MC78M05ACT [MOTOROLA]
THREE-TERMINAL MEDIUM CURRENT POSITIVE FIXED VOLTAGE REGULATORS; 三端中电流正固定电压稳压
| 型号： | MC78M05ACT |
| 厂家： | 
MOTOROLA |
| 描述： | THREE-TERMINAL MEDIUM CURRENT POSITIVE FIXED VOLTAGE REGULATORS |
| 文件： | 总12页 (文件大小：193K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Order this document by MC78M00/D
The MC78M00/MC78M00A Series positive voltage regulators are
identical to the popular MC7800 Series devices, except that they are
specified for only half the output current. Like the MC7800 devices, the
MC78M00 three–terminal regulators are intended for local, on–card voltage
regulation.
Internal current limiting, thermal shutdown circuitry and safe–area
compensation for the internal pass transistor combine to make these
devices remarkably rugged under most operating conditions. Maximum
output current, with adequate heatsinking is 500 mA.
THREE–TERMINAL MEDIUM
CURRENT POSITIVE FIXED
VOLTAGE REGULATORS
SEMICONDUCTOR
TECHNICAL DATA
• No External Components Required
• Internal Thermal Overload Protection
• Internal Short Circuit Current Limiting
• Output Transistor Safe–Area Compensation
T SUFFIX
PLASTIC PACKAGE
CASE 221A
(TO–220)
• MC78M00A High Accuracy (±2%) Available for 5.0 V, 8.0 V, 12 V
and 15 V
Heatsink surface
connected to Pin 2.
• Previous Commerical Temperature Range has been extended to a
Junction Temperature Range of –40°C to +125°C
1
2
3
Pin 1. Input
Representative Schematic Diagram
2. Ground
3. Output
Input
1.0 k
1.0 k
210
6.7
V
16 k
1
2
1
100
200
3
3
300
1.0 k
DT SUFFIX
PLASTIC PACKAGE
CASE 369A
DT–1 SUFFIX
PLASTIC PACKAGE
CASE 369
3.6
k
3.0 k
300
6.4
k
(DPAK)
(DPAK)
5.6 k
0.24
13
Heatsink surface (shown as terminal 4 in
case outline drawing) is connected to Pin 2.
50
200
Output
40
pF
6.0 k
2.0 k
3.9 k
6.0
k
2.8 k
ORDERING INFORMATION
Operating
Gnd
Temperature Range
Device
Package
This device contains 28 active transistors.
MC78MXXCDT
MC78MXXACDT*
MC78MXXCT
DPAK
DEVICE TYPE/NOMINAL OUTPUT VOLTAGE
T
= – 40° to +125°C
J
MC78M05AC
MC78M05C
MC78M06C
MC78M08AC
MC78M08C
5.0 V
5.0 V
6.0 V
8.0 V
8.0 V
MC78M09C
MC78M12AC
MC78M12C
MC78M15AC
MC78M15C
9.0 V
12 V
12 V
15 V
15 V
MC78M18C
MC78M20C
MC78M24C
18 V
20 V
24 V
TO–220
MC78MXXACT*
XX Indicates nominal voltage.
Available in 5.0, 8.0, 12 and 15 V devices.
*
Motorola, Inc. 1997
Rev 6
MC78M00 MC78M00A Series
MAXIMUM RATINGS (T = 25°C, unless otherwise noted.)
A
Rating
Symbol
Value
Unit
Input Voltage (5.0 V–18 V)
(20 V–24V)
V
I
35
40
Vdc
Power Dissipation (Package Limitation)
Plastic Package, T Suffix
T
A
= 25°C
P
D
Internally Limited
Thermal Resistance, Junction–to–Air
Thermal Resistance, Junction–to–Case
θ
θ
70
5.0
°C/W
°C/W
JA
JC
Plastic Package, DT Suffix
T
= 25°C
P
Internally Limited
A
D
JA
JC
Thermal Resistance, Junction–to–Air
Thermal Resistance, Junction–to–Case
θ
θ
92
5.0
°C/W
°C/W
Operating Junction Temperature Range
Storage Temperature Range
T
+150
°C
°C
J
T
stg
–65 to +150
NOTE: ESD data available upon request.
MC78M05C/AC ELECTRICAL CHARACTERISTICS (V = 10 V, I = 350 mA, –40°C < T < 125°C, P ≤ 5.0 W,
I
O
J
D
unless otherwise noted.)
Characteristics
Symbol
Min
Typ
Max
Unit
Output Voltage (T = 25°C)
V
O
Vdc
J
MC78M05C
MC78M05AC
4.8
4.9
5.0
5.0
5.2
5.1
Output Voltage Variation
V
O
Vdc
(7.0 Vdc ≤ V ≤ 20 Vdc, 5.0 mA ≤ I ≤ 350 mA)
I
O
MC78M05C
MC78M05AC
4.75
4.80
–
–
5.25
5.20
Line Regulation
(T = 25°C, 7.0 Vdc ≤ V ≤ 25 Vdc, I = 200 mA)
J
Reg
–
3.0
5.0
mV
mV
line
I
O
Load Regulation
Reg
load
(T = 25°C, 5.0 mA ≤ I ≤ 200 mA)
–
–
20
10
100
50
J
O
(T = 25°C, 5.0 mA ≤ I ≤ 500 mA)
J
O
Input Bias Current (T = 25°C)
I
–
3.2
6.0
mA
mA
J
IB
Quiescent Current Change
∆I
IB
(8.0 Vdc ≤ V ≤ 25 Vdc, I = 200 mA)
–
–
–
–
0.8
0.5
I
O
(5.0 mA ≤ I ≤ 350 mA)
O
Output Noise Voltage (T = 25°C, 10 Hz ≤ f ≤ 100 kHz)
V
n
–
40
–
µV
A
Ripple Rejection
RR
dB
(I = 100 mA, f = 120 Hz, 8.0 V ≤ V ≤ 18 V)
62
62
–
80
–
–
O
I
(I = 300 mA, f = 120 Hz, 8.0 ≤ V ≤ 18 V, T = 25°C)
O
I
J
Dropout Voltage
V –V
–
2.0
–
Vdc
I
O
(T = 25°C)
J
Short Circuit Current Limit (T = 25°C, V = 35 V)
I
–
–
50
–
–
mA
J
I
OS
∆V /∆T
Average Temperature Coefficient of Output Voltage
±0.2
mV/°C
O
(I = 5.0 mA)
O
Peak Output Current
I
O
–
700
–
mA
(T = 25°C)
J
2
MOTOROLA ANALOG IC DEVICE DATA
MC78M00 MC78M00A Series
MC78M06C ELECTRICAL CHARACTERISTICS (V = 11 V, I = 350 mA, –40°C < T < 125°C, P ≤ 5.0 W, unless otherwise noted.)
I
O
J
D
Characteristics
Symbol
Min
Typ
Max
Unit
Output Voltage (T = 25°C)
V
V
5.75
5.7
6.0
–
6.25
6.3
Vdc
Vdc
J
O
Output Voltage Variation
O
(8.0 Vdc ≤ V ≤ 21 Vdc, 5.0 mA ≤ I ≤ 350 mA)
I
O
Line Regulation
(T = 25°C, 8.0 Vdc ≤ V ≤ 25 Vdc, I = 200 mA)
J
Reg
–
5.0
50
mV
mV
line
I
O
Load Regulation
Reg
load
(T = 25°C, 5.0 mA ≤ I ≤ 500 mA)
–
–
20
10
120
60
J
O
(T = 25°C, 5.0 mA ≤ I ≤ 200 mA)
J
O
Input Bias Current (T = 25°C)
I
–
3.2
6.0
mA
mA
J
IB
Quiescent Current Change
∆I
IB
(9.0 Vdc ≤ V ≤ 25 Vdc, I = 200 mA)
–
–
–
–
0.8
0.5
I
O
(5.0 mA ≤ I ≤ 350 mA)
O
Output Noise Voltage (T = 25°C, 10 Hz ≤ f ≤ 100 kHz)
V
n
–
45
–
µV
A
Ripple Rejection
RR
dB
(I = 100 mA, f = 120 Hz, 9.0 V ≤ V ≤ 19 V)
59
59
–
80
–
–
O
I
(I = 300 mA, f = 120 Hz, 9.0 V ≤ V ≤ 19 V, T = 25°C)
O
I
J
Dropout Voltage
V – V
I
–
2.0
–
Vdc
O
(T = 25°C)
J
Short Circuit Current Limit (T = 25°C, V = 35 V)
I
–
–
50
–
–
mA
J
I
OS
∆V /∆T
Average Temperature Coefficient of Output Voltage
±0.2
mV/°C
O
(I = 5.0 mA)
O
Peak Output Current
I
O
–
700
–
mA
(T = 25°C)
J
MC78M08C/AC ELECTRICAL CHARACTERISTICS (V = 14 V, I = 350 mA, –40°C < T < 125°C, P ≤ 5.0 W,
I
O
J
D
unless otherwise noted.)
Characteristics
Symbol
Min
Typ
Max
Unit
Output Voltage (T = 25°C)
V
O
Vdc
J
MC78M08C
MC78M08AC
7.70
7.84
8.0
8.0
8.30
8.16
Output Voltage Variation
V
O
Vdc
(10.5 Vdc ≤ V ≤ 23 Vdc, 5.0 mA ≤ I ≤ 350 mA)
I
O
MC78M08C
7.6
7.7
–
–
8.4
8.3
MC78M08AC
Line Regulation
(T = 25°C, 10.5 Vdc ≤ V ≤ 25 Vdc, I = 200 mA)
J
Reg
–
6.0
50
mV
mV
line
I
O
Load Regulation
Reg
load
(T = 25°C, 5.0 mA ≤ I ≤ 500 mA)
–
–
25
10
160
80
J
O
(T = 25°C, 5.0 mA ≤ I ≤ 200 mA)
J
O
Input Bias Current (T = 25°C)
I
–
3.2
6.0
mA
mA
J
IB
Quiescent Current Change
∆I
IB
(10.5 Vdc ≤ V ≤ 25 Vdc, I = 200 mA)
–
–
–
–
0.8
0.5
I
O
(5.0 mA ≤ I ≤ 350 mA)
O
Output Noise Voltage (T = 25°C, 10 Hz ≤ f ≤ 100 kHz)
V
n
–
52
–
µV
A
Ripple Rejection
RR
dB
(I = 100 mA, f = 120 Hz, 11.5 V ≤V ≤ 21.5 V)
56
56
–
80
–
–
O
I
(I = 300 mA, f = 120 Hz, 11.5 V ≤V ≤ 21.5 V, T = 25°C)
O
I
J
Dropout Voltage
V –V
–
2.0
–
Vdc
I
O
(T = 25°C)
J
Short Circuit Current Limit (T = 25°C, V = 35 V)
I
–
–
50
–
–
mA
J
I
OS
∆V /∆T
Average Temperature Coefficient of Output Voltage
±0.2
mV/°C
O
(I = 5.0 mA)
O
Peak Output Current
I
O
–
700
–
mA
(T = 25°C)
J
3
MOTOROLA ANALOG IC DEVICE DATA
MC78M00 MC78M00A Series
MC78M09C ELECTRICAL CHARACTERISTICS (V = 15 V, I = 350 mA, –40°C < T < 125°C, P ≤ 5.0 W, unless otherwise noted.)
I
O
J
D
Characteristics
Symbol
Min
Typ
Max
Unit
Output Voltage (T = 25°C)
V
V
8.64
8.55
9.0
–
9.45
9.45
Vdc
Vdc
J
O
Output Voltage Variation
O
(11.5 Vdc ≤ V ≤ 23 Vdc, 5.0 mA ≤ I ≤ 350 mA)
I
O
Line Regulation
(T = 25°C, 11.5 Vdc ≤ V ≤ 25 Vdc, I = 200 mA)
J
Reg
–
6.0
50
mV
mV
line
I
O
Load Regulation
Reg
load
(T = 25°C, 5.0 mA ≤ I ≤ 500 mA)
–
–
25
10
180
90
J
O
(T = 25°C, 5.0 mA ≤ I ≤ 200 mA)
J
O
Input Bias Current (T = 25°C)
I
–
3.2
6.0
mA
mA
J
IB
Quiescent Current Change
∆I
IB
(11.5 Vdc ≤ V ≤ 25 Vdc, I = 200 mA)
–
–
–
–
0.8
0.5
I
O
(5.0 mA ≤ I ≤ 350 mA)
O
Output Noise Voltage (T = 25°C, 10 Hz ≤ f ≤ 100 kHz)
V
n
–
52
–
µV
A
Ripple Rejection
RR
dB
(I = 100 mA, f = 120 Hz, 12.5 V ≤V ≤ 22.5 V)
56
56
–
80
–
–
O
I
(I = 300 mA, f = 120 Hz, 12.5 V ≤V ≤ 22.5 V, T = 25°C)
O
I
J
Dropout Voltage
V –V
–
2.0
–
Vdc
I
O
(T = 25°C)
J
Short Circuit Current Limit (T = 25°C, V = 35 V)
I
–
–
50
–
–
mA
J
I
OS
∆V /∆T
Average Temperature Coefficient of Output Voltage
±0.2
mV/°C
O
(I = 5.0 mA)
O
Peak Output Current
I
O
–
700
–
mA
(T = 25°C)
J
MC78M12C/AC ELECTRICAL CHARACTERISTICS (V = 19 V, I = 350 mA, –40°C < T < 125°C, P ≤ 5.0 W,
I
O
J
D
unless otherwise noted.)
Characteristics
Symbol
Min
Typ
Max
Unit
Output Voltage (T = 25°C)
V
O
Vdc
J
MC78M12C
MC78M12AC
11.50
11.76
12
12
12.50
12.24
Output Voltage Variation
V
O
Vdc
(14.5 Vdc ≤ V ≤ 27 Vdc, 5.0 mA ≤ I ≤ 350 mA)
I
O
MC78M12C
11.4
11.5
–
–
12.6
12.5
MC78M12AC
Line Regulation
(T = 25°C, 14.5 Vdc ≤ V ≤ 30 Vdc, I = 200 mA)
J
Reg
–
8.0
50
mV
mV
line
I
O
Load Regulation
Reg
load
(T = 25°C, 5.0 mA ≤ I ≤ 500 mA)
–
–
25
10
240
120
J
O
(T = 25°C, 5.0 mA ≤ I ≤ 200 mA)
J
O
Input Bias Current (T = 25°C)
I
–
3.2
6.0
mA
mA
J
IB
Quiescent Current Change
∆I
IB
(14.5 Vdc ≤ V ≤ 30 Vdc, I = 200 mA)
–
–
–
–
0.8
0.5
I
O
(5.0 mA ≤ I ≤ 350 mA)
O
Output Noise Voltage (T = 25°C, 10 Hz ≤ f ≤ 100 kHz)
V
n
–
75
–
µV
A
Ripple Rejection
RR
dB
(I = 100 mA, f = 120 Hz, 15 V ≤V ≤ 25 V)
55
55
–
80
–
–
O
I
(I = 300 mA, f = 120 Hz, 15 V ≤V ≤ 25 V, T = 25°C)
O
I
J
Dropout Voltage
V –V
–
2.0
–
Vdc
I
O
(T = 25°C)
J
Short Circuit Current Limit (T = 25°C, V = 35 V)
I
–
–
50
–
–
mA
J
I
OS
Average Temperature Coefficient of Output Voltage
∆V /∆T
±0.3
mV/°C
O
(I = 5.0 mA)
O
Peak Output Current
I
O
–
700
–
mA
(T = 25°C)
J
4
MOTOROLA ANALOG IC DEVICE DATA
MC78M00 MC78M00A Series
MC78M15C/AC ELECTRICAL CHARACTERISTICS (V = 23 V, I = 350 mA, –40°C < T < 125°C, P ≤ 5.0 W,
I
O
J
D
unless otherwise noted.)
Characteristics
Symbol
Min
Typ
Max
Unit
Output Voltage (T = 25°C)
V
O
Vdc
J
MC78M15C
MC78M15AC
14.4
14.7
15
15
15.6
15.3
Output Voltage Variation
V
O
Vdc
(17.5 Vdc ≤ V ≤ 30 Vdc, 5.0 mA ≤ I ≤ 350 mA)
I
O
MC78M15C
14.25
14.40
–
–
15.75
15.60
MC78M15AC
Input Regulation
(T = 25°C, 17.5 Vdc ≤ V ≤ 30 Vdc, I = 200 mA)
J
Load Regulation
Reg
–
10
50
mV
mV
line
I
O
Reg
load
(T = 25°C, 5.0 mA ≤ I ≤ 500 mA)
–
–
25
10
300
150
J
O
(T = 25°C, 5.0 mA ≤ I ≤ 200 mA)
J
O
Input Bias Current (T = 25°C)
I
–
3.2
6.0
mA
mA
J
IB
Quiescent Current Change
∆I
IB
(17.5 Vdc ≤ V ≤ 30 Vdc, I = 200 mA)
–
–
–
–
0.8
0.5
I
O
(5.0 mA ≤ I ≤ 350 mA)
O
Output Noise Voltage (T = 25°C, 10 Hz ≤ f ≤ 100 kHz)
V
n
–
90
–
µV
A
Ripple Rejection
RR
dB
(I = 100 mA, f = 120 Hz, 18.5 V ≤ V ≤ 28.5 V)
54
54
–
70
–
–
O
I
(I = 300 mA, f = 120 Hz, 18.5 V ≤ V ≤ 28.5 V, T = 25°C)
O
I
J
Dropout Voltage
V –V
–
2.0
–
Vdc
I
O
(T = 25°C)
J
Short Circuit Current Limit (T = 25°C, V = 35 V)
I
–
–
50
–
–
mA
J
I
OS
∆V /∆T
Average Temperature Coefficient of Output Voltage
±0.3
mV/°C
O
(I = 5.0 mA)
O
Peak Output Current
I
O
–
700
–
mA
(T = 25°C)
J
MC78M18C ELECTRICAL CHARACTERISTICS (V = 27 V, I = 350 mA, –40°C < T < 125°C, P ≤ 5.0 W, unless otherwise noted.)
I
O
J
D
Characteristics
Symbol
Min
Typ
Max
Unit
Output Voltage (T = 25°C)
V
O
V
O
17.3
17.1
18
–
18.7
18.9
Vdc
Vdc
J
Output Voltage Variation
(21 Vdc ≤ V ≤ 33 Vdc, 5.0 mA ≤ I ≤ 350 mA)
I
O
Line Regulation
(T = 25°C, 21 Vdc ≤ V ≤ 33 Vdc, I = 200 mA)
J
Load Regulation
Reg
–
10
50
mV
mV
line
I
O
Reg
load
(T = 25°C, 5.0 mA ≤ I ≤ 500 mA)
–
–
30
10
360
180
J
O
(T = 25°C, 5.0 mA ≤ I ≤ 200 mA)
J
O
Input Bias Current (T = 25°C)
I
–
3.2
6.5
mA
mA
J
IB
Quiescent Current Change
∆I
IB
(21 Vdc ≤ V ≤ 33 Vdc, I = 200 mA)
–
–
–
–
0.8
0.5
I
O
(5.0 mA ≤ I ≤ 350 mA)
O
Output Noise Voltage (T = 25°C, 10 Hz ≤ f ≤ 100 kHz)
V
n
–
100
–
µV
A
Ripple Rejection
RR
dB
(I = 100 mA, f = 120 Hz, 22 V ≤ V ≤ 32 V)
53
53
–
70
–
–
O
I
(I = 300 mA, f = 120 Hz, 22 V ≤ V ≤ 32 V, T = 25°C)
O
I
J
Dropout Voltage
V –V
–
2.0
–
Vdc
I
O
(T = 25°C)
J
Short Circuit Current Limit (T = 25°C, V = 35 V)
I
–
–
50
–
–
mA
J
I
OS
∆V /∆T
Average Temperature Coefficient of Output Voltage
±0.3
mV/°C
O
(I = 5.0 mA)
O
Peak Output Current
I
O
–
700
–
mA
(T = 25°C)
J
5
MOTOROLA ANALOG IC DEVICE DATA
MC78M00 MC78M00A Series
MC78M20C ELECTRICAL CHARACTERISTICS (V = 29 V, I = 350 mA, –30°C < T < 125°C, P ≤ 5.0 W, unless otherwise noted.)
I
O
J
D
Characteristics
Symbol
Min
Typ
Max
Unit
Output Voltage (T = 25°C)
V
V
19.2
19
20
–
20.8
21
Vdc
Vdc
J
O
Output Voltage Variation
O
(23 Vdc ≤ V ≤ 35 Vdc, 5.0 mA ≤ I ≤ 350 mA)
I
O
Line Regulation
(T = 25°C, 23 Vdc ≤ V ≤ 35 Vdc, I = 200 mA)
J
Reg
–
10
50
mV
mV
line
I
O
Load Regulation
Reg
load
(T = 25°C, 5.0 mA ≤ I ≤ 500 mA)
–
–
30
10
400
200
J
O
(T = 25°C, 5.0 mA ≤ I ≤ 200 mA)
J
O
Input Bias Current (T = 25°C)
I
–
3.2
6.5
mA
mA
J
IB
Quiescent Current Change
∆I
IB
(23 Vdc ≤ V ≤ 35 Vdc, I = 200 mA)
–
–
–
–
0.8
0.5
I
O
(5.0 mA ≤ I ≤ 350 mA)
O
Output Noise Voltage (T = 25°C, 10 Hz ≤ f ≤ 100 kHz)
V
n
–
110
–
µV
A
Ripple Rejection
RR
dB
(I = 100 mA, f = 120 Hz, 24 V ≤ V ≤ 34 V)
52
52
–
70
–
–
O
I
(I = 300 mA, f = 120 Hz, 24 V ≤ V ≤ 34 V, T = 25°C)
O
I
J
Dropout Voltage
V –V
–
2.0
–
Vdc
I
O
(T = 25°C)
J
Short Circuit Current Limit (T = 25°C, V = 35 V)
I
–
–
50
–
–
mA
J
I
OS
∆V /∆T
Average Temperature Coefficient of Output Voltage
±0.5
mV/°C
O
(I = 5.0 mA)
O
Peak Output Current
I
O
–
700
–
mA
(T = 25°C)
J
MC78M24C ELECTRICAL CHARACTERISTICS (V = 33 V, I = 350 mA, –40°C < T < 125°C, P ≤ 5.0 W, unless otherwise noted.)
I
O
J
D
Characteristics
Symbol
Min
Typ
Max
Unit
Output Voltage (T = 25°C)
V
V
23
24
–
25
Vdc
Vdc
J
O
Output Voltage Variation
22.8
25.2
O
(27 Vdc ≤ V ≤ 38 Vdc, 5.0 mA ≤ I ≤ 350 mA)
I
O
Line Regulation
(T = 25°C, 27 Vdc ≤ V ≤ 38 Vdc, I = 200 mA)
J
Reg
–
10
50
mV
mV
line
I
O
Load Regulation
Reg
load
(T = 25°C, 5.0 mA ≤ I ≤ 500 mA)
–
–
30
10
480
240
J
O
(T = 25°C, 5.0 mA ≤ I ≤ 200 mA)
J
O
Input Bias Current (T = 25°C)
I
–
3.2
7.0
mA
mA
J
IB
Quiescent Current Change
∆I
IB
(27 Vdc ≤ V ≤ 38 Vdc, I = 200 mA)
–
–
–
–
0.8
0.5
I
O
(5.0 mA ≤ I ≤ 350 mA)
O
Output Noise Voltage (T = 25°C, 10 Hz ≤ f ≤ 100 kHz)
V
n
–
170
–
µV
A
Ripple Rejection
RR
dB
(I = 100 mA, f = 120 Hz, 28 V ≤ V ≤ 38 V)
50
50
–
70
–
–
O
I
(I = 300 mA, f = 120 Hz, 28 V ≤ V ≤ 38 V, T = 25°C)
O
I
J
Dropout Voltage
V –V
–
2.0
–
Vdc
I
O
(T = 25°C)
J
Short Circuit Current Limit (T = 25°C)
I
–
–
50
–
–
mA
J
OS
∆V /∆T
Average Temperature Coefficient of Output Voltage
±0.5
mV/°C
O
(I = 5.0 mA)
O
Peak Output Current
I
O
–
700
–
mA
(T = 25°C)
J
6
MOTOROLA ANALOG IC DEVICE DATA
MC78M00 MC78M00A Series
DEFINITIONS
Line Regulation – The change in output voltage for a
Input Bias Current – That part of the input current that is
change in the input voltage. The measurement is made under
conditions of low dissipation or by using pulse techniques
such that the average chip temperature is not significantly
affected.
not delivered to the load.
Output Noise Voltage – The rms AC voltage at the
output, with constant load and no input ripple, measured over
a specified frequency range.
Load Regulation – The change in output voltage for a
change in load current at constant chip temperature.
Long Term Stability – Output voltage stability under
accelerated life test conditions with the maximum rated
voltage listed in the devices’ electrical characteristics and
maximum power dissipation.
Maximum Power Dissipation – The maximum total
device dissipation for which the regulator will operate within
specifications.
Figure 1. DPAK Thermal Resistance and Maximum
Power Dissipation versus P.C.B. Copper Length
2.4
2.0
1.6
1.2
0.8
0.4
0
100
P
for T = 50
A
°
C
D(max)
Free Air
Mounted
Vertically
90
2.0 oz. Copper
L
80
70
60
50
40
Minimum
Size Pad
L
R
θ
JA
0
5.0
10
15
20
25
30
L, LENGTH OF COPPER (mm)
Figure 2. Worst Case Power Dissipation
versus Ambient Temperature (TO–220)
10
Infinite Heat
Sink
θ
= 10°C/W
HS
5.0
θ
= 20°C/W
3.0
2.0
HS
No Heat Sink
1.0
0.5
0.3
0.2
θ
P
= 5°C/W
JC
= 7.52 W
D(max)
0.1
25
50
75
100
125
150
T , AMBIENT TEMPERATURE (°C)
A
7
MOTOROLA ANALOG IC DEVICE DATA
MC78M00 MC78M00A Series
Figure 3. Peak Output Current versus
Dropout Voltage
Figure 4. Dropout Voltage versus
Junction Temperature
2.5
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
2.0
1.5
1.0
0.5
T
= 25°C
J
I
= 500 mA
O
I
I
= 100 mA
= 10 mA
O
T
= 125°C
J
O
∆
V
= 100 mV
50
O
0
0
5.0
10
15
20
25
30
35
40
0
25
75
100
125
150
V – V , DROPOUT VOLTAGE (V)
T , JUNCTION TEMPERATURE (°C)
I
O
J
Figure 5. Ripple Rejection versus Frequency
Figure 6. Ripple Rejection versus Output Current
100
100
80
I
= 500 mA
out
80
60
I
V
V
C
T
= 500 mA
out
out
in
60
40
20
= 5.0 V
= 10 V
= 0
out
= 5.0 V
= 10 V
= 0
O
O
J
= 25°C
°C
40
30
1.0
10
100
1.0 k
10 k
100 k 1.0 M
10 M 100 M
0.01
0.1
0.5 1.0
10
f, FREQUENCY (Hz)
I
, OUTPUT CURRENT (A)
O
Figure 7. Bias Current versus Input Voltage
Figure 8. Bias Current versus Output Current
5.0
4.0
4.0
T
= 25°C
J
T
= 25°C
J
3.0
2.0
3.0
2.0
1.0
0
T
= 125°C
J
T
= 125°C
J
T
= 25°C
J
V
= 5.0 V
= 0.5 A
O
1.0
0
I
O
V –V = 5.0 V
I
O
T
= 125°C
J
0
5.0
10
15
20
25
30
35
40
0.01
0.1
0.5
1.0
10
V , INPUT VOLTAGE (Vdc)
I
, OUTPUT CURRENT (A)
I
O
8
MOTOROLA ANALOG IC DEVICE DATA
MC78M00 MC78M00A Series
APPLICATIONS INFORMATION
Design Considerations
The MC78M00/MC78M00A Series of fixed voltage
regulators are designed with Thermal Overload Protection
that shuts down the circuit when subjected to an excessive
power overload condition, Internal Short Circuit Protection
that limits the maximum current the circuit will pass, and
Output Transistor Safe–Area Compensation that reduces the
output short circuit current as the voltage across the pass
transistor is increased.
In many low current applications, compensation
capacitors are not required. However, it is recommended that
the regulator input be bypassed with a capacitor if the
regulator is connected to the power supply filter with long wire
lengths, or if the output load capacitance is large. An input
bypass capacitor should be selected to provide good high
frequency characteristics to insure stable operation under all
load conditions. A 0.33 µF or larger tantalum, mylar, or other
capacitor having low internal impedance at high frequencies
should be chosen. The bypass capacitor should be mounted
with the shortest possible leads directly across the
regulator’s input terminals. Normally good construction
techniques should be used to minimize ground loops and
lead resistance drops since the regulator has no external
sense lead.
Figure 9. Current Regulator
Figure 10. Adjustable Output Regulator
V
V
, 7.0 V to 20 V
O
MC78M05C
Input
0.33
–V
≥
2.0 V
in out
R
µF
Constant
Current to
Grounded
Load
Output
MC78M05C
Input
I
O
7
4
2
3
The MC78M00 regulators can also be used as a current source
when connected as above. In order to minimize dissipation the
MC78M05Cis chosen in this application. ResistorRdetermines
the current as follows:
0.33
µ
F
0.1 µF
6
10 k
+
1.0 k
MC1741
5.0 V
I
=
+ I
IB
O
R
I
= 1.5 mA over line and load changes.
IB
Theadditionofanoperationalamplifierallowsadjustmenttohigher
or intermediate values while retaining regulation characteristics.
The minimum voltage obtainable with this arrangement is 2.0 V
greater than the regulator voltage.
For example, a 500 mA current source would require R to be a
5.0 , 10 W resistor and the output voltage compliance would
be the input voltage less 7.0 V.
Ω
Figure 12. Current Boost with
Short Circuit Protection
Figure 11. Current Boost Regulator
MJ2955 or Equiv.
MJ2955
or Equiv.
Input
R
Input
SC
R
MC78MXXC
Output
2N6049
or Equiv.
R
1.0
µF
1.0 µF
MC78MXXC
Output
1.0 µF
XX = 2 digits of type number indicating voltage.
XX = 2 digits of type number indicating voltage.
The MC78M00 series can be current boosted with a PNP
transistor. The MJ2955 provides current to 5.0 A. Resistor R in
The circuit of Figure NO TAG can be modified to provide supply
protection against short circuits by adding a short circuit sense
conjunctionwith the V
transistor begins conducting; this circuit is not short circuit
proof. Input–output differential voltage minimum is increased
of the PNP determines when the pass
BE
resistor, R , andanadditionalPNPtransistor. Thecurrentsensing
sc
PNP must be able to handle the short circuit current of the
three–terminalregulator.Therefore, a4.0Aplasticpowertransistor
is specified.
by V
of the pass transistor.
BE
9
MOTOROLA ANALOG IC DEVICE DATA
MC78M00 MC78M00A Series
OUTLINE DIMENSIONS
T SUFFIX
PLASTIC PACKAGE
CASE 221A–06
(TO–220)
ISSUE Y
NOTES:
SEATING
PLANE
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
–T–
2. CONTROLLING DIMENSION: INCH.
3. DIMENSION Z DEFINES A ZONE WHERE ALL
BODY AND LEAD IRREGULARITIES ARE
ALLOWED.
C
B
F
T
S
4
INCHES
MIN
MILLIMETERS
DIM
A
B
C
D
F
G
H
J
K
L
N
Q
R
S
MAX
0.620
0.405
0.190
0.035
0.147
0.105
0.155
0.025
0.562
0.060
0.210
0.120
0.110
0.055
0.255
0.050
–––
MIN
14.48
9.66
4.07
0.64
3.61
2.42
2.80
0.46
12.70
1.15
4.83
2.54
2.04
1.15
5.97
0.00
1.15
–––
MAX
15.75
10.28
4.82
0.88
3.73
2.66
3.93
0.64
14.27
1.52
5.33
3.04
2.79
1.39
6.47
1.27
–––
A
K
Q
Z
0.570
0.380
0.160
0.025
0.142
0.095
0.110
0.018
0.500
0.045
0.190
0.100
0.080
0.045
0.235
0.000
0.045
–––
1
2
3
U
H
L
R
V
J
G
T
U
V
D
N
Z
0.080
2.04
DT SUFFIX
PLASTIC PACKAGE
CASE 369A–13
(DPAK)
ISSUE Y
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
SEATING
PLANE
–T–
2. CONTROLLING DIMENSION: INCH.
C
B
INCHES
MILLIMETERS
E
V
R
DIM
A
B
C
D
E
MIN
MAX
0.250
0.265
0.094
0.035
0.040
0.047
MIN
5.97
6.35
2.19
0.69
0.84
0.94
MAX
6.35
6.73
2.38
0.88
1.01
1.19
0.235
0.250
0.086
0.027
0.033
0.037
4
Z
A
K
S
F
1
2
3
G
H
J
K
L
R
S
U
V
0.180 BSC
4.58 BSC
U
0.034
0.018
0.102
0.040
0.023
0.114
0.87
0.46
2.60
1.01
0.58
2.89
0.090 BSC
2.29 BSC
F
J
0.175
0.020
0.020
0.030
0.138
0.215
0.050
–––
0.050
–––
4.45
0.51
0.51
0.77
3.51
5.46
1.27
–––
1.27
–––
L
H
D 2 PL
Z
M
G
0.13 (0.005)
T
10
MOTOROLA ANALOG IC DEVICE DATA
MC78M00 MC78M00A Series
OUTLINE DIMENSIONS
DT–1 SUFFIX
PLASTIC PACKAGE
CASE 369–07
(DPAK)
ISSUE L
C
B
R
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
V
E
INCHES
MILLIMETERS
4
2
DIM
A
B
C
D
E
MIN
MAX
0.250
0.265
0.094
0.035
0.040
0.047
MIN
5.97
6.35
2.19
0.69
0.84
0.94
MAX
6.35
6.73
2.38
0.88
1.01
1.19
0.235
0.250
0.086
0.027
0.033
0.037
A
K
1
3
S
F
–T–
SEATING
PLANE
0.090 BSC
2.29 BSC
G
H
J
K
R
S
0.034
0.018
0.350
0.175
0.050
0.030
0.040
0.023
0.380
0.215
0.090
0.050
0.87
0.46
8.89
4.45
1.27
0.77
1.01
0.58
9.65
5.46
2.28
1.27
J
F
V
H
D 3 PL
0.13 (0.005)
G
M
T
11
MOTOROLA ANALOG IC DEVICE DATA
MC78M00 MC78M00A Series
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding
the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and
specificallydisclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters which may be provided in Motorola
datasheetsand/orspecificationscananddovaryindifferentapplicationsandactualperformancemayvaryovertime. Alloperatingparameters,including“Typicals”
must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of
others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other
applicationsintended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury
ordeathmayoccur. ShouldBuyerpurchaseoruseMotorolaproductsforanysuchunintendedorunauthorizedapplication,BuyershallindemnifyandholdMotorola
and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees
arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that
Motorola was negligent regarding the design or manufacture of the part. Motorola and
Opportunity/Affirmative Action Employer.
are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal
Mfax is a trademark of Motorola, Inc.
How to reach us:
USA/EUROPE/Locations Not Listed: Motorola Literature Distribution;
JAPAN: Nippon Motorola Ltd.: SPD, Strategic Planning Office, 4–32–1,
P.O. Box 5405, Denver, Colorado 80217. 1–303–675–2140 or 1–800–441–2447 Nishi–Gotanda, Shinagawa–ku, Tokyo 141, Japan. 81–3–5487–8488
Customer Focus Center: 1–800–521–6274
Mfax : RMFAX0@email.sps.mot.com – TOUCHTONE 1–602–244–6609
ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park,
Motorola Fax Back System
– US & Canada ONLY 1–800–774–1848 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298
– http://sps.motorola.com/mfax/
HOME PAGE: http://motorola.com/sps/
MC78M00/D
◊
相关型号：
SI9130DB
5- and 3.3-V Step-Down Synchronous ConvertersWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9135LG-T1
SMBus Multi-Output Power-Supply ControllerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9135LG-T1-E3
SMBus Multi-Output Power-Supply ControllerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9135_11
SMBus Multi-Output Power-Supply ControllerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9136_11
Multi-Output Power-Supply ControllerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9130CG-T1-E3
Pin-Programmable Dual Controller - Portable PCsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9130LG-T1-E3
Pin-Programmable Dual Controller - Portable PCsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9130_11
Pin-Programmable Dual Controller - Portable PCsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9137
Multi-Output, Sequence Selectable Power-Supply Controller for Mobile ApplicationsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9137DB
Multi-Output, Sequence Selectable Power-Supply Controller for Mobile ApplicationsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9137LG
Multi-Output, Sequence Selectable Power-Supply Controller for Mobile ApplicationsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9122E
500-kHz Half-Bridge DC/DC Controller with Integrated Secondary Synchronous Rectification DriversWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
©2020 ICPDF网 联系我们和版权申明