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ISL6313 Datasheet(PDF) 6 Page - Intersil Corporation

Part No. ISL6313
Description  Two-Phase Buck PWM Controller with Integrated MOSFET Drivers for Intel VR11 and AMD Applications
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Maker  INTERSIL [Intersil Corporation]
Homepage  http://www.intersil.com/cda/home
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ISL6313 Datasheet(HTML) 6 Page - Intersil Corporation

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6
FN6448.0
March 5, 2007
Absolute Maximum Ratings
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6V
Supply Voltage, PVCC . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +15V
BOOT Voltage, VBOOT . . . . . . . . . . . . . . GND - 0.3V to GND + 36V
BOOT to PHASE Voltage, VBOOT-PHASE . . . . . . -0.3V to 15V (DC)
-0.3V to 16V (<10ns, 10µJ)
PHASE Voltage, VPHASE . . . . . . . GND - 0.3V to 15V (PVCC = 12)
GND - 8V (<400ns, 20µJ) to 24V (<200ns, VBOOT - PHASE = 12V)
UGATE Voltage, VUGATE. . . . . . . . VPHASE - 0.3V to VBOOT + 0.3V
VPHASE - 3.5V (<100ns Pulse Width, 2µJ) to VBOOT + 0.3V
LGATE Voltage, VLGATE . . . . . . . . . . . GND - 0.3V to PVCC + 0.3V
GND - 5V (<100ns Pulse Width, 2µJ) to PVCC + 0.3V
Input, Output, or I/O Voltage . . . . . . . . . GND - 0.3V to VCC + 0.3V
ESD Classification . . . . . . . . . . . . . . . . . . . . . . . Class I JEDEC STD
Recommended Operating Conditions
VCC Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +5V
±5%
PVCC Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . +5V to 12V
±5%
Ambient Temperature (ISL6313CRZ) . . . . . . . . . . . . . 0°C to +70°C
Ambient Temperature (ISL6313IRZ) . . . . . . . . . . . . .-40°C to +85°C
Thermal Information
Thermal Resistance
θJA (°C/W) θJC (°C/W)
QFN Package (Notes 1, 2) . . . . . . . . . .
32
2.0
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . +150°C
Maximum Storage Temperature Range . . . . . . . . . . -65°C to +150°C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . +300°C
CAUTION: Stress above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational section of this specification is not implied.
NOTES:
1.
θJA 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.
3. Parameter magnitude guaranteed by design. Not 100% tested.
Electrical Specifications
Recommended Operating Conditions, Unless Otherwise Specified.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
BIAS SUPPLIES
Input Bias Supply Current
IVCC; EN = high
10
14
17
mA
Gate Drive Bias Current - PVCC Pin
IPVCC; EN = high
2
4.2
6
mA
VCC POR (Power-On Reset)
Threshold
VCC rising
4.25
4.38
4.50
V
VCC falling
3.75
3.87
4.00
V
PVCC POR (Power-On Reset)
Threshold
PVCC rising
4.25
4.38
4.50
V
PVCC falling
3.75
3.87
4.00
V
PWM MODULATOR
Oscillator Frequency Accuracy, FSW
(ISL6313CRZ)
RT = 100kΩ (± 0.1%)
225
250
275
kHz
Oscillator Frequency Accuracy, FSW
(ISL6313IRZ)
RT = 100kΩ (± 0.1%)
215
250
280
kHz
Adjustment Range of Switching
Frequency
(Note 3)
0.08
-
1.0
MHz
Oscillator Ramp Amplitude, VPP
(Note 3)
-
1.50
-
V
CONTROL THRESHOLDS
EN Rising Threshold
0.84
0.85
0.88
V
EN Hysteresis
-100
-
mV
REFERENCE AND DAC
System Accuracy (1.000V to 1.600V)
-0.5
-
0.5
%
System Accuracy (0.600V to 1.000V)
-1.0
-
1.0
%
ISL6313
ISL6313


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