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Cx Family Common Mode Chokes
0402CT Low Profile Chip Inductors
XAL7050 High-inductance Shielded Power Inductors
XGL4020 Ultra-low DCR Power Inductors

DA2257-AL PoE Transformer

for TI LM5071 and LM5072

符合RoHS
  • 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 $2.42
175 $2.07
700 $1.87
1400 $1.57
2800 $1.40
5000 $1.27

对于大批量采购或非库存产品,点击这里请求报价

. 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
Sec1 Sec2 Gate Aux
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 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
Pri Sec1 Sec2 Gate Aux Pri : Sec1 : Sec2 : Gate : Aux
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
  1. When ordering, please specify packaging code: e.g. DA2257-ALD
  2. Inductance is for the primary, measured at 250 kHz, 0.2 Vrms, 0 Adc.
  3. DCR measured at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
  4. Leakage inductance is for the primary winding with all other pins shorted.
  5. 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:

  • 13" reel, machine-ready 
    EIA-481 embossed plastic tape (175 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.
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):
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332

原理图

da2257schematic.gif

物理特性

da2077dimensions.gif

dims_inches_mm.gif

卷装规格

tapereel_pl.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 da2257orientation.gif
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.

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