ir3500v International Rectifier Corp., ir3500v Datasheet - Page 22

• Manufacturer Part Number: ir3500v
• Description: Xphase3 Vr11.1 Cpu Vtt Control Ic
• Manufacturer: International Rectifier Corp.

Page 22 of 34
VCCLDRV
OUTPUT
VOLTAGE
(VOSEN+)
VCCL UVLO
ROSC/OVP
SS/DEL
VCC
Figure 18 - Over-voltage protection with pre-charging converter output VID + 0.13V <Vo < 1.73V
OV
THRESHOLD
OUTPUT
VOLTAGE
(VO)
VID
(FAST
VDAC)
VDAC
12V
VCCL+0.7V
VCCL+0.7V
1.73V
VID + 0.13V
VCCL - 1V
0.6V
3.92V (4V-0.08V)
NORMAL
OPERATION
Figure 19 - Over-voltage protection during dynamic VID
VDAC
VID DOWN
50mV
LOW VID
50mV
VID UP
NORMAL
OPERATION
1.73V
VDAC + 130mV
July 03, 2008
IR3500V