TSD-825 - Premier Magnetics

TABLE 1: ELECTRICAL SPECIFICATIONS AT 25 OC
FIGURE 1: SCHEMATIC DIAGRAM
SWITCHING TRANSFORMER DESIGNED FOR USE WITH POWER INTEGRATIONS
TOP221P REFER TO APPLICATION CIRCUIT OF FIGURE 3
PARAMETER
MIN.
PRIMARY INDUCTANCE (2-1)
VOLTAGE = 0.250Vrms
FREQUENCY = 100 KHZ
3.48
SPEC LIMITS
TYP.
MAX.
4.00
4.52
DOT ON BOBBIN
DENOTES PIN #1
UNITS
1
mHY
PRIMARY
TURN RATIO'S:
SECONDARY (8-5) : PRIMARY (2-1)
BIAS (4-3) : PRIMARY (2-1)
PRI LEAKAGE IND. (8-5 SHORTED)
VOLTAGE = 0.250Vrms
FREQUENCY = 100 KHZ
---------------
1: 8.375
1:14.889
---------------
+ 3%
+ 3%
--------
--------
120.0
µHY
2
8
SECONDARY
3
5
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 REGULATION (85 TO 265Vac)
LOAD REGULATION 10-100%
RIPPLE
3000
3000
---------------
---------------
Vrms
Vrms
85
-------12.0
--------------1.50
5.00
50.0
265
Vac
Vdc
mA
mA
+%
+%
+mV
0.0
-----------------------------
300
400
----------------------
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)
WHITE DOT
DENOES PIN#1
8
7
6
5
1
2
3
4
16.8
(.661)
MAX
CORE
TAPED
3.5
(.137)
MIN
P
M
15.5
(.610)
MAX
TSD-825
YYWW
1.3
(.051)
1
3.0
(.118)
3
2
UL INSULATION
SYMBOL AND
MANUFACTURER
IDENTIFICATION
HERE
14.5
(.571)
MAX
3.8
(.150)
∅ 0.6
(.024)
4
11.0
(.433)
EE16/EI16, 8-PIN HORIZONTAL
8
7
P Premier
M Magnetics Inc.
6
5
UNLESS OTHERWISE SPECIFIED
DIMENSIONS ARE IN MM
DIMENSIONAL TOLERANCES ARE:
DECIMALS
ANGLES
.X
+ .25
+0 O 30'
.XX + .15
DO NOT SCALE DRAWING
REV.
02/15/96
05/15/97
04/21/99
DESCRIPTION OF CHANGES
CORRECTED PIN-PIN SPACING & MAX WIDTH
UPDATED TO TOP221P, NO OTHER CHANGES
UPDATE TO UL CLASS (B) 130 INSULATION SYSTEM
TRANSFORMER CONTROL DRAWING
PREMIER P/N: TSD-825
REVISION: 04/21/99
DRAWN BY: TOM O'NEIL
REF: TOP221P
SCALE: NONE
SHEET: 1 OF 6
BY
TO
TO
MD
APPLICATION NOTES
Premier Magnetics' TSD-825 Switch Mode Transformer was designed for use with Power Integrations, Inc.
TOP221P 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-825
transformer has been optimized to provide maximum power throughput.
The TOP2XX 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, 4 watt application circuit utilizing Power Integrations TOP221 switching regulator in
the flyback buck-boost configuration. This circuit provides +12Vdc at 300mA continuous and is capable of
400mA 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 voltages 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.
FIGURE 3: TYPICAL APPLICATION CIRCUIT
BR1
DF04S
400V, 1.0A
EMI FILTER
F1
1.5A
250v
LINE
1
L1
PMCU-0220
22mHY
~ +
2
HOT RAIL
+110 to 375Vdc
C1, 22.0 uF, 400V
Low Profile Type:
Nichicon # UVS2G220MRA, 85C
Nichicon # URT2G220MRA, 105C
Diameter=18mm (.708)
Length=20mm (.787)
C1
22 uF
400V
+
85-265Vac
50/60Hz
C6
0.1uF
4
NEUT
3
~ -
PREMIER MAGNETICS PART NUMBERS:
(REQUEST DATA SHEETS BY PART#)
L1 = PMCU-0220 22mHy EMI/RFI CMC
T1 = TSD-825 MAIN SWITCHING TRANSFORMER
L2 = VTP-01001 10uHy, 1.0Amp INDUCTOR
C6 = 0.1uF 250Vac
X2-Saftey Cap
CLAMP
NETWORK
1
VR1
P6KE180A
PRI
D1
MUR160
8
2
R1
15
L2
VTP-01001
10uH @ 1.0A
D3
MBR360
+
D2
1N4148
SEC
4
5
C2
330uF
16V
+12Vdc
@ 300mA
C3
+
100uF
16V
RTN
BIAS
DRAIN
U1
POWER INT.
TOP221P
D
C
N/C
N/C
N/C
N/C
S
3
T1
TSD-825
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-825
REVISION: 04/21/99
DRAWN BY: TOM O'NEIL
REF: TOP221P
SCALE: NONE
SHEET: 2 OF 6