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| 型号： | NCV8141D2T |
| 厂商： | ON Semiconductor |
| 文件页数： | 12/13页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 5V .5A D2PAK-7 |
| 产品变化通告： | Product Discontinuation 27/Jun/2007 |
| 标准包装： | 50 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 5V |
| 输入电压： | 7 V ~ 26 V |
| 电压 - 压降（标准）： | 1.25V @ 500mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 500mA |
| 电流 - 限制（最小）： | 600mA |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-263-8，D²Pak（7 引线+接片），TO-263CA |
| 供应商设备封装： | D2PAK-7 |
| 包装： | 管件 |
NCV8141
I Q is the quiescent current the regulator consumes at
I OUT(max) .
In some cases, none of the packages will be sufficient to
dissipate the heat generated by the IC, and an external
heatsink will be required.
V IN
I IN
SMART
REGULATOR ?
I OUT
V OUT
HEATSINKS
A heatsink effectively increases the surface area of the
Control
Features
I Q
package to improve the flow of heat away from the IC and
into the surrounding air.
Each material in the heat flow path between the IC and the
outside environment will have a thermal resistance. Like
series electrical resistances, these resistances are summed to
determine the value of R q JA .
Figure 15. Single Output Regulator With Key
R q JA + R q JC ) R q CS ) R q SA
(3)
R q JA +
150 ° C * TA
PD
Performance Parameters Labeled
Once the value of P D(max) is known, the maximum
permissible value of R q JA can be calculated:
(2)
The value of R q JA can then be compared with those in the
package section of the data sheet. Those packages with
R q JA ’s less than the calculated value in Equation 2 will keep
the die temperature below 150 ° C.
where:
R q JC = the junction ? to ? case thermal resistance,
R q CS = the case ? to ? heatsink thermal resistance, and
R q SA = the heatsink ? to ? ambient thermal resistance.
R q JC appears in the package section of the data sheet. Like
R q JA , it too is a function of package type. R q CS and R q SA are
functions of the package type, heatsink and the interface
between them. These values appear in heatsink data sheets
of heatsink manufacturers.
http://onsemi.com
12
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相关代理商/技术参数 |
参数描述 |
|---|---|
| NCV8141D2TG | 功能描述:低压差稳压器 - LDO 5V 500mA w/WatchDog RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| NCV8141D2TR4 | 功能描述:低压差稳压器 - LDO 5V 500mA w/WatchDog RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| NCV8141D2TR4G | 功能描述:低压差稳压器 - LDO ANA WATCHDOG REG RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| NCV8184 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Micropower 70 mA Low Dropout Tracking Regulator/Line Driver |
| NCV8184/D | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Micropower 70mA Low Dropout Tracking Regulator / Line Driver |
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