Samsung SR-606EV, Service Manual

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Samsung Electronics 59
15. Main components specifications
1) REGULATOR
3-TERMINAL 1A POSITIVE VOLTAGE GRGULATORS
The MC78XX/MC78XXA series of three-terminal positive regulators are available in
the TO-220 package and with several fixed output voltaes, making it useful in a
wide range of applicationes. These regulaators can provide local oncard regulation,
eliminating the distribution problems assciated with single point regulation. Each
type employs internal current limiting, thermal shut-down and safe area protection,
making it essentially indestructible. If adequate heat sinking is provided, they can
delive over aA output corrent. Although designed primarily as fixed voltage
regulators, these devices can be used with external components to obtain
adjustable voltages and currents. MC78XXI is characterized for operation from -40°
°Cto +125°c, and MC78XXC from 0°c to +125°c
TO-220 1 2 3 1 : Input 2 : GND 3 : Output
FEATURES
• UOutput Current up to 1.5A
• UOutput voltages of 5;6;8;9;10;11;12;15;18;24V
• UThermal Overload Protection
• UShort Circuit Protection
• UOutput Transistor SOA Protection
• UNo external components required
• UOutput current in excess of 1A
• UIndustrial and commercial temperature range
ORDERING INFORMATION
BLOCK DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Device
MC78XXCT
MC78XXACT
MC78XXT
Device
MC78XXCT
MC78XXACT
MC78XXT
Package
TO-220
TO-220
TO-220
Operating Temperature
0~+125°C
-40~+125°C
Characteristic
Input Voltage (for V
o
= 5V to 18V)
(for V
o
= 24V)
Thermal Resistance Junction - Cases
Thermal Resistance Junction - Air
Operating Temperature Range MC78XXC/AC
MC78XXI
Storage Temperature Range
Symbol
V
IN
V
IN
θ
JC
θ♣
JA
T
opr
Tstg
Unit
V
V
°C/W
θ
/W
°C
°C
°C
Rating
35
40
5
65
0 ~ +125
-40 ~ +125
-65 ~ +150