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Transformers for ADI ADuM4070 Isolated Switching Regulator

  • Developed to work with Analog Devices ADuM4070 Isolated switching regulator with integrated feedback
  • Power rating: 2 Watts
  • Isolation: 5000 Vrms, one second primary to secondary
  • RoHS-compliant. 260°C compatible. Tin-silver-copper over tin over nickel over phos bronze terminations.

SPECIFICATIONS


CR7983-CL_ 256 1 : 2 5 V 3.3 to 15 V 0 V No output 0.190 0.350 0.75
CR7984-CL_ 256 1 : 3 5 V 12 to 24 V +6 to +12 V 0 V 0.170 0.450 0.75
CR7985-CL_ 256 1 : 5 5 V 5 to 15 V 0 V –5 to –15 V 0.170 2.00 0.72
1 When ordering, please specify packaging code: e.g. CR7983-CLD
  Packaging: D = 13" machine-ready reel
EIA 481 embossed plastic tape (175 parts per full reel).
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 from pins 12 – 11 at 1 kHz, 0.1 V.
3 DCR is for each winding of the primary and secondary at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
4 Leakage inductance is for the primary windings, measured from pins 12 – 11 with all secondary windings shorted.
5 Ambient temperature range: –40°C to +125°C
6 Storage temperature range: Component: –40°C to +125°C
Tape and reel packaging: –40°C to +80°C
7 Resistance to soldering heat: Three reflows at >217°C for 90 seconds (+260°C ±5°C for 20 – 40 seconds), allowing parts to cool to room temperature between.
8 Electrical specifications at 25°C.
Refer to Soldering Coilcraft Components before soldering.
PCB washing: Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info..
Analog Devices is a trademark of Analog Devices, Inc.

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Updated: March 09, 2015