IRAC1166-100W International Rectifier, IRAC1166-100W Datasheet - Page 13

• 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: -

load
load
Fig 6E - Power down @ 90Vacin @ 100W full
Fig 6F - Power down @ 265Vacin @ 100W full
Rev.1A
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.
voltage drops to ~40VDC.
switching freq. at ~14kHz
to IC’s UVLO threshold has been
reached after Vout continuously
dropped.
Isd rises as the output tries to
maintain constant current while Vout
start to drop until the IR1166 IC
reach UVLO and sync rectification
stops.
(SR)1 // SR2)
voltage drops to ~40VDC.
at ~14kHz before IC‘s UVLO was
reached.
when the switching at the primary
side ceases.
~35Apk to ~56Apk before the unit
completely shutdown.
Ch1 : 90Vac = 125Vdc to ~44 Vdcin
Ch2 : Vsd of sync rect (SR)1 // SR2)
Ch3: Vgate,,, Plot F3 : zoom Vgate
Ch4 @ x10A/V , Isd= ~56 Apk (max)
1. Switching stops after primary bulk
2. (Plot F2) Vsd of sync-rects
3. Gate pulses stops probably due
4. Plot F4 is the zoom view of Ch4.
Ch1 : 100V/div
Ch2 : 20V/div :VSD of sync rect
Ch3: Vgate, Plot F3 : zoom Vgate
Ch4 (x10A/V), Isd= ~56 Apk (max)
1. Switching stops after primary bulk
2. Vsd of sync-rects were switching
3. Sync-rect gate drive also stops
4. Ch4 is showing Isd rise from
RD#0618
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