ISL6620A View Datasheet(PDF) - Intersil
Part Name
Description
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ISL6620A Datasheet PDF : 30 Pages
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ISL6334B, ISL6334C
Electrical Specifications Recommended Operating Conditions; VCC = 5V, Unless Otherwise Specified. Boldface limits apply over the
operating temperature ranges, -40°C to +85°C or 0°C to +70°C. (Continued)
PARAMETER
TEST CONDITIONS
MIN
MAX
(Note 6) TYP (Note 6) UNITS
Peak Current Limit for Individual Channel
115 129 146
µA
IMON Clamped and OCP Trip Level
1.085 1.11 1.14
V
THERMAL MONITORING AND FAN CONTROL
TM Input Voltage for VR_HOT Trip
32.9 33.3 33.7 %VCC
TM Input Voltage for VR_HOT Reset
38.7 39.1 39.6 %VCC
Leakage Current of VR_HOT
With external pull-up resistor connected to VCC
-
-
5
µA
VR_HOT Low Voltage
VR READY AND PROTECTION MONITORS
With 1.24k resistor pull-up to VCC, IVR_HOT = 4mA -
-
0.3
V
Leakage Current of VR_RDY
With pull-up resistor externally connected to VCC
-
-
5
µA
VR_RDY Low Voltage
Undervoltage Threshold
IVR_RDY = 4mA
VDIFF Falling
-
-
0.3
V
48
50
52 %VID
VR_RDY Reset Voltage
VDIFF Rising
57
59.6
62
%VID
Overvoltage Protection Threshold
Before valid VID
1.250 1.273 1.300
V
After valid VID, the voltage above VID
158 175 190
mV
Overvoltage Protection Reset Hysteresis
-
100
-
mV
NOTES:
6. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization
and are not production tested.
7. These parts are designed and adjusted for accuracy with all errors in the voltage loop included.
8. Limits established by characterization and are not production tested.
9. During soft-start, VDAC rises from 0V to 1.1V first and then ramp to VID voltage after receiving valid VID.
10. Soft-start ramp rate is determined by the adjustable soft-start oscillator frequency at the speed of 6.25mV per cycle.
10
FN6689.2
August 31, 2010
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