ISL6334 INTERSIL [Intersil Corporation], ISL6334 Datasheet - Page 10

• Manufacturer Part Number: ISL6334
• Description: VR11.1, 4-Phase PWM Controller with Light Load Efficiency Enhancement and Load Current Monitoring
• Manufacturer: INTERSIL [Intersil Corporation]

Electrical Specifications
NOTES:
THERMAL MONITORING AND FAN CONTROL
TM Input Voltage for VR_FAN Trip
TM Input Voltage for VR_FAN Reset
TM Input Voltage for VR_HOT Trip
TM Input Voltage for VR_HOT Reset
Leakage Current of VR_FAN
VR_FAN Low Voltage
Leakage Current of VR_HOT
VR_HOT 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
3. These parts are designed and adjusted for accuracy with all errors in the voltage loop included.
4. Limits should be considered typical and are not production tested.
5. During soft-start, VDAC rises from 0V to 1.1V first and then ramp to VID voltage after receiving valid VID.
6. Soft-start ramp rate is determined by the adjustable soft-start oscillator frequency at the speed of 6.25mV per cycle.
7. Parts are 100% tested at +25°C. Temperature limits established by characterization and are not production tested.
PARAMETER
10
Operating Conditions: VCC = 5V, Unless Otherwise Specified. (Continued)
With 1.24k resistor pull-up to VCC, I
With external pull-up resistor connected to VCC
With external pull-up resistor connected to VCC
With 1.24k resistor pull-up to VCC, I
With pull-up resistor externally connected to VCC
I
VDIFF Falling
VDIFF Rising
Before valid VID
After valid VID, the voltage above VID
VR_RDY
ISL6334, ISL6334A
= 4mA
TEST CONDITIONS
VR_HOT
VR_FAN
= 4mA
= 4mA
(Note 7)
1.250
38.7
44.6
32.9
38.7
MIN
158
48
57
-
-
-
-
-
-
-
1.273
TYP
39.1
45.1
33.3
39.1
59.6
175
100
50
-
-
-
-
-
-
(Note 7) UNITS
1.300
MAX
39.6
45.5
33.7
39.6
190
0.3
0.3
0.3
52
62
5
5
5
-
February 26, 2008
%VCC
%VCC
%VCC
%VCC
FN6482.0
%VID
%VID
mV
mV
µA
µA
µA
V
V
V
V