參數(shù)資料
型號(hào)： PC500_49
英文描述： National Semiconductor 260 kHz Simple Switcher Inductors
中文描述： 美國(guó)國(guó)家半導(dǎo)體260千赫的SIMPLE SWITCHER電感器
文件頁(yè)數(shù)： 1/1頁(yè)
文件大小： 83K
代理商： PC500_49
PC500.B (5/02)
42
US 858 674 8100
UK 44 1483 401 700
France 33 3 84 35 04 04
Singapore 65 287 8998
Taiwan 886 2 2698 0228
Hong Kong 852 2788 6588
http://www.pulseeng.com
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)
Mechanical
Schematic
-4
-4
==
:
:
,=8<
Weight
. . . . . . . . . . . . . .0.34 grams
Tray
. . . . . . . . . . . . . . . . . .120/tray
Tape & Reel
. . . . . . . . . . . .900/reel
Coplanarity
. . . . . . . . .0.006 inches
Dimensions:
Inches
Unless otherwismm
0,25
Electrical Specifications @ 25°C — Operating Temperature -40°C to +130°C
Ls
1
(μH)
1:20
80
1:30
180
1:40
320
1:50
500
1:60
720
1:70
980
1:100
2000
1:125
3000
Pulse
Number
P8202T
P8203T
P8204T
P8205T
P8206T
P8207T
P8208T
P8209T
Turns ratio
Rs
Terminating
Resistor
2
(
)
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
(
MAX)
0.55
0.87
1.14
1.50
1.75
4.75
5.50
6.50
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 (°C): ~300*(Pcu+Pfe)
5. Reverse polarity parts are available for all turns ratios :
P8222T
through
P8229T
.
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