy, 1.0Amp INDUCTOR
C1, 47.0 uF, 400V
Low Profile Type:
Nichicon # UVS2G470MRA, 85C
Nichicon # URT2G470MRA, 105C
Diameter=18mm (.708)
Length=25mm (.984)
T1
TSD-737
1
PRI
8
2
+
D2
1N4148
SEC
3
7
R1
100
L2
VTP-01001
10uH @ 1.0A
D3
MUR610CT
C2
220uF
25V
+
C3
220uF
25V
+15Vdc
@ 1.0A
R2
1.5K
1/4W
C4
+
220uF
25V
RTN
BIAS
4
U1
POWER INT.
TOP223Y
SOURCE
+
DRAIN
C5
47uF
KELVIN CONNECT
CONTROL
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-737
REVISION: 12/13/00
DRAWN BY: TOM O'NEIL
REF: 38-0027-00
SCALE: NONE
SHEET: 2 OF 6