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MC79M05XBT PDF预览

MC79M05XBT

更新时间: 2024-11-23 22:51:23
品牌 Logo 应用领域
摩托罗拉 - MOTOROLA 稳压器
页数 文件大小 规格书
8页 122K
描述
THREE-TERMINAL NEGATIVE FIXED VOLTAGE REGULATORS

MC79M05XBT 数据手册

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Order this document by MC79M00/D  
The MC79M00 series of fixed output negative voltage regulators are  
intended as complements to the popular MC78M00 series devices.  
Available in fixed output voltage options of –5.0, –8.0, –12 and –15 V,  
these regulators employ current limiting, thermal shutdown, and safe–area  
compensation – making them remarkably rugged under most operating  
conditions. With adequate heatsinking they can deliver output currents in  
excess of 0.5 A.  
THREE–TERMINAL  
NEGATIVE FIXED  
VOLTAGE REGULATORS  
No External Components Required  
Internal Thermal Overload Protection  
Internal Short Circuit Current Limiting  
Output Transistor Safe–Area Compensation  
Also Available in Surface Mount DPAK (DT) Package  
T SUFFIX  
PLASTIC PACKAGE  
CASE 221A  
Heatsink surface  
connected to Pin 2.  
DEVICE TYPE/NOMINAL OUTPUT VOLTAGE  
MC79M05  
MC79M08  
–5.0 V  
–8.0 V  
MC79M12  
MC79M15  
–12 V  
–15 V  
1
2
3
Pin 1. Ground  
ORDERING INFORMATION  
Output  
2. Input  
3. Output  
Operating  
Voltage  
Device  
Temperature Range  
Package  
DPAK  
Tolerance  
MC79MXXBDT, BDT–1  
MC79MXXBT  
T = 40° to +125°C  
J
1
1
Plastic Power  
DPAK  
2
3
3
4.0%  
MC79MXXCDT, CDT–1  
MC79MXXCT  
DT SUFFIX  
PLASTIC PACKAGE  
CASE 369A  
DT–1 SUFFIX  
PLASTIC PACKAGE  
CASE 369  
T = 0° to +125°C  
J
Plastic Power  
XX indicates nominal voltage.  
(DPAK)  
(DPAK)  
Heatsink surface (shown as terminal 4 in  
case outline drawing) is connected to Pin 2.  
Representative Schematic Diagram  
Gnd  
STANDARD APPLICATION  
MC79MXX  
Input  
Output  
4.0 k  
R1  
R2  
C
**  
C
*
O
in  
1.0  
µ
F
0.33  
µ
F
Acommongroundisrequiredbetweentheinput  
and the output voltages. The input voltage must  
remain typically 1.1 V more negative even during  
the high point of the input ripple voltage.  
V
10 k  
O
20 pF  
10 pF 10 k  
240  
XX, These two digits of the type number indicate  
nominal voltage.  
20 k 20 k  
2.0 k  
* C is required if regulator is located an  
0.3  
in  
1.1 k  
100  
appreciable distance from power supply filter.  
750  
** C improve stability and transient response.  
O
V
I
This device contains 31 active transistors.  
Motorola, Inc. 1996  
Rev 4  

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