MOTOROLA MC79M12BDT-1 Three-terminal negative fixed voltage regulator Datasheet

Order this document by MC79M00/D
The MC79M00 series of fixed output negative voltage regulators are
intended as complements to the popular MC78M00 series devices.
Available in fixed output voltage options of –5.0, –8.0, –12 and –15 V,
these regulators employ current limiting, thermal shutdown, and safe–area
compensation – making them remarkably rugged under most operating
conditions. With adequate heatsinking they can deliver output currents in
excess of 0.5 A.
• No External Components Required
•
•
•
•
THREE–TERMINAL
NEGATIVE FIXED
VOLTAGE REGULATORS
Internal Thermal Overload Protection
Internal Short Circuit Current Limiting
T SUFFIX
PLASTIC PACKAGE
CASE 221A
Output Transistor Safe–Area Compensation
Also Available in Surface Mount DPAK (DT) Package
Heatsink surface
connected to Pin 2.
DEVICE TYPE/NOMINAL OUTPUT VOLTAGE
MC79M05
MC79M08
–5.0 V
–8.0 V
MC79M12
MC79M15
–12 V
–15 V
1
2
ORDERING INFORMATION
Output
Voltage
Tolerance
Device
3
Pin 1. Ground
2. Input
3. Output
Operating
Temperature Range
Package
MC79MXXBDT, BDT–1
DPAK
TJ = – 40° to +125°C
MC79MXXBT
Plastic Power
4.0%
4
0%
MC79MXXCDT, CDT–1
DPAK
TJ = 0° to +125°C
MC79MXXCT
Plastic Power
XX indicates nominal voltage.
1
1
3
DT SUFFIX
PLASTIC PACKAGE
CASE 369A
(DPAK)
2
3
DT–1 SUFFIX
PLASTIC PACKAGE
CASE 369
(DPAK)
Heatsink surface (shown as terminal 4 in
case outline drawing) is connected to Pin 2.
Representative Schematic Diagram
11.5 k
4.0 k
MC79MXX
Output
R1
Cin*
0.33 µF
2.0 k
4.9 k
1.0 k
12 k
1.2 k
STANDARD APPLICATION
Input
547
2.0 k
2.0 k
14.7 k
3.6 k
25
2.4 k
Gnd
CO**
1.0 µF
R2
VO
10 k
20 pF
10 pF 10 k
2.0 k
20 k 20 k
1.1 k
240
0.3
100
750
This device contains 31 active transistors.
VI
A common ground is required between the input
and the output voltages. The input voltage must
remain typically 1.1 V more negative even during
the high point of the input ripple voltage.
XX, These two digits of the type number indicate
nominal voltage.
* Cin is required if regulator is located an
appreciable distance from power supply filter.
** CO improve stability and transient response.
 Motorola, Inc. 1996
MOTOROLA ANALOG IC DEVICE DATA
Rev 4
1
MC79M00
MAXIMUM RATINGS (TA = 25°C, unless otherwise noted.)
Rating
Symbol
Value
Unit
VI
–35
Vdc
PD
θJA
θJC
Internally Limited
65
5.0
W
°C/W
°C/W
PD
θJA
θJC
Internally Limited
92
6.0
W
°C/W
°C/W
Tstg
–65 to +150
°C
TJ
150
°C
Symbol
Value
Unit
Thermal Resistance, Junction–to–Ambient
RθJA
65
°C/W
Thermal Resistance, Junction–to–Case
RθJC
5.0
°C/W
Input Voltage
Power Dissipation
Case 221A
TA = 25°C
Thermal Resistance, Junction–to–Ambient
Thermal Resistance, Junction–to–Case
Case 369 and 369A (DPAK)
TA = 25°C
Thermal Resistance, Junction–to–Ambient
Thermal Resistance, Junction–to–Case
Storage Junction Temperature
Junction Temperature
NOTE: ESD data available upon request.
THERMAL CHARACTERISTICS
Characteristic
MC79M05B, C
ELECTRICAL CHARACTERISTICS (VI = –10 V, IO = 350 mA, Tlow to Thigh [Note 2], unless otherwise noted.)
Characteristic
Output Voltage (TJ = 25°C)
Symbol
Min
Typ
Max
Unit
VO
–4.8
–5.0
–5.2
Vdc
–
–
7.0
2.0
50
30
–
30
100
–4.75
–
–5.25
–
4.3
8.0
–
–
–
–
0.4
0.4
Line Regulation, TJ = 25°C (Note 1)
–7.0 Vdc ≥ VI ≥ –25 Vdc
–8.0 Vdc ≥ VI ≥ –18 Vdc
Regline
Load Regulation, TJ = 25°C (Note 1)
5.0 mA ≤ IO ≤ 500 mA
Regload
Output Voltage
–7.0 Vdc ≥ VI ≥ –25 Vdc, 5.0 mA ≤ IO ≤ 350 mA
VO
Input Bias Current (TJ = 25°C)
IIB
Input Bias Current Change
–8.0 Vdc ≥ VI ≥ –25 Vdc, IO = 350 mA
5.0 mA ≤ IO ≤ 350 mA, VI = –10 V
mV
mV
Vdc
∆IIB
mA
mA
Output Noise Voltage, TA = 25°C, 10 Hz ≤ f ≤ 100 kHz
Vn
–
40
–
µV
Ripple Rejection (f = 120 Hz)
RR
54
66
–
dB
–
1.1
–
–
0.2
–
Dropout Voltage
IO = 500 mA, TJ = 25°C
Average Temperature Coefficient of Output Voltage
IO = 5.0 mA, 0°C ≤ TJ ≤ 125°C
VI–VO
Vdc
∆VO/∆T
mV/°C
NOTES: 1. Load and line regulation are specified at constant temperature. Change in VO due to heating effects must be taken into account separately. Pulse
testing with low duty cycle is used.
2. B = Tlow to Thigh, –40°C < TJ < 125°C
C = Tlow to Thigh, 0°C < TJ < 125°C
2
MOTOROLA ANALOG IC DEVICE DATA
MC79M00
MC79M08B, C
ELECTRICAL CHARACTERISTICS (VI = –10 V, IO = 350 mA, Tlow to Thigh [Note 2], unless otherwise noted.)
Characteristic
Output Voltage (TJ = 25°C)
Symbol
Min
Typ
Max
Unit
VO
–7.7
–8.0
–8.3
Vdc
–
–
5.0
3.0
80
50
–
30
100
–7.6
–8.0
–8.4
–
–
8.0
–
–
–
–
0.4
0.4
Line Regulation, TJ = 25°C (Note 1)
–7.0 Vdc ≥ VI ≥ –25 Vdc
–8.0 Vdc ≥ VI ≥ –18 Vdc
Regline
Load Regulation, TJ = 25°C (Note 1)
5.0 mA ≤ IO ≤ 500 mA
Regload
Output Voltage
–7.0 Vdc ≥ VI ≥ –25 Vdc, 5.0 mA ≤ IO ≤ 350 mA
Input Bias Current (TJ = 25°C)
mV
VO
IIB
Input Bias Current Change
–8.0 Vdc ≥ VI ≥ –25 Vdc, IO = 350 mA
5.0 mA ≤ IO ≤ 350 mA, VI = –10 V
mV
Vdc
∆IIB
mA
mA
Output Noise Voltage, TA = 25°C, 10 Hz ≤ f ≤ 100 kHz
Vn
–
60
–
µV
Ripple Rejection (f = 120 Hz)
RR
54
63
–
dB
–
1.1
–
–
0.4
–
Dropout Voltage
IO = 500 mA, TJ = 25°C
VI–VO
Average Temperature Coefficient of Output Voltage
IO = 5.0 mA, 0°C ≤ TJ ≤ 125°C
Vdc
∆VO/∆T
mV/°C
MC79M12B, C
ELECTRICAL CHARACTERISTICS (VI = –19 V, IO = 350 mA, Tlow to Thigh [Note 2], unless otherwise noted.)
Characteristic
Output Voltage (TJ = 25°C)
Symbol
Min
Typ
Max
Unit
VO
–11.5
–12
–12.5
Vdc
–
–
5.0
3.0
80
50
–
30
240
–11.4
–
–12.6
–
4.4
8.0
–
–
–
–
0.4
0.4
Line Regulation, TJ = 25°C (Note 1)
–14.5 Vdc ≥ VI ≥ –30 Vdc
–15 Vdc ≥ VI ≥ –25 Vdc
Regline
Load Regulation, TJ = 25°C (Note 1)
5.0 mA ≤ IO ≤ 500 mA
Regload
Output Voltage
–14.5 Vdc ≥ VI ≥ –30 Vdc, 5.0 mA ≤ IO ≤ 350 mA
VO
Input Bias Current (TJ = 25°C)
IIB
Input Bias Current Change
–14.5 Vdc ≥ VI ≥ –30 Vdc, IO = 350 mA
5.0 mA ≤ IO ≤ 350 mA, VI = –19 V
mV
mV
Vdc
∆IIB
mA
mA
Output Noise Voltage, TA = 25°C, 10 Hz ≤ f ≤ 100 kHz
Vn
–
75
–
µV
Ripple Rejection (f = 120 Hz)
RR
54
60
–
dB
–
1.1
–
–
–0.8
–
Dropout Voltage
IO = 500 mA, TJ = 25°C
Average Temperature Coefficient of Output Voltage
IO = 5.0 mA, 0°C ≤ TJ ≤ 125°C
VI–VO
Vdc
∆VO/∆T
mV/°C
NOTES: 1. Load and line regulation are specified at constant temperature. Change in VO due to heating effects must be taken into account separately. Pulse
testing with low duty cycle is used.
2. B = Tlow to Thigh, –40°C < TJ < 125°C
C = Tlow to Thigh, 0°C < TJ < 125°C
MOTOROLA ANALOG IC DEVICE DATA
3
MC79M00
MC79M15B, C
ELECTRICAL CHARACTERISTICS (VI = – 23 V, IO = 350 mA, Tlow to Thigh [Note 2], unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
VO
–14.4
–15
–15.6
Vdc
–
–
5.0
3.0
80
50
–
30
240
–14.25
–
–15.75
–
4.4
8.0
–
–
–
–
0.4
0.4
Output Voltage (TJ = 25°C)
Line Regulation, TJ = 25°C (Note 1)
–17.5 Vdc ≥ VI ≥ –30 Vdc
–18 Vdc ≥ VI ≥ –28 Vdc
Regline
Load Regulation, TJ = 25°C (Note 1)
5.0 mA ≤ IO ≤ 500 mA
Regload
Output Voltage
–17.5 Vdc ≥ VI ≥ –30 Vdc, 5.0 mA ≤ IO ≤ 350 mA
mV
mV
VO
Input Bias Current (TJ = 25°C)
Vdc
IIB
∆IIB
Input Bias Current Change
–17.5 Vdc ≥ VI ≥ –30 Vdc, IO = 350 mA
5.0 mA ≤ IO ≤ 350 mA, VI = –23 V
mA
mA
Output Noise Voltage, TA = 25°C, 10 Hz ≤ f ≤ 100 kHz
Vn
–
90
–
µV
Ripple Rejection (f = 120 Hz)
RR
54
60
–
dB
–
1.1
–
–
–1.0
–
Dropout Voltage
IO = 500 mA, TJ = 25°C
VI–VO
Vdc
∆VO/∆T
Average Temperature Coefficient of Output Voltage
IO = 5.0 mA, 0°C ≤ TJ ≤ 125°C
mV/°C
NOTES: 1. Load and line regulation are specified at constant temperature. Change in VO due to heating effects must be taken into account separately. Pulse
testing with low duty cycle is used.
2. B = Tlow to Thigh, –40°C < TJ < 125°C
C = Tlow to Thigh, 0°C < TJ < 125°C
JUNCTION-TO-AIR (°C/W)
R θ JA, THERMAL RESISTANCE
100
90
2.0
ÎÎÎÎ
ÎÎÎÎ
ÎÎÎÎ
80
Minimum
Size Pad
70
2.4
PD(max) for TA = 50°C
Free Air
Mounted
Vertically
60
2.0 oz. Copper
L
1.6
L
1.2
0.8
50
0.4
RθJA
40
PD, MAXIMUM POWER DISSIPATION (W)
Figure 1. DPAK Thermal Resistance and Maximum
Power Dissipation versus P.C.B. Copper Length
0
0
5.0
10
15
20
25
30
L, LENGTH OF COPPER (mm)
4
MOTOROLA ANALOG IC DEVICE DATA
MC79M00
OUTLINE DIMENSIONS
T SUFFIX
PLASTIC PACKAGE
CASE 221A–06
ISSUE Y
–T–
B
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. DIMENSION Z DEFINES A ZONE WHERE ALL
BODY AND LEAD IRREGULARITIES ARE
ALLOWED.
SEATING
PLANE
C
F
T
S
4
DIM
A
B
C
D
F
G
H
J
K
L
N
Q
R
S
T
U
V
Z
A
Q
1 2 3
U
H
K
Z
L
R
V
J
G
D
N
INCHES
MIN
MAX
0.570
0.620
0.380
0.405
0.160
0.190
0.025
0.035
0.142
0.147
0.095
0.105
0.110
0.155
0.018
0.025
0.500
0.562
0.045
0.060
0.190
0.210
0.100
0.120
0.080
0.110
0.045
0.055
0.235
0.255
0.000
0.050
0.045
–––
–––
0.080
MILLIMETERS
MIN
MAX
14.48
15.75
9.66
10.28
4.07
4.82
0.64
0.88
3.61
3.73
2.42
2.66
2.80
3.93
0.46
0.64
12.70
14.27
1.15
1.52
4.83
5.33
2.54
3.04
2.04
2.79
1.15
1.39
5.97
6.47
0.00
1.27
1.15
–––
–––
2.04
DT SUFFIX
PLASTIC PACKAGE
CASE 369A–13
(DPAK)
ISSUE Y
–T–
C
B
V
E
R
4
Z
A
S
1
2
3
U
K
F
J
L
H
D
G
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
SEATING
PLANE
2 PL
0.13 (0.005)
M
MOTOROLA ANALOG IC DEVICE DATA
DIM
A
B
C
D
E
F
G
H
J
K
L
R
S
U
V
Z
INCHES
MIN
MAX
0.235
0.250
0.250
0.265
0.086
0.094
0.027
0.035
0.033
0.040
0.037
0.047
0.180 BSC
0.034
0.040
0.018
0.023
0.102
0.114
0.090 BSC
0.175
0.215
0.020
0.050
0.020
–––
0.030
0.050
0.138
–––
MILLIMETERS
MIN
MAX
5.97
6.35
6.35
6.73
2.19
2.38
0.69
0.88
0.84
1.01
0.94
1.19
4.58 BSC
0.87
1.01
0.46
0.58
2.60
2.89
2.29 BSC
4.45
5.46
0.51
1.27
0.51
–––
0.77
1.27
3.51
–––
T
5
MC79M00
OUTLINE DIMENSIONS
DT–1 SUFFIX
PLASTIC PACKAGE
CASE 369–07
(DPAK)
ISSUE K
C
B
V
E
R
4
A
1
2
3
S
–T–
K
SEATING
PLANE
J
F
H
D
G
6
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
DIM
A
B
C
D
E
F
G
H
J
K
R
S
V
INCHES
MIN
MAX
0.235
0.250
0.250
0.265
0.086
0.094
0.027
0.035
0.033
0.040
0.037
0.047
0.090 BSC
0.034
0.040
0.018
0.023
0.350
0.380
0.175
0.215
0.050
0.090
0.030
0.050
MILLIMETERS
MIN
MAX
5.97
6.35
6.35
6.73
2.19
2.38
0.69
0.88
0.84
1.01
0.94
1.19
2.29 BSC
0.87
1.01
0.46
0.58
8.89
9.65
4.45
5.46
1.27
2.28
0.77
1.27
3 PL
0.13 (0.005)
M
T
MOTOROLA ANALOG IC DEVICE DATA
MC79M00
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
specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters which may be provided in Motorola
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. Motorola does not convey any license under its patent rights nor the rights of
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Motorola was negligent regarding the design or manufacture of the part. Motorola and
are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal
Opportunity/Affirmative Action Employer.
MOTOROLA ANALOG IC DEVICE DATA
7
MC79M00
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8
◊
*MC79M00/D*
MOTOROLA ANALOG IC DEVICE
DATA
MC79M00/D
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