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MC79M05CT 데이터시트 PDF




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부품번호 MC79M05CT 기능
기능 THREE-TERMINAL NEGATIVE FIXED VOLTAGE REGULATORS
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MC79M05CT 데이터시트, 핀배열, 회로
Order this document by MC79M00/D
Three-Terminal Negative
Voltage Regulators
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
Internal Thermal Overload Protection
Internal Short Circuit Current Limiting
Output Transistor Safe–Area Compensation
Also Available in Surface Mount DPAK (DT) Package
DEVICE TYPE/NOMINAL OUTPUT VOLTAGE
MC79M05
MC79M08
–5.0 V
–8.0 V
MC79M12
MC79M15
–12 V
–15 V
ORDERING INFORMATION
Device
Output
Voltage
Tolerance
Operating
Temperature Range
Package
MC79MXXBDT, BDT–1
MC79MXXBT
MC79MXXCDT, CDT–1
MC79MXXCT
4.0%
TJ = – 40° to +125°C
TJ = 0° to +125°C
DPAK
Plastic Power
DPAK
Plastic Power
XX indicates nominal voltage.
Representative Schematic Diagram
Gnd
MC79M00
Series
THREE–TERMINAL
NEGATIVE FIXED
VOLTAGE REGULATORS
T SUFFIX
PLASTIC PACKAGE
CASE 221A
Heatsink surface
connected to Pin 2.
Pin 1. Ground
2. Input
3. Output
1
2
3
1
3
DT SUFFIX
PLASTIC PACKAGE
CASE 369A
(DPAK)
1
23
DT–1 SUFFIX
PLASTIC PACKAGE
CASE 369
(DPAK)
Heatsink surface (shown as terminal 4 in
case outline drawing) is connected to Pin 2.
STANDARD APPLICATION
4.0 k R1
Input
Cin*
0.33 µF
MC79MXX
Output
CO**
1.0 µF
R2
10 k VO
20 pF
10 pF 10 k
2.0 k
1.1 k
20 k 20 k
240
100
750
This device contains 31 active transistors.
0.3
VI
MOTOROLA ANALOG IC DEVICE DATA
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
Rev 4
1




MC79M05CT pdf, 반도체, 판매, 대치품
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
Output Voltage (TJ = 25°C)
Line Regulation, TJ = 25°C (Note 1)
–17.5 Vdc VI –30 Vdc
–18 Vdc VI –28 Vdc
Load Regulation, TJ = 25°C (Note 1)
5.0 mA IO 500 mA
VO –14.4 –15 –15.6 Vdc
Regline
mV
5.0 80
3.0 50
Regload
mV
30 240
Output Voltage
–17.5 Vdc VI –30 Vdc, 5.0 mA IO 350 mA
VO Vdc
–14.25 – –15.75
Input Bias Current (TJ = 25°C)
Input Bias Current Change
–17.5 Vdc VI –30 Vdc, IO = 350 mA
5.0 mA IO 350 mA, VI = –23 V
Output Noise Voltage, TA = 25°C, 10 Hz f 100 kHz
Ripple Rejection (f = 120 Hz)
IIB – 4.4 8.0 mA
IIB mA
– – 0.4
– – 0.4
Vn – 90 – µV
RR 54 60 – dB
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
– 1.1 –
VO/T
mV/°C
– –1.0 –
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
Figure 1. DPAK Thermal Resistance and Maximum
Power Dissipation versus P.C.B. Copper Length
100
Free Air
PD(max) for TA = 50°C
2.4
90 Mounted
2.0
Vertically
80
Minimum
70 Size Pad
60
2.0 oz. Copper
L 1.6
ÎÎÎÎL 1.2
ÎÎÎÎÎÎÎÎ0.8
50 0.4
RθJA
40 0
0 5.0 10 15 20 25 30
L, LENGTH OF COPPER (mm)
4 MOTOROLA ANALOG IC DEVICE DATA

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MC79M05CT 전자부품, 판매, 대치품
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
others. Motorola 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 Motorola product could create a situation where personal injury
or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola
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 are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal
Opportunity/Affirmative Action Employer.
MOTOROLA ANALOG IC DEVICE DATA
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