参数资料
型号: ISL6312IRZ
厂商: Intersil
文件页数: 6/35页
文件大小: 0K
描述: IC CTRLR PWM 4PHASE BUCK 48-QFN
标准包装: 43
应用: 控制器,Intel VR10、VR11、AMD CPU
输入电压: 5 V ~ 12 V
输出数: 1
输出电压: 0.38 V ~ 1.6 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 48-VFQFN 裸露焊盘
供应商设备封装: 48-QFN(7x7)
包装: 管件
ISL6312
Absolute Maximum Ratings
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6V
Supply Voltage, PVCC . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +15V
BOOT Voltage, V BOOT . . . . . . . . . . . . . . GND - 0.3V to GND + 36V
BOOT to PHASE Voltage, V BOOT-PHASE . . . . . . -0.3V to 15V (DC)
-0.3V to 16V (<10ns, 10μJ)
PHASE Voltage, V PHASE . . . . . . . GND - 0.3V to 15V (PVCC = 12)
GND - 8V (<400ns, 20μJ) to 24V (<200ns, V BOOT - PHASE = 12V)
UGATE 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
LGATE 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 Classification . . . . . . . . . . . . . . . . . . . . . . . Class I JEDEC STD
Thermal Information
Thermal Resistance θ JA (°C/W) θ JC (°C/W)
QFN Package (Notes 3, 4) . . . . . . . . . . 32 3.5
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 (ISL6312CRZ) . . . . . . . . . . . . . 0°C to +70°C
Ambient Temperature (ISL6312IRZ) . . . . . . . . . . . . .-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:
3. 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.
4. 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.
MIN
MAX
PARAMETER
TEST CONDITIONS
(Note 6)
TYP
(Note 6) UNITS
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
I VCC ; EN = high
I PVCC1_2 ; EN = high
I PVCC3 ; EN = high
VCC rising
VCC falling
PVCC rising
PVCC falling
15
2
1
4.25
3.75
4.25
3.60
20
4.3
2.1
4.38
3.88
4.38
3.88
25
6
3
4.50
4.00
4.50
4.00
mA
mA
mA
V
V
V
V
PWM MODULATOR
Oscillator Frequency Accuracy, f SW
Adjustment Range of Switching Frequency
Oscillator Ramp Amplitude, V PP
R T = 100k Ω (± 0.1%)
(Note 5)
(Note 5)
225
0.08
-
250
-
1.50
275
1.0
-
kHz
MHz
V
CONTROL THRESHOLDS
EN Rising Threshold
EN Hysteresis
EN_PH4 Rising Threshold
EN_PH4 Falling Threshold
-
-
1.160
1.00
0.85
110
1.210
1.06
-
-
1.250
1.10
V
mV
V
V
COMP Shutdown Threshold
COMP falling
0.1
0.2
0.3
V
REFERENCE AND DAC
System Accuracy (1.000V - 1.600V)
System Accuracy (0.600V - 1.000V)
System Accuracy (0.375V - 0.600V)
DAC Input Low Voltage (VR10, VR11)
DAC Input High Voltage (VR10, VR11)
-0.5
-1.0
-2.0
-
0.8
-
-
-
-
-
0.5
1.0
2.0
0.4
-
%
%
%
V
V
6
FN9289.6
February 1, 2011
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