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| 型号： | MIC2549A-2YTS |
| 厂商： | Micrel Inc |
| 文件页数： | 1/18页 |
| 文件大小： | 0K |
| 描述： | IC SW CURR LIMIT HI SIDE 14TSSOP |
| 标准包装： | 94 |
| 类型： | 高端 |
| 输入类型： | 非反相 |
| 输出数： | 1 |
| 导通状态电阻： | 35 毫欧 |
| 电流 - 峰值输出： | 3A |
| 电源电压： | 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： | 14-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 14-TSSOP |
| 包装： | 管件 |
MIC2545A/2549A
Programmable Current-Limit
High-Side Switch
General Description
Features
The MIC2545A and MIC2549A are integrated high-side
power switches optimized for low-loss DC power switching
and other power-management applications, including
advanced configuration and power interface (ACPI). The
MIC2545A/49A is a cost-effective, highly-integrated
solution that requires few external components to satisfy
USB and ACPI requirements.
Load current management features include a precision,
resistor-programmable output current-limit and a soft-start
circuit, which minimizes inrush current when the switch is
enabled. Thermal shutdown, along with adjustable current-
limit, protects the switch and the attached device.
The MIC2545A/49A’s open-drain flag output is used to
indicate current-limiting or thermal shutdown to a local
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2.7V to 5.5V input
Adjustable current-limit up to 3A
Reverse current flow blocking
90μA typical on-state supply current
1μA typical off-state supply current
50m ? maximum on-resistance
Open-drain fault flag
Thermal shutdown
Thermal-shutdown output latch (MIC2549A)
2ms (slow) soft-start turn-on, fast turnoff
Available with active-high or active-low enable
controller. The MIC2549A has an additional internal latch
which turns the output off upon thermal shutdown,
Applications
providing robust fault control. The enable signal is
compatible with both 3V and 5V logic, and is also used as
the thermal shutdown latch reset for the MIC2549A.
The MIC2545A and MIC2549A are available in active-high
and active-low enable versions in 8-pin DIP, SOIC, and
TSSOP packages.
Data sheets and support documentation can be found on
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USB power distribution
PCI Bus Power Switching
Notebook PC
ACPI power distribution
PC card hot swap applications
Inrush current-limiting
Micrel’s web site at: www.micrel.com .
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Typical Application
Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com
June 2011
M9999-062711-A
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC2549A-2YTS TR | 功能描述:电源开关 IC - USB Programmable Current Limit High-Side Switch with Over-Temperature Latch (Lead Free) 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 |
| MIC2550ABML TR | 功能描述:IC USB TRANSCEIVER 16-MLF RoHS:否 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 标准包装:1,140 系列:AU 类型:收发器 驱动器/接收器数:1/1 规程:CAN 电源电压:5.3 V ~ 27 V 安装类型:表面贴装 封装/外壳:14-SOIC（0.154"，3.90mm 宽） 供应商设备封装:14-SO 包装:管件 其它名称:935267940512AU5790D14AU5790D14-ND |
| MIC2550ABMLTR | 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel |
| MIC2550ABTS | 功能描述:IC USB TRANSCEIVER 14-TSSOP RoHS:否 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 标准包装:1,140 系列:AU 类型:收发器 驱动器/接收器数:1/1 规程:CAN 电源电压:5.3 V ~ 27 V 安装类型:表面贴装 封装/外壳:14-SOIC（0.154"，3.90mm 宽） 供应商设备封装:14-SO 包装:管件 其它名称:935267940512AU5790D14AU5790D14-ND |
| MIC2550ABTS TR | 功能描述:IC USB TRANSCEIVER 14-TSSOP RoHS:否 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 标准包装:1,140 系列:AU 类型:收发器 驱动器/接收器数:1/1 规程:CAN 电源电压:5.3 V ~ 27 V 安装类型:表面贴装 封装/外壳:14-SOIC（0.154"，3.90mm 宽） 供应商设备封装:14-SO 包装:管件 其它名称:935267940512AU5790D14AU5790D14-ND |
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