ON MC79L12ACP 100 ma negative voltage regulator Datasheet

ON Semiconductor
MC79L00,
MC79L00A Series
100 mA Negative Voltage
Regulators
The MC79L00, A Series negative voltage regulators are
inexpensive, easy–to–use devices suitable for numerous applications
requiring up to100 mA. Like the higher powered MC7900 Series
negative regulators, this series features thermal shutdown and current
limiting, making them remarkably rugged. In most applications, no
external components are required for operation.
The MC79L00 devices are useful for on–card regulation or any
other application where a regulated negative voltage at a modest
current level is needed. These regulators offer substantial advantage
over the common resistor/zener diode approach.
• No External Components Required
• Internal Short Circuit Current Limiting
• Internal Thermal Overload Protection
• Low Cost
• Complementary Positive Regulators Offered (MC78L00 Series)
• Available in Either ±5% (AC) or ±10% (C) Selections
THREE–TERMINAL LOW
CURRENT NEGATIVE FIXED
VOLTAGE REGULATORS
SEMICONDUCTOR
TECHNICAL DATA
P SUFFIX
PLASTIC PACKAGE
CASE 29
Pin 1. Ground
2. Input
3. Output
1
Representative Schematic Diagram
R
5
R18
R1
Gnd
R8
R6
3
Vout
Vin
Vin
NC
5.
6.
7.
8.
GND
Vin
Vin
NC
*SOP–8 is an internally modified SO–8 package.
Pins 2, 3, 6, and 7 are electrically common to the
die attach flag. This internal lead frame modification decreases package thermal resistance and
increases power dissipation capability when
appropriately mounted on a printed circuit board.
SOP–8 conforms to all external dimensions of the
standard SO–8 package.
Q10
Q5
R9
R17
Q4
R7
Q8
Q14
Q9
Q1
2
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SOP–8)*
8
Pin 1.
2.
3.
4.
1
R16
R4
Z1
R3
Output
Q12
R2
C
Q6
R10
Q13
Q2
R11
Q7
Q11
R14
Device No.
5%
Nominal
Voltage
MC79L05C
MC79L12C
MC79L15C
MC79L18C
MC79L24C
MC79L05AC
MC79L12AC
MC79L15AC
MC79L18AC
MC79L24AC
–5.0
–12
–15
–18
–24
ORDERING INFORMATION
Device
R15
Operating
Temperature Range
Package
TJ = 0° to +125°C
Plastic Power
MC79LXXACD*
Input
*Automotive temperature range selections are available with special test conditions
and additional tests in 5, 12 and 15 V devices. Contact your local ON Semiconductor
sales office for information.
Device No.
±10%
MC79LXXACP
SOP–8
MC79LXXCP
Plastic Power
MC79LXXABD*
MC79LXXABP*
SOP–8
TJ = –40° to +125°C
Plastic Power
XX indicates nominal voltage
 Semiconductor Components Industries, LLC, 2002
January, 2002 – Rev. 4
1
Publication Order Number:
MC79L00/D
MC79L00, MC79L00A Series
MAXIMUM RATINGS (TA = +25°C, unless otherwise noted.)
Rating
Symbol
Value
Unit
VI
–30
–35
–40
Vdc
Storage Temperature Range
Tstg
–65 to +150
°C
Junction Temperature
TJ
+150
°C
Input Voltage (–5 V)
Input Voltage (–12, –15, –18 V)
Input Voltage (–24 V)
ELECTRICAL CHARACTERISTICS (VI = –10 V, IO = 40 mA, CI = 0.33 µF, CO = 0.1 µF, –40°C < TJ +125°C (for MC79LXXAB),
0°C < TJ < +125°C (for MC79LXXAC)).
MC79L05C, AB
Characteristics
Output Voltage (TJ = +25°C)
MC79L05AC, AB
Symbol
Min
Typ
Max
Min
Typ
Max
Unit
VO
–4.6
–5.0
–5.4
–4.8
–5.0
–5.2
Vdc
–
–
–
–
200
150
–
–
–
–
150
100
–
–
–
–
60
30
–
–
–
–
60
30
–4.5
–4.5
–
–
–5.5
–5.5
–4.75
–4.75
–
–
–5.25
–5.25
–
–
–
–
6.0
5.5
–
–
–
–
6.0
5.5
–
–
–
–
1.5
0.2
–
–
–
–
1.5
0.1
Input Regulation (TJ = +25°C)
–7.0 Vdc ≥ VI ≥ –20 Vdc
–8.0 Vdc ≥ VI ≥ –20 Vdc
Regline
Load Regulation
TJ = +25°C, 1.0 mA ≤ IO ≤ 100 mA
1.0 mA ≤ IO ≤ 40 mA
Regload
mV
mV
Output Voltage
–7.0 Vdc ≥ VI ≥ –20 Vdc, 1.0 mA ≤ IO ≤ 40 mA
VI = –10 Vdc, 1.0 mA ≤ IO ≤ 70 mA
VO
Input Bias Current
(TJ = +25°C)
(TJ = +125°C)
IIB
Input Bias Current Change
–8.0 Vdc ≥ VI ≥ –20 Vdc
1.0 mA ≤ IO ≤ 40 mA
IIB
Output Noise Voltage
(TA = +25°C, 10 Hz ≤ f ≤ 100 kHz)
Vn
–
40
–
–
40
–
µV
Ripple Rejection
(–8.0 ≥ VI ≥ –18 Vdc, f = 120 Hz, TJ = +25°C)
RR
40
49
–
41
49
–
dB
|VI–VO|
–
1.7
–
–
1.7
–
Vdc
Dropout Voltage (IO = 40 mA, TJ = +25°C)
Vdc
mA
mA
ELECTRICAL CHARACTERISTICS (VI = –19 V, IO = 40 mA, CI = 0.33 µF, CO = 0.1 µF, –40°C < TJ +125°C (for MC79LXXAC),
0°C < TJ < +125°C (for MC79LXXAB)).
MC79L12C, AB
Characteristics
MC79L12AC, AB
Symbol
Min
Typ
Max
Min
Typ
Max
Unit
Output Voltage (TJ = +25°C)
VO
–11.1
–12
–12.9
–11.5
–12
–12.5
Vdc
Input Regulation
(TJ = +25°C)
–14.5 Vdc ≥ VI ≥ –27 Vdc
–16 Vdc ≥ VI ≥ –27 Vdc
Regline
Load Regulation
TJ = +25°C, 1.0 mA ≤ IO ≤ 100 mA
1.0 mA ≤ IO ≤ 40 mA
Regload
mV
–
–
–
–
250
200
–
–
–
–
250
200
–
–
–
–
100
50
–
–
–
–
100
50
–10.8
–10.8
–
–
–13.2
–13.2
–11.4
–11.4
–
–
–12.6
–12.6
–
–
–
–
6.5
6.0
–
–
–
–
6.5
6.0
–
–
–
–
1.5
0.2
–
–
–
–
1.5
0.2
mV
Output Voltage
–14.5 Vdc ≥ VI ≥ –27 Vdc, 1.0 mA ≤ IO ≤ 40 mA
VI = –19 Vdc, 1.0 mA ≤ IO ≤ 70 mA
VO
Input Bias Current
(TJ = +25°C)
(TJ = +125°C)
IIB
Input Bias Current Change
–16 Vdc ≥ VI ≥ –27 Vdc
1.0 mA ≤ IO ≤ 40 mA
IIB
Output Noise Voltage
(TA = +25°C, 10 Hz ≤ f ≤ 100 kHz)
Vn
–
80
–
–
80
–
µV
Ripple Rejection
(–15 ≤ VI ≤ –25 Vdc, f = 120 Hz, TJ = +25°C)
RR
36
42
–
37
42
–
dB
|VI–VO|
–
1.7
–
–
1.7
–
Vdc
Dropout Voltage (IO = 40 mA, TJ = +25°C)
Vdc
mA
mA
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2
MC79L00, MC79L00A Series
ELECTRICAL CHARACTERISTICS (VI = –23 V, IO = 40 mA, CI = 0.33 µF, CO = 0.1 µF, –40°C < TJ +125°C (for MC79LXXAB),
0°C < TJ < +125°C (for MC79LXXAC)).
MC79L15C
Characteristics
MC79L15AC, AB
Symbol
Min
Typ
Max
Min
Typ
Max
Unit
Output Voltage (TJ = +25°C)
VO
–13.8
–15
–16.2
–14.4
–15
–15.6
Vdc
Input Regulation
(TJ = +25°C)
–17.5 Vdc ≥ VI ≥ –30 Vdc
–20 Vdc ≥ VI ≥ –30 Vdc
Regline
Load Regulation
TJ = +25°C, 1.0 mA ≤ IO ≤ 100 mA
1.0 mA ≤ IO ≤ 40 mA
Regload
mV
–
–
–
–
300
250
–
–
–
–
300
250
–
–
–
–
150
75
–
–
–
–
150
75
–13.5
–13.5
–
–
–16.5
–16.5
–14.25
–14.25
–
–
–15.75
–15.75
–
–
–
–
6.5
6.0
–
–
–
–
6.5
6.0
–
–
–
–
1.5
0.2
–
–
–
–
1.5
0.1
mV
Output Voltage
–17.5 Vdc ≥ VI ≥ –Vdc, 1.0 mA ≤ IO ≤ 40 mA
VI = –23 Vdc, 1.0 mA ≤ IO ≤ 70 mA
VO
Input Bias Current
(TJ = +25°C)
(TJ = +125°C)
IIB
Input Bias Current Change
–20 Vdc ≥ VI ≥ –30 Vdc
1.0 mA ≤ IO ≤ 40 mA
∆IIB
Output Noise Voltage
(TA = +25°C, 10 Hz ≤ f ≤ 100 kHz)
VN
–
90
–
–
90
–
µV
Ripple Rejection
(–18.5 ≤ VI ≤ –28.5 Vdc, f = 120 Hz)
RR
33
39
–
34
39
–
dB
|VI–VO|
–
1.7
–
–
1.7
–
Vdc
Dropout Voltage
IO = 40 mA, TJ = +25°C
Vdc
mA
mA
ELECTRICAL CHARACTERISTICS (VI = –27 V, IO = 40 mA, CI = 0.33 µF, CO = 0.1 µF, 0°C < TJ > +125°C, unless otherwise noted).
MC79L18C
Characteristics
MC79L18AC
Symbol
Min
Typ
Max
Min
Typ
Max
Unit
Output Voltage (TJ = +25°C)
VO
–16.6
–18
–19.4
–17.3
–18
–18.7
Vdc
Input Regulation
(TJ = +25°C)
–20.7 Vdc ≥ VI ≥ –33 Vdc
–21.4 Vdc ≥ VI ≥ –33 Vdc
–22 Vdc ≥ VI ≥ –33 Vdc
–21 Vdc ≥ VI ≥ –33 Vdc
Regline
Load Regulation
TJ = +25°C, 1.0 mA ≤ IO ≤ 100 mA
1.0 mA ≤ IO ≤ 40 mA
Regload
mV
–
–
–
–
–
–
–
–
–
325
275
–
–
–
–
–
–
–
–
–
325
–
–
275
–
–
–
–
170
85
–
–
–
–
170
85
–
–
–
–
–19.8
–19.8
–17.1
–
–17.1
–
–
–
–18.9
–
–18.9
–
–
–
–
6.5
6.0
–
–
–
–
6.5
6.0
–
–
–
–
–
–
–
1.5
0.2
–
–
–
–
–
–
1.5
–
0.1
mV
Output Voltage
–20.7 Vdc ≥ VI ≥ –33 Vdc, 1.0 mA ≤ IO ≤ 40 mA
–21.4 Vdc ≥ VI ≥ –33 Vdc, 1.0 mA ≤ IO ≤ 40 mA
VI = –27 Vdc, 1.0 mA ≤ IO ≤ 70 mA
VO
Input Bias Current
(TJ = +25°C)
(TJ = +125°C)
IIB
Input Bias Current Change
–21 Vdc ≥ VI ≥ –33 Vdc
–27 Vdc ≥ VI ≥ –33 Vdc
1.0 mA ≤ IO ≤ 40 mA
IIB
Output Noise Voltage
(TA = +25°C, 10 Hz ≤ f ≤ 100 kHz)
Vn
–
150
–
–
150
–
µV
Ripple Rejection
(–23 ≤ VI ≤ –33 Vdc, f = 120 Hz, TJ = +25°C)
RR
32
46
–
33
48
–
dB
|VI–VO|
–
1.7
–
–
1.7
–
Vdc
Dropout Voltage
IO = 40 mA, TJ = +25°C
Vdc
–
–16.2
–16.2
mA
mA
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3
MC79L00, MC79L00A Series
ELECTRICAL CHARACTERISTICS (VI = –33 V, IO = 40 mA, CI = 0.33 µF, CO = 0.1 µF, 0°C < TJ < +125°C, unless otherwise noted).
MC79L24C
Characteristics
MC79L24AC
Symbol
Min
Typ
Max
Min
Typ
Max
Unit
Output Voltage (TJ = +25°C)
VO
–22.1
–24
–25.9
–23
–24
–25
Vdc
Input Regulation
(TJ = +25°C)
–27 Vdc ≥ VI ≥ –38 Vdc
–27.5 Vdc ≥ VI ≥ –38 Vdc
–28 Vdc ≥ VI ≥ –38 Vdc
Regline
Load Regulation
TJ = +25°C, 1.0 mA ≤ IO ≤ 100 mA
1.0 mA ≤ IO ≤ 40 mA
Regload
mV
–
–
–
–
–
–
–
350
300
–
–
–
–
–
–
350
–
300
–
–
–
–
200
100
–
–
–
–
200
100
–
–21.4
–21.4
–
–
–
–
–26.4
–26.4
–22.8
–
–22.8
–
–
–
–25.2
–
–25.2
–
–
–
–
6.5
6.0
–
–
–
–
6.5
6.0
–
–
–
–
1.5
0.2
–
–
–
–
1.5
0.1
mV
Output Voltage
–27 Vdc ≥ VI ≥ –38 V, 1.0 mA ≤ IO ≤ 40 mA
–28 Vdc ≥ VI ≥ –38 Vdc, 1.0 mA ≤ IO ≤ 40 mA
VI = –33 Vdc, 1.0 mA ≤ IO ≤ 70 mA
VO
Input Bias Current
(TJ = +25°C)
(TJ = +125°C)
IIB
Input Bias Current Change
–28 Vdc ≥ VI ≥ –38 Vdc
1.0 mA ≤ IO ≤ 40 mA
∆IIB
Output Noise Voltage
(TA = +25°C, 10 Hz ≤ f ≤ 100 kHz)
Vn
–
200
–
–
200
–
µV
Ripple Rejection
(–29 ≤ VI ≤ –35 Vdc, f = 120 Hz, TJ = +25°C)
RR
30
43
–
31
47
–
dB
|VI–VO|
–
1.7
–
–
1.7
–
Vdc
Dropout Voltage
IO = 40 mA, TJ = +25°C
Vdc
mA
mA
APPLICATIONS INFORMATION
Design Considerations
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. Bypassing the output is also
recommended.
The MC79L00, A Series of fixed voltage regulators are
designed with Thermal Overload Protections 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.
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 length, or if the output load capacitance is large. An
input bypass capacitor should be selected to provide good
+Vin
MC78LXX
Input
+VO
CI*
0.33µF
0.1µF
0.33µF
MC79LXX
Output
CO**
0.1µF
0.1µF
-Vin
MC79LXX
A common ground is required between the input and the output
voltages. The input voltage must remain typically 2.0 V above
the output voltage even during the low point on the ripple voltage.
-VO
0.33µF
* CI is required if regulator is located an appreciable
* distance from the power supply filter
** CO improves stability and transient response.
Figure 1. Positive and Negative Regulator
Figure 2. Standard Application
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4
MC79L00, MC79L00A Series
TYPICAL CHARACTERISTICS
(TA = +25°C, unless otherwise noted.)
V I -V O , INPUT/OUTPUT DIFFERENTIAL
VOLTAGE (V)
MC79L05C
VO = -5.0 V
TJ = 25°C
6.0
IO = 1.0 mA
4.0
2.0
IO = 100 mA
IO = 40 mA
0
0
-2.0
-4.0
-6.0
Vin, INPUT VOLTAGE (V)
-0.8
-10
-2.5
-2.0
IO = 70 mA
IO = 40 mA
-1.5
IO = 1.0 mA
-1.0
Dropout of Regulation is
defined when
∆VO = 2% of VO
-0.5
0
0
25
Figure 3. Dropout Characteristics
I IB , INPUT BIAS CURRENT (mA)
5.0
4.0
3.8
3.6
3.4
MC79L05C
Vin = -10 V
VO = -5.0 V
IO = 40 mA
3.2
3.0
0
0
25
50
75
100
TA, AMBIENT TEMPERATURE (°C)
4.0
3.0
2.0
1.0
0
125
MC79L05C
VO = -5.0 V
IO = 40 mA
0
-5.0
Figure 5. Input Bias Current versus
Ambient Temperature
-10
-15
-20
-25
-30
Vin, INPUT VOLTAGE (V)
170
RθJA , THERMAL RESISTANCE
JUNCTION-TO-AIR (°C/W)
1,000
100
RΘJA = 200°C/W
PD(max) to 25°C = 625 mW
50
75
100
125
TA, AMBIENT TEMPERATURE (°C)
2.8
PD(max) for TA = +50°C
130
No Heatsink
25
-40
3.2
150
P D , POWER DISSIPATION (mW)
-35
Figure 6. Input Bias Current versus
Input Voltage
10,000
10
125
Figure 4. Dropout Voltage versus
Junction Temperature
4.2
I IB , INPUT BIAS CURRENT (mA)
50
75
100
TJ, JUNCTION TEMPERATURE (°C)
110
ÎÎÎ
ÎÎÎ
ÎÎÎ
ÎÎÎ
ÎÎÎ
ÎÎÎ
Graph represents symmetrical layout
90
L
70
2.0 oz.
Copper
L
50
30
150
2.4
3.0 mm
RθJA
0
10
20
30
L, LENGTH OF COPPER (mm)
40
2.0
1.6
1.2
0.8
0.4
50
Figure 8. SOP–8 Thermal Resistance and Maximum
Power Dissipation versus P.C.B. Copper Length
Figure 7. Maximum Average Power Dissipation
versus Ambient Temperature (TO–92)
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5
PD, MAXIMUM POWER DISSIPATION (W)
VO, OUTPUT VOLTAGE (V)
8.0
MC79L00, MC79L00A Series
PACKAGE DIMENSIONS
P SUFFIX
PLASTIC PACKAGE
CASE 29–11
ISSUE AL
A
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. CONTOUR OF PACKAGE BEYOND DIMENSION R
IS UNCONTROLLED.
4. LEAD DIMENSION IS UNCONTROLLED IN P AND
BEYOND DIMENSION K MINIMUM.
B
R
P
L
SEATING
PLANE
K
DIM
A
B
C
D
G
H
J
K
L
N
P
R
V
D
X X
G
J
H
V
C
SECTION X–X
1
N
N
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6
INCHES
MIN
MAX
0.175
0.205
0.170
0.210
0.125
0.165
0.016
0.021
0.045
0.055
0.095
0.105
0.015
0.020
0.500
--0.250
--0.080
0.105
--0.100
0.115
--0.135
---
MILLIMETERS
MIN
MAX
4.45
5.20
4.32
5.33
3.18
4.19
0.407
0.533
1.15
1.39
2.42
2.66
0.39
0.50
12.70
--6.35
--2.04
2.66
--2.54
2.93
--3.43
---
MC79L00, MC79L00A Series
PACKAGE DIMENSIONS
D SUFFIX
PLASTIC PACKAGE
CASE 751–07
ISSUE W
–X–
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSION A AND B DO NOT INCLUDE MOLD
PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) PER
SIDE.
5. DIMENSION D DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.127 (0.005) TOTAL IN
EXCESS OF THE D DIMENSION AT MAXIMUM
MATERIAL CONDITION.
A
8
5
0.25 (0.010)
S
B
1
M
Y
M
4
K
–Y–
G
C
N
X 45 SEATING
PLANE
–Z–
0.10 (0.004)
H
M
D
0.25 (0.010)
M
Z Y
S
X
S
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7
J
DIM
A
B
C
D
G
H
J
K
M
N
S
MILLIMETERS
MIN
MAX
4.80
5.00
3.80
4.00
1.35
1.75
0.33
0.51
1.27 BSC
0.10
0.25
0.19
0.25
0.40
1.27
0
8
0.25
0.50
5.80
6.20
INCHES
MIN
MAX
0.189
0.197
0.150
0.157
0.053
0.069
0.013
0.020
0.050 BSC
0.004
0.010
0.007
0.010
0.016
0.050
0
8
0.010
0.020
0.228
0.244
MC79L00, MC79L00A Series
ON Semiconductor and
are trademarks of Semiconductor Components Industries, LLC (SCILLC). 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
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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.
PUBLICATION ORDERING INFORMATION
Literature Fulfillment:
Literature Distribution Center for ON Semiconductor
P.O. Box 5163, Denver, Colorado 80217 USA
Phone: 303–675–2175 or 800–344–3860 Toll Free USA/Canada
Fax: 303–675–2176 or 800–344–3867 Toll Free USA/Canada
Email: [email protected]
JAPAN: ON Semiconductor, Japan Customer Focus Center
4–32–1 Nishi–Gotanda, Shinagawa–ku, Tokyo, Japan 141–0031
Phone: 81–3–5740–2700
Email: [email protected]
ON Semiconductor Website: http://onsemi.com
For additional information, please contact your local
Sales Representative.
N. American Technical Support: 800–282–9855 Toll Free USA/Canada
http://onsemi.com
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