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Magnetics

for Texas Instruments LM5025 & LM5034

RoHS compliant


 
  • Specifically developed for use with the Texas Instruments LM5110 Gate Driver and LM5025 Cascaded PWM Controller
  • Specified by Texas Instruments for use with LM5034 Dual Interleaved Controller
  • Low profile, high efficiency planar transformer
  • Planar output choke inductor
Buy Now:
Count Unit price
1 $16.24
1000 $10.52
5000 $8.26

For high volume or non-stock items, request a quote.

. in stock, ready to ship today.
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Typical Application

Works with Texas Instruments LM5110, LM5025

Output Power
3.3 V , 30 A 100 W

Specifications

Electrical specifications at 25°C.

Planar Transformer

Part number 1
(Hover for schematics)
Inductance
min (µH) 2
DCR max (mΩ) 3 Leakage
Inductance
max (µH) 4
Isolation
Voltage (Vrms)
Pri Sec
B0357-BL_ 320 55.0 1.0 0.55 1500

Planar Output Inductor

Part number 5 Inductance (µH) 6
(Tolerance: ±10%)
DCR max (Ω) 7 Isolation
Voltage (V) 8
Isat (A) 9 Irms (A) 10
Main Aux
B0358-CL_   2.0 0.0020 0.90 1500 32.0 36.0
Notes
  1. When ordering, please specify packaging code: e.g. B0357-BLD
  2. Inductance measured on an Agilent/HP 4284 between pins 1 and 2 at 250 kHz, 0.1 Vrms, 0 Adc.
  3. DCR at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
  4. Leakage inductance measured between pins 1 and 2 at 100 kHz, 0.1 Vrms, 0 Adc with secondary pins shorted.
  5. When ordering, please specify packaging code: e.g. B0358-CLD
  6. Inductance measured on an Agilent/HP 4284 between pins 3 and 4 at 250 kHz, 0.1 Vrms.
  7. DCR measured at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
  8. Isolation measured from pin 1 to pin 3.
  9. Isat: DC current at which inductance drops 10% (typ) from its value without current. Details
  10. Irms: Current that causes a 40°C temperature rise from 25°C ambient. Details

Termination:

  • RoHS-compliant. 260°C compatible. Matte tin over nickel over brass terminations.

Packaging:

  • D = 13″ machine ready reel. EIA-481 embossed plastic tape (200 parts per full reel). Quantities less than full reel available: in tape (not machine ready) or with leader and trailer ($25 charge).
  • B = Less than full reel. In an effort to simplify our part numbering system, Coilcraft is eliminating the need for multiple packaging codes. When ordering, simply change the last letter of your part number from B to D.
Environmental
Environmental:
RoHS compliant
Ambient temperature range:
−40°C to +85°C
Storage temperature range:
Component: −40°C to +85°C
Tape and reel packaging: −40°C to +80°C
Failures in Time (FIT) / Mean Time Between Failures (MTBF):

Performance curves

Inductance vs Current (B0358-C Planar Output Inductor)

Inductance vs Frequency (B0358-C Planar Output Inductor)

Schematics

B0357-BL B0358-CL
b0357_schem.gif b0358_schem.gif

Physical characteristics

b0357d.gif

Tape and Reel specification

tapereel_pl.gif

 
Parts per reel Reel dimensions (mm) Tape dimensions (mm) Orientation
13" (330 mm) A B C D E W P Po P1 H T part_or_v.gif
200 330 100 13 50,4 44,4 44 32 4 2 9,4 0,37

General specification

Core Material:
Ferrite
Weight:
11.3 g
Packaging:
200 per 13″ reel Plastic tape: 44 mm wide, 0.37 mm thick, 32 mm pocket spacing, 9.4 mm pocket depth

Soldering/Washing

Moisture Sensitivity Level (MSL):
1 (unlimited floor life at <30°C / 85% relative humidity) Failures in Time (FIT)
Resistance to soldering heat:
Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles
Refer to Soldering Coilcraft Components before soldering.
PCB Washing:
Only pure water or alcohol recommended

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