ISL6314CRZ-T Datasheet, PDF (6/32 Pages) Intersil Corporation – Single-Phase Buck PWM Controller with Integrated MOSFET Drivers for Intel VR11 and AMD Applications

ISL6314
Absolute Maximum Ratings
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6V
Supply Voltage, PVCC . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +15V
Absolute Boot Voltage, V_BOOT . . . . . . . . GND - 0.3V to GND + 36V
Phase Voltage, V_PHASE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GND - 8V (<400ns, 20µJ) to 30V (<200ns, V_BOOT-PHASE = 5V)
Upper Gate Voltage, V_UGATE . . . . V_PHASE - 0.3V to V_BOOT + 0.3V
V_PHASE - 3.5V (<100ns Pulse Width, 2µJ) to V_BOOT + 0.3V
Lower Gate Voltage, V_LGATE. . . . . . . . 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
Thermal Information
Thermal Resistance
θ_JA (°C/W) θ_JC (°C/W)
QFN Package (Notes 1, 2) . . . . . . . . . .
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
Recommended Operating Conditions
VCC Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+5V ±5%
PVCC Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . +5V to 12V ±5%
Ambient Temperature
ISL6314CRZ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to +70°C
ISL6314IRZ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +85°C
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
Recommended Operating Conditions, 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
BIAS SUPPLIES
Input Bias Supply Current
I_VCC; V_CC = 5V; EN = high,
9
not switching;
11.4
16
mA
Gate Drive Bias Current - PVCC Pin
I_PVCC; PVCC = 12V; EN = high,
1
2
4
mA
high, not switching
V_CC POR (Power-On Reset) Threshold
PVCC POR (Power-On Reset) Threshold
V_CC rising
V_CC falling
PVCC rising
4.25
4.38
4.50
V
3.75
3.88
4.00
V
4.25
4.38
4.50
V
PVCC falling
3.75
3.88
4.00
V
PWM MODULATOR
Oscillator Frequency Accuracy, f_SW
(ISL6314CRZ)
R_T = 100kΩ (± 0.1%)
225
250
275
kHz
Oscillator Frequency Accuracy, f_SW
(ISL6314IRZ)
R_T = 100kΩ (± 0.1%)
215
250
280
kHz
Adjustment Range of Switching Frequency (Note 3)
0.08
-
1.0
MHz
Oscillator Ramp Amplitude, V_P-P
CONTROL THRESHOLDS
(Note 3)
-
1.50
-
V
EN Rising Threshold
0.84
0.86
0.88
V
EN Hysteresis
-
110
-
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
%
System Accuracy (0.375V to 0.600V)
-2.0
-
2.0
%
VIDx Input Low Voltage (INTEL)
Pins VID0 to VID7
-
-
0.4
V
6
FN6455.2
October 8, 2009