ISL6307A Datasheet, PDF (10/33 Pages) Intersil Corporation – Ultra-high bandwidth 6-Phase PWM Controller with 8 Bit VID Code Capable of Precision RDS(ON) or DCR Differential Current Sensing

ISL6307A
Electrical Specifications Operating Conditions: VCC = 5V or ICC < 25mA. Unless Otherwise Specified (Continued)
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNITS
VR READY AND PROTECTION MONITORS
Leakage Current of VR_RDY
With external pull-up resistor connected to 5V
-
-
30
µA
VR_RDY Low Voltage
Under Voltage Trip of VR-RDY
I_{VR_RDY} = 4mA
VSEN Falling
-
-
0.3
V
48 50 52 %VID
VR-RDY Reset Voltage
VSEN Rising
58 60 62 %VID
Overvoltage Protection Threshold
Before valid VID
1.250 1.275 1.300 V
After valid VID, the voltage above VID
150 175 200 mV
Overvoltage Reset Threshold
0.38 0.40 0.42 V
OVP Output High Voltage
I_OVP = 4mA
4.5
-
-
V
OVP Output Low Voltage
I_OVP = 4mA
-
- 0.25 V
NOTES:
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.
10
FN9236.0
February 6, 2006