ISL6322G Datasheet, PDF (30/39 Pages) Intersil Corporation – Two-Phase Buck PWM Controller with Integrated MOSFET Drivers, I2C Interface and Phase Dropping

ISL6322G
TABLE 9. REGISTER RGS2 (# OF PHASES/ADAPTIVE DEADTIME CONTROL/OVERVOLTAGE PROTECTION/SWITCHING
FREQUENCY)
BIT7 BIT6 BIT5 BIT4 BIT3 BIT2 BIT1 BIT0
NUMBER OF ADAPTIVE DEADTIME
OVERVOLTAGE
SWITCHING
X CH0 DT1 DT0 OVP FS2 FS1 FS0 CHANNELS
CONTROL
PROTECTION LEVEL FREQUENCY
x
0
0
0
0
0
0
0
2-Phase
PHASE DETECT
DEFAULT
NOMINAL
x
0
0
0
0
0
0
1
2-Phase
PHASE DETECT
DEFAULT
-15%
x
0
0
0
0
0
1
0
2-Phase
PHASE DETECT
DEFAULT
-30%
x
0
0
0
0
0
1
1
2-Phase
PHASE DETECT
DEFAULT
+15%
x
0
0
0
0
1
0
0
2-Phase
PHASE DETECT
DEFAULT
+30%
x
0
0
0
1
0
0
0
2-Phase
PHASE DETECT
ALTERNATE
NOMINAL
x
0
0
0
1
0
0
1
2-Phase
PHASE DETECT
ALTERNATE
-15%
x
0
0
0
1
0
1
0
2-Phase
PHASE DETECT
ALTERNATE
-30%
x
0
0
0
1
0
1
1
2-Phase
PHASE DETECT
ALTERNATE
+15%
x
0
0
0
1
1
0
0
2-Phase
PHASE DETECT
ALTERNATE
+30%
x
0
0
1
0
0
0
0
2-Phase
LGATE DETECT
DEFAULT
NOMINAL
x
0
0
1
0
0
0
1
2-Phase
LGATE DETECT
DEFAULT
-15%
x
0
0
1
0
0
1
0
2-Phase
LGATE DETECT
DEFAULT
-30%
x
0
0
1
0
0
1
1
2-Phase
LGATE DETECT
DEFAULT
+15%
x
0
0
1
0
1
0
0
2-Phase
LGATE DETECT
DEFAULT
+30%
x
0
0
1
1
0
0
0
2-Phase
LGATE DETECT
ALTERNATE
NOMINAL
x
0
0
1
1
0
0
1
2-Phase
LGATE DETECT
ALTERNATE
-15%
x
0
0
1
1
0
1
0
2-Phase
LGATE DETECT
ALTERNATE
-30%
x
0
0
1
1
0
1
1
2-Phase
LGATE DETECT
ALTERNATE
+15%
x
0
0
1
1
1
0
0
2-Phase
LGATE DETECT
ALTERNATE
+30%
x
1
0
0
0
0
0
0
1-Phase
PHASE DETECT
DEFAULT
NOMINAL
x
1
0
0
0
0
0
1
1-Phase
PHASE DETECT
DEFAULT
-15%
x
1
0
0
0
0
1
0
1-Phase
PHASE DETECT
DEFAULT
-30%
x
1
0
0
0
0
1
1
1-Phase
PHASE DETECT
DEFAULT
+15%
x
1
0
0
0
1
0
0
1-Phase
PHASE DETECT
DEFAULT
+30%
x
1
0
0
1
0
0
0
1-Phase
PHASE DETECT
ALTERNATE
NOMINAL
x
1
0
0
1
0
0
1
1-Phase
PHASE DETECT
ALTERNATE
-15%
x
1
0
0
1
0
1
0
1-Phase
PHASE DETECT
ALTERNATE
-30%
x
1
0
0
1
0
1
1
1-Phase
PHASE DETECT
ALTERNATE
+15%
x
1
0
0
1
1
0
0
1-Phase
PHASE DETECT
ALTERNATE
+30%
x
1
0
1
0
0
0
0
1-Phase
LGATE DETECT
DEFAULT
NOMINAL
x
1
0
1
0
0
0
1
1-Phase
LGATE DETECT
DEFAULT
-15%
x
1
0
1
0
0
1
0
1-Phase
LGATE DETECT
DEFAULT
-30%
x
1
0
1
0
0
1
1
1-Phase
LGATE DETECT
DEFAULT
+15%
x
1
0
1
0
1
0
0
1-Phase
LGATE DETECT
DEFAULT
+30%
x
1
0
1
1
0
0
0
1-Phase
LGATE DETECT
ALTERNATE
NOMINAL
x
1
0
1
1
0
0
1
1-Phase
LGATE DETECT
ALTERNATE
-15%
x
1
0
1
1
0
1
0
1-Phase
LGATE DETECT
ALTERNATE
-30%
30
FN6715.0
May 22, 2008