ISL6328 Datasheet, PDF (9/33 Pages) Intersil Corporation – Dual PWM Controller For Powering AMD SVI Split-Plane Processors

ISL6328
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 - 0.3V to 24V
(PVCC = 12V) GND - 8V (<400ns, 20µJ) to 31V (<200ns, 20µJ,
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
ESD Rating
Human Body Model (Tested per JESD22-A114F) . . . . . . . . . . . . . . 2000V
Machine Model (Tested per JESD22-A115C) . . . . . . . . . . . . . . . . . 200V
Charge Device Model (Tested per JESD22-C101D) . . . . . . . . . . . . 2000V
Latch Up (Tested per JESD78C; Class II, Level A) . . . . . . . . . . . . . . . 100mA
Thermal Information
Thermal Resistance
θ_JA (°C/W) θ_JC (°C/W)
QFN Package (Notes 4, 5) . . . . . . . . . . . . . .
27
1
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
ISL6328CRZ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to +70°C
ISL6328IRZ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -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:
4. 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.
5. For θ_JC, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications Boldface limits apply over the operating temperature range.
PARAMETER
BIAS SUPPLIES
TEST CONDITIONS
MIN
MAX
(Note 6)
TYP
(Note 6) UNITS
Input Bias Supply Current
Gate Drive Bias Current - PVCC Pin
VCC POR (Power-On Reset) Threshold
I_VCC; EN = high
I_PVCC; EN = high
VCC Rising
26
35
mA
4
8
mA
4.35
4.7
V
VCC Falling
3.6
3.85
V
PVCC POR (Power-On Reset) Threshold
PVCC Rising
PVCC Falling
4.45
4.7
V
3.6
3.95
V
GVOT POR (Power-On Reset) Threshold
GVOT Rising
GVOT Falling
4.45
4.7
V
3.6
3.95
V
PWM MODULATOR
Oscillator Frequency Accuracy, F_SW
Oscillator Frequency Accuracy, F_SW
Typical Adjustment Range of Switching Frequency
R_T = 100kΩ to Ground
R_T = 100kΩ to VCC
(Note 7)
230
250
225
255
0.150
265
kHz
287
kHz
1.5
MHz
Oscillator Ramp Amplitude, V_PP
CONTROL THRESHOLDS
(Note 7)
1.5
V
EN Rising Threshold
0.8
0.87
0.92
V
EN Hysteresis
70
100
190
mV
PWROK Input HIGH Threshold
0.9
1.05
1.2
V
PWROK Input LOW Threshold
VDDPWRGD
PWM Channel Disable Threshold
Open drain, VDDPWRGD = 1.24kΩ to 5V
V_ISEN2-, V_ISEN3-, V_ISEN4-
0.8
0.95
1.1
V
0.5
V
4.4
V
9
FN7621.1
June 7, 2011