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LPD8035V-333 Miniature
Coupled Inductor

  • Designed in TI’s LM5160 and LM5017 Fly-Buck™ reference designs (PMP15005 and PMP15006)
  • Learn more abut TI’s Multi-Output Fly-Buck Regulator from this article on How2Power.com
  • Ultra-small package size 8.0 × 6.4 × 3.5 mm
  • Suitable to operate in ambient temperatures as high as 125°C
  • Tight coupling coefficient: K = 0.98
  • RoHS-compliant, halogen free
  • 1500 Vrms, one minute isolation (hipot) between windings
  • Applications: Flyback transformer, Coupled inductor in SEPIC applications
    and Common mode filter choke

SPECIFICATIONS


 For Flyback Applications See SEPIC specifications
Part number1
Click to get parts
Inductance
at 0 A2
±20% (µH)
Inductance
at Ipk3
±20% (µH)
DCR (Ohms)4 Isolation5
(Vrms)
Leakage6
L typ (µH)
Turns
ratio
Ipk3
typ max
LPD8035V-333MR_ 33 24.8 0.62 0.66 1500 0.35 1 : 1 1.0
1 When ordering, please specify packaging code: e.g. LPD8035V-333MEC
Packaging:

 

C = 7" machine-ready reel
EIA-481 embossed plastic tape (350 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 C instead.
D = 13" machine-ready reel
EIA-481 embossed plastic tape. Factory order only, not stocked (1500 parts per full reel).
2 Inductance shown for each winding, measured at 100 kHz, 0.1 Vrms, 0 Adc on an Agilent/HP 4284A LCR meter or equivalent.
3 Peak primary current drawn at minimum input voltage.
4 DCR is for each winding. DCR at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
5 Designed to provide Basic Insulation; does not protect against electrical shock; nor intended for the isolation of SELV circuits from Hazardous Voltage circuits measured from primary to secondary for one minute.
6 Leakage inductance is for L1 and is measured with L2 shorted.
7 Ambient temperature range: −40°C to +85°C with Irms current.
8 Storage temperature range: Component: −40°C to +125°C
Tape and reel packaging: −40°C to +80°C
9 Maximum part temperature: +125°C (Ambient + temperature rise)
10 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.
11 Electrical specifications at 25°C.
Refer to Soldering Coilcraft Components before soldering.
 For SEPIC Applications See Flyback specifications
Part number1
Click to get parts    
L ±20%2
(µH)
DCR
max3
(Ohms)
SRF
typ4
(MHz)
Coupling
coefficient
typ
Isolation5
(Vrms)
Leakage
L typ6
(µH)
Isat7
(A)
Irms (A)
both
windings8
one
winding9
LPD8035V-333MR_ 33 0.66 12.6 0.98 1500 0.35 0.60 0.52 0.73
1 When ordering, please specify packaging code: e.g. LPD8035V-333MRC
Packaging:

 

C = 7" machine-ready reel
EIA-481 embossed plastic tape 750 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 C instead.
D = 13" machine-ready reel
EIA-481 embossed plastic tape. Factory order only, not stocked (2500 parts per full reel).
2 Inductance shown for each winding, measured at 100 kHz, 0.1 Vrms, 0 Adc on an Agilent/HP 4284A LCR meter or equivalent. When leads are connected in parallel, inductance is the same value. When leads are connected in series, inductance is four times the value
3 DCR is for each winding. When leads are connected in parallel, DCR is half the value. When leads are connected in series, DCR is twice the value. DCR at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
4 SRF measured using an Agilent/HP 4191A or equivalent. When leads are connected in parallel, SRF is the same value.
5 Designed to provide Basic Insulation; does not protect against electrical shock; nor intended for the isolation of SELV circuits from Hazardous Voltage circuits measured from primary to secondary for one minute.
6 Leakage inductance is for L1 and is measured with L2 shorted.
7 Isat: DC current, at which the inductance drops 30% (typ) from its value without current. It is the sum of the current flowing in both windings.
8 Irms, both windings: Equal current when applied to each winding simultaneously that causes a 40°C temperature rise from 25°C ambient. This information is for reference only and does not represent absolute maximum ratings. Determine temperature rise.
9 Irms, one winding: Current when applied to one winding that causes a 40°C temperature rise from 25°C ambient. This information is for reference only and does not represent absolute maximum ratings.
Determine temperature rise.
10 Ambient temperature range: −40°C to +85°C with Irms current.
11 Storage temperature range: Component: −40°C to +125°C
Tape and reel packaging: −40°C to +80°C
12 Maximum part temperature: +125°C (Ambient + temperature rise)
13 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.
14 Electrical specifications at 25°C.
Refer to Soldering Coilcraft Components before soldering.
PCB washing: Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info.

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Updated: June 06, 2017