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参数资料
| 型号： | MIC5011YM TR |
| 厂商： | Micrel Inc |
| 文件页数： | 8/12页 |
| 文件大小： | 0K |
| 描述： | IC DRIVER MOSF HI/LOW SIDE 8SOIC |
| 标准包装： | 2,500 |
| 配置： | 高端或低端 |
| 输入类型： | 非反相 |
| 延迟时间： | 25µs |
| 配置数： | 1 |
| 输出数： | 1 |
| 电源电压： | 4.75 V ~ 32 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 带卷 (TR) |
| 其它名称： | MIC5011YMTR MIC5011YMTR-ND |
MIC5011
Applications Information (Continued)
7 to 15V
1N5817
1N4001 (2)
Micrel, Inc.
100nF
+
10μF
15V
Control Input
MIC5011
1 V+ C1 8
2 Input Com 7
3 Source C2 6
100k?
33pF
33k ?
To MIC5011
Input
MPSA05
4 Gnd
Gate 5
IRF540
10mA
Control Input
4N35
100k?
LOAD
Figure 4. Bootstrapped
High-Side Driver
Opto-Isolated Interface (Figure 5). Although the MIC5011
has no special input slew rate requirement, the lethargic
transitions provided by an opto-isolator may cause oscil-
lations on the rise and fall of the output. The circuit shown
accelerates the input transitions from a 4N35 opto-isolator
by adding hysteresis. Opto-isolators are used where the
control circuitry cannot share a common ground with the
MIC5011 and high-current power supply, or where the
control circuitry is located remotely. This implementation is
intrinsically safe; if the control line is severed the MIC5011
will turn OFF.
Industrial Switch (Figure 6). The most common manual
control for industrial loads is a push button on/off switch.
The “on” button is physically arranged in a recess so that
in a panic situation the “off” button, which extends out
from the control box, is more easily pressed. This circuit is
1k ?
Figure 5. Improved
Opto-Isolator Performance
compatible with control boxes such as the CR2943 series
(GE). The circuit is con?gured so that if both switches close
simultaneously, the “off” button has precedence.
This application also illustrates how two (or more) MOS-
FETs can be paralleled. This reduces the switch drop, and
distributes the switch dissipation into multiple packages.
High-Voltage Bootstrap (Figure 7). Although the MIC5011
is limited to operation on 4.75 to 32V supplies, a ?oating
bootstrap arrangement can be used to build a high-side
switch that operates on much higher voltages. The MIC5011
and MOSFET are con?gured as a low-side driver, but the
load is connected in series with ground.
Power for the MIC5011 is supplied by a charge pump. A
20kHz square wave (15Vp-p) drives the pump capacitor
and delivers current to a 100μF storage capacitor. A zener
24V
ON
CR2943-NA102A
( GE )
OFF
100k?
330k?
MIC5011
1 V+ C1 8
2 Input Com 7
3 Source C2 6
4 Gnd
Gate 5
+
10μF
LOAD
IRFP044 (2)
Figure 6. 50-Ampere
Industrial Switch
MIC5011
8
July 2005
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC5011YN | 功能描述:功率驱动器IC High Side MOSFET Predriver - Lead Free RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| MIC5012 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Dual High- or Low-Side MOSFET Driver Not Recommended for New Designs |
| MIC5012BN | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Dual High- or Low-Side MOSFET Driver Not Recommended for New Designs |
| MIC5012BWM | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Dual High- or Low-Side MOSFET Driver Not Recommended for New Designs |
| MIC5013 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Protected High- or Low-Side MOSFET Driver |
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