參數(shù)資料
型號: MC7812A
廠商: ON SEMICONDUCTOR
元件分類: 基準電壓源/電流源
英文描述: 1.0 A Positive Voltage Regulators
中文描述: 1.0A正電壓穩(wěn)壓器
文件頁數(shù): 1/32頁
文件大?。?/td> 270K
代理商: MC7812A
Semiconductor Components Industries, LLC, 2007
May, 2007 - Rev. 17
1
Publication Order Number:
MC7800/D
MC7800, MC7800A,
NCV7805
1.0 A Positive Voltage
Regulators
These voltage regulators are monolithic integrated circuits designed
as fixed-voltage regulators for a wide variety of applications
including local, on-card regulation. These regulators employ internal
current limiting, thermal shutdown, and safe-area compensation. With
adequate heatsinking they can deliver output currents in excess of
1.0 A. Although designed primarily as a fixed voltage regulator, these
devices can be used with external components to obtain adjustable
voltages and currents.
Output Current in Excess of 1.0 A
No External Components Required
Internal Thermal Overload Protection
Internal Short Circuit Current Limiting
Output Transistor Safe-Area Compensation
Output Voltage Offered in 2% and 4% Tolerance
Available in Surface Mount D
2
PAK-3, DPAK-3 and Standard
3-Lead Transistor Packages
NCV Prefix for Automotive and Other Applications Requiring Site
and Control Changes
Pb-Free Packages are Available
MAXIMUM RATINGS
(T
A
= 25
°
C, unless otherwise noted)
Rating
Symbol
Value
Unit
369C
221A
936
Input Voltage
(5.0 - 18 V)
(24 V)
V
I
35
40
Vdc
Power Dissipation
P
D
Internally Limited
W
Thermal Resistance,
Junction-to-Ambient
R
JA
92
65
Figure
14
°
C/W
Thermal Resistance,
Junction-to-Case
R
JC
5.0
5.0
5.0
°
C/W
Storage Junction Temperature
Range
T
stg
-65 to +150
°
C
Operating Junction Temperature
T
J
+150
°
C
Stresses exceeding Maximum Ratings may damage the device. Maximum
Ratings are stress ratings only. Functional operation above the Recommended
Operating Conditions is not implied. Extended exposure to stresses above the
Recommended Operating Conditions may affect device reliability.
*This device series contains ESD protection and exceeds the following tests:
Human Body Model 2000 V per MIL_STD_883, Method 3015.
Machine Model Method 200 V.
TO-220-3
T SUFFIX
CASE 221AB
1
D
2
PAK-3
D2T SUFFIX
CASE 936
2
3
See detailed ordering and shipping information in the package
dimensions section on page 22 of this data sheet.
ORDERING INFORMATION
Heatsink surface
connected to Pin 2.
Pin 1. Input
2. Ground
3. Output
Heatsink surface (shown as terminal 4 in
case outline drawing) is connected to Pin 2.
1
3
STANDARD APPLICATION
A common ground is required between the
input and the output voltages. The input voltage
must remain typically 2.0 V above the output
voltage even during the low point on the input
ripple voltage.
XX,
MC78XX
Input
C
in
*
0.33 F
C
O
**
Output
These two digits of the type number
indicate nominal voltage.
C
in
is required if regulator is located an
appreciable distance from power supply
filter.
C
O
is not needed for stability; however,
it does improve transient response. Values
of less than 0.1 F could cause instability.
*
**
See general marking information in the device marking
section on page 29 of this data sheet.
DEVICE MARKING INFORMATION
DPAK-3
DT SUFFIX
CASE 369C
http://onsemi.com
1 2
3
4
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