3D Model Datasheet

Flyback Transformers for

Texas Instruments TPS23754

Developed for TI TPS23754 PoE Interface and DC/DC Converter

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零件号

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计数	单价
1	$5.51
175	$4.72
700	$4.12
1400	$3.59
2800	$3.00
5000	$2.80

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.

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零件号

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典型应用

与Texas Instruments TPS23754一起使用

零件号	输入电压	输出 1		功率	Fsw
零件号	输入电压	Sec	Drive	功率	Fsw
JA4372-AL_	33 V — 57 V	3.3 V , 7.6 A	11.2 V , 0.02 A	25 W	250 kHz
JA4387-AL_	33 V — 57 V	12 V , 2.08 A	11.2 V , 0.02 A	25 W	250 kHz

规格

Electrical specifications at 25°C.

零件号 2 (Hover for schematics)	0A时的电感 (µH) 3 (公差: ±10%)	最小电感 2.2 A (µH) 4	DCR max (Ω) 5				最大漏电感 (µH) 6	匝数比 7	隔离电压 (Vrms) 8
零件号 2 (Hover for schematics)	0A时的电感 (µH) 3 (公差: ±10%)	最小电感 2.2 A (µH) 4	Pri	Sec	Bias	Drive	最大漏电感 (µH) 6	Pri : Sec : Bias : Drive	隔离电压 (Vrms) 8
JA4372-AL_	75.0	67.5	0.143	0.005	0.122	0.072	3.0	1 : 0.08 : 0.28 : 0.16	1500
JA4387-AL_	75.0	66.0	0.077	0.010	0.096	0.070	0.76	1 : 0.25 : 0.25 : 0.15	1500

注释

Output is with the secondary windings connected in parallel. Output of the drive winding is 6 V, 10 mA. Output of the bias winding is 11.2 V, 20 mA.
When ordering, please specify a packaging code: JA4387-ALD.
Inductance is measured at 250 kHz, 0.1 Vrms, 0 Adc.
Peak primary current drawn at minimum input voltage.
DCR for the primary and the secondary is measured with windings connected in parallel.
Leakage inductance is for the primary, measured with the windings connected in parallel and the secondary windings shorted.
Turns ratio is with the primary windings and secondary windings connected in parallel.
1500 Vrms isolation from the primary and bias windings to the secondary.

端子:

RoHS-compliant 260°C compatible. Tin-silver (96.5/3.5) over tin over nickel over phos bronze terminations.

环境

环境:

符合RoHS

环境温度范围:

–40°C to +125°C

储存温度范围:

Component: –40°C to +125°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

Primary windings and secondary windings
to be connected in parallel on PC board.

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	50,4	44,4	44	28	4	2	12,0	0,4

一般规格

核心材料:

Ferrite

重量:

12.0 g

包装:

175 per 13″ reel Plastic tape: 44 mm wide, 0.4 mm thick, 28 mm pocket spacing, 11.9 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. For other solvents, see Doc787_PCB_Washing.pdf

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