RA6992_16 [COILCRAFT]
SMT Planar Transformer;
| 型号： | RA6992_16 |
| 厂家： | 
Coilcraft lnc. |
| 描述： | SMT Planar Transformer |
| 文件： | 总1页 (文件大小：180K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Document 1268
For TI UCC2897
(PMP9656
SMT Planar Transformer Reference Design)
• Developed for Texas Instruments UCC2897 Active Clamp
Forward (PMP9656 reference design)
• Rated for 250 Watts
• Designed to operate at 200 kHz with 48 – 60 Vdc input.
• 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 26.5 g
Ambient temperature –40°C to +85°C
Maximum part temperature +125°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 25 per tray
PCB washing Tested to MIL-STD-202 Method 215 plus an additional
aqueous wash. See Doc787_PCB_Washing.pdf.
Primary
Leakage
inductance2
max (µH)
Volt-time
product typ4
(Vµsec)
Turns
Pri Sec Aux
DCR max (mOhms)3
Primary Secondary Aux
inductance1
±±20 (µH)
Part number
Output
RA6992-BL
8
4
4
50
0.25
6.9
4.2
82
206
12 V, 21 A
1. Inductance measured on an Agilent/HP 4284 at 200 kHz, 0.5 Vrms, 0 Adc with windings connected in parallel.
2. Leakage inductance is for the primary with windings connected in parallel, measured at 200 kHz, 0.5 Vrms, 0 Adc with all secondary pins shorted.
3. DCR for primary is measured with the windings connected in parallel. DCR for secondary is measured between pins 7 and 11.
4. Volt-time product is based on primary windings connected in parallel.
5. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
11
10
9
Dot indicates pin 1
Internal code
1T
2
3
0.150
3,81
11
10
9
1
2
3
1
11
10
9
Pri 8T
0.313
7,95
1T
1T
1T
2
3
4
5
6
Sec
1.050
26,67
5
4
max
4
5
8
8
0.1878 0.0626
4,77 1,59
8
1
Aux 4T
6
7
7
6
0.110
0.130
3,30
Æ
7
Æ
1.00
25,40
2,79
1.160
29,46
max
Primary windings to be connected
in parallel on the PC board
Recommended
Land Pattern
0.009
0,229
min
0.475
12,10
max
0.004/0,102
0.080
2,03
0.10
2,54
inches
mm
Dimensions are in
Document 1268 Revised 11/16/15
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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