ir3621 International Rectifier Corp., ir3621 Datasheet - Page 24

• Manufacturer Part Number: ir3621
• Description: 2-phase / Dual Synchronous Pwm Controller With Oscillator Synchronization And Pre-bias Startup
• Manufacturer: International Rectifier Corp.

IR3621 & (PbF)
TYPICAL OPERATING WAVEFORMS
Test Conditions:
V
=12V, V
=2.5V, I
=0-10A, V
=1.8V, I
=0-10A, Fs=400kHz, Ta=Room Temp, No Air Flow
IN
OUT1
OUT1
OUT2
OUT2
Unless otherwise specified.
Figure 30 - 1.8V output shorted
Figure 29 - 2.5V Waveforms
Ch1: Vo1, Ch2: SS2, Ch3: Inductor Current
Ch1: Hdrv2, Ch2: Ldrv2, Ch3: Lx2, Ch4: Inductor Current
Figure 32 - Prebias Start up
Figure 31 - 2.5V output shorted
Ch1: SS1, Ch2: Vo1, Ch3: SS2, Ch4:Vo2
Ch1: Vo2, Ch2: SS1, Ch3: Inductor Current
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