参数资料
型号: MIC2077-2BWM TR
厂商: Micrel Inc
文件页数: 1/17页
文件大小: 0K
描述: IC USB DISTRIB SW QUAD 16-SOIC
标准包装: 1,000
类型: 高端开关
输出数: 4
Rds(开): 150 毫欧
内部开关:
电流限制: 900mA
输入电压: 2.7 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 16-SOIC(0.295",7.50mm 宽)
供应商设备封装: 16-SOIC
包装: 带卷 (TR)
其它名称: MIC2077-2BWMTR
MIC2077-2BWMTR-ND
MIC2027/2077
Quad USB Power Distribution Switch
General Description
Features
The MIC2027 and MIC2077 are quad high-side MOSFET
switches optimized for general-purpose power distribution
requiring circuit protection. The MIC2027/77 are internally
current limited and have thermal shutdown that protects
the device and load.
The MIC2077 offers “smart” thermal shutdown that
reduces current consumption in fault modes. When a
thermal shutdown fault occurs, the output is latched off
until the faulty load is removed. Removing the load or
toggling the enable input will reset the device output.
Both devices employ soft-start circuitry that minimizes
inrush current in applications where highly capacitive loads
are employed.
A fault status output flag is asserted during overcurrent
and thermal shutdown conditions. Transient current limit
faults are internally filtered.
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150m ? maximum on-resistance per channel
2.7V to 5.5V operating range
500mA minimum continuous current per channel
Short-circuit protection with thermal shutdown
Thermally isolated channels
Fault status flag with 3ms filter eliminates false
assertions
Undervoltage lockout
Reverse current flow blocking (no “body diode”)
Circuit breaker mode (MIC2077) reduces power
consumption
Logic-compatible inputs
Soft-start circuit
Low quiescent current
Pin compatible with MIC2524 and MIC2527
The MIC2027/77 are available in 16-pin narrow (150 mil)
and wide (300 mil) SOIC packages.
Applications
Data sheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
Typical Application
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USB peripherals
General purpose power switching
ACPI power distribution
Notebook PCs
PDAs
PC card hot swap
UL Recognized Component
4-Port Self-Powered Hub
Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com
September 2006
1
M9999-091506
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