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A9786-AL Planar Magnetics

for TI LM5041

RoHS compliant
  • Specially developed for use with the Texas Instruments LM5041 Cascaded PWM Controller
  • Low profile, high efficiency planar transformer
  • Planar output chokeinductor
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Specifications

Electrical specifications at 25°C.

Transformer

Part number 1 Power (W) Input Voltage (V) Inductance
min (mH) 2
DCR max (mΩ) 3 Leakage
Inductance
max (µH) 4
Isolation
Voltage (Vrms)
Secondary
Output (V, A)
Pri Sec Aux
A9786-AL_ 150 36 75 1.25 62.5 0.91 200 0.90 1100 2.5 V , 60 A

Output Inductor

Part number 5 Inductance (µH) 6 DCR max (Ω) Isolation
Voltage (V) 7
Isat (A) 8 Irms (A) 9
A9787-AL_   57 0.017 1100 8.1 12.0
Notes
  1. When ordering, please specify packaging code: e.g.A9786-ALD
  2. Inductance measured on an Agilent/HP 4284 between pins 1 and 3 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 3 at 100 kHz, 0.1Vrms, 0 Adc with all secondary pins shorted.
  5. When ordering, please specify packaging code: e.g. A9787-ALD.
  6. Inductance measured on an Agilent/HP 4284 at 250 kHz, 0.1 Vrms.
  7. Isolation measured from pins 1,2 to the core.
  8. DC current at which inductance drops 10% (typ) from its value without current. Details
  9. . Current that causes a 40°C 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 RS-481 clear plastic tape (125 parts per full reel).
  • B = Less than full reel
    In tape, not machine ready. To have a leader and trailer added ($25 charge), use code letter D instead.
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

Performance curves

Inductance vs Current (A9787-A Planar Output Inductor)

Inductance vs Frequency (A9787-A Planar Output Inductor)

Schematics

Planar Transformer                                                      Planar Output Inductor


lm5041schematic.gif

Physical characteristics

lm5041dimesion.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 lm5041orientation.gif
125 330 100 13 62,4 56,4 56 40 4 2 11,6 0,42  

General specification

Weight:
33.4 g
Packaging:
125/13″ reel 56 mm tape

Soldering/Washing

Resistance to soldering heat:
Three reflows at >217°C for 90 seconds (+260°C ±5°C for 20 – 40 seconds), allowing parts to cool to room temperature between.
Refer to Soldering Coilcraft Components before soldering.
PCB Washing:
Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. Other solvents

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