MC78M15ACDTG/RKG [ONSEMI]
15V FIXED POSITIVE REGULATOR, PSSO2, LEAD FREE, DPAK-3;
| 型号： | MC78M15ACDTG/RKG |
| 厂家： | 
ONSEMI |
| 描述： | 15V FIXED POSITIVE REGULATOR, PSSO2, LEAD FREE, DPAK-3 |
| 文件： | 总11页 (文件大小：232K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MC78M00, MC78M00A
Series
500 mA Positive Voltage
Regulators
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.
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MARKING
DIAGRAMS
TO−220−3
T SUFFIX
CASE 221A
MC
78MxxXXT
AWLYWW
Heatsink surface
connected to Pin 2.
Features
1
• No External Components Required
• Internal Thermal Overload Protection
• Internal Short Circuit Current Limiting
• Output Transistor Safe−Area Compensation
• MC78M00A High Accuracy (±2%) Available for 5.0 V, 8.0 V, 12 V
and 15 V
2
3
xx = Voltage Option
XX = Appropriate Suffix Options
= Assembly Location
WL = Wafer Lot
= Year
A
Y
WW = Work Week
• Pb−Free Packages are Available
4
xxxxx
ALYWW
Input
DPAK−3
DT SUFFIX
CASE 369C
1.0 k
1.0 k
210
2
1
3
6.7
V
16 k
100
200
Heatsink surface (shown as terminal 4 in
case outline drawing) is connected to Pin 2.
300
1.0 k
3.0 k
3.6
k
xxxxx = Device Type and Voltage Option Code
300
6.4
k
A
L
Y
= Assembly Location
= Wafer Lot
= Year
5.6 k
0.24
13
WW = Work Week
50
200
Output
40
pF
Pin 1. Input
6.0 k
2. Ground
3. Output
2.0 k
3.9 k
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 402 of this data sheet.
6.0
k
2.8 k
GND
This device contains 28 active transistors.
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 402 of this data sheet.
Figure 1. Representative Schematic Diagram
©
Semiconductor Components Industries, LLC, 2004
393
Publication Order Number:
June, 2004 − Rev. 14
MC78M00/D
MC78M00, MC78M00A Series
MAXIMUM RATINGS (T = 25°C, unless otherwise noted) (Note 1)
A
Rating
Symbol
Value
35
Unit
Input Voltage (5.0 V−18 V)
(20 V−24V)
V
Vdc
I
40
Power Dissipation (Package Limitation)
Plastic Package, T Suffix
T = 25°C
P
Internally Limited
A
D
JA
JC
Thermal Resistance, Junction−to−Air
Thermal Resistance, Junction−to−Case
Plastic Package, DT Suffix
ꢀ
ꢀ
70
°C/W
°C/W
5.0
T = 25°C
P
Internally Limited
A
D
JA
JC
Thermal Resistance, Junction−to−Air
Thermal Resistance, Junction−to−Case
Operating Junction Temperature Range
Storage Temperature Range
ꢀ
ꢀ
92
5.0
°C/W
°C/W
°C
T
+150
J
T
stg
−65 to +150
°C
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit
values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied,
damage may occur and reliability may be affected.
1. 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.
MC78M05C/AC/B/AB ELECTRICAL CHARACTERISTICS (V = 10 V, I = 350 mA, T = T to T , P ≤ 5.0 W,
I
O
J
low
high
D
unless otherwise noted) (Note 2)
Characteristics
Symbol
Min
Typ
Max
Unit
Output Voltage (T = 25°C)
V
Vdc
J
O
MC78M05C
MC78M05AC
4.8
4.9
5.0
5.0
5.2
5.1
Output Voltage Variation
V
Vdc
O
(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
50
mV
mV
line
I
O
Load Regulation
Reg
load
(T = 25°C, 5.0 mA ≤ I ≤ 500 mA)
−
−
20
10
100
50
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
(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
−
40
−
ꢂV
A
n
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
OS
−
−
50
−
−
mA
J
I
Average Temperature Coefficient of Output Voltage
ꢁV /ꢁT
±0.2
mV/°C
O
(I = 5.0 mA)
O
Peak Output Current
I
−
700
−
mA
O
(T = 25°C)
J
2. T = 0°C for MC78MxxAC, C
T
= +125°C for MC78MxxAB, AC, B, C
high
low
= −40°C for MC78MxxAB, B
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394
MC78M00, MC78M00A Series
MC78M06C ELECTRICAL CHARACTERISTICS (V = 11 V, I = 350 mA, 0°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
O
Output Voltage Variation
−
(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)
Quiescent Current Change
I
−
3.2
6.0
mA
mA
J
IB
ꢁ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
−
45
−
ꢂV
A
n
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
2.0
Vdc
I
O
(T = 25°C)
J
Short Circuit Current Limit (T = 25°C, V = 35 V)
I
OS
−
−
50
−
−
mA
J
I
Average Temperature Coefficient of Output Voltage
ꢁV /ꢁT
±0.2
mV/°C
O
(I = 5.0 mA)
O
Peak Output Current
I
−
700
−
mA
O
(T = 25°C)
J
MC78M08C/AC/B/AB ELECTRICAL CHARACTERISTICS (V = 14 V, I = 350 mA, T = T to T , P ≤ 5.0 W,
I
O
J
low
high
D
unless otherwise noted) (Note 3)
Characteristics
Symbol
Min
Typ
Max
Unit
Output Voltage (T = 25°C)
V
Vdc
J
O
MC78M08C
MC78M08AC
7.70
7.84
8.0
8.0
8.30
8.16
Output Voltage Variation
V
Vdc
O
(10.5 Vdc ≤ V ≤ 23 Vdc, 5.0 mA ≤ I ≤ 350 mA)
I
O
MC78M08C
MC78M08AC
Line Regulation
7.6
7.7
−
−
−
6.0
8.4
8.3
50
Reg
mV
mV
line
(T = 25°C, 10.5 Vdc ≤ V ≤ 25 Vdc, I = 200 mA)
J
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
−
52
−
ꢂV
A
n
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
OS
−
−
50
−
−
mA
J
I
Average Temperature Coefficient of Output Voltage
ꢁV /ꢁT
±0.2
mV/°C
O
(I = 5.0 mA)
O
Peak Output Current
I
−
700
−
mA
O
(T = 25°C)
J
3. T = 0°C for MC78MxxAC, C
T
= +125°C for MC78MxxAB, AC, B, C
high
low
= −40°C for MC78MxxAB, B
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395
MC78M00, MC78M00A Series
MC78M09C/B ELECTRICAL CHARACTERISTICS (V = 15 V, I = 350 mA, T = T to T , P ≤ 5.0 W, unless otherwise
I
O
J
low
high
D
noted) (Note 4)
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
O
Output Voltage Variation
−
(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)
Quiescent Current Change
I
−
3.2
6.0
mA
mA
J
IB
ꢁ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
−
52
−
ꢂV
A
n
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
OS
−
−
50
−
−
mA
J
I
Average Temperature Coefficient of Output Voltage
ꢁV /ꢁT
±0.2
mV/°C
O
(I = 5.0 mA)
O
Peak Output Current
I
−
700
−
mA
O
(T = 25°C)
J
MC78M12C/AC/B/AB ELECTRICAL CHARACTERISTICS (V = 19 V, I = 350 mA, T = T to T , P ≤ 5.0 W,
I
O
J
low
high
D
unless otherwise noted) (Note 4)
Characteristics
Symbol
Min
Typ
Max
Unit
Output Voltage (T = 25°C)
V
Vdc
J
O
MC78M12C
MC78M12AC
11.50
11.76
12
12
12.50
12.24
Output Voltage Variation
V
Vdc
O
(14.5 Vdc ≤ V ≤ 27 Vdc, 5.0 mA ≤ I ≤ 350 mA)
I
O
MC78M12C
MC78M12AC
11.4
11.5
−
−
12.6
12.5
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
75
ꢂV
A
n
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
OS
−
−
50
−
−
mA
J
I
Average Temperature Coefficient of Output Voltage
ꢁV /ꢁT
±0.3
mV/°C
O
(I = 5.0 mA)
O
Peak Output Current
I
−
700
−
mA
O
(T = 25°C)
J
4. T = 0°C for MC78MxxAC, C
T
= +125°C for MC78MxxAB, AC, B, C
high
low
= −40°C for MC78MxxAB, B
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396
MC78M00, MC78M00A Series
MC78M15C/AC/B/AB ELECTRICAL CHARACTERISTICS (V = 23 V, I = 350 mA, T = T to T , P ≤ 5.0 W,
I
O
J
low
high
D
unless otherwise noted) (Note 5)
Characteristics
Symbol
Min
Typ
Max
Unit
Output Voltage (T = 25°C)
V
Vdc
J
O
MC78M15C
MC78M15AC
14.4
14.7
15
15
15.6
15.3
Output Voltage Variation
V
Vdc
O
(17.5 Vdc ≤ V ≤ 30 Vdc, 5.0 mA ≤ I ≤ 350 mA)
I
O
MC78M15C
MC78M15AC
14.25
14.40
−
−
15.75
15.60
Input Regulation
(T = 25°C, 17.5 Vdc ≤ V ≤ 30 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)
−
−
25
10
300
150
J
O
(T = 25°C, 5.0 mA ≤ I ≤ 200 mA)
J
O
Input Bias Current (T = 25°C)
Quiescent Current Change
I
−
3.2
6.0
mA
mA
J
IB
ꢁ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
90
ꢂV
A
n
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
OS
−
−
50
−
−
mA
J
I
Average Temperature Coefficient of Output Voltage
ꢁV /ꢁT
±0.3
mV/°C
O
(I = 5.0 mA)
O
Peak Output Current
I
−
700
−
mA
O
(T = 25°C)
J
MC78M18C/B ELECTRICAL CHARACTERISTICS (V = 27 V, I = 350 mA, T = T to T , P ≤ 5.0 W,
I
O
J
low
high
D
unless otherwise noted) (Note 5)
Characteristics
Symbol
Min
Typ
Max
Unit
Output Voltage (T = 25°C)
V
V
17.3
17.1
18
18.7
18.9
Vdc
Vdc
J
O
O
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
Reg
−
10
50
mV
mV
line
I
O
Load Regulation
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)
Quiescent Current Change
I
−
3.2
6.5
mA
mA
J
IB
ꢁ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
−
100
−
ꢂV
A
n
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
OS
−
−
50
−
−
mA
J
I
Average Temperature Coefficient of Output Voltage
ꢁV /ꢁT
±0.3
mV/°C
O
(I = 5.0 mA)
O
Peak Output Current
I
−
700
−
mA
O
(T = 25°C)
J
5. T = 0°C for MC78MxxAC, C
T
= +125°C for MC78MxxAB, AC, B, C
high
low
= −40°C for MC78MxxAB, B
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397
MC78M00, MC78M00A Series
MC78M20C/B ELECTRICAL CHARACTERISTICS (V = 29 V, I = 350 mA, T = T to T , P ≤ 5.0 W,
I
O
J
low
high
D
unless otherwise noted) (Note 6)
Characteristics
Symbol
Min
Typ
Max
Unit
Output Voltage (T = 25°C)
V
V
19.2
19
20
20.8
21
Vdc
Vdc
J
O
O
Output Voltage Variation
−
(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
−
110
−
ꢂV
A
n
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
OS
−
−
50
−
−
mA
J
I
Average Temperature Coefficient of Output Voltage
ꢁV /ꢁT
±0.5
mV/°C
O
(I = 5.0 mA)
O
Peak Output Current
I
−
700
−
mA
O
(T = 25°C)
J
MC78M24C/B ELECTRICAL CHARACTERISTICS (V = 33 V, I = 350 mA, T = T to T , P ≤ 5.0 W,
I
O
J
low
high
D
unless otherwise noted) (Note 6)
Characteristics
Symbol
Min
Typ
Max
Unit
Output Voltage (T = 25°C)
V
V
23
24
25
Vdc
Vdc
J
O
O
Output Voltage Variation
22.8
−
25.2
(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
−
170
−
ꢂV
A
n
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
Average Temperature Coefficient of Output Voltage
ꢁV /ꢁT
±0.5
mV/°C
O
(I = 5.0 mA)
O
Peak Output Current
I
−
700
−
mA
O
(T = 25°C)
J
6. T = 0°C for MC78MxxAC, C
T
= +125°C for MC78MxxAB, AC, B, C
high
low
= −40°C for MC78MxxAB, B
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398
MC78M00, MC78M00A Series
DEFINITIONS
Line Regulation − The change in output voltage for a
Input Bias Current − That part of the input current that
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.
is 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.
2.4
100
P
for T = 50°C
D(max)
A
Free Air
Mounted
Vertically
2.0
90
80
70
60
50
40
2.0 oz. Copper
1.6
L
Minimum
Size Pad
1.2
L
0.8
0.4
0
R
ꢀ
JA
0
5.0
10
15
20
25
30
L, LENGTH OF COPPER (mm)
Figure 2. DPAK Thermal Resistance and Maximum
Power Dissipation versus P.C.B. Copper Length
10
Infinite Heat
Sink
ꢀ
= 10°C/W
HS
5.0
3.0
2.0
ꢀ
= 20°C/W
HS
No Heat Sink
1.0
0.5
0.3
0.2
ꢀ
= 5°C/W
JC
P
= 7.52 W
D(max)
0.1
25
50
75
100
125
150
T , AMBIENT TEMPERATURE (°C)
A
Figure 3. Worst Case Power Dissipation
versus Ambient Temperature (TO−220)
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399
MC78M00, MC78M00A Series
2.5
2.0
1.5
1.0
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
T = 25°C
J
I
I
= 500 mA
= 100 mA
O
O
T = 125°C
J
I = 10 mA
O
0.5
0
ꢁV = 100 mV
O
0
5.0
10
15
20
25
30
35
40
0
25
50
75
100
125
150
V − V , DROPOUT VOLTAGE (V)
T , JUNCTION TEMPERATURE (°C)
J
I
O
Figure 4. Peak Output Current versus
Dropout Voltage
Figure 5. Dropout Voltage versus
Junction Temperature
100
100
80
60
40
20
I
= 500 mA
out
80
60
I
V
V
= 500 mA
= 5.0 V
out
V
V
C
= 5.0 V
= 10 V
= 0
out
out
in
= 10 V
= 0
in
O
C
O
f = 120 Hz
T = 25°C
J
T = 25°C
J
40
30
1.0
10
100
1.0 k 10 k 100 k 1.0 M 10 M 100 M
f, FREQUENCY (Hz)
0.01
0.1
0.5 1.0
10
I , OUTPUT CURRENT (A)
O
Figure 6. Ripple Rejection versus Frequency
Figure 7. Ripple Rejection versus Output Current
5.0
4.0
3.0
2.0
1.0
0
4.0
T = 25°C
J
T = 25°C
J
3.0
2.0
T = 125°C
J
T = 125°C
J
T = 25°C
J
V
= 5.0 V
O
1.0
0
I = 0.5 A
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
I , OUTPUT CURRENT (A)
O
Figure 8. Bias Current versus Input Voltage
Figure 9. Bias Current versus Output Current
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400
MC78M00, MC78M00A Series
APPLICATIONS INFORMATION
Design Considerations
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 ꢂF 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.
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
V , 7.0 V to 20 V
V −V ≥ 2.0 V
in out
O
MC78M05C
Input
R
0.33 ꢂF
Constant
Current to
Grounded
Load
Output
MC78M05C
Input
I
O
7
2
3
*
The MC78M00 regulators can also be used as a current source
when connected as above. In order to minimize dissipation the
MC78M05C is chosen in this application. Resistor R determines
the current as follows:
0.33 ꢂF
0.1 ꢂF
6
10 k
+
1.0 k
4
MC1741
5.0 V
I =
O
+ I
IB
R
I
IB
= 1.5 mA over line and load changes.
The addition of an operational amplifier allows adjustment to higher
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
5.0ꢀꢃ, 10 W resistor and the output voltage compliance would
be the input voltage less 7.0 V.
Figure 10. Current Regulator
Figure 11. Adjustable Output Regulator
MJ2955
or Equiv.
MJ2955 or Equiv.
R
SC
Input
Input
R
2N6049
MC78MXXC
Output
or Equiv.
R
MC78MXXC
1.0 ꢂF
1.0 ꢂF
Output
1.0 ꢂF
XX = 2 digits of type number indicating voltage.
XX = 2 digits of type number indicating voltage.
The circuit of Figure 12 can be modified to provide supply protection
The MC78M00 series can be current boosted with a PNP
transistor. The MJ2955 provides current to 5.0 A. Resistor R in
against short circuits by adding a short circuit sense resistor, R ,
sc
conjunction with the V of the PNP determines when the pass
transistor begins conducting; this circuit is not short circuit
proof. Input−output differential voltage minimum is increased
and an additional PNP transistor. The current sensing PNP must be
able to handle the short circuit current of the three−terminal
regulator .Therefore, a 4.0 A plastic power transistor is specified.
BE
by V of the pass transistor.
BE
Figure 12. Current Boost Regulator
Figure 13. Current Boost with
Short Circuit Protection
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401
MC78M00, MC78M00A Series
ORDERING INFORMATION
†
Shipping
Rails
(No Suffix)
Tape & Reel
(RK Suffix)
Output
Voltage
Device
Temperature Range
Package
Marking
78M05
75 Units/Rail
2500 Units/Reel
MC78M05CDT/RK
MC78M05CDTG/RKG
DPAK−3
DPAK−3
(Pb−Free)
T = 0° to +125°C
J
MC78M05ACDT/RK
MC78M05CT
DPAK−3
8M05D
78M05CT
78M05ACT
8M05A
75 Units/Rail
50 Units/Rail
2500 Units/Reel
TO−220−3
−
MC78M05ACT
5.0 V
75 Units/Rail
2500 Units/Reel
MC78M05ABDT/RK
MC78M05ABDTG
DPAK−3
DPAK−3
(Pb−Free)
T = −40° to +125°C
J
MC78M05ABT
TO−220−3
DPAK−3
78M05ABT
8M05B
50 Units/Rail
75 Units/Rail
50 Units/Rail
75 Units/Rail
75 Units/Rail
−
MC78M05BDT/RK
MC78M05BT
2500 Units/Reel
−
TO−220−3
DPAK−3
78M05BT
78M06
MC78M06CDT/RK
MC78M06CDTG
2500 Units/Reel
2500 Units/Reel
DPAK−3
(Pb−Free)
78M06
T = 0° to +125°C
J
6.0 V
TO−220−3
50 Units/Rail
75 Units/Rail
−
MC78M06CT
78M06CT
78M06BT
78M08
MC78M06BT
T = −40° to +125°C
J
2500 Units/Reel
MC78M08CDT/RK
MC78M08CDT/RKG
DPAK−3
DPAK−3
(Pb−Free)
MC78M08ACDT/RK
MC78M08CT
DPAK−3
8M08D
75 Units/Rail
50 Units/Rail
50 Units/Rail
2500 Units/Reel
T = 0° to +125°C
J
TO−220−3
78M08CT
78M08CT
−
−
MC78M08CTG
TO−220−3
(Pb−Free)
8.0 V
MC78M08ACT
TO−220−3
DPAK−3
78M08ACT
8M08A
50 Units/Rail
75 Units/Rail
50 Units/Rail
75 Units/Rail
75 Units/Rail
−
MC78M08ABDT/RK
MC78M08ABT
2500 Units/Reel
−
TO−220−3
DPAK−3
78M08ABT
8M08B
MC78M08BDT/RK
MC78M08BDTG/RKG
2500 Units/Reel
2500 Units/Reel
T = −40° to +125°C
J
DPAK−3
(Pb−Free)
8M08B
MC78M08BT
TO−220−3
DPAK−3
78M08BT
78M09
50 Units/Rail
75 Units/Rail
−
2500 Units/Reel
MC78M09CDT/RK
MC78M09CDTG/RKG
DPAK−3
(Pb−Free)
T = 0° to +125°C
J
MC78M09CT
TO−220−3
78M09CT
78M09CT
50 Units/Rail
50 Units/Rail
−
−
9.0 V
MC78M09CTG
TO−220−3
(Pb−Free)
MC78M09BDT/RK
MC78M09BT
DPAK−3
TO−220−3
DPAK−3
8M09B
78M09BT
78M12
75 Units/Rail
50 Units/Rail
75 Units/Rail
75 Units/Rail
2500 Units/Reel
−
T = −40° to +125°C
J
MC78M12CDT/RK
MC78M12CDTG/RKG
2500 Units/Reel
2500 Units/Reel
DPAK−3
(Pb−Free)
78M12
MC78M12ACDT/RK
MC78M12CT
DPAK−3
8M12D
75 Units/Rail
50 Units/Rail
50 Units/Rail
2500 Units/Reel
12 V
T = 0° to +125°C
J
TO−220−3
78M12CT
78M12CT
−
−
MC78M12CTG
TO−220−3
(Pb−Free)
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
http://onsemi.com
402
MC78M00, MC78M00A Series
ORDERING INFORMATION
†
Shipping
Rails
(No Suffix)
Tape & Reel
(RK Suffix)
Output
Voltage
Device
MC78M12ACT
Temperature Range
Package
TO−220−3
DPAK−3
Marking
78M12ACT
8M12A
T = 0° to +125°C
J
50 Units/Rail
75 Units/Rail
50 Units/Rail
75 Units/Rail
75 Units/Rail
−
MC78M12ABDT/RK
MC78M12ABT
2500 Units/Reel
−
TO−220−3
DPAK−3
78M12ABT
8M12B
12 V
T = −40° to +125°C
J
MC78M12BDT/RK
MC78M12BDTG/RKG
2500 Units/Reel
2500 Units/Reel
DPAK−3
8M12B
(Pb−Free)
MC78M12BT
T = 0° to +125°C
TO−220−3
DPAK−3
78M12BT
78M15
50 Units/Rail
75 Units/Rail
−
J
15 V
15 V
T = 0° to +125°C
J
2500 Units/Reel
MC78M15CDT/RK
MC78M15ACDT/RK
MC78M15ACDTG/RKG
8M15D
8M15D
T = 0° to +125°C
J
DPAK−3
75 Units/Rail
2500 Units/Reel
(Pb−Free)
MC78M15CT
15 V
15 V
T = 0° to +125°C
TO−220−3
78M15CT
78M15CT
50 Units/Rail
50 Units/Rail
−
−
J
MC78M15CTG
T = 0° to +125°C
J
TO−220−3
(Pb−Free)
MC78M15ACT
15 V
15 V
T = 0° to +125°C
TO−220−3
78M15ACT
78M15ACT
50 Units/Rail
50 Units/Rail
−
−
J
MC78M15ACTG
T = 0° to +125°C
J
TO−220−3
(Pb−Free)
15 V
T = −40° to +125°C
MC78M15ABDT/RK
MC78M15ABT
MC78M15BDT/RK
MC78M15BT
DPAK−3
TO−220−3
DPAK−3
8M15A
78M15ABT
8M15B
75 Units/Rail
50 Units/Rail
75 Units/Rail
50 Units/Rail
75 Units/Rail
50 Units/Rail
2500 Units/Reel
J
−
2500 Units/Reel
TO−220−3
DPAK−3
78M15BT
78M18
−
18 V
T = 0° to +125°C
J
MC78M18CDT/RK
MC78M18CT
2500 Units/Reel
TO−220−3
−
78M18CT
78M18BT
78M20CT
78M20BT
78M24CT
78M24BT
MC78M18BT
T = −40° to +125°C
J
20 V
24 V
MC78M20CT
T = 0° to +125°C
J
MC78M20BT
T = −40° to +125°C
J
MC78M24CT
T = 0° to +125°C
J
MC78M24BT
T = −40° to +125°C
J
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
http://onsemi.com
403
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