Datasheet 3D Model

NA5743-AL Flyback Transformer

for Linear Technology LT8584

Developed for Linear Technology LT8584 Isolated Monolithic Active Cell Balancer
Input: 2 – 8 V; Outputs: 10 – 35 V, 30 – 80 V and 100 – 400 V
AEC-Q200 Grade 1 (−40°C to +125°C)

Buy Now:

Count	Unit price
1	$6.56
200	$5.36
600	$2.41
1200	$1.87
2400	$1.61

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

Packaging

D = 13" machine-ready reel

. in stock, ready to ship today.

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Typical Application

Works with Analog Devices LT8584

Input Voltage	Output	Power	Fsw
2 V — 8 V	80 V	12 W	150 kHz

Specifications

Electrical specifications at 25°C.

Part number 1 (Hover for schematics)	Inductance at 0A (µH) (Tolerance: ±10%)	Inductance min at 7 A (µH) 2	DCR max 3		Leakage Inductance max (µH) 4	Turns Ratio 5	Isolation Voltage (Vrms) 6
Part number 1 (Hover for schematics)	Inductance at 0A (µH) (Tolerance: ±10%)	Inductance min at 7 A (µH) 2	Pri (Ω)	Sec (mΩ)	Leakage Inductance max (µH) 4	Pri : Sec	Isolation Voltage (Vrms) 6
NA5743-ALD	4.0	3.6	0.012	500.000	0.116	1 : 4	1500

Notes

When ordering, please specify packaging code: e.g. NA6252-ALD
Peak primary current drawn at minimum input voltage.
DCR for the primary is with the windings connected in parallel, measured at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
Inductance is for the primary, measured at 150 kHz, 0.1 Vrms, 0 Ad.
Turns ratios are with the primary windings connected in parallel.
1500 Vrms, one minute isolation from primary to secondary windings.

Termination:

RoHS-compliant. Tin-silver (96.5/3.5) over tin over nickel over phos bronze terminations. Other terminations available at additional cost.

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 +125°C

Storage temperature range:

e Component: –40°C to +125°C
Tape and reel packaging: –40°C to +80°C

Maximum part temperature:

+125°C (ambient + temp rise)

Failures in Time (FIT) / Mean Time Between Failures (MTBF):

See FIT/MTBF Calculations

Schematics

Primary windings to be connected
in parallel on the PC board

Physical characteristics

Tape and Reel specification

Parts per reel	Reel dimensions (mm)					Tape dimensions (mm)						Orientation
13" (330 mm)	A	B	C	D	E	W	P	Po	P1	H	T
200	330	100	13	38,4	32,4	32	24	4	2	11,2	0,5

General specification

Core Material:

Ferrite

Weight:

3.9 – 4.2 g

Packaging:

200 per 13″ reel Plastic tape: 32 mm wide, 0.5 mm thick, 24 mm pocket spacing, 11.2 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:

Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info.

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NA5743-AL Flyback Transformer

for Linear Technology LT8584

Selected configuration not available

Typical Application

Specifications

Termination:

Packaging:

Schematics

Physical characteristics

Tape and Reel specification

General specification

Soldering/Washing

Warning