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參數(shù)資料
| 型號： | TS2938ACP52.5 |
| 廠商： | Taiwan Semiconductor Co., Ltd. |
| 英文描述： | 500mA Ultra Low Dropout Fixed Voltage Regulator with Inhibit |
| 中文描述： | 500mA的超低壓差穩(wěn)壓器固定與抑制 |
| 文件頁數(shù)： | 4/5頁 |
| 文件大?。?/td> | 108K |
| 代理商： | TS2938ACP52.5 |
TS2938/A
4-5
2004/09 rev. A
Application Information (continued)
The next parameter which must be calculated the
maximum allowable temperature rise.
T
R
(max) 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
Inhibit Input
TS2938/A feature an active-low (Inhibit) input that
allows ON/OFF control of the regulator. The Inhibit
input has TTL/CMOS compatible thresholds for simple
interfacing with logic interfacing. Inhibit should be
directly tied to Ground or keep open (not connected).
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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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TS2938ACP53.3 | 制造商:TSC 制造商全稱:Taiwan Semiconductor Company, Ltd 功能描述:500mA Ultra Low Dropout Fixed Voltage Regulator with Inhibit |
| TS2938ACP533 | 制造商:TSC 制造商全稱:Taiwan Semiconductor Company, Ltd 功能描述:500mA Ultra Low Dropout Fixed Voltage Regulator with Inhibit |
| TS2938ACP55.0 | 制造商:TSC 制造商全稱:Taiwan Semiconductor Company, Ltd 功能描述:500mA Ultra Low Dropout Fixed Voltage Regulator with Inhibit |
| TS2938ACP550 | 制造商:TSC 制造商全稱:Taiwan Semiconductor Company, Ltd 功能描述:500mA Ultra Low Dropout Fixed Voltage Regulator with Inhibit |
| TS2938ACP58.0 | 制造商:TSC 制造商全稱:Taiwan Semiconductor Company, Ltd 功能描述:500mA Ultra Low Dropout Fixed Voltage Regulator with Inhibit |
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