参数资料
型号: ISL6440IAZ
厂商: Intersil
文件页数: 4/15页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM CM 24-QSOP
产品培训模块: Solutions for Industrial Control Applications
标准包装: 1,000
PWM 型: 电流模式
输出数: 2
频率 - 最大: 340kHz
占空比: 93%
电源电压: 4.5 V ~ 24 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 85°C
封装/外壳: 24-SSOP(0.154",3.90mm 宽)
包装: 管件
ISL6440
Absolute Maximum Ratings
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 Information
Thermal Resistance (Typical) θ JA (°C/W)
24 Lead QSOP (Note 1). . . . . . . . . . . . . . . . . . . . . . 85
Maximum Junction Temperature (Plastic Package) . -55°C to 150°C
Maximum Storage Temperature Range . . . . . . . . . . . -65°C to 150°C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . . 300°C
Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . -40°C to 85°C
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 JA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
Electrical Specifications
Recommended operating conditions unless otherwise noted. Refer to Block Diagram and Typical Application
Schematic. V IN = 5.6V to 24V, or VCC5 = 5V ±10%, T A = -40°C to 85°C (Note 3),
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
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 4)
Operating Current (Note 5)
SD1 = SD2 = GND
-
-
50
2.0
375
4.0
μ A
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 6)
V IN = 12V
-
1.6
-
V
Ramp Offset (Note 7)
V IN = 5V
-
-
0.667
1.0
-
-
V
V
SHUTDOWN1/SHUTDOWN2
HIGH Level (Converter Enabled)
LOW Level (Converter Disabled)
Internal Pull-up (3 μ A)
2.0
-
-
-
-
0.8
V
V
PWM CONVERTERS
Output Voltage
FB Pin Bias Current
-
-
0.8
-
-
150
V
nA
Maximum Duty Cycle
Minimum Duty Cycle
Cout = 1000pF, T A = 25°C
93
-
-
4
-
-
%
%
4
FN9040.2
October 4, 2005
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