IRAC1166-100W International Rectifier, IRAC1166-100W Datasheet - Page 11

• Manufacturer Part Number: IRAC1166-100W
• Description: BOARD DEMO 100W FOR IR1166
• Manufacturer: International Rectifier

Specifications of IRAC1166-100W

• Main Purpose: AC/DC, Secondary Side
• Outputs And Type: 1, Isolated
• Power - Output: 100W
• Voltage - Output: 16V
• Current - Output: 6.25A
• Voltage - Input: 90 ~ 264VAC
• Regulator Topology: Flyback
• Board Type: Fully Populated
• Utilized Ic / Part: IR1166S, IRF7853
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Frequency - Switching: -

6.0 TEST WAVEFORMS
6.1.1 Transient Test
Fig 6B - 265 Vacin –startup @ no load.
Fig 6A -
Rev.1A
90 Vacin startup @ no load.
WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245 Tel: [phone]
18 August 2006
http://www.irf.com/ Data and specifications subject to change without notice.
(IRF7853), F3: (zoom of Ch3)
oper’n only after ~3 msec from the
first switching of the primary section.
The body diodes of the sync rect
mosfets act as the passive rectifiers
during this particular period. The
Gate drive (fsw : ~7.3kHz) pulses
became so narrow after the output
voltage stabilizes and reached the
regulation at no load condition (-see
Fig. 6G for more details).
(Isd) No significant reverse current
during startup at full load.
Ch3 : 2V/div, Vgate,
switching regularly.
at light load condition and the
switching frequency decreases after
the output voltage reached its
regulation level.
(Isd) - no significant reverse current
during startup at full load.
8Apk (see Fig 6H) is keeping the
Vout within regulation during
standby mode ( no load condition).
Ch1 : 50V/div, @ 90Vac
Ch2 : 1V/div Vsd of sync rect (SR)
Ch3 : 2V/div Vgate of SR1 & SR2
Ch4 ( x10A/V) =Isd ~54 Apk (max)
2.Vsd of sync rects are quite clean
3. The IR1166 IC start its sync rect
4. Plot F4 is the zoom view of Ch4
Ch1 : 50V/div, @265Vac
Ch2 : 1V/div, Vsd of sync rect (SR)
F3: (zoom of Ch3)
Ch4 ( x10A/V),Isd : ~38 Apk (max)
2. Vsd of sync-rects is uniform and
3. Gate drive pulses become narrow
4. Plot F4 is the zoom view of Ch4
Narrow current pulses approx.~7 to
RD#0618
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