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Introduction
Specifications
Environmental
Performance curves
Schematics
Physical characteristics
Tape & Reel
Soldering/Washing

3D Model Datasheet

No-Opto Flyback Transformer

AC1584-AL

The AC1584-AL no-opto flyback transformer is designed for the EVL8017-L-00B PoE PD Flyback converter evaluation board from Monolithic Power. It has no auxiliary winding, specifically designed for active-clamp, primary side regulation (PSR) in a flyback topology. The AC1584-AL is optimized for a 37 – 57 V input voltage range and generates an output at 5 V, 2.4 A.

Optimized for MP8017 Active clamp Flyback converter for Monolithic Power.
Designed to meet IEEE802.3af standard for 13 W POE PD converters and operates with 37 – 57 V input
1500 Vrms, one minute isolation (hipot) between primary and secondary

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Typical Application

Works with Monolithic Power MP8017

Input Voltage	Output	Power	Fsw
37 V — 57 V	5 V , 2.4 A	13 W	100 kHz

Specifications

Electrical specifications at 25°C.

Part number (Hover for schematics)	Inductance at 0A (µH) 1 (Tolerance: ±10%)	Isat (A)	DCR max (Ω) 2			Leakage Inductance max (µH) 3	Turns Ratio	Isolation Voltage (Vrms) 4
Part number (Hover for schematics)	Inductance at 0A (µH) 1 (Tolerance: ±10%)	Isat (A)	Pri	Sec1	Sec2	Leakage Inductance max (µH) 3	Pri : Sec1 : Sec2	Isolation Voltage (Vrms) 4
AC1584-ALD	55	1.8	0.195	0.024	0.018	1.25	1 : 0.208 : 0.208	1500

Notes

Inductance is for the primary, measured at 100 kHz, 0.1 Vrms, 0 Adc.
DC current that causes the primary inductance drop 30% from its value without current.
Leakage inductance is for the primary winding with the secondary windings shorted.
1500 Vrms, one minute isolation (hipot) between primary and secondary.

Termination:

RoHS tin-silver-copper over tin over nickel over phos bronze. Other terminations available at additional cost.

Packaging:

D = 13″ machine-ready reel. EIA-481 embossed plastic tape (300 parts per full reel). Quantities less than full reel available: in tape (not machine ready) or with leader and trailer ($25 charge).

Environmental

Environmental:

RoHS compliant

Ambient temperature range:

–40°C to +85°C

Storage temperature range:

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

Maximum part temperature:

+125°C (ambient + temperature rise)

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

See FIT/MTBF Calculations

Performance curves

L vs Current

Schematics

Connect pin 5 to 6 and pin 7 to 8 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
300	330	100	13	38,4	32,4	32	20	4	2	10,69	0,5

General specification

Core Material:

Ferrite

Weight:

2.1 g

Packaging:

300/13″ reel Plastic tape: 32 mm wide, 0.50 mm thick, 20 mm pocket spacing, 10.69 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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No-Opto Flyback Transformer

AC1584-AL

Selected configuration not available

Typical Application

Specifications

Termination:

Packaging:

Performance curves

L vs Current

Schematics

Physical characteristics

Tape and Reel specification

General specification

Soldering/Washing

Warning