TA7788_16 Datasheet, PDF (1/1 Pages) Coilcraft lnc. – Flyback Transformer

Document 1320
Flyback Transformer For Silicon Labs ISODriver
Isolated DC-DC Converter
• Developed for use with Silicon Labs Si828x ISODriver isolated
DC-DC-Converter reference designs
• Ultra-miniature flyback transformer, only 10.0 × 17.07 × 5.97 mm
• 5000 Vrms, one minute isolation primary to secondary
• Designed to meet reinforced insulation class with 8 mm creepage
and clearance.
Core material Ferrite
Terminations  RoHS tin-silver-copper (95.5/3.8/0.7) over tin over
nickel over phos bronze.
Weight  1.1 g
Ambient temperature  –40°C to +85°C
Maximum part temperature +125°C
Storage temperature  Component: –40°C to +125°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 (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  700 per 13″ reel  Plastic tape:  32 mm wide, 0.40 mm thick,
16 mm pocket spacing, 5.72 mm pocket depth
PCB washing  Tested to MIL-STD-202 Method 215 plus an additional
aqueous wash. See Doc787_PCB_Washing.pdf.
Leakage
Part
Input
  _Inductance2   _inductance3
  _number1 _{voltage (V) ±5% (µH)}
max (µH)
TA7788-AL_
12 – 24
25.0
0.554

DCR max (Ohms)
Turns ratio ^  Isat⁴
pri   sec1   sec2
pri : sec1 : sec2
(A)
0.462 0.683 0.472
1 : 1.25 : 0.75
1.4
1. When ordering, specify a packaging code:
TA7788-ALD
Packaging: D = 13″ machine ready reel. EIA-481 embossed plastic
tape.
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.
2. Inductance is for the primary, measured on an Agilent/HP 4284 at 250 kHz,
0.1 Vrms, 0 Adc.
3. Leakage inductance measured between pins 2 and 3 at 250 kHz, 0.1 Vrms,
0 Adc with all secondary pins shorted.
4. DC current that causes an inductance drop of 30% (typ) from its value
without current
5. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
0.672
17,07
max
0.028
0,70
0.394 _max
10,00
1
Dot indicates pin 1
8
Internal code
0.079
2,00
0.235 _max
5,97
2
Pri
3
8
Sec1
(15 V, 0.13A)
6
7
Sec2
(9 V, 0.02 A)
5
0.067
1,70
0.555
14,1
0.079 ¹
2,00
Recommended
Land Pattern
Dimensions are in
inches
mm
0.063
1,60
8
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UK [phone] [e-mail]
Taiwan [phone] [e-mail]
China [phone] [e-mail]
Singapore + 65-6484 8412 [e-mail]
Document 1320  Revised 04/22/16
© 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.