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參數(shù)資料
| 型號(hào)： | TS2940CM1.8 |
| 廠商： | Taiwan Semiconductor Co., Ltd. |
| 元件分類(lèi)： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 5.0 AMP POSITIVE VOLTAGE REGULATOR |
| 中文描述： | 5.0放大器正電壓穩(wěn)壓器 |
| 文件頁(yè)數(shù)： | 4/6頁(yè) |
| 文件大?。?/td> | 139K |
| 代理商： | TS2940CM1.8 |
TS2940
4-6
2003/12 rev. B
Application Information (continued)
The next parameter which must be calculated is the
maximum allowable temperature rise, T
R
(max). this is
calculated by the using to formula:
T
R
(max) = T
J
(max) – T
A
(max)
Where: T
J
(max) is the maximum allowable junction
temperature, which is 125
o
C for commercial
grade parts.
T
A
(max) is the maximum ambient temperature
which will be encountered in the application.
Using the calculated values for T
R
(max) and P
D
, the
maximum allowable value for the junction to ambient
thermal resistance,
θ
ja, can now be found:
θ
ja = T
R
(max) / P
D
IMPORTANT: if the maximum allowable value for is
found to be
≥
60
o
C/W for the TO-220 package,
≥
80
o
C/W
for the TO-263 package,
≥
150
o
C/W for the TO-252
package, or
≥
170
o
C/W for the SOT-223 package, no
heatsink is needed since the package alone will dissipate
enough heat to satisfy these requirements. If the
calculated value for
θ
ja falls below these limits, a
heatsink is required.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TS2940CM18 RN | 制造商:SKMI/Taiwan 功能描述:D2PACK;1AMP ULTRA LOW DROPOUT |
| TS2940CM2.5 | 制造商:TSC 制造商全稱(chēng):Taiwan Semiconductor Company, Ltd 功能描述:1A Ultra Low Dropout Fixed Positive Voltage Regulator |
| TS2940CM25 | 功能描述:低壓差穩(wěn)壓器 - LDO 1.0A Ultra LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類(lèi)型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| TS2940CM25 RN | 制造商:SKMI/Taiwan 功能描述:D2PACK;1AMP ULTRA LOW DROPOUT |
| TS2940CM3.3 | 制造商:TSC 制造商全稱(chēng):Taiwan Semiconductor Company, Ltd 功能描述:1A Ultra Low Dropout Fixed Positive Voltage Regulator |
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