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参数资料
| 型号： | ISL6441IR |
| 厂商： | Intersil |
| 文件页数： | 5/18页 |
| 文件大小： | 0K |
| 描述： | IC CTRLR SGL/STEP DOWN PWM 28QFN |
| 标准包装： | 60 |
| 应用： | 电源 |
| 电流 - 电源： | 2mA |
| 电源电压： | 5.6 V ~ 24 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-VFQFN 裸露焊盘 |
| 供应商设备封装： | 28-QFN 裸露焊盘（5x5） |
| 包装： | 管件 |
ISL6441
Absolute Maximum Ratings
Thermal Information
Supply Voltage (VCC_5V Pin) . . . . . . . . . . . . . . . . . . . . -0.3V to +7V
Thermal Resistance (Typical)
θ JA (°C/W)
θ JC (°C/W)
Input Voltage (VIN Pin) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+27V
BOOT1, 2 and UGATE1, 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . +35V
PHASE1, 2 and ISEN1, 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . +27V
BOOT1, 2 with Respect to PHASE1, 2 . . . . . . . . . . . . . . . . . . +6.5V
UGATE1, 2. . . . . . . . . . . .(PHASE1, 2 - 0.3V) to (BOOT1, 2 + 0.3V)
28 Lead QFN (Notes 1, 2) . . . . . . . . 34 5
Maximum Junction Temperature (Plastic Package) -55°C to +150°C
Maximum Storage Temperature Range . . . . . . . . . .-65°C to +150°C
Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +85°C
Pb-Free Reflow Profile. . . . . . . . . . . . . . . . . . . . . . . . .see link below
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 noted. Refer to “Block Diagram” on page 3 and “Typical
Application Schematic” on page 4. V IN = 5.6V to 24V, or VCC_5V = 5V ±10%, T A = -40°C to +85°C, Typical
values are at T A = +25°C. 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
VIN SUPPLY
Input Voltage Range
5.6
12
24
V
VCC_5V SUPPLY (Note 3)
Input Voltage
Output Voltage
Maximum Output Current
VIN = VCC_5V
V IN > 5.6V, I L = 20mA
V IN = 12V
4.5
4.5
60
5.0
5.0
-
5.6
5.5
-
V
V
mA
SUPPLY CURRENT
Shutdown Current (Note 4)
Operating Current (Note 5)
SD1 = SD2 = GND
-
-
50
2.0
375
4.0
μA
mA
REFERENCE SECTION
Nominal Reference Voltage
Reference Voltage Tolerance
-
-1.0
0.8
-
-
1.0
V
%
POWER-ON RESET
Rising VCC_5V Threshold
Falling VCC_5V Threshold
4.25
3.95
4.45
4.2
4.5
4.4
V
V
OSCILLATOR
Total Frequency Variation
1.25
1.4
1.55
MHz
Peak-to-Peak Sawtooth Amplitude (Note 6)
V IN = 12V
-
1.5
-
V
Ramp Offset (Note 7)
SYNC Input Rise/Fall Time (Note 7)
SYNC Frequency Range
SYNC Input HIGH Level
SYNC Input LOW Level
SYNC Input Minimum Pulse Width (Note 7)
SYNC Output HIGH Level
V IN = 5V
-
-
-
5.1
3.5
-
10
VCC - 0.6V
0.625
1.0
-
5.6
-
-
-
-
-
-
10.0
6.2
-
1.5
-
-
V
V
ns
MHz
V
V
ns
V
5
FN9197.3
May 26, 2009
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