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| 型号： | ISL6443AIRZ |
| 厂商： | Intersil |
| 文件页数： | 5/19页 |
| 文件大小： | 0K |
| 描述： | IC CTRLR SGL/STEP DOWN PWM 28QFN |
| 产品培训模块： | Solutions for Industrial Control Applications |
| 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 |
| 产品目录页面： | 1243 (CN2011-ZH PDF) |
ISL6443A
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 (V IN Pin). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+27V
BOOT1, 2 and UGATE1, 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . .+35V
PHASE1, 2 and ISEN1, 2
. . . . . . . . . . . . . . . . . . . . .-5V (<100ns, 10μJ)/-0.3V (DC) to +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) . . . . . . . . 36 4
28 Lead TSSOP (Note 1) . . . . . . . . . 75 NA
Maximum Junction Temperature . . . . . . . . . . . . . . .-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. θ JA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
3. 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 (Note 7),
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
Input Voltage Range
V IN = VCC (Note 4)
4.5
5.0
5.6
V
VCC_5V SUPPLY (Note 4)
Input Voltage
4.5
5.0
5.6
V
Output Voltage
Maximum Output Current
V IN > 5.6V, I L = 20mA
V IN = 12V
4.5
60
5.0
-
5.5
-
V
mA
SUPPLY CURRENT
Shutdown Current (Note 5)
Operating Current (Note 6)
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
260
300
340
kHz
Peak-to-Peak Sawtooth Amplitude (Note 7)
V IN = 12V
-
1.6
-
V
Ramp Offset (Note 7)
SYNC Input Rise/Fall Time (Note 7)
SYNC Frequency Range
SYNC Input HIGH Level
SYNC Input LOW Level
V IN = 5V
-
-
-
4.16
3.5
-
0.667
1.0
5.0
4.8
-
-
-
-
-
5.44
-
1.5
V
V
ns
MHz
V
V
5
FN6600.2
June 2, 2008
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