参数资料
型号: ISL6420IAZ
厂商: Intersil
文件页数: 6/19页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM VM 20-QSOP
标准包装: 580
PWM 型: 电压模式
输出数: 1
频率 - 最大: 1.4MHz
占空比: 100%
电源电压: 4.5 V ~ 16 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: 20-SSOP(0.154",3.90mm 宽)
包装: 管件
ISL6420
Absolute Maximum Ratings (Note 1)
Thermal Information
Bias Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+18V
Thermal Resistance (Typical)
θ JA (°C/W)
θ JC (°C/W)
BOOT and Ugate Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +24V
QFN Package (Notes 2, 3). . . . . . . . . . 47 8.5
QSOP Package (Note 2) . . . . . . . . . . . 90 NA
Maximum Junction Temperature (Plastic Package) . . . . . . . +150°C
Maximum Storage Temperature Range . . . . . . . . . .-65°C to +150°C
Ambient Temperature Range. . . . . . . . -40°C to +85°C (for “I” suffix)
Junction Temperature Range. . . . . . . . . . . . . . . . . .-40°C to +125°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. All voltages are with respect to GND.
2. 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.
3. For θ JC , the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications
Operating Conditions, Unless Otherwise Noted: VIN = 12V, PV CC shorted with V CC5 , T A = +25°C
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
VIN SUPPLY
Input Voltage Range
5.6
12
16
V
VIN SUPPLY CURRENT
Shutdown Current (Note 4)
Operating Current (Notes 4, 5)
ENSS = GND
-
-
1.4
2.0
-
3.0
mA
mA
VCC5 SUPPLY (Notes 5, 6)
Input Voltage Range
Output Voltage
Maximum Output Current
VIN = VCC5 for 5V configuration
VIN = 5.6V to 16V, I L = 3mA to 50mA
VIN = 12V
4.5
4.5
50
5.0
5.0
-
5.5
5.5
-
V
V
mA
POWER-ON RESET
Rising V CC5 Threshold
VIN connected to VCC5, 5V input
4.32
4.4
4.45
V
operation
Falling V CC5 Threshold
UVLO Threshold Hysteresis
4.09
0.16
4.1
-
4.25
-
V
V
PWM CONVERTERS
Maximum Duty Cycle
Minimum Duty Cycle
FB pin bias current
F SW = 300kHz
F SW = 300kHz
90
-
-
96
-
80
-
0
-
%
%
nA
Undervoltage Protection
Overvoltage Protection
V UV1
V OVP1
Fraction of the set point; ~3 μ s noise filter
Fraction of the set point; ~1 μ s noise filter
75
112
-
-
85
120
%
%
OSCILLATOR
Free Running Frequency
Total Variation
RT = VCC5, T A = -40°C to +85°C
T A = -40°C to +85°C, with freq. set by
270
-10
300
-
330
+10
kHz
%
external resistor at RT
Frequency Range (Set by RT)
Ramp Amplitude (Note 7)
Δ V OSC
VIN = 12V
100
-
-
1.25
1400
-
kHz
V P-P
6
FN9151.5
February 13, 2008
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