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RA7040_16 PDF预览

RA7040_16

更新时间: 2024-11-22 01:16:59
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线艺 - COILCRAFT /
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2页 167K
描述
SMT Planar Transformer

RA7040_16 数据手册

 浏览型号RA7040_16的Datasheet PDF文件第2页 
Document 1257-1  
For TI UCC2897 12 V/150 W  
Active Clamp Forward  
SMT Planar Transformer  
• Developed for Texas Instruments UCC2897 Active Clamp  
Forward (PMP9720 reference design)  
• Designed for 48 – 60 Vdc input; 12 V, 13 A  
• High efficiency; excellent DCR; very low leakage inductance;  
1500 Vrms, one minute primary to secondary isolation.  
• Provides 0.009(0.229 mm) clearance above the seating plane  
Core material Ferrite  
Terminations Matte tin over nickel over brass.  
Weight 12.7 g  
Ambient temperature –40°C to +125°C  
Maximum part temperature +165°C (ambient + temp rise)  
Storage temperature Component: –40°C to +125°C.  
Tray 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 (MSL) 1 (unlimited floor life at <30°C /  
85% relative humidity)  
Failures in Time (FIT) / Mean Time Between Failures (MTBF)  
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332  
Packaging 36 per tray  
PCB washing Tested to MIL-STD-202 Method 215 plus an additional  
aqueous wash. See Doc787_PCB_Washing.pdf.  
Primary  
inductance1  
2ꢀ (ꢁµ)  
Leakage  
inductance2  
max (ꢁµ)  
Volt-time  
Turns  
N1 N2 Sec Aux  
DCR max (mOhms)  
Part  
number  
product typ4  
(Vꢁsec)  
Pri3  
Sec  
Aux  
Output5  
RA7040-AL  
6
6
3
3
50  
0.55  
10.75  
4.25  
61.1  
100  
12 V, 13 A  
1. Inductance is for the primary, measured on Agilent/HP 4284A at 200 kHz, 0.5 Vrms, 0 Adc with primary  
windings connected in parallel.  
2. Leakage Inductance is for the primary, measured at 200 kHz, 0.5 Vrms, 0 Adc with primary windings  
connected in parallel and all secondary pins shorted.  
3
2
11  
Pri N1  
N2  
10  
3. Primary DCR measured with primary windings connected in parallel  
4. Volt-time product is based on primary windings connected in parallel.  
5. Output of the secondary, 12 V 13 A, is from pins 11 – 8, Output of the aux winding is 12 V.  
6. Electrical specifications at 25°C.  
4
5
Sec  
9
1
Aux  
6
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.  
8
Primary windings to be connected  
in parallel on the PC board.  
Document 1257-1 Revised 04/02/15  
US +1-847-639-6400 sales@coilcraft.com  
UK +44-1236-730595 sales@coilcraft-europe.com  
© Coilcraft Inc. 2016  
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.  
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  

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