ISL6327 Intersil Corporation, ISL6327 Datasheet - Page 8

• Manufacturer Part Number: ISL6327
• Description: Enhanced 6-Phase PWM Controller
• Manufacturer: Intersil Corporation

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Electrical Specifications
NOTES:
Leakage Current of VR_FAN
VR_FAN Low Voltage
VR READY AND PROTECTION MONITORS
Leakage Current of VR_RDY
VR_RDY Low Voltage
Undervoltage Threshold
VR_RDY Reset Voltage
Overvoltage Protection Threshold
Overvoltage Protection Reset Hysteresis
OVP Output Low Voltage
3. These parts are designed and adjusted for accuracy with all errors in the voltage loop included.
4. Spec guaranteed by design.
5. During soft-start, VDAC rises from 0 to 1.1V first and then ramp to VID voltage after receiving valid VID input.
6. Soft-start ramp rate is determined by the adjustable soft-start oscillator frequency at the speed of 6.25mV per cycle.
PARAMETER
8
Operating Conditions: VCC = 5V, Unless Otherwise Specified (Continued)
With external pull-up resistor connected to VCC
With 1.25kΩ resistor pull up to Vcc, I
With externally pull-up resistor connected to VCC
I
VDIFF Falling
VDIFF Rising
Before valid VID
After valid VID, the voltage above VID
IOVP = 4mA
VR_RDY
= 4mA
ISL6327
TEST CONDITIONS
VR_FAN
= 4mA
1.250
MIN
150
48
58
-
-
-
-
-
-
1.275
TYP
175
100
50
60
-
-
-
-
-
1.300
MAX
200
0.4
0.4
0.4
30
30
52
62
-
June 5, 2006
UNITS
FN9276.1
%VID
%VID
mV
mV
μA
μA
V
V
V
V