LM78M12CT/NOPB [TI]

IC VREG 12 V FIXED POSITIVE REGULATOR, PSFM3, ROHS COMPLIANT, POWER, TO-220, 3 PIN, Fixed Positive Single Output Standard Regulator;
LM78M12CT/NOPB
型号: LM78M12CT/NOPB
厂家: TEXAS INSTRUMENTS    TEXAS INSTRUMENTS
描述:

IC VREG 12 V FIXED POSITIVE REGULATOR, PSFM3, ROHS COMPLIANT, POWER, TO-220, 3 PIN, Fixed Positive Single Output Standard Regulator

局域网 输出元件 调节器
文件: 总18页 (文件大小:2031K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
LM341/LM78MXX  
www.ti.com  
SNVS090E MAY 2004REVISED AUGUST 2005  
LM341/LM78MXX Series 3-Terminal Positive Voltage Regulators  
Check for Samples: LM341/LM78MXX  
1
FEATURES  
DESCRIPTION  
The LM341 and LM78MXX series of three-terminal  
positive voltage regulators employ built-in current  
limiting, thermal shutdown, and safe-operating area  
protection which makes them virtually immune to  
damage from output overloads.  
2
Output Current in Excess of 0.5A  
No External Components  
Internal Thermal Overload Protection  
Internal Short Circuit Current-Limiting  
Output Transistor Safe-Area Compensation  
With adequate heatsinking, they can deliver in excess  
of 0.5A output current. Typical applications would  
include local (on-card) regulators which can eliminate  
the noise and degraded performance associated with  
single-point regulation.  
Available in TO-220, TO, and PFM D-PAK  
Packages  
Output Voltages of 5V, 12V, and 15V  
Connection Diagram  
Figure 1. TO Metal Can Package (NDT) - Bottom View  
See Package Number NDT0003A  
Figure 2. TO-220 Power Package (NDE) - Top View  
See Package Number NDE0003B  
Figure 3. PFM - Top View  
See Package Number NDP0003B  
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam  
during storage or handling to prevent electrostatic damage to the MOS gates.  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
All trademarks are the property of their respective owners.  
2
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2004–2005, Texas Instruments Incorporated  
LM341/LM78MXX  
SNVS090E MAY 2004REVISED AUGUST 2005  
www.ti.com  
ABSOLUTE MAXIMUM RATINGS(1)(2)  
Lead Temperature (Soldering, 10 seconds)  
TO Package (NDT)  
300°C  
260°C  
TO-220 Package (NDE)  
Storage Temperature Range  
Operating Junction Temperature Range  
Power Dissipation(3)  
65°C to +150°C  
40°C to +125°C  
Internally Limited  
35V  
Input Voltage 5V VO 15V  
ESD Susceptibility  
TBD  
(1) Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical specifications do not apply  
when operating the device outside of its rated operating conditions.  
(2) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and  
specifications.  
(3) The typical thermal resistance of the three package types is: NDE (TO-220) package: θ(JA) = 60 °C/W, θ(JC) = 5 °C/W NDT (TO)  
package: θ(JA) = 120 °C/W, θ(JC) = 18 °C/W NDP (PFM) package: θ(JA) = 92 °C/W, θ(JC) = 10 °C/W  
LM341-5.0, LM78M05C ELECTRICAL CHARACTERISTICS  
Unless otherwise specified: VIN = 10V, CIN = 0.33 μF, CO = 0.1 μF  
Limits in standard typeface are for TJ = 25°C, and limits in boldface type apply over the 40°C to +125°C operating  
temperature range. Limits are specified by production testing or correlation techniques using standard Statistical Quality  
Control (SQC) methods.  
Symbol  
Parameter  
Output Voltage  
Conditions  
Min  
4.8  
Typ  
5.0  
5.0  
Max  
5.2  
Units  
VO  
IL= 500 mA  
5 mA IL 500 mA  
D 7.5W, 7.5V VIN 20V  
V
4.75  
5.25  
P
VR LINE  
Line Regulation  
7.2V VIN 25V  
IL = 100 mA  
IL = 500 mA  
50  
100  
100  
10.0  
0.5  
mV  
mA  
VR LOAD  
IQ  
Load Regulation  
5 mA IL 500 mA  
IL = 500 mA  
Quiescent Current  
4
ΔIQ  
Quiescent Current Change  
5 mA IL 500 mA  
7.5V VIN 25V, IL = 500 mA  
f = 10 Hz to 100 kHz  
1.0  
Vn  
Output Noise Voltage  
Ripple Rejection  
40  
78  
μV  
ΔVIN/ΔVO  
VIN  
f = 120 Hz, IL = 500 mA  
dB  
Input Voltage Required to Maintain IL = 500 mA  
Line Regulation  
7.2  
V
ΔVO  
Long Term Stability  
IL = 500 mA  
20  
mV/khrs  
2
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SNVS090E MAY 2004REVISED AUGUST 2005  
LM341-12, LM78M12C ELECTRICAL CHARACTERISTICS  
Unless otherwise specified: VIN = 19V, CIN = 0.33 μF, CO = 0.1 μF  
Limits in standard typeface are for TJ = 25°C, and limits in boldface type apply over the 40°C to +125°C operating  
temperature range. Limits are specified by production testing or correlation techniques using standard Statistical Quality  
Control (SQC) methods.  
Symbol  
Parameter  
Output Voltage  
Conditions  
Min  
11.5  
11.4  
Typ  
12  
Max  
12.5  
12.6  
Units  
VO  
IL= 500 mA  
5 mA IL 500 mA  
D 7.5W, 14.8V VIN 27V  
V
12  
P
VR LINE  
Line Regulation  
14.5V VIN 30V  
IL = 100 mA  
IL = 500 mA  
120  
240  
240  
10.0  
0.5  
mV  
mA  
VR LOAD  
IQ  
Load Regulation  
5 mA IL 500 mA  
IL = 500 mA  
Quiescent Current  
4
ΔIQ  
Quiescent Current Change  
5 mA IL 500 mA  
14.8V VIN 30V, IL = 500 mA  
f = 10 Hz to 100 kHz  
1.0  
Vn  
Output Noise Voltage  
Ripple Rejection  
75  
71  
μV  
ΔVIN/ΔVO  
VIN  
f = 120 Hz, IL = 500 mA  
dB  
Input Voltage Required to Maintain IL = 500 mA  
Line Regulation  
14.5  
V
ΔVO  
Long Term Stability  
IL = 500 mA  
48  
mV/khrs  
LM341-15, LM78M15C ELECTRICAL CHARACTERISTICS  
Unless otherwise specified: VIN = 23V, CIN = 0.33 μF, CO = 0.1 μF  
Limits in standard typeface are for TJ = 25°C, and limits in boldface type apply over the 40°C to +125°C operating  
temperature range. Limits are specified by production testing or correlation techniques using standard Statistical Quality  
Control (SQC) methods.  
Symbol  
Parameter  
Output Voltage  
Conditions  
Min  
14.4  
Typ  
15  
Max  
15.6  
Units  
VO  
IL= 500 mA  
5 mA IL 500 mA  
D 7.5W, 18V VIN 30V  
V
14.25  
15  
15.75  
P
VR LINE  
Line Regulation  
17.6V VIN 30V  
IL = 100 mA  
IL = 500 mA  
150  
300  
300  
10.0  
0.5  
mV  
mA  
VR LOAD  
IQ  
Load Regulation  
5 mA IL 500 mA  
IL = 500 mA  
Quiescent Current  
4
ΔIQ  
Quiescent Current Change  
5 mA IL 500 mA  
18V VIN 30V, IL = 500 mA  
f = 10 Hz to 100 kHz  
f = 120 Hz, IL = 500 mA  
IL = 500 mA  
1.0  
Vn  
Output Noise Voltage  
Ripple Rejection  
90  
69  
μV  
ΔVIN/ΔVO  
VIN  
dB  
Input Voltage Required to Maintain  
Line Regulation  
17.6  
V
ΔVO  
Long Term Stability  
IL = 500 mA  
60  
mV/khrs  
Copyright © 2004–2005, Texas Instruments Incorporated  
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SCHEMATIC DIAGRAM  
4
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SNVS090E MAY 2004REVISED AUGUST 2005  
TYPICAL PERFORMANCE CHARACTERISTICS  
Peak Output Current  
Ripple Rejection  
Figure 4.  
Figure 5.  
Ripple Rejection  
Dropout Voltage  
Figure 6.  
Figure 7.  
Output Voltage (Normalized  
to 1V at TJ = 25°C)  
Quiescent Current  
Figure 8.  
Figure 9.  
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TYPICAL PERFORMANCE CHARACTERISTICS (continued)  
Quiescent Current  
Output Impedance  
Figure 10.  
Figure 11.  
Line Transient Response  
Load Transient Response  
Figure 12.  
Figure 13.  
6
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LM341/LM78MXX  
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SNVS090E MAY 2004REVISED AUGUST 2005  
DESIGN CONSIDERATIONS  
The LM78MXX/LM341XX fixed voltage regulator series has built-in thermal overload protection which prevents  
the device from being damaged due to excessive junction temperature.  
The regulators also contain internal short-circuit protection which limits the maximum output current, and safe-  
area protection for the pass transistor which reduces the short-circuit current as the voltage across the pass  
transistor is increased.  
Although the internal power dissipation is automatically limited, the maximum junction temperature of the device  
must be kept below +125°C in order to meet data sheet specifications. An adequate heatsink should be provided  
to assure this limit is not exceeded under worst-case operating conditions (maximum input voltage and load  
current) if reliable performance is to be obtained).  
HEATSINK CONSIDERATIONS  
When an integrated circuit operates with appreciable current, its junction temperature is elevated. It is important  
to quantify its thermal limits in order to achieve acceptable performance and reliability. This limit is determined by  
summing the individual parts consisting of a series of temperature rises from the semiconductor junction to the  
operating environment. A one-dimension steady-state model of conduction heat transfer is demonstrated in  
Figure 14 The heat generated at the device junction flows through the die to the die attach pad, through the lead  
frame to the surrounding case material, to the printed circuit board, and eventually to the ambient environment.  
Below is a list of variables that may affect the thermal resistance and in turn the need for a heatsink.  
RθJC (Component Variables)  
RθCA (Application Variables)  
Leadframe Size & Material  
No. of Conduction Pins  
Die Size  
Mounting Pad Size, Material, & Location  
Placement of Mounting Pad  
PCB Size & Material  
Traces Length & Width  
Adjacent Heat Sources  
Volume of Air  
Die Attach Material  
Molding Compound Size and Material  
Air Flow  
Ambient Temperature  
Shape of Mounting Pad  
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APPLICATION INFORMATION  
Note that the case temperature is measured at the point where the leads contact with the mounting pad surface  
Figure 14. Cross-sectional view of Integrated Circuit Mounted on a printed circuit board.  
The LM78MXX/LM341XX regulators have internal thermal shutdown to protect the device from over-heating.  
Under all possible operating conditions, the junction temperature of the LM78MXX/LM341XX must be within the  
range of 0°C to 125°C. A heatsink may be required depending on the maximum power dissipation and maximum  
ambient temperature of the application. To determine if a heatsink is needed, the power dissipated by the  
regulator, PD, must be calculated:  
IIN = IL + IG  
(1)  
(2)  
PD = (VINVOUT) IL + VINIG  
Figure 15 shows the voltages and currents which are present in the circuit.  
Figure 15. Power Dissipation Diagram  
The next parameter which must be calculated is the maximum allowable temperature rise, TR(max):  
θJA = TR (max)/PD  
(3)  
If the maximum allowable value for θJA°C/w is found to be 60°C/W for TO-220 package or 92°C/W for PFM  
package, no heatsink is needed since the package alone will dissipate enough heat to satisfy these  
requirements. If the calculated value for θJA fall below these limits, a heatsink is required.  
As a design aid, Table 1 shows the value of the θJA of PFM for different heatsink area. The copper patterns that  
we used to measure these θJA are shown at the end of the Application Note Section. Figure 16 reflects the same  
test results as what are in the Table 1  
Figure 17 shows the maximum allowable power dissipation vs. ambient temperature for the TO-252 device.  
Figure 18 shows the maximum allowable power dissipation vs. copper area (in2) for the TO-252 device. Please  
see AN-1028 (SNVA036) for power enhancement techniques to be used with TO-252 package.  
8
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LM341/LM78MXX  
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SNVS090E MAY 2004REVISED AUGUST 2005  
Table 1. θJA Different Heatsink Area  
Layout  
Copper Area  
Thermal Resistance  
Top Sice (in2)(1)  
Bottom Side (in2)  
(θJA, °C/W) TO-252  
1
2
0.0123  
0.066  
0.3  
0
0
103  
87  
60  
54  
52  
47  
84  
70  
63  
57  
57  
89  
72  
61  
55  
53  
3
0
4
0.53  
0.76  
1
0
5
0
6
0
7
0
0.2  
0.4  
0.6  
0.8  
1
8
0
9
0
10  
11  
12  
13  
14  
15  
16  
0
0
0.066  
0.175  
0.284  
0.392  
0.5  
0.066  
0.175  
0.284  
0.392  
0.5  
(1) Tab of device attached to topside copper  
Figure 16. θJA vs. 2oz Copper Area for TO-252  
Figure 17. Maximum Allowable Power Dissipation vs. Ambient Temperature for TO-252  
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Figure 18. Maximum Allowable Power Dissipation vs. 2oz. Copper Area for TO-252  
Typical Application  
*Required if regulator input is more than 4 inches from input filter capacitor (or if no input filter capacitor is used).  
**Optional for improved transient response.  
Figure 19. Typical Application  
10  
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PACKAGE OPTION ADDENDUM  
www.ti.com  
1-Nov-2013  
PACKAGING INFORMATION  
Orderable Device  
LM341T-15  
Status Package Type Package Pins Package  
Eco Plan  
Lead/Ball Finish  
MSL Peak Temp  
Op Temp (°C)  
-40 to 125  
-40 to 125  
-40 to 125  
-40 to 125  
-40 to 125  
-40 to 125  
-40 to 125  
-40 to 125  
-40 to 125  
-40 to 125  
-40 to 125  
-40 to 125  
Device Marking  
Samples  
Drawing  
Qty  
(1)  
(2)  
(6)  
(3)  
(4/5)  
NRND  
TO-220  
TO-220  
TO-220  
TO-220  
TO-252  
TO-252  
TO-252  
TO-252  
TO  
NDE  
3
3
3
3
3
3
3
3
3
3
3
3
45  
TBD  
Call TI  
CU SN  
Call TI  
CU SN  
Call TI  
CU SN  
Call TI  
CU SN  
AU  
Call TI  
Level-1-NA-UNLIM  
Call TI  
LM341T-15  
LM78M15CT  
LM341T-15/NOPB  
LM341T-5.0  
ACTIVE  
NRND  
NDE  
NDE  
NDE  
NDP  
NDP  
NDP  
NDP  
NDT  
NDT  
NDE  
NDE  
45  
45  
Green (RoHS  
& no Sb/Br)  
LM341T-15  
LM78M15CT  
TBD  
LM341T-5.0  
LM78M05CT  
LM341T-5.0/NOPB  
LM78M05CDT  
ACTIVE  
NRND  
45  
Green (RoHS  
& no Sb/Br)  
Level-1-NA-UNLIM  
Call TI  
LM341T-5.0  
LM78M05CT  
75  
TBD  
LM78M05  
CDT  
LM78M05CDT/NOPB  
LM78M05CDTX  
LM78M05CDTX/NOPB  
LM78M05CH  
ACTIVE  
NRND  
75  
Green (RoHS  
& no Sb/Br)  
Level-2-260C-1 YEAR  
Call TI  
LM78M05  
CDT  
2500  
2500  
500  
500  
45  
TBD  
LM78M05  
CDT  
ACTIVE  
ACTIVE  
ACTIVE  
NRND  
Green (RoHS  
& no Sb/Br)  
Level-2-260C-1 YEAR  
Level-1-NA-UNLIM  
Level-1-NA-UNLIM  
Call TI  
LM78M05  
CDT  
Green (RoHS  
& no Sb/Br)  
LM78M05CH  
LM78M05CH/NOPB  
LM78M05CT  
TO  
Green (RoHS  
& no Sb/Br)  
AU  
LM78M05CH  
TO-220  
TO-220  
TBD  
Call TI  
CU SN  
LM341T-5.0  
LM78M05CT  
LM78M05CT/NOPB  
ACTIVE  
45  
Green (RoHS  
& no Sb/Br)  
Level-1-NA-UNLIM  
LM341T-5.0  
LM78M05CT  
(1) The marketing status values are defined as follows:  
ACTIVE: Product device recommended for new designs.  
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.  
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.  
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.  
OBSOLETE: TI has discontinued the production of the device.  
(2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability  
information and additional product content details.  
TBD: The Pb-Free/Green conversion plan has not been defined.  
Addendum-Page 1  
PACKAGE OPTION ADDENDUM  
www.ti.com  
1-Nov-2013  
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that  
lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.  
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between  
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.  
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight  
in homogeneous material)  
(3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.  
(4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device.  
(5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation  
of the previous line and the two combined represent the entire Device Marking for that device.  
(6) Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish  
value exceeds the maximum column width.  
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information  
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and  
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.  
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.  
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.  
Addendum-Page 2  
PACKAGE MATERIALS INFORMATION  
www.ti.com  
29-May-2013  
TAPE AND REEL INFORMATION  
*All dimensions are nominal  
Device  
Package Package Pins  
Type Drawing  
SPQ  
Reel  
Reel  
A0  
B0  
K0  
P1  
W
Pin1  
Diameter Width (mm) (mm) (mm) (mm) (mm) Quadrant  
(mm) W1 (mm)  
LM78M05CDTX  
TO-252  
NDP  
NDP  
3
3
2500  
2500  
330.0  
330.0  
16.4  
16.4  
6.9  
6.9  
10.5  
10.5  
2.7  
2.7  
8.0  
8.0  
16.0  
16.0  
Q2  
Q2  
LM78M05CDTX/NOPB TO-252  
Pack Materials-Page 1  
PACKAGE MATERIALS INFORMATION  
www.ti.com  
29-May-2013  
*All dimensions are nominal  
Device  
Package Type Package Drawing Pins  
SPQ  
Length (mm) Width (mm) Height (mm)  
LM78M05CDTX  
TO-252  
TO-252  
NDP  
NDP  
3
3
2500  
2500  
367.0  
367.0  
367.0  
367.0  
35.0  
38.0  
LM78M05CDTX/NOPB  
Pack Materials-Page 2  
MECHANICAL DATA  
NDT0003A  
H03A (Rev D)  
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MECHANICAL DATA  
NDE0003B  
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MECHANICAL DATA  
NDP0003B  
TD03B (Rev F)  
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