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參數資料
| 型號： | NSI45090JDT4G |
| 廠商： | ON Semiconductor |
| 文件頁數： | 7/8頁 |
| 文件大小： | 158K |
| 描述： | 90MA ADJUSTABLE CURRENT REG DPAK |
| 標準包裝： | 1 |
| 系列： | * |
| 功能： | * |
| 檢測方法： | * |
| 精確度： | * |
| 輸入電壓： | * |
| 電流 - 輸出： | * |
| 工作溫度： | * |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | TO-252-3，DPak（2 引線+接片），SC-63 |
| 供應商設備封裝： | DPAK-3 |
| 包裝： | 標準包裝 |
| 其它名稱： | NSI45090JDT4GOSDKR |
NSI45090JDT4G
http://onsemi.com
7
Thermal Considerations
As power in the CCR increases, it might become
necessary to provide some thermal relief. The maximum
power dissipation supported by the device is dependent
upon board design and layout. Mounting pad configuration
on the PCB, the board material, and the ambient temperature
affect the rate of junction temperature rise for the part. When
the device has good thermal conductivity through the PCB,
the junction temperature will be relatively low with high
power applications. The maximum dissipation the device
can handle is given by:
P
D(MAX)
+
T
J(MAX)
* T
A
R
qJA
Referring to the thermal table on page 2 the appropriate
R
qJA
for the circuit board can be selected.
AC Applications
The CCR is a DC device; however, it can be used with full
wave rectified AC as shown in application notes
AND8433/D and AND8492/D and design notes
DN05013/D and DN06065/D. Figure 15 shows the basic
circuit configuration.
Figure 15. Basic AC Application
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