Datasheet > DA2257-AL_

DA2257-AL_

更新时间： 2024-11-28 01:19:35

品牌	Logo	应用领域
线艺 - COILCRAFT		/
页数	文件大小	规格书
1页	136K
描述
Flyback Transformer

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中文翻译

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数据手册

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DA2257-AL_ 数据手册

Document 509

For TI LM5071 & LM5072

Flyback Transformer PD Controllers

• Dual-output ﬂyback transformer for Power over Ethernet

• Operates in continuous mode at 250 kHz with 14 – 60 V input

• 2000Vrms isolation from primary and auxiliary to secondaries

Core material Ferrite

Terminations RoHS compliant tin-silver over tin over nickel over phos

bronze. Other terminations available at additional cost.

Weight 6.35g

Ambient temperature –40°C to +85°C

Storage temperature Component: –40°C to +85°C.

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

Resistance to soldering heat Max three 40 second reﬂows at

+260°C, parts cooled to room temperature between cycles

Moisture Sensitivity Level ꢁMSLH 1 (unlimited ﬂoor life at <30°C /

85% relative humidity)

Failures in Time ꢁFITH / Mean Time Between Failures ꢁMTBFH

38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332

Packaging 175 per 13″ reel. Plastic tape: 32 mm wide, 0.5 mm thick,

28 mm pocket spacing, 12.93 mm pocket depth

PCB washing Tested with pure water or alcohol only. For other solvents,

see Doc787_PCB_Washing.pdf

Part

L at 0 A²

±±0ꢀ ꢁ(µH

L at Ipk³

min ꢁ(µH

DCR max

ꢁOhmsH

Leakage L⁴

max ꢁ(µH

Turns

ratios

Ipk³

ꢁAH

number¹

Outputs

DA2257-AL_

35.0

30.0

0.225 (aux)

0.138 (gate)

0.010 (sec 1)

0.018 (sec 2)

0.062 (pri)

0.95

2 :1 (pri:aux)

3.6 :1 (pri:gate)

6 :1 (pri:sec1)

3.6 :1 (pri:sec 2)

2.7

10 V, 0.05 A (aux)

5.5 V, 0.05 A (gate)

3.3 V, 2.0 A (sec 1)

5.0 V, 1.0 A (sec 2)

1. When ordering, please specify packaging code:

DA2257-ALD

2. Inductance is for the primary, measured at 250 kHz, 0.2 Vrms, 0 Adc.

3. Ipk is peak primary current drawn at minimum input voltage.

4. Leakage inductance is for the primary winding with all other pins

shorted.

Packaging: D = 13″ machine-ready reel. EIA-481 embossed plastic

tape (175 parts per full reel).

5. Electrical speciﬁcations at 25°C.

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.

Dot above pin1

Gate

Pri

0.500

12,70

max

Sec 1

0.004/0,10

0.039

1,00

0.699

17,75

max

Aux

Sec 2

0.050

1,27

0.028

0.512

13,00

0.061

1,55

0.590

14,99

0,70

0.530

13,46

Recommended

Land Pattern

max

0.098

2,50

0.098

2,50

inches

Dimensions are in

Document 509 Revised 10/29/08

US +1-847-639-6400 sales@coilcraft.com

UK +44-1236-730595 sales@coilcraft-europe.com

Taiwan +886-2-2264 3646 sales@coilcraft.com.tw

China +86-21-6218 8074 sales@coilcraft.com.cn

Singapore + 65-6484 8412 sales@coilcraft.com.sg

This product may not be used in medical or high

risk applications without prior Coilcraft approval.

Specification subject to change without notice.

Please check web site for latest information.

中文翻译

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与DA2257-AL_相关器件

型号	品牌	获取价格	描述	数据表
DA2257-ALB	COILCRAFT	获取价格	SMPS Transformer, ROHS COMPLIANT
DA2257-ALD	COILCRAFT	获取价格	SMPS Transformer, ROHS COMPLIANT
DA225-B-B-B	Carling Technologies	获取价格	Toggle Switch, SPST, On-off, Latched, Wire Terminal, Bat Type Actuator, Panel Mount-thread
DA225-B-B-W	Carling Technologies	获取价格	Toggle Switch, SPST, Latched, Wire Terminal, Bat Type Actuator, Panel Mount-threaded
DA225-B-W-B	Carling Technologies	获取价格	Toggle Switch, SPST, Latched, Wire Terminal, Bat Type Actuator, Panel Mount-threaded
DA225-B-W-W	Carling Technologies	获取价格	Toggle Switch, SPST, Latched, Wire Terminal, Bat Type Actuator, Panel Mount-threaded
DA225-P-B-W	Carling Technologies	获取价格	Toggle Switch, SPST, Latched, Wire Terminal, Paddle Type Actuator, Panel Mount-threaded
DA225-P-W-B	Carling Technologies	获取价格	Toggle Switch, SPST, On-off, Latched, Wire Terminal, Paddle Type Actuator, Panel Mount-thr
DA2266-ALB	COILCRAFT	获取价格	General Purpose Inductor, 39000uH, 5%, 1 Element, SMD, ROHS COMPLIANT
DA2266-ALD	COILCRAFT	获取价格	General Purpose Inductor, 39000uH, 5%, 1 Element, SMD, ROHS COMPLIANT

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