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HA4000-AL Planar Transformer

for Texas Instruments LM5027

RoHS compliant
  • Developed for use with the TI LM5027 Voltage Mode Active Clamp Controller.
  • Chosen by NSC for T1 on the LM5027 Evaluation Board, and is described in Application Note AN‑1976.
  • Auxiliary winding provides 10 V to the chipset.
Buy Now:
Count Unit price
1 $6.90
1000 $6.25
5000 $5.69

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 LM5027

Input Voltage Output 1 Power Fsw
36 V 78 V 3.3 V , 30 A 99 W 200 kHz

Specifications

Electrical specifications at 25°C.

Part number 2 Inductance
min (µH) 3
DCR max (mΩ) 4 Leakage
Inductance
max (µH) 5
Turns Ratio Isolation
Voltage (Vrms) 6
Pri Sec1 Aux Pri : Sec1 : Sec2 : Aux
HA4000-AL_ 270 56 0.5 294 0.6 1 : 0.083 : 0.083 : 0.583 1500
Notes
  1. Output is with the secondary windings connected in series. Bias winding output is 10 V, 65 mA.
  2. When ordering, please specify a packaging code: HA4000-ALD.
  3. Inductance is for the primary, measured across pins 2 and 4 at 200 kHz, 0.1 Vrms, 0 Adc.
  4. DCR for the primary is measured from pin 2 to pin 4. DCR for the secondary is for each winding.
  5. Leakage inductance is for the full primary and is measured with the secondary shorted.
  6. 1500 Vdc isolation, primary and auxiliary to secondaries.

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).
  • B = Less than full reel
    In tape, but 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
Failures in Time (FIT) / Mean Time Between Failures (MTBF):
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332

Schematics

ha4000s.gif

Physical characteristics

ha4000d.gif



dims_inches_mm-(6).gif

Tape and Reel specification

tapereel_pl-(50).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-(1).gif
200 330 100 13 50,4 44,4 44 32 4 2 9,35 0,37

General specification

Core Material:
Ferrite
Weight:
11.9 g
Packaging:
200/13″ reel Plastic tape: 44 mm wide, 0.37 mm thick, 32 mm pocket spacing, 9.35 mm pocket depth

Soldering/Washing

Moisture Sensitivity Level (MSL):
1 (unlimited floor life at <30°C / 85% relative humidity)
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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