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參數(shù)資料
| 型號： | L78M00AB |
| 廠商： | 意法半導體 |
| 英文描述： | Positive Voltage Regulators(精確三端穩(wěn)壓器) |
| 中文描述： | 正電壓調節(jié)器（精確三端穩(wěn)壓器） |
| 文件頁數(shù)： | 12/15頁 |
| 文件大?。?/td> | 202K |
| 代理商： | L78M00AB |
Figure 13 :
Current Regulator.
Figure 14 :
Adjustable Output Regulator.
V
O
, 7.0V to 20V
V
i
– V
O
≥
2.0V
Figure 15 :
Current Boost Regulator.
Figure 16 :
Short-circuit Protection.
The addition of an operational amplifier allows ad-
justment to higher or intermediate values while re-
taining regulation characteristics. The minimum
voltage obtainable with this arrangement is 2.0V
greater than theregulator voltage.
V
XX
R
1
I
o
=
+ I
d
V
BEQ1
R
1
=
I
Q1
β
Q1
I
REQ
–
V
BEQ1
R
1
I
O
= I
REG
+ Q
1
[I
REG
–
]
The circuit of figure 6 can be modified to provide
supply protection against short circuits by adding a
short-circuit sense resistor, R
SC
, and an additional
PNP transistor. The current sensing PNP must be
able to handle the short-circuit current of the
three-terminal regulator. Therefore, a four-ampere
plasticpowertransistor is specified.
L78M00AB/AC SERIES
12/15
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| L78M00AC | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:PRECISION 500mA REGULATORS |
| L78M00AC_SERIES | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| L78M00SERIES | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| L78M00T | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:5 to 24V 0.5A 3-Pin Voltage Regulators |
| L78M00T_10 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:5 to 24V 0.5A 3-Pin Voltage Regulators |
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