ir3621 International Rectifier Corp., ir3621 Datasheet - Page 25

• 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 33 - SS1 pin shorted to Gnd
Figure 34 - SS2 pin shorted to Gnd
Ch1: SS1, Ch2: Hdrv1, Ch3: Ldrv1, Ch4:Vo2
Ch1: SS2, Ch2: Hdrv2, Ch3: Ldrv2, Ch4:Vo1
Figure 35 - External Synchronization
Ch1: External Clock, Ch2: Hdrv1, Ch3: Hdrv2
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