参数资料
型号: MIC2174C-1YMM TR
厂商: Micrel Inc
文件页数: 5/27页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM 10-MSOP
标准包装: 2,500
系列: Hyper Speed Control™
PWM 型: 混合物
输出数: 1
频率 - 最大: 338kHz
占空比: 87%
电源电压: 3 V ~ 40 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 125°C
封装/外壳: 10-TFSOP,10-MSOP(0.118",3.00mm 宽)
包装: 带卷 (TR)
Micrel, Inc.
Electrical Characteristics (4)
V BST ? V LX = 5V; T A = 25°C, unless noted. Bold values indicate ? 40°C ≤ T J ≤ +125°C.
MIC2174/MIC2174C
Parameter
Condition
Min.
Typ.
Max.
Units
Soft-Start
Soft-Start Period
Oscillator
6
ms
Switching Frequency
Maximum Duty Cycle
Minimum Duty Cycle
MIC2174
MIC2174C
Measured at DH (7)
MIC2174C
Measured at DH, V FB = 1V
0.225
0.202
0.3
0.27
87
87
0
0.375
0.338
MHz
%
%
FET Drives
DH, DL Output Low Voltage
DH, DL Output High Voltage
I SINK = 10mA
I SOURCE = 10mA
V IN -0.1V
or
V BST -0.1V
0.1
V
V
DH On-Resistance, High State
DH On-Resistance, Low State
DL On-Resistance, High State
DL On-Resistance, Low State
LX Leakage Current
HSD Leakage Current
V LX = 40V, V IN = 5.5V,V BST = 45.5V
V LX = 40V, V IN = 5.5V,V BST = 45.5V
2.1
1.8
1.8
1.2
3.3
3.3
3.3
2.3
55
21
?
?
?
?
μA
μA
Thermal Protection
Over-Temperature Shutdown
Over-Temperature Shutdown
Hysteresis
Shutdown Control
155
10
° C
° C
EN Logic Level Low
3V < V IN <5.5V
0.4
0.8
V
EN Logic Level High
EN Pull-Up Current
3V < V IN <5.5V
0.9
50
1.2
V
μA
Note:
7.
The maximum duty cycle is limited by the fixed mandatory off time T OFF of typical 363ns.
September 2010
5
M9999-091310-C
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