ir3082pbf International Rectifier Corp., ir3082pbf Datasheet - Page 16

• Manufacturer Part Number: ir3082pbf
• Description: Xphase Amd Opterontm/athlon 64tm Control Ic
• Manufacturer: International Rectifier Corp.

VCC
(12V)
ENABLE
SS/DEL
VOUT
PWRGD
IOUT
VOUT
PWRGD
VCC
(12V)
ENABLE
(VTT)
SS/DEL
Page 16 of 33
(ENABLE ENDS
FAULT MODE)
(ENABLE GATES
3.83V
1.27V
3.83V
START
FAULT MODE)
1.3V
1.3V
START-UP
(VOUT CHANGES DUE TO
LOAD AND VID CHANGES)
START DELAY
NORMAL OPERATION
1.9ms
OCP THRESHOLD
Figure 11 – Operating Waveforms
Figure 10 – Start-up Waveforms
OCP
DELAY
3.785V
SOFT START TIME
1.95ms
HICCUP OVER-CURRENT
PROTECTION
PWRGD
DELAY
2.0ms
NORMAL
OPERATION
RE-START
AFTER OCP
CLEARS
IR3082PbF
01/31/05
(VCC UVL
INITIATES
FAULT MODE)
POWER-DOWN
9.0V
UVLO
POWER-DOWN
(VCC GATES
FAULT MODE)
9.0V
UVLO