ISL6563 Intersil Corporation, ISL6563 Datasheet - Page 11

• Manufacturer Part Number: ISL6563
• Description: Two-Phase Multi-Phase Buck PWM Controller with Integrated MOSFET Drivers
• Manufacturer: Intersil Corporation

VID4
TABLE 3. VRM10 VOLTAGE IDENTIFICATION CODES
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
VID3
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
VID2
1
1
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
VID1
0\
11
1
1
1
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
VID0
1
1
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
VID5
1
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
0.8375
0.8500
0.8625
0.8750
0.8875
0.9000
0.9125
0.9250
0.9375
0.9500
0.9625
0.9750
0.9875
1.0000
1.0125
1.0250
1.0375
1.0500
1.0625
1.0750
1.0875
1.1000
1.1125
1.1250
1.1375
1.1500
1.1625
1.1750
1.1875
1.2000
1.2125
1.2250
1.2375
1.2500
1.2625
1.2750
1.2875
1.3125
1.3250
1.3375
1.3500
1.3625
VDAC
1.300
Off
Off
ISL6563
ISL6563
DYNAMIC VID (VID-ON-THE-FLY)
The ISL6563 is capable of executing on-the-fly output
voltage changes. The way the ISL6563 reacts to a change in
the VID code is dependent on the VID configuration. In
VRM9 or AMD Hammer settings, the ISL6563 checks for a
change in the VID code four times each switching cycle. The
VID code is the bit pattern present at pins VID4-VID0. If a
new code is established and it stays the same for 3
consecutive readings, the ISL6563 begins changing the
reference by making one step change every four switching
cycles until the it reaches the new VID code. Figure 5
depicts such a transition, from 1.5V to 1.7V
1.5V
1.5V
VID4
TABLE 3. VRM10 VOLTAGE IDENTIFICATION CODES
FIGURE 5. TYPICAL DYNAMIC-VID OPERATION, VRM9 DAC
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
V
V
REF
OUT
01110
VID3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
(100mV/div)
(Continued)
(100mV/div)
SETTING
VID2
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
00110
VID CHANGE OCCURS HERE
VID1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
V
VID
VID0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
VID5
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
1.3750
1.3875
1.4000
1.4125
1.4250
1.4375
1.4500
1.4625
1.4750
1.4875
1.5000
1.5125
1.5250
1.5375
1.5500
1.5625
1.5750
1.5875
1.6000
VDAC