isl6312a Intersil Corporation, isl6312a Datasheet - Page 6

• Manufacturer Part Number: isl6312a
• Description: Four-phase Buck Pwm Controller With Integrated Mosfet Drivers For Intel Vr10, Vr11, And Amd Applications
• Manufacturer: Intersil Corporation

Absolute Maximum Ratings
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6V
Supply Voltage, PVCC . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +15V
BOOT Voltage, V
BOOT to PHASE Voltage, V
PHASE Voltage, V
UGATE Voltage, V
LGATE Voltage, V
Input, Output, or I/O Voltage . . . . . . . . . GND - 0.3V to VCC + 0.3V
ESD Classification . . . . . . . . . . . . . . . . . . . . . . . Class I JEDEC STD
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:
Electrical Specifications
BIAS SUPPLIES
Input Bias Supply Current
Gate Drive Bias Current - PVCC1_2 Pin
Gate Drive Bias Current - PVCC3 Pin
VCC POR (Power-On Reset) Threshold
PVCC POR (Power-On Reset) Threshold
PWM MODULATOR
Oscillator Frequency Accuracy, f
Adjustment Range of Switching Frequency
Oscillator Ramp Amplitude, V
CONTROL THRESHOLDS
EN Rising Threshold
EN Hysteresis
EN_PH4 Rising Threshold
EN_PH4 Falling Threshold
COMP Shutdown Threshold
REFERENCE AND DAC
System Accuracy (1.000V to 1.600V)
System Accuracy (0.600V to 1.000V)
System Accuracy (0.375V - 0.600V)
DAC Input Low Voltage (VR10, VR11)
DAC Input High Voltage (VR10, VR11)
1. θ
2. For θ
3. Limits established by characterization and are not production tested.
GND - 8V (<400ns, 20µJ) to 24V (<200ns, V
Tech Brief TB379.
JA
V
is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See
PHASE
JC
, the “case temp” location is the center of the exposed metal pad on the package underside.
GND - 5V (<100ns Pulse Width, 2µJ) to PVCC + 0.3V
- 3.5V (<100ns Pulse Width, 2µJ) to V
BOOT
LGATE
PHASE
UGATE
PARAMETER
. . . . . . . . . . . . . . GND - 0.3V to GND + 36V
. . . . . . . . V
. . . . . . . . . . . GND - 0.3V to PVCC + 0.3V
. . . . . . . GND - 0.3V to 15V (PVCC = 12)
BOOT-PHASE
PP
SW
6
Recommended Operating Conditions, Unless Otherwise Specified.
PHASE
. . . . . . -0.3V to 15V (DC)
-0.3V to 16V (<10ns, 10µJ)
- 0.3V to V
BOOT - PHASE
I
I
I
VCC rising
VCC falling
PVCC rising
PVCC falling
R
(Note 3)
(Note 3)
COMP falling
VCC
PVCC1_2
PVCC3
BOOT
BOOT
T
= 100kΩ (±0.1%)
; EN = high
; EN = high
+ 0.3V
+ 0.3V
= 12V)
; EN = high
ISL6312A
ISL6312A
TEST CONDITIONS
Thermal Information
Thermal Resistance
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . +150°C
Maximum Storage Temperature Range . . . . . . . . . .-65°C to +150°C
Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below
Recommended Operating Conditions
VCC Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+5V ±5%
PVCC Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . +5V to 12V ±5%
Ambient Temperature (ISL6312ACRZ) . . . . . . . . . . . . 0°C to +70°C
Ambient Temperature (ISL6312AIRZ) . . . . . . . . . . . .-40°C to +85°C
QFN Package (Notes 1, 2) . . . . . . . . . .
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
1.160
4.25
3.75
4.25
3.60
0.08
1.00
MIN
225
-0.5
-1.0
-2.0
0.1
0.8
15
2
1
-
-
-
-
1.210
TYP
4.38
3.88
4.38
3.88
1.50
0.85
1.06
250
110
4.3
2.1
0.2
20
θ
-
-
-
-
-
-
JA
+32
(°C/W)
1.250
MAX
4.50
4.00
4.50
4.00
1.10
275
1.0
0.3
0.5
1.0
2.0
0.4
25
6
3
-
-
-
-
August 1, 2007
θ
JC
+3.5
FN9290.3
UNITS
(°C/W)
MHz
kHz
mA
mA
mV
mA
%
%
%
V
V
V
V
V
V
V
V
V
V
V