SMT CURRENT SENSE
TRANSFORMERS
For DC/DC Converter Applications
Primary rated for 10 amps
Full selection of turns ratios
Pick and place compatible
Optimal performance @ 100 kHz and above
Low profile - height is .19" (4,83 mm)
Electrical Specifications @ 25擄C 鈥?Operating Temperature -40擄C to +130擄C
Pulse
Number
P8202T
P8203T
P8204T
P8205T
P8206T
P8207T
P8208T
P8209T
Turns ratio
1:20
1:30
1:40
1:50
1:60
1:70
1:100
1:125
Ls
1
(碌H)
80
180
320
500
720
980
2000
3000
Rs
(鈩?MAX)
0.55
0.87
1.14
1.50
1.75
4.75
5.50
6.50
Terminating
Resistor
2
(鈩?
2.0
3.0
4.0
5.0
6.0
7.0
10.0
12.5
HiPot
(Vrms)
500
500
500
500
500
500
500
500
NOTES:
1. Inductance at 0.1 Vac, 10 kHz.
2. Terminating resistor for 1 V out with 10 amps peak in the primary.
3. The operating temperature range includes the ambient temperature and the temperature rise.
4. The temperature rise of the component is calculated based on the total core and copper loss:
Copper loss (W) : Pcu = (Ipk/Ns)
2
*(Dmax/3)*Rs.
Core loss (W) : Pfe=1.3*10
-17
*f(Hz)
1.63
*B(Gauss)
2.45
Bmax(Gauss) = 3.75*10
9
*(Ipk*Rt/Ns+Vd)*Dmax/(k*Ns*f), where f is in Hz, k=1 for unipolar and 2 for bipolar waveform. Keep Bmax below 2000 Gauss.
Temperature rise (擄C): ~300*(Pcu+Pfe)
5. Reverse polarity parts are available for all turns ratios :
P8222T
through
P8229T.
Mechanical
Schematic
.190
4,83 NOM
.010
0,25
.330
8,38 MAX
Pin 7
3
2
1
Pin 8
BOTTOM VIEW
.106
2,69
.100
2,54
.060
1,52
4
5
6
.024
0,61
.120
3,05
.284
7,21 MAX
.073
1,85
.073
1,85 NOM
8
7
1
3
.050
1,27
.050
1,27
Weight
. . . . . . . . . . . . . .0.34 grams
Tray
. . . . . . . . . . . . . . . . . .120/tray
Tape & Reel
. . . . . . . . . . . .900/reel
Coplanarity
. . . . . . . . .0.006 inches
Dimensions:
Inches
mm
Unless otherwise specified, all tolerances are 鹵 .010
0,25
RECOMMENDED PAD LAYOUT
US 858 674 8100
鈥?/div>
UK 44 1483 401 700
鈥?/div>
France 33 3 84 35 04 04
鈥?/div>
Singapore 65 287 8998
鈥?/div>
Taiwan 886 2 2698 0228
鈥?/div>
Hong Kong 852 2788 6588
鈥?/div>
http://www.pulseeng.com
PC500.B (5/02)
42
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