B0357-BLD Coilcraft, B0357-BLD Datasheet
B0357-BLD
Manufacturer Part Number
B0357-BLD
Description
Planar Magnetics For National Semiconductor LM5025 and LM5034
Manufacturer
Coilcraft
Datasheet
1.B0357-BLD.pdf
(2 pages)
Specifications of B0357-BLD
Lead_time
70
Pack_quantity
200
Comm_code
85045095
1. When ordering, please specify packaging code:
2. Inductance measured on an Agilent/HP 4284 between pins 1 and 2 at
Transformer
B0357-BL_
© Coilcraft, Inc. 2008
0.810
20,57
0.360
9,14
number
Packaging: D = 13″ machine ready reel. EIA-481 embossed plastic
250 kHz, 0.1 Vrms, 0 Adc.
Part
max
max
2
1
1
B = Less than full reel. In tape, but not machine ready. To
power (W)
tape (200 parts per full reel).
have a leader and trailer added ($25 charge), use
code letter D instead.
0.920
23,37
Output
100
max
B0357-BLD
4
3
voltage (V)
Planar Magnetics
Output
0.006 /0,15
3.3
0.400
10,16
Specifications subject to change without notice.
Please check our website for latest information.
Ø
(A rms)
Output
current
0.080
2,03
30.0
0.200
Weight:
Terminations:
Tape and reel:
5,08
2
1
Recommended
Land Pattern
inductance
min (µH)
Primary
11.3 g
Matte tin over nickel over brass
200/13″ reel 44 mm tape width
320.0
0.800
20,32
This planar transformer and planar inductor pair is de-
signed specifically for the National Semiconductor LM5110
Gate Driver and LM5025 Active Clamp Voltage Mode
PWM Controller. These parts are also specified by NSC for
use with their LM5034 Dual Interleaved Controller.
The B0357-B transformer is engineered for use in high
current telecom power supply applications that require
high efficiency in a low-profile package.
The main winding of the B0358-CC inductor serves as an
output choke, while the auxiliary winding controls input
current to the PWM.
Request free evaluation samples by contacting Coilcraft or
visiting www.coilcraft.com.
3. Leakage inductance measured between pins 1 and 2 at 100 kHz,
4. Ambient temperature range: –40°C to +85°C
5. Storage temperature range: Component: –40°C to +85°C
6. Resistance to soldering heat: Three reflows at >217°C for 90 seconds
7. Electrical specifications at 25°C.
0.1 Vrms, 0 Adc with secondary pins shorted.
(+260°C ±5°C for 20 – 40 seconds), allowing parts to cool to room
temperature between.
2
4
3
inductance
max (µH)
0.125
Leakage
3,18
0.55
Ø
0.110
2,79
0.250
6,35
3
For National Semiconductor
LM5025 and LM5034
Packaging: –40°C to +80°C
Document 372-1 Revised 10/31/08
Secondary: 1.0
DCR max
(mOhms)
Primary: 55.0
Pri
2
1
Document 372-1
12 : 2
isolation
Pri/sec
(Vdc)
1500
3
4
Sec
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