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參數資料
| 型號： | MC7905 |
| 廠商： | Fairchild Semiconductor Corporation |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 3-Terminal 1A Negative Voltage Regulator |
| 中文描述： | 三端1A條負電壓穩壓器 |
| 文件頁數： | 1/12頁 |
| 文件大小： | 186K |
| 代理商： | MC7905 |
DEVICE TYPE/NOMINAL OUTPUT VOLTAGE
MC7905
MC7905.2
MC7906
MC7908
8.0 V
5.0 V
5.2 V
6.0 V
MC7912
MC7915
MC7918
MC7924
12 V
15 V
28 V
24 V
THREE–TERMINAL
NEGATIVE FIXED
VOLTAGE REGULATORS
Pin 1. Ground
2. Input
3. Output
STANDARD APPLICATION
A common ground is required between the input
and the output voltages. The input voltage must
remain typically 2.0 V above more negative even
during the high point of the input ripple voltage.
These two digits of the type number
indicate nominal voltage.
Cin is required if regulator is located an
appreciable distance from power supply filter.
CO improve stability and transient response.
MC79XX
Input
Cin*
0.33
μ
F
CO**
1.0
μ
F
Output
T SUFFIX
PLASTIC PACKAGE
CASE 221A
Heatsink surface
connected to Pin 2.
D2T SUFFIX
PLASTIC PACKAGE
CASE 936
(D2PAK)
3
1
2
3
1
2
Heatsink surface (shown as terminal 4 in
case outline drawing) is connected to Pin 2.
XX,
*
*
**
Order this document by MC7900/D
1
MOTOROLA ANALOG IC DEVICE DATA
The MC7900 series of fixed output negative voltage regulators are
intended as complements to the popular MC7800 series devices. These
negative regulators are available in the same seven–voltage options as the
MC7800 devices. In addition, one extra voltage option commonly employed
in MECL systems is also available in the negative MC7900 series.
Available in fixed output voltage options from –5.0 V to –24 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 1.0 A.
No External Components Required
Internal Thermal Overload Protection
Internal Short Circuit Current Limiting
Output Transistor Safe–Area Compensation
Available in 2% Voltage Tolerance (See Ordering Information)
Representative Schematic Diagram
Gnd
VO
VI
2
2
3.6 k
1.2 k
1.1 k
2.0 k
1
1
4
2
1
2.0 k
8.0 k
1.0 k
1.6 k
4.0 k
0.3
10 k
10 k
20 k
20 k
20 pF
10 pF
240
750
R1
R2
This device contains 26 active transistors.
ORDERING INFORMATION
Device
Output Voltage
Tolerance
Operating
Temperature Range
Package
MC79XXACD2T
2%
TJ= 0
TJ = 0
to +125
°
°
C
Surface Mount
MC79XXCD2T
4%
MC79XXACT
2%
Insertion Mount
MC79XXCT
4%
MC79XXBD2T
4%
TJ= –40
TJ = –40
°
to +125
°
C
Surface Mount
MC79XXBT
Insertion Mount
XX indicates nominal voltage.
Motorola, Inc. 1996
Rev 6
相關PDF資料 |
PDF描述 |
|---|---|
| MC7905A | 3-Terminal 1A Negative Voltage Regulator |
| MC7905ACT | 3-Terminal 1A Negative Voltage Regulator |
| MC7905CT | 3-Terminal 1A Negative Voltage Regulator |
| MC7906 | 3-Terminal 1A Negative Voltage Regulator |
| MC7912ACT | 3-Terminal 1A Negative Voltage Regulator |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MC7905.2 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:THREE-TERMINAL NEGATIVE VOLTAGE REGULATORS |
| MC7905.2ACD2T | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:THREE-TERMINAL NEGATIVE VOLTAGE REGULATORS |
| MC7905.2ACT | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:THREE-TERMINAL NEGATIVE VOLTAGE REGULATORS |
| MC7905.2BD2T | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:THREE-TERMINAL NEGATIVE VOLTAGE REGULATORS |
| MC7905.2BT | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:THREE-TERMINAL NEGATIVE VOLTAGE REGULATORS |
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