参数资料
型号: ISL6244HRZ-T
厂商: Intersil
文件页数: 3/25页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM 32-QFN
标准包装: 6,000
PWM 型: 电流/电压模式
输出数: 4
频率 - 最大: 4MHz
占空比: 75%
电源电压: 4.75 V ~ 5.25 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -10°C ~ 100°C
封装/外壳: 32-VFQFN 裸露焊盘
包装: 带卷 (TR)
ISL6244
Absolute Maximum Ratings
Supply Voltage, VCC (Note 3) . . . . . . . . . . . . . . . . . . . . . . . . . . .+7V
Input, Output, or I/O Voltage . . . . . . . . . . GND -0.3V to V CC + 0.3V
ESD Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Class II
Operating Conditions
Thermal Information
Thermal Resistance θ JA (°C/W) θ JC (°C/W)
QFN Package (Notes 4, 6). . . . . . . . . . 32 4
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . 150°C
Maximum Storage Temperature Range . . . . . . . . . . . -65°C to 150°C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . . 300°C
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +5V ±5%
Ambient Temperature. . . . . . . . . . . . . . . . . . . . . . . . .-10°C to 100°C
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . 125°C
CAUTION: Stress 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 section of this specification is not implied.
NOTES:
3. For VCC > 5.5V, current must be limited to 25mA.
4. 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.
5. Tolerance does not include the VID offset error or any external component tolerances.
6. For θ JC , the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications
Operating Conditions: VCC = 5V, T A = -10°C to 100°C. Unless Otherwise Specified.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
VCC SUPPLY CURRENT
Nominal Supply
Shutdown Supply
VCC = 5VDC; EN = 5VDC; R T = 100k ? ±1%
VCC = 5VDC; EN = 0VDC; R T = 100k ? ±1%
8.0
8.0
10.8
10.3
14.0
13.0
mA
mA
POWER-ON RESET AND ENABLE
POR Threshold
ENABLE Threshold
VCC Rising
VCC Falling
EN Rising
Hysteresis
4.25
3.75
1.215
82
4.35
3.85
1.240
92
4.60
4.00
1.265
102
V
V
V
mV
REFERENCE VOLTAGE AND DAC
System Accuracy (Note 5)
0 to 70°C
-1.2
-1
-
-
1.2
1
%VID
%VID
VID on Fly Step Size
VID Pull Up
VID Input Low Level
VID Input High Level
R T = 100k ?
-
-30
-
2.0
25
-20
-
-
-
-10
0.8
-
mV
μ A
V
V
PIN-ADJUSTABLE OFFSET
OFS Current
-
100
-
μ A
Offset Accuracy
Maximum Offset
ROFS = 5k ? ± 1%
ROFS = 5k ? ±1% , 0 to 70°C
92.0
94.0
-
100.0
100.0
-
108.0
106.0
100.0
mV
mV
OSCILLATOR
Accuracy
Adjustment Range
VFF Range
Max Duty Cycle
RT = 100K
-12.5
245
0.08
0.5
-
-
280
-
-
75
12.5
315
1.0
2.5
-
%
kHz
MHz
V
%
3
FN9106.3
December 28, 2004
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