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参数资料
| 型号： | MIC2005A-2YM6 TR |
| 厂商： | Micrel Inc |
| 文件页数： | 28/30页 |
| 文件大小： | 0K |
| 描述： | IC PWR SWITCH ACTIVE LOW SOT23-6 |
| 标准包装： | 1 |
| 类型： | 高端开关 |
| 输出数： | 1 |
| Rds（开）： | 275 毫欧 |
| 内部开关： | 是 |
| 电流限制： | 500mA |
| 输入电压： | 2.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-6 |
| 供应商设备封装： | SOT-23-6 |
| 包装： | 标准包装 |
| 产品目录页面： | 1113 (CN2011-ZH PDF) |
| 其它名称： | 576-3465-6 |
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Micrel, Inc.
Power Dissipation
Power dissipation depends on several factors such as
the load, PCB layout, ambient temperature, and supply
voltage. Calculation of power dissipation can be
accomplished by the following equation:
MIC20xx Family
In Figure 12, die temperature is plotted against I OUT
assuming a constant case temperature of 85°C. The
plots also assume a worst case R ON of 140m ? at a die
temperature of 135°C. Under these conditions it is clear
that an SOT-23 packaged device will be on the verge of
thermal shutdown, typically 140°C die temperature,
P D = R DS ( ON ) × ( I OUT )
2
when operating at a load current of 1.25A. For this
reason we recommend using MLF ? packaged switches
for any design intending to supply continuous currents
of 1A or more.
To relate this to junction temperature, the following
equation can be used:
Die Temperature vs.
T J = P D × R θ ( J ? A ) + T A
Output Current (T CASE =85°C)
160
140
where:
T J = junction temperature
T A = ambient temperature
R θ (J-A) is the thermal resistance of the package
120
100
80
60
40
SOT-23
MLF
20
In normal operation the switch’s R ON is low enough that
no significant I 2 R heating occurs. Device heating is
most often caused by a short circuit, or very-heavy
load, when a significant portion of the input supply
voltage appears across the switch’s power MOSFET.
Under these conditions the heat generated will exceed
the package and PCB’s ability to cool the device and
thermal limiting will be invoked.
0
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
OUTPUT CURRENT (A)
Figure 12. Die Temperature vs. I OUT
August 2011
28
M9999-080211-D
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC2005M-0.5M6 | 制造商:RF Micro Devices Inc 功能描述: |
| MIC2005M-0.5YM6 | 制造商:RF Micro Devices Inc 功能描述: |
| MIC2005M-0.5YM6 TR | 制造商:Micrel 功能描述:The Micrel MIC2005M-0.5YM6 TR is a 500mA Power Switching IC. |
| MIC2005M-0.8YM6 TR | 制造商:Micrel 功能描述:The Micrel MIC2005M-0.8YM6 TR is a 500mA Power Switching IC. |
| MIC2006-0.5YM6 | 功能描述:IC DISTRIBUTION SW 0.5A SOT23-6 RoHS:是 类别:集成电路 (IC) >> PMIC - 电源分配开关 系列:- 特色产品:XRP252 Switches 标准包装:1 系列:- 类型:高端开关 输出数:2 Rds（开）:140 毫欧 内部开关:是 电流限制:1.15A 输入电压:1.75 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:10-WFDFN 裸露焊盘 供应商设备封装:10-TDFN（3x3） 包装:Digi-Reel® 其它名称:1016-1691-6 |
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