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参数资料
| 型号： | MIC2090-1YM5 TR |
| 厂商： | Micrel Inc |
| 文件页数： | 17/23页 |
| 文件大小： | 0K |
| 描述： | IC DISTRIBUTION SW 50MA SOT-23-5 |
| 标准包装： | 1 |
| 类型： | 高端开关 |
| 输出数： | 1 |
| Rds（开）： | 1.2 欧姆 |
| 内部开关： | 是 |
| 电流限制： | 75mA |
| 输入电压： | 1.8 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SC-74A，SOT-753 |
| 供应商设备封装： | SOT-23-5 |
| 包装： | 标准包装 |
| 其它名称： | 576-3890-6 |
Micrel, Inc.
Figure 3. I OUT in Current Limiting for V OUT > 1.8V
MIC2090/MIC2091
Under-Voltage Lock Out (UVLO)
The MIC2090/MIC2091 switches have an Under-Voltage
Lock Out (UVLO) feature that will shut down the switch
in a reproducible way when the input power supply
voltage goes too low. The UVLO circuit disables the
output until the supply voltage exceeds the UVLO
threshold. Hysteresis in the UVLO circuit prevents noise
and finite circuit impedance from causing chatter during
turn-on and turn-off. While disable by the UVLO circuit,
the output switch (power MOSFET) is OFF and no circuit
functions, such as FAULT/ or EN, are considered to be
valid or operative.
OGI (Output Greater than Input)
The internal MOSFET switch turns off when it senses an
output voltage that is greater than the input voltage.
This feature prevents continuous current from flowing
from the output to the input.
If the output voltage rises above V IN by the OGI
threshold voltage (typically 85mV), the internal MOSFET
switch turns off after a period of time, specified in the
electrical characteristics table as OGI TIME . The FAULT/
pin remains high during and after an OGI event.
Figure 5 shows the output voltage, input current and
FAULT/ pin voltage when the output voltage is raised
above the input. Reverse current flows through the
internal MOSFET switch for the OGI TIME period, until the
internal MOSFET switch is turned off and the input
current goes to 0A.
Figure 4. I OUT in Current Limiting for V OUT < 1.8V
Figure 5. OGI Event
July 2011
17
M9999-070611-B
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC2090-2YM5 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Current Limiting Power Distribution Switches |
| MIC2090-2YM5 TR | 功能描述:电源开关 IC - USB 50mA Current Limiting Power Distribution Switch with Latch-off feature RoHS:否 制造商:Micrel 电源电压-最小:2.7 V 电源电压-最大:5.5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-8 封装:Tube |
| MIC2090-2YM5-TR | 功能描述:IC DISTRIB SWITCH 50MA SOT23-5 制造商:microchip technology 系列:- 包装:剪切带（CT） 零件状态:停产 开关类型:通用 输出数:1 比率 - 输入:输出:1:1 输出配置:高端 输出类型:P 通道 接口:开/关 电压 - 负载:1.8 V ~ 5.5 V 电压 - 电源（Vcc/Vdd）:不需要 电流 - 输出（最大值）:50mA 导通电阻（典型值）:700 毫欧 输入类型:非反相 特性:状态标志 故障保护:限流（固定），超温，反向电流，UVLO 工作温度:-40°C ~ 125°C （TJ） 封装/外壳:SC-74A，SOT-753 供应商器件封装:SOT-23-5 标准包装:1 |
| MIC2091-1YM5 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Current Limiting Power Distribution Switches |
| MIC2091-1YM5 TR | 功能描述:电源开关 IC - USB 100mA Current Limiting Power Distribution Switch RoHS:否 制造商:Micrel 电源电压-最小:2.7 V 电源电压-最大:5.5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-8 封装:Tube |
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