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參數(shù)資料
| 型號(hào)： | ISL6441 |
| 廠(chǎng)商： | Intersil Corporation |
| 英文描述： | 1.4MHz Dual, Out-of-Phase, Step-Down PWM and Single Linear Controller(1.4MHz兩路,異相，降壓型PWM，外加一路線(xiàn)性控制器) |
| 中文描述： | 1.4MHz的雙通道，外的階段，降壓型PWM和線(xiàn)性控制器單（1.4MHz的兩路，異相，降壓型脈寬調(diào)制，外加一路線(xiàn)性控制器） |
| 文件頁(yè)數(shù)： | 5/18頁(yè) |
| 文件大?。?/td> | 380K |
| 代理商： | ISL6441 |
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5
FN9197.1
October 4, 2005
Absolute Maximum Ratings
Thermal Information
Supply Voltage (VCC_5V Pin) . . . . . . . . . . . . . . . . . . . .-0.3V to +7V
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)
Thermal Resistance (Typical)
28 Lead QFN (Note 1) . . . . . . . . . . .
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
θ
JA
(°C/W)
36
θ
JC
(°C/W)
5.5
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTE:
1.
θ
JC
is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. For
θ
JA
the “case temp” location is the center of the exposed metal pad on the underside of the package. See Tech Brief TB379.
Electrical Specifications
Recommended operating conditions unless otherwise noted. Refer to Block Diagram and Typical Application
Schematic. V
IN
= 5.6V to 24V, or VCC_5V = 5V ±10%, T
A
= -40°C to 85°C (Note 2),
Typical values are at T
A
= 25°C
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
VIN SUPPLY
Input Voltage Range
5.6
12
24
V
VCC_5V SUPPLY
(Note 3)
Input Voltage
VIN = VCC_5V
4.5
5.0
5.6
V
Output Voltage
V
IN
> 5.6V, I
L
= 20mA
4.5
5.0
5.5
V
Maximum Output Current
V
IN
= 12V
60
-
-
mA
SUPPLY CURRENT
Shutdown Current (Note 4)
SD1 = SD2 = GND
-
50
375
μ
A
Operating Current (Note 5)
-
2.0
4.0
mA
REFERENCE SECTION
Nominal Reference Voltage
-
0.8
-
V
Reference Voltage Tolerance
-1.0
-
1.0
%
POWER-ON RESET
Rising VCC_5V Threshold
4.25
4.45
4.5
V
Falling VCC_5V Threshold
3.95
4.2
4.4
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
V
IN
= 5V
-
0.625
-
V
Ramp Offset (Note 7)
-
1.0
-
V
SYNC Input Rise/Fall Time (Note 7)
-
-
10.0
ns
SYNC Frequency Range
5.1
5.6
6.2
MHz
SYNC Input HIGH Level
3.5
-
-
V
SYNC Input LOW Level
-
-
1.5
V
SYNC Input Minimum Pulse Width (Note 7)
10
-
-
ns
SYNC Output HIGH Level
VCC - 0.6V
-
-
V
ISL6441
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