ISL6327A Datasheet, PDF (6/29 Pages) Intersil Corporation – Enhanced 6-Phase PWM Controller with 8-Bit VID Code and Differential Inductor DCR or Resistor Current Sensing

ISL6327A
Absolute Maximum Ratings
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+6V
All Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . GND -0.3V to V_CC + 0.3V
Operating Conditions
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +5V ±5%
Ambient Temperature
ISL6327ACRZ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to +70°C
ISL6327AIRZ . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +85°C
Thermal Information
Thermal Resistance (Typical, Notes 1, 2) θ_JA (°C/W) θ_JC (°C/W)
48 Ld QFN Package. . . . . . . . . . . . . . .
32
3.5
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . +150°C
Maximum Storage Temperature Range . . . . . . . . . .-65°C to +150°C
Pb-free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . .see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and
result in failures not covered by warranty.
NOTES:
1. θ_JA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See
Tech Brief TB379.
2. For θ_JC, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications
Operating Conditions: VCC = 5V, Unless Otherwise Specified. 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.
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNITS
VCC SUPPLY CURRENT
Nominal Supply
VCC = 5VDC; EN_PWR = 5VDC; R_T = 100kΩ,
ISEN1 = ISEN2 = ISEN3 = ISEN4 = ISEN5 = ISEN6 = -70µA
-
18 26 mA
Shutdown Supply
POWER-ON RESET AND ENABLE
VCC = 5VDC; EN_PWR = 0VDC; R_T = 100kΩ
-
14 21 mA
POR Threshold
VCC Rising
4.3 4.5 4.7
V
VCC Falling
3.7 3.9 4.2
V
EN_PWR Threshold
Rising
0.850 0.875 0.910 V
Hysteresis
- 130 -
mV
Falling
0.720 0.745 0.775 V
EN_VTT Threshold
Rising
0.850 0.875 0.910 V
Hysteresis
- 130 -
mV
Falling
0.720 0.745 0.775 V
REFERENCE VOLTAGE AND DAC
System Accuracy of ISL6327ACRZ
(VID = 1V to 1.6V), T_J = 0°C to +70°C
System Accuracy of ISL6327ACRZ
(VID = 0.5V to 1V), T_J = 0°C to +70°C
System Accuracy of ISL6327AIRZ
(VID = 1V to1.6V), T_J = -40°C to +85°C
System Accuracy of ISL6327AIRZ
(VID = 0.5V to 1V), T_J = -40°C to +85°C
VID Pull-up
(Note 3)
(Note 3)
(Note 3)
(Note 3)
-0.5
-
0.5 %VID
-0.9
-
0.9 %VID
-0.6
-
0.6 %VID
-1
-
1 %VID
-60 -40 -20 µA
VID Input Low Level
-
-
0.4
V
VID Input High Level
0.8
-
-
V
VRSEL Input Low Level
-
-
0.4
V
VRSEL Input High Level
0.8
-
-
V
DAC Source Current
-
4
7
mA
6
FN6833.0
February 17, 2009