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參數資料
| 型號： | MC79XXCT |
| 廠商： | Vishay Intertechnology,Inc. |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 3-Terminal Fixed Negative Voltage Regulators |
| 中文描述： | 三端固定負電壓穩壓器 |
| 文件頁數： | 1/8頁 |
| 文件大小： | 81K |
| 代理商： | MC79XXCT |
Description
These voltage regulators are intended as complements
to the popular MC78xx Series devices.These negative reg-
ulators are available in the same seven-voltage options as
the MC78xx devices. In addition, one extra voltage
option commonly employed in MECL systems is also
available in the negative MC79xx Series.
Available in fixed output voltage options from –5.0 to –24
volts, these regulators employ current limiting, thermal shut-
down, and safe-area compensation – making them remark-
ably rugged under most operating conditions.With adequate
heatsinking they can deliver output currents in excess of
1.5 ampere.
Features
Output current in excess of 1.5 Ampere
No external components required
Internal thermal overload protection
Internal short-circuit current limiting
Output transistor safe-area compensation
Output voltage offered in 2% tolerance
Mechanical Data
Case:
TO-220 Package
Weight:
approx. 2.24g
Case outline is on the back page
Pin Arrangement
Input
Output
R1
R2
R
SC
GND
Reference
Voltage
Short Circuit
Protection
+
--
Q1
Q2
I1
I2
Internal Block Diagram
Output
Input
Cin
0.33
μ
F
MC79xx
Co
0.1
μ
F
1.
Ground
2.
Input
3.
Output
(heatsink connected to pin 2)
Standard Application
Notes:
A common ground is required between the input and the output voltages.
The input voltage must remain typically 2.0V more negative even during
the high point on the input ripple voltage.
xx = these two digits of the part number indicate output voltage.
Cin is required if regulator is located an appreciable distance from power
supply filter.
Co improves stability and transient response.
123
TO-220
New Product
3-Terminal Fixed Negative Voltage Regulators
MC79xxCT Series
Vishay
formerly General Semiconductor
Document Number 74814
11-Jun-02
www.vishay.com
1
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