TL1431-EP_15 [TI]

Precision-Programmable Reference;
TL1431-EP_15
型号: TL1431-EP_15
厂家: TEXAS INSTRUMENTS    TEXAS INSTRUMENTS
描述:

Precision-Programmable Reference

文件: 总20页 (文件大小:595K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
TL1431-EP  
PRECISION PROGRAMMABLE REFERENCE  
www.ti.com  
SLVS529CAPRIL 2004REVISED DECEMBER 2006  
FEATURES  
Controlled Baseline  
Low Reference Current (REF)  
One Assembly/Test Site, One Fabrication  
Site  
Adjustable Output Voltage . . . VI(ref) to 36 V  
JG PACKAGE  
(TOP VIEW)  
Extended Temperature Performance of –55°C  
to 125°C  
1
2
3
4
8
7
6
5
CATHODE  
ANODE  
ANODE  
NC  
REF  
Enhanced Diminishing Manufacturing Sources  
(DMS) Support  
ANODE  
ANODE  
NC  
Enhanced Product-Change Notification  
(1)  
Qualification Pedigree  
0.4% Initial Voltage Tolerance  
0.2-Typical Output Impedance  
Fast Turnon . . . 500 ns  
NC − No internal connection  
ANODE terminals are connected internally.  
Sink Current Capability . . . 1 mA to 100 mA  
(1) Component qualification in accordance with JEDEC and  
industry standards to ensure reliable operation over an  
extended temperature range. This includes, but is not limited  
to, Highly Accelerated Stress Test (HAST) or biased 85/85,  
temperature cycle, autoclave or unbiased HAST,  
electromigration, bond intermetallic life, and mold compound  
life. Such qualification testing should not be viewed as  
justifying use of this component beyond specified  
performance and environmental limits.  
DESCRIPTION/ORDERING INFORMATION  
The TL1431 is a precision programmable reference with specified thermal stability over the automotive  
temperature range. The output voltage can be set to any value between VI(ref) (approximately 2.5 V) and 36 V  
with two external resistors (see Figure 16). This device has a typical output impedance of 0.2 . Active output  
circuitry provides a very sharp turnon characteristic, making the device an excellent replacement for Zener  
diodes and other types of references in applications such as onboard regulation, adjustable power supplies, and  
switching power supplies.  
ORDERING INFORMATION  
TA  
–40°C to 125°C  
–55°C to 125°C  
PACKAGE(1)  
Reel of 2500  
Reel of 2500  
ORDERABLE PART NUMBER  
TL1431QDREP  
TOP-SIDE MARKING  
1431QE  
1431ME  
SOIC – D  
SOIC – D  
TL1431MDREP  
(1) Package drawings, standard packing quantities, thermal data, symbolizatin, and PCB design guidelines are available at  
www.ti.com/sc/package.  
SYMBOL  
REF  
ANODE  
CATHODE  
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.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2004–2006, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
TL1431-EP  
PRECISION PROGRAMMABLE REFERENCE  
www.ti.com  
SLVS529CAPRIL 2004REVISED DECEMBER 2006  
FUNCTIONAL BLOCK DIAGRAM  
CATHODE  
+
REF  
V
ref  
ANODE  
EQUIVALENT SCHEMATIC(1)  
1
8
CATHODE  
800  
800 Ω  
20 pF  
REF  
150 Ω  
10 kΩ  
3.28 kΩ  
4 kΩ  
20 pF  
7.2 kΩ  
2.4 kΩ  
1 kΩ  
800 Ω  
2, 3, 6, 7  
ANODE  
(1) All component values are nominal.  
2
Submit Documentation Feedback  
TL1431-EP  
PRECISION PROGRAMMABLE REFERENCE  
www.ti.com  
SLVS529CAPRIL 2004REVISED DECEMBER 2006  
Absolute Maximum Ratings(1)  
over operating free-air temperature range (unless otherwise noted)  
MIN  
MAX  
37  
UNIT  
V
VKA  
IKA  
Cathode voltage(2)  
Continuous cathode current range  
Reference input current range  
–100  
150  
mA  
II(ref)  
–50 µA  
10 mA  
θJA  
Package thermal impedance (High K Board)(3)(4)  
97  
°C/W  
(High)  
θJA (Low) Package thermal impedance (Low K Board)(3)(4)  
165  
150  
°C/W  
°C  
TJ  
Operating virtual junction temperature(5)  
See Dissipation  
Rating Table  
Continuous total power dissipation  
Lead temperature 1,6 mm(1/16 in) from case for 10 s  
Storage temperature range(5)  
260  
°C  
°C  
Tstg  
–65  
150  
(1) Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings  
only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating  
conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.  
(2) All voltage values are with respect to ANODE, unless otherwise noted.  
(3) Temperature and/or supply voltages must be limited to ensure that the maximum dissipation rating is not exceeded.  
(4) The package thermal impedance is calculated in accordance with JESD 51-7.  
(5) Long-term high-temperature storage and/or use at the absolute maximum ratings may result in a reduction of overall device life. See  
http://www.ti.com/ep_quality for additional information on enhanced plastic packaging.  
DISSIPATION RATING TABLE  
DERATING  
FACTOR  
ABOVE TA =  
TA = 70°C  
ABSOLUTE  
MAXIMUM  
TA = 85°C  
ABSOLUTE  
MAXIMUM  
TA = 125°C  
ABSOLUTE  
MAXIMUM  
PACKAGE  
THERMAL  
IMPEDANCE  
T
A 25°C  
PACKAGE  
POWER RATING  
25°C  
POWER RATING POWER RATING POWER RATING  
97°C/W (High K  
10 mW/°C  
6 mW/°C  
824 mW  
484 mW  
670 mW  
393 mW  
257 mW  
151 mW  
Board)  
D
1102 mW  
165°C/W (Low K  
Board)  
Recommended Operating Conditions  
MIN  
MAX  
UNIT  
VKA  
IKA  
TA  
Cathode voltge  
VI(ref)  
1
36  
100  
125  
V
Cathode current  
mA  
°C  
Operating free-air temperature  
–55  
3
Submit Documentation Feedback  
TL1431-EP  
PRECISION PROGRAMMABLE REFERENCE  
www.ti.com  
SLVS529CAPRIL 2004REVISED DECEMBER 2006  
Electrical Characteristics  
at specified free-air temperature, IKA = 10 mA (unless otherwise noted)  
TEST  
CIRCUIT  
(1)  
PARAMETER  
TEST CONDITIONS  
VKA = VI(ref)  
TA  
MIN  
TYP  
MAX UNIT  
25°C  
2490  
2470  
2500  
2510  
mV  
VI(ref)  
Reference input voltage  
Figure 1  
Figure 1  
Full range  
2530  
Deviation of reference input  
voltage over full temperature  
range(2)  
VI(dev)  
VKA = VI(ref)  
Full range  
Full range  
17  
mV  
Ratio of change in reference  
input voltage to the change in VKA = 3 V to 36 V  
cathode voltage  
DVI(ref)  
DVKA  
Figure 2  
Figure 2  
Figure 2  
–1.1  
1.5  
–2 mV/V  
25°C  
2.5  
µA  
4
II(ref)  
Reference input current  
R1 = 10 k,  
R1 = 10 k,  
R2 = ∞  
R2 = ∞  
Full range  
Deviation of reference input  
current over full temperature  
range(2)  
II(dev)  
Full range  
0.5  
µA  
Minimum cathode current for  
regulation  
Imin  
Ioff  
|zKA  
VKA = VI(ref)  
VKA = 36 V,  
25°C  
Figure 1  
Figure 3  
Figure 1  
0.45  
0.18  
1
mA  
µA  
25°C  
0.5  
2
Off-state cathode current  
Output impedance(3)  
VI(ref) = 0  
Full range  
VKA = VI(ref), f 1 kHz,  
IKA = 1 mA to 100 mA  
|
25°C  
0.2  
0.4  
(1) Full range is –40°C to 125°C for Q-suffix devices; –55°C to 125°C for M-suffix devices.  
(2) The deviation parameters VI(dev) and II(dev) are defined as the differences between the maximum and minimum values obtained over the  
aVI(ref)  
rated temperature range. The average full-range temperature coefficient of the reference input voltage  
is defined as:  
V
(
)
I dev  
  106  
ǒ Ǔ  
V
at 25 C  
°
Max V  
(
)
I ref  
I(ref)  
I(ref)  
ppm  
Ť Ť  
ǒ Ǔ+  
aVI(ref  
DTA  
)
°C  
V
I(dev)  
where:  
T is the rated operating temperature range of the device.  
A
Min V  
T  
A
aVI(ref)  
is positive or negative, depending on whether minimum VI(ref) or maximum VI(ref), respectively, occurs at the lower temperature.  
DVKA  
Ť
Ť +  
zKA  
DIKA  
When the device is operating with two external resistors (see Figure 2), the total dynamic impedance of the circuit is given by:  
(3) The output impedance is defined as:  
R1  
R2  
DV  
DI  
Ť
Ť +  
ǒ1 )  
Ǔ
zKA  
|
|
zȀ +  
, which is approximately equal to  
.
4
Submit Documentation Feedback  
TL1431-EP  
PRECISION PROGRAMMABLE REFERENCE  
www.ti.com  
SLVS529CAPRIL 2004REVISED DECEMBER 2006  
PARAMETER MEASUREMENT INFORMATION  
V
KA  
Input  
V
KA  
Input  
I
I
KA  
KA  
R1  
I
I(ref)  
V
I(ref)  
V
I(ref)  
R2  
R1  
R2  
I(ref) ǒ1 ) Ǔ) I  
V
+ V  
  R1  
KA  
I(ref)  
Figure 1. Test Circuit for V(KA) = Vref  
Figure 2. Test Circuit for V(KA) > Vref  
Input  
V
KA  
I
off  
Figure 3. Test Circuit for Ioff  
5
Submit Documentation Feedback  
TL1431-EP  
PRECISION PROGRAMMABLE REFERENCE  
www.ti.com  
SLVS529CAPRIL 2004REVISED DECEMBER 2006  
(1)  
TYPICAL CHARACTERISTICS  
(1) Data at high and low temperatures are applicable only within the recommended operating free-air temperature ranges of the various  
devices.  
TABLE OF GRAPHS  
FIGURE  
Reference voltage vs Free-air temperature  
Reference current vs Free-air temperature  
Cathode current vs Cathode voltage  
4
5
6, 7  
8
Off-state cathode current vs Free-air temperature  
Ratio of delta reference voltage to delta cathode voltage vs Free-air temperature  
Equivalent input-noise voltage vs Frequency  
Equivalent input-noise voltage over a 10-s period  
Small-signal voltage amplification vs Frequency  
Reference impedance vs Frequency  
9
10  
11  
12  
13  
14  
15  
Pulse response  
Stability boundary conditions  
REFERENCE VOLTAGE  
vs  
REFERENCE CURRENT  
vs  
FREE-AIR TEMPERATURE  
FREE-AIR TEMPERATURE  
2.5  
2
2.52  
2.51  
2.5  
I
= 10 mA  
R1 = 10 k  
R2 = ∞  
KA  
V
= V  
KA  
= 10 mA  
I(ref)  
I
KA  
1.5  
1
2.49  
2.48  
0.5  
0
0
75  
− 50 − 25  
25  
50  
100  
125  
− 50 − 25  
0
25  
50  
75  
100  
125  
T
A
− Free-Air Temperature − °C  
T
A
− Free-Air Temperature − °C  
Figure 4.  
Figure 5.  
6
Submit Documentation Feedback  
TL1431-EP  
PRECISION PROGRAMMABLE REFERENCE  
www.ti.com  
SLVS529CAPRIL 2004REVISED DECEMBER 2006  
CATHODE CURRENT  
vs  
CATHODE VOLTAGE  
CATHODE CURRENT  
vs  
CATHODE VOLTAGE  
800  
150  
V
T
A
= V  
I(ref)  
= 25°C  
V
T
= V  
I(ref)  
= 25°C  
KA  
KA  
A
100  
50  
600  
400  
200  
0
0
− 50  
− 100  
− 150  
− 200  
− 3  
− 2  
− 1  
0
1
2
3
−2  
−1  
0
1
2
3
4
V
KA  
− Cathode Voltage − V  
V
KA  
− Cathode Voltage − V  
Figure 6.  
Figure 7.  
OFF-STATE CATHODE CURRENT  
vs  
RATIO OF DELTA REFERENCE VOLTAGE TO  
DELTA CATHODE VOLTAGE  
vs  
FREE-AIR TEMPERATURE  
0.4  
0.35  
0.3  
FREE-AIR TEMPERATURE  
V
V
= 36 V  
−0.85  
KA  
= 0  
V
KA  
= 3 V to 36 V  
I(ref)  
−0.95  
−1.05  
−1.15  
−1.25  
−1.35  
−1.45  
0.25  
0.2  
0.15  
0.1  
0.05  
0
− 25  
0
25  
50  
75  
100  
125  
−50  
−50 − 25  
0
25  
50  
75  
100  
125  
T
A
− Free-Air Temperature − °C  
T
A
− Free-Air Temperature − °C  
Figure 8.  
Figure 9.  
7
Submit Documentation Feedback  
TL1431-EP  
PRECISION PROGRAMMABLE REFERENCE  
www.ti.com  
SLVS529CAPRIL 2004REVISED DECEMBER 2006  
EQUIVALENT INPUT-NOISE VOLTAGE  
vs  
FREQUENCY  
260  
240  
220  
200  
I
= 10 mA  
O
T = 25°C  
A
180  
160  
140  
120  
100  
10  
100  
1 k  
10 k  
100 k  
f − Frequency − Hz  
Figure 10.  
8
Submit Documentation Feedback  
TL1431-EP  
PRECISION PROGRAMMABLE REFERENCE  
www.ti.com  
SLVS529CAPRIL 2004REVISED DECEMBER 2006  
EQUIVALENT INPUT-NOISE VOLTAGE  
OVER A 10-s PERIOD  
6
5
4
3
2
1
0
− 1  
− 2  
− 3  
− 4  
− 5  
− 6  
f = 0.1 to 10 Hz  
= 10 mA  
T = 25°C  
A
I
KA  
0
2
4
6
8
10  
t − Time − s  
19.1 V  
1 kΩ  
910 Ω  
2000 µF  
V
CC  
V
CC  
500 µF  
TL1431  
(DUT)  
TLE2027  
A = 10 V/mV  
V
820 Ω  
1 µF  
+
+
TLE2027  
16 Ω  
16 Ω  
1 µF  
16 Ω  
2.2 µF  
160 kΩ  
33 kΩ  
1 MΩ  
CRO  
A = 2 V/V  
V
0.1 µF  
33 kΩ  
V
EE  
V
EE  
TEST CIRCUIT FOR 0.1-Hz TO 10-Hz EQUIVALENT INPUT-NOISE VOLTAGE  
Figure 11.  
9
Submit Documentation Feedback  
TL1431-EP  
PRECISION PROGRAMMABLE REFERENCE  
www.ti.com  
SLVS529CAPRIL 2004REVISED DECEMBER 2006  
SMALL-SIGNAL VOLTAGE AMPLIFICATION  
vs  
FREQUENCY  
60  
I
= 10 mA  
KA  
T = 25°C  
A
Output  
I
(K)  
50  
40  
15 kΩ  
230 Ω  
9 µF  
+
30  
20  
10  
8.25 kΩ  
GND  
TEST CIRCUIT FOR VOLTAGE AMPLIFICATION  
0
1 k  
10 k  
100 k  
1 M  
10 M  
f − Frequency − Hz  
Figure 12.  
REFERENCE IMPEDANCE  
vs  
FREQUENCY  
100  
I
= 1 mA to 100 mA  
KA  
1 k  
T = 25°C  
A
Output  
I
(K)  
10  
50 Ω  
+
1
GND  
TEST CIRCUIT FOR REFERENCE IMPEDANCE  
0.1  
1 k  
10 k  
100 k  
1 M  
10 M  
f − Frequency − Hz  
Figure 13.  
10  
Submit Documentation Feedback  
TL1431-EP  
PRECISION PROGRAMMABLE REFERENCE  
www.ti.com  
SLVS529CAPRIL 2004REVISED DECEMBER 2006  
PULSE RESPONSE  
Input  
6
T = 25°C  
A
V
I
220 Ω  
Output  
5
4
3
2
1
0
Pulse  
Generator  
f = 100 kHz  
50 Ω  
Output  
GND  
TEST CIRCUIT FOR PULSE RESPONSE  
0
1
2
3
4
5
6
7
t − Time − µs  
Figure 14.  
150  
STABILITY BOUNDARY CONDITIONS  
I
KA  
V
I
100  
90  
A-V = V  
+
KA  
I(ref)  
I
= 10 mA  
KA  
B-V = 5 V  
KA  
C
L
T = 25°C  
V
A
BATT  
C-V = 10 V  
KA  
D-V = 15 V  
KA  
80  
70  
Stable  
60  
50  
B
Stable  
C
TEST CIRCUIT FOR CURVE A  
40  
A
I
R1 =  
10 kΩ  
KA  
30  
20  
10  
0
150 Ω  
D
C
L
V
I
+
V
BATT  
0.001  
0.01  
0.1  
1
10  
R2  
C − Load Capacitance − µF  
L
The areas under the curves represent conditions that may cause the  
device to oscillate. For curves B, C, and D, R2 and V+ are adjusted to  
establish the initial V and I conditions, with C = 0. V  
then are adjusted to determine the ranges of stability.  
and C  
L
KA  
KA  
L
BATT  
TEST CIRCUIT FOR CURVES B, C, AND D  
Figure 15.  
11  
Submit Documentation Feedback  
TL1431-EP  
PRECISION PROGRAMMABLE REFERENCE  
www.ti.com  
SLVS529CAPRIL 2004REVISED DECEMBER 2006  
APPLICATION INFORMATION  
TABLE OF APPLICATION CIRCUITS  
APPLICATION  
FIGURE  
16  
Shunt regulator  
Single-supply comparator with temperature-compensated threshold  
Precision high-current series regulator  
Output control of a three-terminal fixed regulator  
Higher-current shunt regulator  
Crowbar  
17  
18  
19  
20  
21  
Precision 5-V, 1.5-A, 0.5% regulator  
5-V precision regulator  
22  
23  
PWM converter with 0.5% reference  
Voltage monitor  
24  
25  
Delay timer  
26  
Precision current limiter  
27  
Precision constant-current sink  
28  
R
V
(BATT)  
V
(BATT)  
V
O
R1  
0.1%  
V
O
V
I(ref)  
TL1431  
V
on  
2 V  
V
off  
V  
(BATT)  
R2  
0.1%  
Input  
TL1431  
V
IT  
= 2.5 V  
R1  
R2  
+ ǒ1 ) ǓVI(ref)  
V
GND  
O
NOTE A: R should provide cathode current 1 mA to the TL1431 at  
minimumV  
.
(BATT)  
Figure 16. Shunt Regulator  
Figure 17. Single-Supply Comparator  
With Temperature-Compensated Threshold  
12  
Submit Documentation Feedback  
TL1431-EP  
PRECISION PROGRAMMABLE REFERENCE  
www.ti.com  
SLVS529CAPRIL 2004REVISED DECEMBER 2006  
V
(BATT)  
V
(BATT)  
In  
Out  
V
O
µA7805  
R
2N2222  
30  
Common  
R1  
R2  
2N2222  
TL1431  
0.01 µF  
4.7 kΩ  
V
O
TL1431  
R1  
0.1%  
R2  
0.1%  
R1  
R2  
R1  
R2  
+ ǒ1 ) ǓVI(ref)  
V
V + ǒ1 ) ǓVI(ref)  
O
Min V = V  
+ 5 V  
NOTE A: R should provide cathode current 1 mA to the TL1431 at  
minimumV  
I(ref)  
(BATT).  
Figure 18. Precision High-Current Series Regulator  
Figure 19. Output Control of a  
Three-Terminal Fixed Regulator  
V
(BATT)  
R
V
O
V
O
V
(BATT)  
R1  
R1  
R2  
TL1431  
C
R2  
TL1431  
R1  
+ ǒ1 ) ǓVI(ref)  
V
R1  
R2  
trip  
R2  
+ ǒ1 ) ǓVI(ref)  
V
O
NOTE A: Refer to the stability boundary conditions in Figure 15 to  
determineallowable values for C.  
Figure 20. Higher-Current Shunt Regulator  
In Out  
Figure 21. Crowbar  
V
(BATT)  
V
O
= 5 V  
V
= 5 V, 1.5 A, 0.5%  
V
(BATT)  
O
LM317  
R
b
8.2 k  
27.4 k  
243 Ω  
Adjust  
0.1%  
0.1%  
TL1431  
TL1431  
243 Ω  
0.1%  
27.4 kΩ  
0.1%  
NOTE A: R should provide cathode current 1 mA to the TL1431.  
b
Figure 22. Precision 5-V, 1.5-A, 0.5% Regulator  
Figure 23. Precision Regulator  
13  
Submit Documentation Feedback  
TL1431-EP  
PRECISION PROGRAMMABLE REFERENCE  
www.ti.com  
SLVS529CAPRIL 2004REVISED DECEMBER 2006  
R3  
12 V  
V
(BATT)  
R1B  
R4  
R1A  
R2A  
6.8 k  
V
CC  
10 kΩ  
10 kΩ  
5 V +0.5%  
TL1431  
+
TL1431  
TL1431  
0.1%  
X
Not  
TL598  
R2B  
Used  
10 kΩ  
0.1%  
R1B  
Low Limit + ǒ1 ) ǓVI(ref)  
R2B  
LED on When  
Low Limit < V < High Limit  
(BATT)  
Feedback  
R1A  
High Limit + ǒ1 ) ǓVI(ref)  
R2A  
NOTE A: Select R3 and R4 to provide the desired LED intensity and  
cathode current 1 mA to the TL1431.  
Figure 24. PWM Converter With 0.5% Reference  
Figure 25. Voltage Monitor  
680  
R
CL  
0.1%  
I
O
12 V  
V
(BATT)  
R1  
2 kΩ  
R
TL1431  
TL1431  
V
I(ref)  
On  
I
+
) I  
C
O
KA  
R
Off  
CL  
V
(BATT)  
R1 +  
I
O
ǒ Ǔ) I  
12 V  
KA  
Delay + R   C   I  
h
FE  
I
(
)
12 V * V  
I(ref)  
Figure 26. Delay Timer  
Figure 27. Precision Current Limiter  
V
(BATT)  
I
O
TL1431  
R
S
0.1%  
V
I(ref)  
+
I
O
R
S
Figure 28. Precision Constant-Current Sink  
14  
Submit Documentation Feedback  
PACKAGE OPTION ADDENDUM  
www.ti.com  
24-Oct-2008  
PACKAGING INFORMATION  
Orderable Device  
TL1431MDREP  
TL1431MDREPG4  
TL1431QDREP  
V62/04756-01XE  
V62/04756-02XE  
Status (1)  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
Package Package  
Pins Package Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)  
Qty  
Type  
Drawing  
SOIC  
D
8
8
8
8
8
2500 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
SOIC  
SOIC  
SOIC  
SOIC  
D
D
D
D
2500 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
2500 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
2500 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
2500 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
(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.  
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.  
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.  
OTHER QUALIFIED VERSIONS OF TL1431-EP :  
Catalog: TL1431  
Automotive: TL1431-Q1  
Military: TL1431M  
Space: TL1431-SP  
NOTE: Qualified Version Definitions:  
Catalog - TI's standard catalog product  
Automotive - Q100 devices qualified for high-reliability automotive applications targeting zero defects  
Military - QML certified for Military and Defense Applications  
Space - Radiation tolerant, ceramic packaging and qualified for use in Space-based application  
Addendum-Page 1  
PACKAGE MATERIALS INFORMATION  
www.ti.com  
14-Jul-2012  
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)  
TL1431MDREP  
TL1431QDREP  
SOIC  
SOIC  
D
D
8
8
2500  
2500  
330.0  
330.0  
12.4  
12.4  
6.4  
6.4  
5.2  
5.2  
2.1  
2.1  
8.0  
8.0  
12.0  
12.0  
Q1  
Q1  
Pack Materials-Page 1  
PACKAGE MATERIALS INFORMATION  
www.ti.com  
14-Jul-2012  
*All dimensions are nominal  
Device  
Package Type Package Drawing Pins  
SPQ  
Length (mm) Width (mm) Height (mm)  
TL1431MDREP  
TL1431QDREP  
SOIC  
SOIC  
D
D
8
8
2500  
2500  
367.0  
367.0  
367.0  
367.0  
35.0  
35.0  
Pack Materials-Page 2  
IMPORTANT NOTICE  
Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other  
changes to its semiconductor products and services per JESD46C and to discontinue any product or service per JESD48B. Buyers should  
obtain the latest relevant information before placing orders and should verify that such information is current and complete. All  
semiconductor products (also referred to herein as “components”) are sold subject to TI’s terms and conditions of sale supplied at the time  
of order acknowledgment.  
TI warrants performance of its components to the specifications applicable at the time of sale, in accordance with the warranty in TI’s terms  
and conditions of sale of semiconductor products. Testing and other quality control techniques are used to the extent TI deems necessary  
to support this warranty. Except where mandated by applicable law, testing of all parameters of each component is not necessarily  
performed.  
TI assumes no liability for applications assistance or the design of Buyers’ products. Buyers are responsible for their products and  
applications using TI components. To minimize the risks associated with Buyers’ products and applications, Buyers should provide  
adequate design and operating safeguards.  
TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or  
other intellectual property right relating to any combination, machine, or process in which TI components or services are used. Information  
published by TI regarding third-party products or services does not constitute a license to use such products or services or a warranty or  
endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual property of the  
third party, or a license from TI under the patents or other intellectual property of TI.  
Reproduction of significant portions of TI information in TI data books or data sheets is permissible only if reproduction is without alteration  
and is accompanied by all associated warranties, conditions, limitations, and notices. TI is not responsible or liable for such altered  
documentation. Information of third parties may be subject to additional restrictions.  
Resale of TI components or services with statements different from or beyond the parameters stated by TI for that component or service  
voids all express and any implied warranties for the associated TI component or service and is an unfair and deceptive business practice.  
TI is not responsible or liable for any such statements.  
Buyer acknowledges and agrees that it is solely responsible for compliance with all legal, regulatory and safety-related requirements  
concerning its products, and any use of TI components in its applications, notwithstanding any applications-related information or support  
that may be provided by TI. Buyer represents and agrees that it has all the necessary expertise to create and implement safeguards which  
anticipate dangerous consequences of failures, monitor failures and their consequences, lessen the likelihood of failures that might cause  
harm and take appropriate remedial actions. Buyer will fully indemnify TI and its representatives against any damages arising out of the use  
of any TI components in safety-critical applications.  
In some cases, TI components may be promoted specifically to facilitate safety-related applications. With such components, TI’s goal is to  
help enable customers to design and create their own end-product solutions that meet applicable functional safety standards and  
requirements. Nonetheless, such components are subject to these terms.  
No TI components are authorized for use in FDA Class III (or similar life-critical medical equipment) unless authorized officers of the parties  
have executed a special agreement specifically governing such use.  
Only those TI components which TI has specifically designated as military grade or “enhanced plastic” are designed and intended for use in  
military/aerospace applications or environments. Buyer acknowledges and agrees that any military or aerospace use of TI components  
which have not been so designated is solely at the Buyer's risk, and that Buyer is solely responsible for compliance with all legal and  
regulatory requirements in connection with such use.  
TI has specifically designated certain components which meet ISO/TS16949 requirements, mainly for automotive use. Components which  
have not been so designated are neither designed nor intended for automotive use; and TI will not be responsible for any failure of such  
components to meet such requirements.  
Products  
Audio  
Applications  
www.ti.com/audio  
amplifier.ti.com  
dataconverter.ti.com  
www.dlp.com  
Automotive and Transportation www.ti.com/automotive  
Communications and Telecom www.ti.com/communications  
Amplifiers  
Data Converters  
DLP® Products  
DSP  
Computers and Peripherals  
Consumer Electronics  
Energy and Lighting  
Industrial  
www.ti.com/computers  
www.ti.com/consumer-apps  
www.ti.com/energy  
dsp.ti.com  
Clocks and Timers  
Interface  
www.ti.com/clocks  
interface.ti.com  
logic.ti.com  
www.ti.com/industrial  
www.ti.com/medical  
www.ti.com/security  
Medical  
Logic  
Security  
Power Mgmt  
Microcontrollers  
RFID  
power.ti.com  
Space, Avionics and Defense www.ti.com/space-avionics-defense  
microcontroller.ti.com  
www.ti-rfid.com  
Video and Imaging  
www.ti.com/video  
OMAP Mobile Processors www.ti.com/omap  
Wireless Connectivity www.ti.com/wirelessconnectivity  
TI E2E Community  
e2e.ti.com  
Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265  
Copyright © 2012, Texas Instruments Incorporated  

相关型号:

TL1431-Q1

PRECISION PROGRAMMABLE REFERENCE
TI

TL1431-SP

CLASS V, PRECISION PROGRAMMABLE REFERENCE
TI

TL1431-SP_V01

CLASS V, PRECISION PROGRAMMABLE REFERENCE
TI

TL1431AC

PROGRAMMABLE VOLTAGE REFERENCE
STMICROELECTR

TL1431ACCT

Adjustable Voltage Reference
STMICROELECTR

TL1431ACD

PROGRAMMABLE VOLTAGE REFERENCE
STMICROELECTR

TL1431ACDT

Programmable Voltage Reference
STMICROELECTR

TL1431ACZ

PROGRAMMABLE VOLTAGE REFERENCE
STMICROELECTR

TL1431ACZ-AP

Programmable voltage reference
STMICROELECTR

TL1431ACZAP

Programmable Voltage Reference
STMICROELECTR

TL1431ACZT

Programmable Voltage Reference
STMICROELECTR

TL1431AI

PROGRAMMABLE VOLTAGE REFERENCE
STMICROELECTR