Datasheet MC 7915 CTG Datasheet

Page 1
© Semiconductor Components Industries, LLC, 2013
July, 2013 − Rev. 18
1 Publication Order Number:
MC7900/D
MC7900 Series
1.0 A Negative Voltage Regulators
The MC7900 series of fixed output negative voltage regulators are intended as complements to the popular MC7800 series devices. These negative regulators are available in the same seven−voltage options as the MC7800 devices. In addition, one extra voltage option commonly employed in MECL systems is also available in the negative MC7900 series.
Available in fixed output voltage options from 5.0 V to 24 V, these regulators employ current limiting, thermal shutdown, and safearea compensation making them remarkably rugged under most operating conditions. With adequate heatsinking they can deliver output currents in excess of 1.0 A.
No External Components Required
Internal Thermal Overload Protection
Internal Short Circuit Current Limiting
Output Transistor SafeArea Compensation
Available in 2% Voltage Tolerance (See Ordering Information)
PbFree Package May be Available. The GSuffix Denotes a
PbFree Lead Finish
Figure 1. Representative Schematic Diagram
Gnd
V
O
V
I
2.4 k
25
3.6 k
1.2 k
1.1 k
2.0 k
12 k
1.0 k
4.0 k
2.0 k
14.7 k
2.0 k
8.0 k
1.0 k
1.6 k
4.0 k
0.3
10 k
10 k
20 k 20 k
20 pF
10 pF
240
750
R
1
R
2
This device contains 26 active transistors.
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TO−220
T SUFFIX
CASE 221AB
Heatsink surface
connected to Pin 2.
Pin 1. Ground
2. Input
3. Output
D
2
PAK
D2T SUFFIX
CASE 936
Heatsink surface (shown as terminal 4 in
case outline drawing) is connected to Pin 2.
1
2
3
1
2
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 more negative even during the high point of the input ripple voltage.
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
improve stability and transient response.
MC79XX
Input
C
in
*
0.33 mF
C
O
**
1.0 mF
Output
XX,
**
**
See detailed ordering and shipping information in the package dimensions section on page 11 of this data sheet.
ORDERING INFORMATION
See general marking information in the device marking section on page 14 of this data sheet.
DEVICE MARKING INFORMATION
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2
MAXIMUM RATINGS (T
A
= +25°C, unless otherwise noted.)
Rating
Symbol Value Unit
Input Voltage (−5.0 V ≥ VO 18 V)
Input Voltage (24 V)
V
I
35
40
Vdc
Power Dissipation Case 221A
TA = +25°C P
D
Internally Limited W
Thermal Resistance, JunctiontoAmbient
q
JA
65 °C/W
Thermal Resistance, JunctiontoCase
q
JC
5.0 °C/W
Case 936 (D2PAK)
TA = +25°C P
D
Internally Limited W
Thermal Resistance, JunctiontoAmbient
q
JA
70 °C/W
Thermal Resistance, JunctiontoCase
q
JC
5.0 °C/W
Storage Junction Temperature Range T
stg
65 to +150 °C
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
MC7905B, MC7905C ELECTRICAL CHARACTERISTICS
(VI = 10 V, IO = 500 mA, Tlow* < TJ < +125°C, unless otherwise noted.)
Characteristics
Symbol Min Typ Max Unit
Output Voltage (TJ = +25°C) V
O
4.8 5.0 5.2 Vdc
Line Regulation (Note 1)
(T
J
= +25°C, IO = 100 mA)
7.0 Vdc ≥ V
I
25 Vdc
8.0 Vdc ≥ V
I
12 Vdc
(T
J
= +25°C, IO = 500 mA)
7.0 Vdc ≥ V
I
25 Vdc
8.0 Vdc ≥ V
I
12 Vdc
Reg
line
7.0
2.0
35
8.0
50 25
100
50
mV
Load Regulation, TJ = +25°C (Note 1)
5.0 mA I
O
1.5 A
250 mA I
O
750 mA
Reg
load
11
4.0
100
50
mV
Output Voltage
7.0 Vdc ≥ V
I
20 Vdc, 5.0 mA IO 1.0 A, P 15 W
V
O
4.75 5.25
Vdc
Input Bias Current (TJ = +25°C) I
IB
4.3 8.0 mA
Input Bias Current Change
7.0 Vdc ≥ V
I
25 Vdc
5.0 mA I
O
1.5 A
DI
IB
1.3
0.5
mA
Output Noise Voltage (TA = +25°C, 10 Hz f 100 kHz) V
n
40
mV
Ripple Rejection (IO = 20 mA, f = 120 Hz) RR 70 dB
Dropout Voltage
I
O
= 1.0 A, TJ = +25°C
VI−V
O
1.3
Vdc
Average Temperature Coefficient of Output Voltage
I
O
= 5.0 mA, Tlow* TJ +125°C
DVO/DT
1.0
mV/°C
1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty cycle is used.
*Tlow = 40°C for MC7905B and Tlow = 0°C for MC7905C.
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MC7905AC ELECTRICAL CHARACTERISTICS
(VI = 10 V, IO = 500 mA, 0°C < TJ < +125°C, unless otherwise noted.)
Characteristics
Symbol Min Typ Max Unit
Output Voltage (TJ = +25°C) V
O
4.9 5.0 5.1 Vdc
Line Regulation (Note 2)
8.0 Vdc ≥ V
I
12 Vdc; IO = 1.0 A, TJ = +25°C
8.0 Vdc ≥ V
I
12 Vdc; IO = 1.0 A
7.5 Vdc ≥ V
I
25 Vdc; IO = 500 mA
7.0 Vdc ≥ V
I
20 Vdc; IO = 1.0 A, TJ = +25°C
Reg
line
2.0
7.0
7.0
6.0
25 50 50 50
mV
Load Regulation (Note 2)
5.0 mA I
O
1.5 A, TJ = +25°C
250 mA I
O
750 mA
5.0 mA I
O
1.0 A
Reg
load
11
4.0
9.0
100
50
100
mV
Output Voltage
7.5 Vdc ≥ V
I
20 Vdc, 5.0 mA IO 1.0 A, P 15 W
V
O
4.80 5.20
Vdc
Input Bias Current I
IB
4.4 8.0 mA
Input Bias Current Change
7.5 Vdc ≥ V
I
25 Vdc
5.0 mA I
O
1.0 A
5.0 mA I
O
1.5 A, TJ = +25°C
DI
IB
1.3
0.5
0.5
mA
Output Noise Voltage (TA = +25°C, 10 Hz f 100 kHz) V
n
40
mV
Ripple Rejection (IO = mA, f = 120 Hz) RR 70 dB
Dropout Voltage (IO = 1.0 A. TJ = +25°C) VI−V
O
1.3 Vdc
Average Temperature Coefficient of Output Voltage
I
O
= 5.0 A, 0°C TJ +125°C
DVO/DT
1.0
mV/°C
MC7905.2C ELECTRICAL CHARACTERISTICS
(VI = 10 V, IO = 500 mA, 0°C < TJ < +125°C, unless otherwise noted.)
Characteristics Symbol Min Typ Max Unit
Output Voltage (TJ = +25°C) V
O
5.0 5.2 5.4 Vdc
Line Regulation (Note 2)
(T
J
= +25°C, IO = 100 mA)
7.2 Vdc ≥ V
I
25 Vdc
8.0 Vdc ≥ V
I
12 Vdc
(T
J
= +25°C, IO = 500 mA)
7.2 Vdc ≥ V
I
25 Vdc
8.0 Vdc ≥ V
I
12 Vdc
Reg
line
8.0
2.2
37
8.5
52 27
105
52
mV
Load Regulation, TJ = +25°C (Note 2)
5.0 mA I
O
1.5 A
250 mA I
O
750 mA
Reg
load
12
4.5
105
52
mV
Output Voltage
7.2 Vdc ≥ V
I
20 Vdc, 5.0 mA IO 1.0 A, P 15 W
V
O
4.95 5.45
Vdc
Input Bias Current (TJ = +25°C) I
IB
4.3 8.0 mA
Input Bias Current Change
7.2 Vdc ≥ V
I
25 Vdc
5.0 mA I
O
1.5 A
DI
IB
1.3
0.5
mA
Output Noise Voltage (TA = +25°C, 10 Hz f 100 kHz) V
n
42
mV
Ripple Rejection (IO = 20 mA, f = 120 Hz) RR 68 dB
Dropout Voltage (IO = 1.0 A, TJ = +25°C) VI−V
O
1.3 Vdc
Average Temperature Coefficient of Output Voltage
I
O
= 5.0 mA, 0°C TJ +125°C
DVO/DT
1.0
mV/°C
2. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty cycle is used.
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MC7906C ELECTRICAL CHARACTERISTICS
(VI = 11 V, IO = 500 mA, 0°C < TJ < +125°C, unless otherwise noted.)
Characteristics
Symbol Min Typ Max Unit
Output Voltage (TJ = +25°C) V
O
5.75 6.0 6.25 Vdc
Line Regulation (Note 3)
(T
J
= +25°C, IO = 100 mA)
8.0 Vdc ≥ V
I
25 Vdc
9.0 Vdc ≥ V
I
13 Vdc
(T
J
= +25°C, IO = 500 mA)
8.0 Vdc ≥ V
I
25 Vdc
9.0 Vdc ≥ V
I
13 Vdc
Reg
line
9.0
3.0
43 10
60 30
120
60
mV
Load Regulation, TJ = +25°C (Note 3)
5.0 mA I
O
1.5 A
250 mA I
O
750 mA
Reg
load
13
5.0
120
60
mV
Output Voltage
8.0 Vdc ≥ V
I
21 Vdc, 5.0 mA IO 1.0 A, P 15 W
V
O
5.7 6.3
Vdc
Input Bias Current (TJ = +25°C) I
IB
4.3 8.0 mA
Input Bias Current Change
8.0 Vdc ≥ V
I
25 Vdc
5.0 mA I
O
1.5 A
DI
IB
1.3
0.5
mA
Output Noise Voltage (TA = +25°C, 10 Hz f 100 kHz) V
n
45
mV
Ripple Rejection (IO = 20 mA, f = 120 Hz) RR 65 dB
Dropout Voltage (IO = 1.0 A, TJ = +25°C) VI−V
O
1.3 Vdc
Average Temperature Coefficient of Output Voltage
I
O
= 5.0 A, 0°C TJ +125°C
DVO/DT
1.0
mV/°C
MC7908C ELECTRICAL CHARACTERISTICS
(VI = 14 V, IO = 500 mA, 0°C < TJ < +125°C, unless otherwise noted.)
Characteristics Symbol Min Typ Max Unit
Output Voltage (TJ = +25°C) V
O
7.7 8.0 8.3 Vdc
Line Regulation (Note 3)
(T
J
= +25°C, IO = 100 mA)
10.5 Vdc ≥ V
I
25 Vdc
11 Vdc V
I
17 Vdc
(T
J
= +25°C, IO = 500 mA)
10.5 Vdc ≥ V
I
25 Vdc
11 Vdc V
I
17 Vdc
Reg
line
12
5.0
50 22
80 40
160
80
mV
Load Regulation, TJ = +25°C (Note 3)
5.0 mA I
O
1.5 A
250 mA I
O
750 mA
Reg
load
26
9.0
160
80
mV
Output Voltage
10.5 Vdc ≥ V
I
23 Vdc, 5.0 mA IO 1.0 A, P 15 W
V
O
7.6 8.4
Vdc
Input Bias Current (TJ = +25°C) I
IB
4.3 8.0 mA
Input Bias Current Change
10.5 Vdc ≥ V
I
25 Vdc
5.0 mA I
O
1.5 A
DI
IB
1.0
0.5
mA
Output Noise Voltage (TA = +25°C, 10 Hz f 100 kHz) V
n
52
mV
Ripple Rejection (IO = 20 mA, f = 120 Hz) RR 62 dB
Dropout Voltage (IO = 1.0 A, TJ = +25°C) VI−V
O
1.3 Vdc
Average Temperature Coefficient of Output Voltage
I
O
= 5.0 mA, 0°C TJ +125°C
DVO/DT
1.0
mV/°C
3. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty cycle is used.
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MC7912B, MC7912C ELECTRICAL CHARACTERISTICS
(VI = 19 V, IO = 500 mA, Tlow* < TJ < +125°C, unless otherwise noted.)
Characteristics
Symbol Min Typ Max Unit
Output Voltage (TJ = +25°C) V
O
11.5 12 12.5 Vdc
Line Regulation (Note 4)
(T
J
= +25°C, IO = 100 mA)
14.5 Vdc ≥ V
I
30 Vdc
16 Vdc ≥ V
I
22 Vdc
(T
J
= +25°C, IO = 500 mA)
14.5 Vdc ≥ V
I
30 Vdc
16 Vdc ≥ V
I
22 Vdc
Reg
line
13
6.0
55 24
120
60
240 120
mV
Load Regulation, TJ = +25°C (Note 4)
5.0 mA I
O
1.5 A
250 mA I
O
750 mA
Reg
load
46 17
240 120
mV
Output Voltage
14.5 Vdc ≥ V
I
27 Vdc, 5.0 mA IO 1.0 A, P 15 W
V
O
11.4 12.6
Vdc
Input Bias Current (TJ = +25°C) I
IB
4.4 8.0 mA
Input Bias Current Change
14.5 Vdc ≥ V
I
30 Vdc
5.0 mA I
O
1.5 A
DI
IB
1.0
0.5
mA
Output Noise Voltage (TA = +25°C, 10 Hz f 100 kHz) V
n
75
mV
Ripple Rejection (IO = 20 mA, f = 120 Hz) RR 61 dB
Dropout Voltage (IO = 1.0 A, TJ = +25°C) VI−V
O
1.3 Vdc
Average Temperature Coefficient of Output Voltage
I
O
= 5.0 mA, Tlow* TJ +125°C
DVO/DT
1.0
mV/°C
MC7912AC ELECTRICAL CHARACTERISTICS
(VI = 19 V, IO = 500 mA, Tlow* < TJ < +125°C, unless otherwise noted.)
Characteristics Symbol Min Typ Max Unit
Output Voltage (TJ = +25°C) V
O
11.75 12 12.25 Vdc
Line Regulation (Note 4)
16 Vdc ≥ V
I
22 Vdc; IO = 1.0 A, TJ = +25°C
16 Vdc ≥ V
I
22 Vdc; IO = 1.0 A
14.8 Vdc ≥ V
I
30 Vdc; IO = 500 mA
14.5 Vdc ≥ V
I
27 Vdc; IO = 1.0 A, TJ = +25°C
Reg
line
6.0 24 24 13
60 120 120 120
mV
Load Regulation (Note 4)
5.0 mA I
O
1.5 A, TJ = +25°C
250 mA I
O
750 mA
5.0 mA I
O
1.0 A
Reg
load
46 17 35
150
75 150
mV
Output Voltage
14.8 Vdc ≥ V
I
27 Vdc, 5.0 mA IO 1.0 A, P 15 W
V
O
11.5 12.5
Vdc
Input Bias Current I
IB
4.4 8.0 mA
Input Bias Current Change
15 Vdc ≥ V
I
30 Vdc
5.0 mA I
O
1.0 A
5.0 mA I
O
1.5 A, TJ = +25°C
DI
IB
0.8
0.5
0.5
mA
Output Noise Voltage (TA = +25°C, 10 Hz f 100 kHz) V
n
75
mV
Ripple Rejection (IO = 20 mA, f = 120 Hz) RR 61 dB
Dropout Voltage (IO = 1.0 A, TJ = +25°C) VI−V
O
1.3 Vdc
Average Temperature Coefficient of Output Voltage
I
O
= 5.0 A, Tlow* TJ +125°C
DVO/DT
1.0
mV/°C
4. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty cycle is used.
*Tlow = 40°C for MC7912B and Tlow = 0°C for MC7912C.
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MC7915B, MC7915C ELECTRICAL CHARACTERISTICS
(VI = 23 V, IO = 500 mA, Tlow* < TJ < +125°C, unless otherwise noted.)
Characteristics
Symbol Min Typ Max Unit
Output Voltage (TJ = +25°C) V
O
14.4 15 15.6 Vdc
Line Regulation (Note 5)
(T
J
= +25°C, IO = 100 mA)
17.5 Vdc ≥ V
I
30 Vdc
20 Vdc ≥ V
I
26 Vdc
(T
J
= +25°C, IO = 500 mA)
17.5 Vdc ≥ V
I
30 Vdc
20 Vdc ≥ V
I
26 Vdc
Reg
line
14
6.0
57 27
150
75
300 150
mV
Load Regulation, TJ = +25°C (Note 5)
5.0 mA I
O
1.5 A
250 mA I
O
750 mA
Reg
load
68 25
300 150
mV
Output Voltage
17.5 Vdc ≥ V
I
30 Vdc, 5.0 mA IO 1.0 A, P 15 W
V
O
14.25 15.75
Vdc
Input Bias Current (TJ = +25°C) I
IB
4.4 8.0 mA
Input Bias Current Change
17.5 Vdc ≥ V
I
30 Vdc
5.0 mA I
O
1.5 A
DI
IB
1.0
0.5
mA
Output Noise Voltage (TA = +25°C, 10 Hz f 100 kHz) V
n
90
mV
Ripple Rejection (IO = 20 mA, f = 120 Hz) RR 60 dB
Dropout Voltage (IO = 1.0 A, TJ = +25°C) VI−V
O
1.3 Vdc
Average Temperature Coefficient of Output Voltage
I
O
= 5.0 A, Tlow* TJ +125°C
DVO/DT
1.0
mV/°C
MC7915AC ELECTRICAL CHARACTERISTICS
(VI = 23 V, IO = 500 mA, Tlow* < TJ < +125°C, unless otherwise noted.)
Characteristics Symbol Min Typ Max Unit
Output Voltage (TJ = +25°C) V
O
14.7 15 15.3 Vdc
Line Regulation (Note 5)
20 Vdc ≥ V
I
26 Vdc, IO = 1.0 A, TJ = +25°C
20 Vdc ≥ V
I
26 Vdc, IO = 1.0 A,
17.9 Vdc ≥ V
I
30 Vdc, IO = 500 mA
17.5 Vdc ≥ V
I
30 Vdc, IO = 1.0 A, TJ = +25°C
Reg
line
27 57 57 57
75 150 150 150
mV
Load Regulation (Note 5)
5.0 mA I
O
1.5 A, TJ = +25°C
250 mA I
O
750 mA
5.0 mA I
O
1.0 A
Reg
load
68 25 40
150
75 150
mV
Output Voltage
17.9 Vdc ≥ V
I
30 Vdc, 5.0 mA IO 1.0 A, P 15 W
V
O
14.4 15.6
Vdc
Input Bias Current I
IB
4.4 8.0 mA
Input Bias Current Change
17.5 Vdc ≥ V
I
30 Vdc
5.0 mA I
O
1.0 A
5.0 mA I
O
1.5 A, TJ = +25°C
DI
IB
0.8
0.5
0.5
mA
Output Noise Voltage (TA = +25°C, 10 Hz f 100 kHz) V
n
90
mV
Ripple Rejection (IO = 20 mA, f = 120 Hz) RR 60 dB
Dropout Voltage (IO = 1.0 A, TJ = +25°C) VI−V
O
1.3 Vdc
Average Temperature Coefficient of Output Voltage
I
O
= 5.0 mA, Tlow* TJ +125°C
DVO/DT
1.0
mV/°C
5. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty cycle is used.
*Tlow = 40°C for MC7915B and Tlow = 0°C for MC7915C.
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MC7918C ELECTRICAL CHARACTERISTICS
(VI = 27 V, IO = 500 mA, 0°C < TJ < +125°C, unless otherwise noted.)
Characteristics
Symbol Min Typ Max Unit
Output Voltage (TJ = +25°C) V
O
17.3 18 18.7 Vdc
Line Regulation (Note 6)
(T
J
= +25°C, IO = 100 mA)
21 Vdc ≥ V
I
33 Vdc
24 Vdc ≥ V
I
30 Vdc
(T
J
= +25°C, IO = 500 mA)
21 Vdc ≥ V
I
33 Vdc
24 Vdc ≥ V
I
30 Vdc
Reg
line
25 10
90 50
180
90
360 180
mV
Load Regulation, TJ = +25°C (Note 6)
5.0 mA I
O
1.5 A
250 mA I
O
750 mA
Reg
load
110
55
360 180
mV
Output Voltage
21 Vdc ≥ V
I
33 Vdc, 5.0 mA IO 1.0 A, P 15 W
V
O
17.1 18.9
Vdc
Input Bias Current (TJ = +25°C) I
IB
4.5 8.0 mA
Input Bias Current Change
21 Vdc ≥ V
I
33 Vdc
5.0 mA I
O
1.5 A
DI
IB
1.0
0.5
mA
Output Noise Voltage (TA = +25°C, 10 Hz f 100 kHz) V
n
110
mV
Ripple Rejection (IO = 20 mA, f = 120 Hz) RR 59 dB
Dropout Voltage (IO = 1.0 A, TJ = +25°C) VI−V
O
1.3 Vdc
Average Temperature Coefficient of Output Voltage
I
O
= 5.0 mA, 0°C TJ +125°C
DVO/DT
1.0
mV/°C
MC7924B, MC7924C ELECTRICAL CHARACTERISTICS
(VI = 33 V, IO = 500 mA, Tlow* < TJ < +125°C, unless otherwise noted.)
Characteristics Symbol Min Typ Max Unit
Output Voltage (TJ = +25°C) V
O
23 24 25 Vdc
Line Regulation (Note 6)
(T
J
= +25°C, IO = 100 mA)
27 Vdc ≥ V
I
38 Vdc
30 Vdc ≥ V
I
36 Vdc
(T
J
= +25°C, IO = 500 mA)
27 Vdc ≥ V
I
38 Vdc
30 Vdc ≥ V
I
36 Vdc
Reg
line
31 14
118
70
240 120
470 240
mV
Load Regulation, TJ = +25°C (Note 6)
5.0 mA I
O
1.5 A
250 mA I
O
750 mA
Reg
load
150
85
480 240
mV
Output Voltage
27 Vdc ≥ V
I
38 Vdc, 5.0 mA IO 1.0 A, P 15 W
V
O
22.8 25.2
Vdc
Input Bias Current (TJ = +25°C) I
IB
4.6 8.0 mA
Input Bias Current Change
27 Vdc ≥ V
I
38 Vdc
5.0 mA I
O
1.5 A
DI
IB
1.0
0.5
mA
Output Noise Voltage (TA = +25°C, 10 Hz f 100 kHz) V
n
170
mV
Ripple Rejection (IO = 20 mA, f = 120 Hz) RR 56 dB
Dropout Voltage (IO = 1.0 A, TJ = +25°C) VI−V
O
1.3 Vdc
Average Temperature Coefficient of Output Voltage
I
O
= 5.0 mA, Tlow* TJ +125°C
DVO/DT
1.0
mV/°C
6. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty cycle is used.
*Tlow = 40°C for MC7924B and Tlow = 0°C for MC7924C.
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8
Figure 2. Worst Case Power Dissipation as a
Function of Ambient Temperature
Figure 3. Peak Output Current as a Function
of InputOutput Differential Voltage
Figure 4. Ripple Rejection as a
Function of Frequency
Figure 5. Ripple Rejection as a Function
of Output Voltage
Figure 6. Output Voltage as a Function
of Junction Temperature
Figure 7. Quiescent Current as a
Function of Temperature
, POWER DISSIPATION (W)
D
P
Infinite Heatsink
q
HS
= 5°C/W
qHS = 15°C/W
No Heatsink
q
JC
= 5° C/W
q
JA
= 65° C/W
P
D
(max) = 15W
, OUTPUT CURRENT (A)
O
I
RR, RIPPLE REJECTION (dB)
Vin = -11 V V
O
= -6.0 V
I
O
= 20 mA
RR, RIPPLE REJECTION (dB)
f = 120 Hz I
O
= 20 mA
DV
in
= 1.0 V(RMS)
, OUTPUT VOLTAGE (-V)
O
V
Vin = -11 V V
D
= -6.0 V
I
O
= 20 mA
, INPUT BIAS CURRENT (mA)
IB
I
Vin = -11 V VO = -6.0 V I
O
= 20 mA
TJ = +25°C
20 10
5.0
4.0
3.0
2.0
1.0
0.5
0.4
0.3
0.2
0.1
2.5
2.0
1.5
1.0
0.5
0
100
80
60
40
20
80
70
60
50
40
6.26
6.22
6.18
6.14
6.10
6.06
5.2
5.0
4.8
4.6
4.4
4.2
25 50 75 100 125 150
T
A
, AMBIENT TEMPERATURE (°C)
0 3.0 6.0 9.0 12 15 18 21 24 27 30
|VI -VO| INPUT-OUTPUT VOLTAGE DIFFERENTIAL (V)
10 100 1.0 k 10 k 100 k
f, FREQUENCY (Hz)
2.0 4.0 6.0 8.0 10 12 14 16 18 20 22 V
O
, OUTPUT VOLTAGE (V)
-25 0 25 50 75 100 125 150 175
T
J
, JUNCTION TEMPERATURE (°C)
0 25 50 75 100 125
TJ, JUNCTION TEMPERATURE (°C)
0
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9
APPLICATIONS INFORMATION
Design Considerations
The MC7900 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 highfrequency characteristics to insure stable operation under all load conditions. A 0.33 mF or larger tantalum, mylar, or other capacitor having low internal impedance at high frequencies should be chosen. The capacitor chosen should have an equivalent series resistance of less than
0.7 W. The bypass capacitor should be mounted with the shortest possible leads directly across the regulators 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. Bypassing the output is also recommended.
Figure 8. Current Regulator
-20 V Input
MC7905
10
R
IO = 200 mA
­VO 10 V
1.0 mF
Gnd Gnd
+
1.0 mF +
The MC7905, 5.0 V regulator can be used as a constant current source when connected as above. The output current is the sum of resistor R current and quiescent bias current as follows:
IO+
5.0 V R
) I
B
The quiescent current for this regulator is typically 4.3 mA. The 5.0 V regulator was chosen to minimize dissipation and to allow the output voltage to operate to within 6.0 V below the input voltage.
Figure 9. Current Boost Regulator
(5.0 V @ 4.0 A, with 5.0 A Current Limiting)
*Mounted on heatsink.
-10 V Input
0.56
0.56
0.56
MJE200* or Equiv
5.6
2N3055* or Equiv
MC7905*
1.0 mF
-5.0 V Output
Gnd Gnd
+
+
1.0 mF
10 mF
+
When a boost transistor is used, short circuit currents are equal to the sum of the series pass and regulator limits, which are measured at 3.2 A and 1.8 A respectively in this case. Series pass limiting is approximately equal to 0.6 V/R
SC
. Operation beyond this point to the peak current capability of the MC7905C is possible if the regulator is mounted on a heatsink; otherwise thermal shutdown will occur when the additional load current is picked up by the regulator.
Figure 10. Operational Amplifier Supply
+20 V
Input
+15 V Output
0.33 mF
1N4001G
or Equiv
Gnd
Gnd
1.0 mF
+
-20 V Input
-15 V Output
MC7815
MC7915
+
+
+
1.0 mF
1.0 mF
1.0 mF
1N4001G
or Equiv
Clamp diode
1N4001G or Equiv
1N4001G or Equiv
The MC7815 and MC7915 positive and negative regulators may be connected as shown to obtain a dual power supply for operational amplifiers. A clamp diode should be used at the output of the MC7815 to prevent potential latchup problems whenever the output of the positive regulator (MC7815) is drawn below ground with an output current greater than 200 mA.
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MC7900 Series
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10
Protection Diodes
When external capacitors are used with MC7900 series regulator it is sometimes necessary to add protection diodes to prevent the capacitors from discharging through low current points into the regulator or from output polarity reversals. Generally, no protection diode is required for values of output capacitance less then 10mF. Figure 11 shows the MC7915 with the recommended protection diodes.
Opposite Polarity Protection
Diode D
1 protects the regulator from output polarity
reversals during startup, power off and short-circuit operation.
Reverse-bias Protection
Diode D
2 prevents output capacitor from discharging thru
the MC7915 during an input short circuit or fast switch off of power supply.
Figure 11. Protection Diodes
Gnd
Gnd
+
-20 V Input
-15 V Output
MC7915
+
1.0 mF 1.0 mF
MBRS140
or Equiv
D1
MBRS140
or Equiv
D2
DEFINITIONS
Line Regulation The change in output voltage for a 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.
Load Regulation The change in output voltage for a change in load current at constant chip temperature.
Maximum Power Dissipation − The maximum total device dissipation for which the regulator will operate within specifications.
Input Bias Current That part of the input current that
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.
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.
Figure 12. D2PAK Thermal Resistance and Maximum
Power Dissipation versus P.C.B. Copper Length
R , THERMAL RESISTANCE
JAθ
JUNCTION‐TO‐AIR ( C/W)°
P
D(max)
for TA = +50°C
ÎÎÎ
ÎÎÎ
ÎÎÎ
P
D
, MAXIMUM POWER DISSIPATION (W)
30
40
50
60
70
80
010203025155.0
L, LENGTH OF COPPER (mm)
Minimum Size Pad
2.0 oz. Copper L
L
Free Air Mounted
Vertically
R
q
JA
1.0
1.5
2.0
2.5
3.0
3.5
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MC7900 Series
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11
ORDERING INFORMATION
Device
Nominal
Output Voltage
Output Voltage
Tolerance
Package
Operating
Temperature Range
Shipping
MC7905ACD2T
5.0 V 2%
D2PAK
TJ = 0°C to +125°C
50 Units/Rail
MC7905ACD2TG D2PAK
(PbFree)
50 Units/Rail
MC7905ACD2TR4 D2PAK 800 Tape & Reel
MC7905ACD2TR4G D2PAK
(PbFree)
800 Tape & Reel
MC7905ACT TO220 50 Units/Rail
MC7905ACTG TO220
(PbFree)
50 Units/Rail
MC7905BD2T
4%
D2PAK
TJ = 40°C to +125°C
50 Units/Rail
MC7905BD2TG D2PAK
(PbFree)
50 Units/Rail
MC7905BD2TR4 D2PAK 800 Tape & Reel
MC7905BD2TR4G D2PAK
(PbFree)
800 Tape & Reel
MC7905BT TO220 50 Units/Rail
MC7905BTG TO220
(PbFree)
50 Units/Rail
MC7905CD2T D2PAK
TJ = 0°C to +125°C
50 Units/Rail
MC7905CD2TG D2PAK
(PbFree)
50 Units/Rail
MC7905CD2TR4 D2PAK 800 Tape & Reel
MC7905CD2TR4G D2PAK
(PbFree)
800 Tape & Reel
MC7905CT TO220 50 Units/Rail
MC7905CTG TO220
(PbFree)
50 Units/Rail
MC7905.2CT
5.2 V 4%
TO−220
TJ = 0°C to +125°C
50 Units/Rail
MC7905.2CTG TO220
(PbFree)
50 Units/Rail
MC7906CD2T
6.0 V 4%
D2PAK
TJ = 0°C to +125°C
50 Units/Rail
MC7906CD2TG D2PAK
(PbFree)
50 Units/Rail
MC7906CT TO220 50 Units/Rail
MC7906CTG TO220
(PbFree)
50 Units/Rail
MC7908ACT
8.0 V 2%
TO−220
TJ = 0°C to +125°C
50 Units/Rail
MC7908ACTG TO220
(PbFree)
50 Units/Rail
MC7908CD2T
4%
D2PAK 50 Units/Rail
MC7908CD2TG D2PAK
(PbFree)
50 Units/Rail
MC7908CD2TR4 D2PAK 800 Tape & Reel
MC7908CD2TR4G D2PAK
(PbFree)
800 Tape & Reel
MC7908CT TO220 50 Units/Rail
MC7908CTG TO220
(PbFree)
50 Units/Rail
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MC7900 Series
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12
Device Shipping
Operating
Temperature Range
Package
Output Voltage
Tolerance
Nominal
Output Voltage
MC7912ACD2T
12 V 2%
D2PAK
TJ = 0°C to +125°C
50 Units/Rail
MC7912ACD2TG D2PAK
(PbFree)
50 Units/Rail
MC7912ACD2TR4 D2PAK 800 Tape & Reel
MC7912ACD2TR4G D2PAK
(PbFree)
800 Tape & Reel
MC7912ACT TO220 50 Units/Rail
MC7912ACTG TO220
(PbFree)
50 Units/Rail
MC7912BD2T
4%
D2PAK
TJ = 40°C to +125°C
50 Units/Rail
MC7912BD2TG D2PAK
(PbFree)
50 Units/Rail
MC7912BD2TR4 D2PAK 800 Tape & Reel
MC7912BD2TR4G D2PAK
(PbFree)
800 Tape & Reel
MC7912BT TO220 50 Units/Rail
MC7912BTG TO220
(PbFree)
50 Units/Rail
MC7912CD2T D2PAK
TJ = 0°C to +125°C
50 Units/Rail
MC7912CD2TG D2PAK
(PbFree)
50 Units/Rail
MC7912CD2TR4 D2PAK 800 Tape & Reel
MC7912CD2TR4G D2PAK
(PbFree)
800 Tape & Reel
MC7912CT TO220 50 Units/Rail
MC7912CTG TO220
(PbFree)
50 Units/Rail
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MC7900 Series
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13
Device Shipping
Operating
Temperature Range
Package
Output Voltage
Tolerance
Nominal
Output Voltage
MC7915ACD2T
15 V 2%
D2PAK
TJ = 0°C to +125°C
50 Units/Rail
MC7915ACD2TG D2PAK
(PbFree)
50 Units/Rail
MC7915ACT TO220 50 Units/Rail
MC7915ACTG TO220
(PbFree)
50 Units/Rail
MC7915BD2T
4%
D2PAK
TJ = 40°C to +125°C
50 Units/Rail
MC7915BD2TG D2PAK
(PbFree)
50 Units/Rail
MC7915BT TO220 50 Units/Rail
MC7915BTG TO220
(PbFree)
50 Units/Rail
MC7915BD2TR4G D2PAK
(PbFree)
800 Tape & Reel
MC7915CD2T D2PAK
TJ = 0°C to +125°C
50 Units/Rail
MC7915CD2TG D2PAK
(PbFree)
50 Units/Rail
MC7915CD2TR4 D2PAK 800 Tape & Reel
MC7915CD2TR4G D2PAK
(PbFree)
800 Tape & Reel
MC7915CT TO220 50 Units/Rail
MC7915CTG TO220
(PbFree)
50 Units/Rail
MC7918CT
18 V 4%
TO−220
TJ = 0°C to +125°C
50 Units/Rail
MC7918CTG TO220
(PbFree)
50 Units/Rail
MC7924BT
24 V 4%
TO−220
TJ = 40°C to +125°C
50 Units/Rail
MC7924BTG TO220
(PbFree)
50 Units/Rail
MC7924CD2T D2PAK
TJ = 0°C to +125°C
50 Units/Rail
MC7924CD2TG D2PAK
(PbFree)
50 Units/Rail
MC7924CT TO220 50 Units/Rail
MC7924CTG TO220
(PbFree)
50 Units/Rail
†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.
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14
TO−220
T SUFFIX
CASE 221AB
MARKING DIAGRAMS
xx = Nominal Voltage A = Assembly Location WL = Wafer Lot Y = Year WW = Work Week G = PbFree Device
1
MC
79xxACT
AWLYWWG
23 1
MC
7905.2CT
AWLYWWG
23 1
MC
79xxBT
AWLYWWG
23 1
MC
79xxCT
AWLYWWG
23
D
2
PAK
D2T SUFFIX
CASE 936
MC 79xxACD2T AWLYWWG
1
2
3
MC
79xxBD2T
AWLYWWG
1
2
3
MC
79xxCD2T
AWLYWWG
1
2
3
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15
PACKAGE DIMENSIONS
D2PAK
D2T SUFFIX
CASE 93603
ISSUE D
5 REF5 REF
V
U
TERMINAL 4
NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCHES. 3. TAB CONTOUR OPTIONAL WITHIN
DIMENSIONS A AND K. 4. DIMENSIONS U AND V ESTABLISH A MINIMUM
MOUNTING SURFACE FOR TERMINAL 4. 5. DIMENSIONS A AND B DO NOT INCLUDE
MOLD FLASH OR GATE PROTRUSIONS. MOLD
FLASH AND GATE PROTRUSIONS NOT TO
EXCEED 0.025 (0.635) MAXIMUM. 6. SINGLE GAUGE DESIGN WILL BE SHIPPED
AFTER FPCN EXPIRATION IN OCTOBER 2011.
DIMAMIN MAX MIN MAX
MILLIMETERS
0.386 0.403 9.804 10.236
INCHES
B 0.356 0.368 9.042 9.347 C 0.170 0.180 4.318 4.572 D 0.026 0.036 0.660 0.914 E 0.045 0.055 1.143 1.397
F 0.051 REF 1.295 REF
G 0.100 BSC 2.540 BSC
H 0.539 0.579 13.691 14.707 J 0.125 MAX 3.175 MAX K 0.050 REF 1.270 REF L 0.000 0.010 0.000 0.254
M 0.088 0.102 2.235 2.591
N 0.018 0.026 0.457 0.660 P 0.058 0.078 1.473 1.981 R S 0.116 REF 2.946 REF U 0.200 MIN 5.080 MIN V 0.250 MIN 6.350 MIN
__
A
12 3
K
F
B
J
S
H
D
M
0.010 (0.254) T
E
OPTIONAL CHAMFER
*For additional information on our PbFree strategy and soldering
details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D.
SOLDERING FOOTPRINT*
8.380
5.080
DIMENSIONS: MILLIMETERS
PITCH
2X
16.155
1.016
2X
10.490
3.504
BOTTOM VIEW
OPTIONAL CONSTRUCTIONS
TOP VIEW
SIDE VIEW
DUAL GAUGE
BOTTOM VIEW
L
T
P
R
DETAIL C
SEATING PLANE
2X
G
N
M
CONSTRUCTION
D
C
DETAIL C
E
OPTIONAL CHAMFER
SIDE VIEW
SINGLE GAUGE
CONSTRUCTION
S
C
DETAIL C
TT
D
E 0.018 0.026 0.457 0.660
S
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MC7900 Series
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16
PACKAGE DIMENSIONS
TO−220, SINGLE GAUGE
T SUFFIX
CASE 221AB
ISSUE A
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCHES.
3. DIMENSION Z DEFINES A ZONE WHERE ALL BODY AND LEAD IRREGULARITIES ARE ALLOWED.
4. PRODUCT SHIPPED PRIOR TO 2008 HAD DIMENSIONS S = 0.045 - 0.055 INCHES (1.143 - 1.397 MM)
DIM MIN MAX MIN MAX
MILLIMETERSINCHES
A 0.570 0.620 14.48 15.75 B 0.380 0.405 9.66 10.28 C 0.160 0.190 4.07 4.82 D 0.025 0.035 0.64 0.88
F 0.142 0.147 3.61 3.73 G 0.095 0.105 2.42 2.66 H 0.110 0.155 2.80 3.93
J 0.018 0.025 0.46 0.64 K 0.500 0.562 12.70 14.27
L 0.045 0.060 1.15 1.52 N 0.190 0.210 4.83 5.33 Q 0.100 0.120 2.54 3.04 R 0.080 0.110 2.04 2.79
S 0.020 0.024 0.508 0.61
T 0.235 0.255 5.97 6.47 U 0.000 0.050 0.00 1.27
V 0.045 --- 1.15 ---
Z --- 0.080 --- 2.04
B
Q
H
Z
L
V
G
N
A
K
F
123
4
D
SEATING PLANE
T
C
S
T
U
R
J
ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC owns the rights to a number of patents, trademarks,
copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/PatentMarking.pdf. SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC 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 SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
PUBLICATION ORDERING INFORMATION
N. American Technical Support: 8002829855 Toll Free
USA/Canada
Europe, Middle East and Africa Technical Support:
Phone: 421 33 790 2910
Japan Customer Focus Center
Phone: 81−3−58171050
MC7900/D
LITERATURE FULFILLMENT:
Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado 80217 USA
Phone: 3036752175 or 8003443860 Toll Free USA/Canada Fax: 3036752176 or 8003443867 Toll Free USA/Canada Email: orderlit@onsemi.com
ON Semiconductor Website: www.onsemi.com
Order Literature: http://www.onsemi.com/orderlit
For additional information, please contact your local Sales Representative
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