3D Model Datasheet

DA2257-AL PoE Transformer

for TI LM5071 and LM5072

Developed for Texas Instruments LM5071 and LM5072 PD Controllers
Specified in TI application note AN-1430
Designed to operate in continuous mode at 250 kHz with input voltage of 14 – 60 V
Can accept 12 V input from auxiliary sources.
Dual secondaries, separate aux and gate windings
Industry standard EP13 surface mount package
Coilcraft's DA2383-AL and FA2519-AL are also specified by TI for LM5071 and LM5072
The FA2677-AL is specified by TI for LM5072

立即购买:

计数	单价
1	$2.57
175	$2.36
700	$2.14
1400	$1.79
2800	$1.59
5000	$1.45

对于大批量采购或非库存产品，点击这里请求报价。

Packaging

D = 13" machine-ready reel

. 现货，可今天发货.

索取样品:

典型应用

与Texas Instruments LM5071一起使用

输入电压	输出				功率	Fsw
输入电压	Sec1	Sec2	Gate	Aux	功率	Fsw
14 V — 60 V	3.3 V , 2 A	5 V , 1 A	5.5 V , 0.05 A	10 V , 0.05 A	11.6 W	250 kHz

规格

Electrical specifications at 25°C.

零件号 1 (Hover for schematics)	0A时的电感 (µH) 2 (公差: ±10%)	最小电感 2.7 A (µH)	DCR max (Ω) 3					最大漏电感 (µH) 4	匝数比	隔离电压 (Vrms) 5
零件号 1 (Hover for schematics)	0A时的电感 (µH) 2 (公差: ±10%)	最小电感 2.7 A (µH)	Pri	Sec1	Sec2	Gate	Aux	最大漏电感 (µH) 4	Pri : Sec1 : Sec2 : Gate : Aux	隔离电压 (Vrms) 5
DA2257-AL_	35.0	30.0	0.062	0.010	0.018	0.138	0.225	0.95	1 : 0.167 : 0.278 : 0.278 : 0.5	2000

注释

When ordering, please specify packaging code: e.g. DA2257-ALD
Inductance is for the primary, measured at 250 kHz, 0.2 Vrms, 0 Adc.
DCR measured at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
Leakage inductance is for the primary winding with all other pins shorted.
2000 Vrmsisolation from primary and aux to secondaries.

端子:

RoHS-compliant. 260°C compatible. Tin-silver over tin over nickel over phos bronze terminations. Other terminations available at additional cost.

包装:

D = 13″ machine-ready reel. EIA-481 embossed plastic tape (175 parts per full reel). Quantities less than full reel available: in tape (not machine ready) or with leader and trailer ($25 charge).
B = Less than full reel. In an effort to simplify our part numbering system, Coilcraft is eliminating the need for multiple packaging codes. When ordering, simply change the last letter of your part number from B to D.

环境

环境:

符合RoHS

环境温度范围:

–40°C to +85°C

储存温度范围:

Component: –40°C to +85°C.
Tape and reel packaging: –40°C to +80°C

故障率（FIT）/平均故障间隔时间（MTBF）:

See FIT/MTBF Calculations

原理图

物理特性

卷装规格

Parts per reel	Reel dimensions (mm)					Tape dimensions (mm)						Orientation
13" (330 mm)	A	B	C	D	E	W	P	Po	P1	H	T
175	330	100	13	38,4	32,4	32	28	4	2	12,93	0,5

一般规格

核心材料:

Ferrite

重量:

6.35g

包装:

175 per 13″ reel. Plastic tape: 32 mm wide, 0.5 mm thick, 28 mm pocket spacing, 12.93 mm pocket depth

焊接/清洗

湿气敏感度等级（MSL）:

1 (unlimited floor life at <30°C / 85% relative humidity)

抗焊接热:

Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles

焊接之前，请参阅焊接线艺元件。

PCB清洗:

Tested with pure water or alcohol only. More Info.

仓库

语言设定

货币设定

DA2257-AL PoE Transformer

for TI LM5071 and LM5072

所选配置不可用

典型应用

规格

端子:

包装:

原理图

物理特性

卷装规格

一般规格

焊接/清洗

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警告