isl6326b Intersil Corporation, isl6326b Datasheet - Page 8

• Manufacturer Part Number: isl6326b
• Description: 4-phase Pwm Controller With 8-bit Dac Code Capable Of Precision Dcr Differential Current Sensing
• Manufacturer: Intersil Corporation

Electrical Specifications
NOTES:
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. 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.
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 externally pull-up resistor connected to VCC
With 1.25k 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
VR_RDY
= 4mA
ISL6326B
TEST CONDITIONS
VR_HOT
= 4mA
1.250
MIN
150
48
58
-
-
-
-
-
1.275
TYP
175
100
50
60
-
-
-
-
1.300
MAX
200
0.4
0.4
30
30
52
62
-
April 21, 2006
UNITS
FN9286.0
%VID
%VID
mV
mV
µA
μA
V
V
V