LM7820CT [FAIRCHILD]
Fixed Positive Standard Regulator, 20VPSFM3, TO-220, 3 PIN;
| 型号： | LM7820CT |
| 厂家： | 
FAIRCHILD SEMICONDUCTOR |
| 描述： | Fixed Positive Standard Regulator, 20VPSFM3, TO-220, 3 PIN 局域网 输出元件 调节器 |
| 文件： | 总18页 (文件大小：136K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
www.fairchildsemi.com
MC78MXX (LM78MXX) (KA78MXX)
3-Terminal 0.5A Positive Voltage Regulators
Features
Description
• Output Current up to 0.5A
• Output Voltages of 5, 6, 8, 10, 12, 15, 18, 20, 24V
• Thermal Overload Protection
The MC78MXX (LM78MXX) (KA78MXX) series of three-
terminal positive regulators are available in the TO-220/
D-PAK package with several fixed output voltages making it
useful in a wide range of applications.
• Short Circuit Protection
• Output Transistor SOA Protection
• Industrial and commercial temperature range
TO-220
D-PAK
1. Input 2. GND 3. Output
Rev. 1.0.0
©2000 Fairchild Semiconductor Corporation
MC78MXX (LM78MXX) (KA78MXX)
Internal Block Diagram
2
MC78MXX (LM78MXX) (KA78MXX)
Absolute Maximum Ratings (Ta=+25°C, Unless otherwise specified)
Parameter
Input Voltage (for V = 5V to 18V)
Symbol
Value
Unit
V
V
35
40
V
V
O
I
I
(for V = 24V)
O
Thermal Resistance Junction-Cases
Thermal Resistance Junction-Air
R
5
°C/W
°C/W
θJC
R
65
θJA
Operating Temperature Range KA78MXXI/RI
KA78MXX/R
T
OPR
-40~ + 125
0~ + 125
°C
°C
Storage Temperature Range
T
STG
-65~ + 150
°C
KA78M05/I/R/RI Electrical Characteristics
(Refer to the test circuits, T
≤ T ≤ +125°C, I =350mA, V =10V, unless otherwise specified, C = 0.33mF, C =0.1mF)
MIN
J
O
I
I
O
Parameter
Symbol
Conditions
Min.
4.8
Typ.
Max.
5.2
Units
Output Voltage
V
O
T =+25°C
5
5
V
J
I
= 5 to 350mA
4.75
5.25
O
V = 7 to 20V
I
Line Regulation
Load Regulation
Quiescent Current
∆V
I
= 200mA
V = 7 to 25V
-
-
-
-
-
-
-
-
100
50
mV
mV
O
O
J
I
T =+25°C
V = 8 to 25V
I
-
∆V
I
I
= 5mA to 0.5A, T =+25°C
-
100
50
O
O
J
= 5mA to 200mA, T =+25 °C
-
4.0
-
O
J
I
Q
T =+25°C
6
mA
mA
J
Quiescent Current
Change
∆I
Q
I
= 5mA to 350mA
0.5
0.8
O
I
= 200mA
-
O
V = 8 to 25V
I
Output Voltage Drift
∆V/∆T
I
= 5mA
-
- 0.5
-
mV/°C
O
T = 0 to +125°C
J
Output Noise Voltage
Ripple Rejection
V
f = 10Hz to 100KHz
-
40
-
-
-
mV/V
O
N
RR
f = 120Hz, I = 300mA
62
dB
O
V = 8 to 18V
I
Dropout Voltage
Short Circuit Current
Peak Current
V
T =+25°C, I = 500mA
-
-
-
2
-
-
-
V
D
J
O
I
T =+25°C, V = 35V
300
700
mA
mA
SC
J
I
I
T =+25°C
J
PK
NOTE:
1. T
<T <T
MIN MAX
J
KA78MXX/Rl: T
= -40°C, T
= 0°C, T
= +125°C
= +125°C
MIN
MAX
KA78MXX/R: T
MIN MAX
2. Load and line regulation are specified at constant junction temperature. Change in V due to heating effects must be taken
O
into account separately. Pulse testing with low duty is used.
3
MC78MXX (LM78MXX) (KA78MXX)
KA78M06/I/R/RI Electrical Characteristics
(Refer to the test circuits, T
≤T ≤ +125°C, I =350mA, V =11V, unless otherwise specified, C = 0.33mF, C =0.1mF)(
MIN
J
O
I
I
O
Parameter
Symbol
Conditions
Min.
5.75
5.7
Typ.
Max.
Units
Output Voltage
V
O
TJ=+25°C
6
6
6.25
6.3
V
I
= 5 to 350mA
O
V = 8 to 21V
I
Line Regulation
Load Regulation
Quiescent Current
∆V
I
= 200mA V = 8 to 25V
-
-
-
-
-
-
-
-
100
50
mV
mV
O
O
J
I
T =+25°C
V = 9 to 25V
I
-
∆V
I
I
= 5mA to 0.5A, T =+25°C
-
120
60
O
O
J
= 5mA to 200mA, T =+25°C
-
4.0
-
O
J
I
Q
T =+25°C
6
mA
mA
J
Quiescent Current Change
∆I
Q
I
I
= 5mA to 350mA
= 200mA
0.5
0.8
O
-
O
V = 9 to 25V
I
Output Voltage Drift
∆V/∆T
I
O
= 5mA
-
- 0.5
-
mV/°C
T = 0 to +125°C
J
Output Noise Voltage
Ripple Rejection
V
f = 10Hz to 100KHz
-
45
-
-
-
mV/V
O
N
RR
f = 120Hz, I = 300mA
59
dB
O
V = 9 to 19V
I
Dropout Voltage
Short Circuit Current
Peak Current
V
T =+25°C, I = 500mA
-
-
-
2
-
-
-
V
D
J
O
I
T = +25°C, V = 35V
300
700
mA
mA
SC
J
I
I
T =+25°C
J
PK
NOTE:
1. T
:
MIN
KA78MXX/RI: T
KA78MXX/R: T
= -40°C
= 0°C
MIN
MIN
2. Load and line regulation are specified at constant, junction temperature. Change in V due to heating effects must be taken
O
into account separately. Pulse testing with low duty is used.
4
MC78MXX (LM78MXX) (KA78MXX)
KA78M08/I/R/RI ELECTRICAL CHARACTERISTICS
(Refer to the test circuits, T
≤T ≤ +125°C, I =350mA, V =14V, unless otherwise specified, C =0.33mF, C =0.1mF)
MIN
J
O
I
I
O
Parameter
Symbol
Conditions
Min.
7.7
Typ.
Max.
Units
Output Voltage
V
O
T =+25 °C
8
8
8.3
8.4
V
J
I
= 5 to 350mA
7.6
O
V = 10.5 to 23V
I
Line Regulation
Load Regulation
Quiescent Current
∆V
I
= 200mA V = 10.5 to 25V
-
-
-
-
-
-
-
-
100
50
mV
mV
O
O
J
I
T =+25°C
V = 11 to 25V
I
-
∆V
I
I
= 5mA to 0.5A, T =+25°C
-
160
80
O
O
J
= 5mA to 200mA, T =+25°C
-
4.0
-
O
J
I
Q
T =+25°C
6
mA
mA
J
Quiescent Current Change
∆I
Q
I
I
= 5mA to 350mA
= 200mA
0.5
0.8
O
-
O
V = 10.5 to 25V
I
Output Voltage Drift
RR
I
O
= 5mA
-
- 0.5
-
mV/°C
T = 0 to +125°C
J
Output Noise Voltage
Ripple Rejection
V
f = 10Hz to 100KHz
-
52
-
-
-
mV/V
O
N
RR
f = 120Hz, I = 300mA
56
dB
O
V = 9 to 19V
I
Dropout Voltage
Short Circuit Current
Peak Current
V
T =+25°C,I = 500mA
-
-
-
2
-
-
-
V
D
J
O
I
T =+25°C, V = 35V
300
700
mA
mA
SC
J
I
I
T =+25°C
J
PK
NOTE:
1. T
:
MIN
KA78MXX/RI: T
= -40°C
= 0°C
MIN
KA78MXX/R: T
MIN
2. Load and line regulation are specified at constant, junction temperature. Change in V due to heating effects must be taken
O
into account separately. Pulse testing with low duty is used.
5
MC78MXX (LM78MXX) (KA78MXX)
KA78M10/I/R/RI Electrical Characteristics
(Refer to the test circuits, T
≤T ≤ +125°C, I =350mA, V =17V, unless otherwise specified, C = 0.33mF, C =0.1mF)
MIN
J
O
I
I
O
Parameter
Symbol
Conditions
Min.
9.6
Typ.
10
Max.
Units
Output Voltage
V
O
T = +25°C
10.4
10.5
V
J
I
= 5 to 350mA
9.5
10
O
V = 12.5 to 25V
I
Line Regulation
Load Regulation
Quiescent Current
∆V
I
= 200mA V = 12.5 to 25V
-
-
-
-
-
-
-
-
100
50
mV
mV
O
O
J
I
T =+25°C
V = 13 to 25V
I
-
∆V
I
I
= 5mA to 0.5A, T =+25°C
-
200
100
6
O
O
J
= 5mA to 200mA, T =+25°C
-
4.1
-
O
J
I
Q
T =+25°C
mA
mA
J
Quiescent Current Change
∆I
Q
I
I
= 5mA to 350mA
= 200mA
0.5
0.8
O
-
O
V = 12.5 to 25V
I
Output Voltage Drift
∆V/∆T
I
O
= 5mA
-
- 0.5
-
mV/°C
T = 0 to +125°C
J
Output Noise Voltage
Ripple Rejection
V
f = 10Hz to 100KHz
-
65
-
-
-
mV/V
O
N
RR
f = 120Hz, I = 300mA
55
dB
O
V = 13 to 23V
I
Dropout Voltage
Short Circuit Current
Peak Current
V
T =+25°C, I = 500mA
-
-
-
2
-
-
-
V
D
J
O
I
T = +25°C, V = 35V
300
700
mA
mA
SC
J
I
I
T =+25°C
J
PK
NOTE:
1. T
:
MIN
KA78MXX/RI: T
= -40°C
= 0°C
MIN
KA78MXX/R: T
MIN
2. Load and line regulation are specified at constant, junction temperature. Change in V due to heating effects must be taken
O
into account separately. Pulse testing with low duty is used.
6
MC78MXX (LM78MXX) (KA78MXX)
KA78M12/I/R/RI Electrical Characteristics
(Refer to the test circuits, T
≤T ≤125°C, I =350mA, V =19V, unless otherwise specified, C =0.33mF, C =0.1mF)
MIN
J
O
I
I
O
Parameter
Symbol
Conditions
Min.
11.5
11.5
Typ.
12
Max.
12.5
12.6
Units
Output Voltage
V
O
T =+25°C
V
J
I
= 5 to 350mA
12
O
V = 14.5 to 27V
I
Line Regulation
Load Regulation
Quiescent Current
∆V
I
= 200mA V = 14.5 to 30V
-
-
-
-
-
-
-
-
100
50
mV
mV
O
O
J
I
T =+25°C
V = 16 to 30V
I
-
-
∆VO
I
I
= 5mA to 0.5A, T =+25°C
240
120
6
O
J
= 5mA to 200mA, T =+25°C
-
O
J
I
Q
T =+25°C
4.1
mA
mA
J
Quiescent Current Change
∆I
Q
I
I
= 5mA to 350mA
= 200mA
0.5
0.8
O
-
O
V = 14.5 to 30V
I
Output Voltage Drift
∆V/∆T
I
= 5mA
-
- 0.5
75
-
mV/°C
O
J
T = 0 to +125°C
Output Noise Voltage
Ripple Rejection
V
N
f = 10Hz to 100KHz
-
-
-
mV/V
O
RR
f = 120Hz, I = 300mA
55
dB
O
V = 15 to 25V
I
Dropout Voltage
Short Circuit Current
Peak Current
V
T =+25°C, I = 500mA
-
-
-
2
-
-
-
V
D
J
O
I
T = +25°C, V = 35V
300
700
mA
mA
SC
J
I
I
T = +25°C
J
PK
NOTE:
1. T
:
MIN
KA78MXX/RI: T
= -40°C
= 0°C
MIN
KA78MXX/R: T
MIN
2. Load and line regulation are specified at constant, junction temperature. Change in V due to heating effects must be taken
O
into account separately. Pulse testing with low duty is used.
7
MC78MXX (LM78MXX) (KA78MXX)
KA78M15/I/R/RI ELECTRICAL CHARACTERISTICS
(Refer to the test circuits, T
≤T ≤ +125°C, I =350mA, V =23V, unless otherwise specified, C = 0.33mF, C =0.1mF)
MIN
J
O
I
I
O
Parameter
Symbol
Conditions
Min.
14.4
Typ.
15
Max.
15.6
Units
Output Voltage
V
O
T =+25°C
V
J
I
O
= 5 to 350mA
14.25
15
15.75
V = 17.5 to 30V
I
Line Regulation
Load Regulation
Quiescent Current
∆V
I
= 200mA V = 17.5 to 30V
-
-
-
-
-
-
-
-
100
50
mV
mV
O
O
J
I
T =+25°C
V = 20 to 30V
I
-
∆V
I
I
= 5mA to 0.5A, T =+25°C
-
300
150
6
O
O
J
= 5mA to 200mA, T =+25°C
-
4.1
-
O
J
I
Q
T =+25°C
mA
mA
J
Quiescent Current Change
∆I
I
I
= 5mA to 350mA
= 200mA
0.5
0.8
Q
O
-
O
V = 17.5 to 30V
I
Output Voltage Drift
∆V/∆T
I
= 5mA
-
- 1
-
-
mV/°C
O
J
T = 0 to +125°C
Output Noise Voltage
Ripple Rejection
V
N
f = 10Hz to 100KHz
-
100
mV/V
O
RR
f = 120Hz, I = 300mA
54
dB
O
V = 18.5 to 28.5V
I
Dropout Voltage
Short Circuit Current
Peak Current
V
T =+25°C, I = 500mA
-
-
-
2
-
-
-
V
D
J
O
I
T = +25°C, V = 35V
300
700
mA
mA
SC
J
I
I
T = + 25°C
J
PK
NOTE:
1. T
:
MIN
KA78MXX/RI: T
= -40°C
= 0°C
MIN
KA78MXX/R: T
MIN
2. Load and line regulation are specified at constant, junction temperature. Change in V due to heating effects must be taken
O
into account separately. Pulse testing with low duty is used.
8
MC78MXX (LM78MXX) (KA78MXX)
KA78M18/I/R/RI Electrical Characteristics
(Refer to the test circuits, T
≤T ≤ +125°C, I =350mA, V =26V, unless otherwise specified, C = 0.33mF, C =0.1mF)
MIN
J
O
I
I
O
Parameter
Symbol
Conditions
Min.
17.3
17.1
Typ.
18
Max.
18.7
18.9
Units
Output Voltage
V
O
T =+25°C
V
J
I
= 5 to 350mA
18
O
V = 20.5 to 33V
I
Line Regulation
Load Regulation
Quiescent Current
∆V
I
= 200mA V = 21 to 33V
-
-
-
-
-
-
-
-
100
50
mV
mV
O
O
I
T =+25°C
V = 24 to 33V
I
-
J
∆VΟ
I
O
I
O
= 5mA to 0.5A, T =+25°C
-
360
180
6
J
= 5mA to 200mA, T =+25°C
-
4.2
-
J
I
Q
T =+25°C
mA
mA
J
Quiescent Current Change
∆I
Q
I
I
= 5mA to 350mA
= 200mA
0.5
0.8
O
-
O
V = 21 to 33V
I
Output Voltage Drift
∆V/∆T
I
=5mA
-
-1.1
100
-
mV/°C
O
J
T =0 to 125°C
Output Noise Voltage
Ripple Rejection
Dropout Voltage
Short Circuit Current
Peak Current
V
N
f=10Hz to 100KHz
-
-
-
-
-
µV/V
O
RR
f=120Hz, I =300mA
53
-
dB
V
O
V
D
T =+25°C, I =500mA
2
J
O
I
T =+25°C, V =35V
-
300
700
mA
mA
SC
J
I
I
T =+25°C
-
PK
J
NOTE:
1. T
:
MIN
KA78MXX/R: T
KA78MXX/R: T
= -40°C
= 0°C
MIN
MIN
2. Load and line regulation are specified at constant, junction temperature. Change in V due to heating effects must be taken
O
into account separately. Pulse testing with low duty is used.
9
MC78MXX (LM78MXX) (KA78MXX)
KA78M20/I/R/RI Electrical Characteristics
(Refer to the test circuits, T
≤T ≤ +125°C, I =350mA, V =29V, unless otherwise specified, C = 0.33mF, C =0.1mF)
MIN
J
O
I
I
O
Parameter
Symbol
Conditions
Min.
19.2
19
Typ.
20
Max.
Units
Output Voltage
V
O
T = +25°C
20.8
21
V
J
I
= 5 to 350mA
20
O
V = 23 to 35V
I
Line Regulation
Load Regulation
Quiescent Current
∆V
I
= 200mA V = 23 to 35V
-
-
-
-
-
-
-
-
100
50
mV
mV
O
O
J
I
T =+25°C
V = 24 to 35V
I
-
∆V
I
I
= 5mA to 0.5A, T =+25°C
-
400
200
6
O
O
J
= 5mA to 200mA, T =+25°C
-
4.2
-
O
J
I
Q
T =+25°C
mA
mA
J
Quiescent Current Change
∆I
Q
I
I
= 5mA to 350mA
= 200mA
0.5
0.8
O
-
O
V = 23 to 35V
I
Output Voltage Drift
∆V/∆T
I
= 5mA
-
-1.1
-
mV/°C
O
T = 0 to +125°C
J
Output Noise Voltage
Ripple Rejection
V
f = 10Hz to 100KHz
-
110
-
-
-
mV/V
O
N
RR
f = 120Hz, I = 300mA
53
dB
O
V = 24 to 34V
I
Dropout Voltage
Short Circuit Current
Peak Current
V
T =+25°C, I = 500mA
-
-
-
2
-
-
-
V
D
J
O
I
T = +25°C, V = 35V
300
700
mA
mA
SC
J
I
I
T = +25°C
J
PK
NOTE:
1. T
:
MIN
KA78MXX/RI: T
= -40°C
= 0°C
MIN
KA78MXX/R: T
MIN
2. Load and line regulation are specified at constant, junction temperature. Change in V due to heating effects must be taken
O
into account separately. Pulse testing with low duty is used.
10
MC78MXX (LM78MXX) (KA78MXX)
KA78M24/I/R/RI Electrical Characteristics
(Refer to the test circuits, T
≤T ≤ +125°C, I =350mA, V =33V, unless otherwise specified, C = 0.33mF, C =0.1mF)
MIN
J
O
I
I
O
Parameter
Symbol
Conditions
Min.
23
Typ.
24
Max.
25
Units
Output Voltage
V
O
T =+25°C
J
V
I
= 5 to 350mA
22.8
24
25.2
O
V = 27 to 38V
I
Line Regulation
Load Regulation
Quiescent Current
∆V
I
= 200mA V = 27 to 38V
-
-
-
-
-
-
-
-
100
50
mV
mV
O
O
J
I
T =+25°C
V = 28 to 38V
I
-
∆V
I
I
= 5mA to 0.5A, T =+25°C
-
480
240
6
O
O
J
= 5mA to 200mA, T =+25°C
-
4.2
-
O
J
I
Q
T =+25°C
mA
mA
J
Quiescent Current Change
∆I
I
I
= 5mA to 350mA
= 200mA
0.5
0.8
Q
O
-
O
V = 27 to 38V
I
Output Voltage Drift
∆V/∆T
I
= 5mA
-
- 1.2
-
mV/°C
O
T = 0 to +125°C
J
Output Noise Voltage
Ripple Rejection
V
f = 10Hz to 100KHz
-
170
-
-
-
mV/V
O
N
RR
f = 120Hz, I = 300mA
50
dB
O
V = 28 to 38V
I
Dropout Voltage
Short Circuit Current
Peak Current
V
T =+25°C, I = 500mA
-
-
-
2
-
-
-
V
D
J
O
I
T = +25 °C, V = 35V
300
700
mA
mA
SC
J
I
I
T =+25°C
J
PK
NOTE:
1. T
:
MIN
KA78MXX/RI: T
= -40°C
= 0°C
MIN
KA78MXX/R: T
MIN
2. Load and line regulation are specified at constant, junction temperature. Change in V due to heating effects must be taken
O
into account separately. Pulse testing with low duty is used.
11
MC78MXX (LM78MXX) (KA78MXX)
Typical Applications
Figure 1. Fixed Output Regulator
Figure 2. Constant Current Regulator
Notes:
1. To specify an output voltage, substitute voltage value for "XX"
2. Although no output capacitor is needed for stability, it does improve transient response.
3. Required if regulator is located an appreciable distance from power Supply filter
Figure 3. Circuit for Increasing Output Voltage
12
MC78MXX (LM78MXX) (KA78MXX)
Figure 4. Adjustable Output Regulator (7 to 30V)
Figure 5. 0.5 to 10V Regulator
13
MC78MXX (LM78MXX) (KA78MXX)
Ordering Information
Device
MC78MXXCT (LM78XXCT) (KA78MXX)
KA78MXXI
Package
Operating Temperature
0 ~ + 125°C
TO-220
-40 ~ +125°C
MC78MXXCDT (KA78MXXR)
KA78MXXRI
D-PAK
0 ~ + 125°C
-40 ~ + 125°C
14
MC78MXX (LM78MXX) (KA78MXX)
Package Dimensions
15
MC78MXX (LM78MXX) (KA78MXX)
Package Dimensions (Continued)
16
MC78MXX (LM78MXX) (KA78MXX)
17
MC78MXX (LM78MXX) (KA78MXX)
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES
OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR
CORPORATION. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the body,
or (b) support or sustain life, and (c) whose failure to
perform when properly used in accordance with
instructions for use provided in the labeling, can be
reasonably expected to result in a significant injury of the
user.
2. A critical component in any component of a life support
device or system whose failure to perform can be
reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
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1999 Fairchild Semiconductor Corporation
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