View TL431SDT215_581747.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

TL431 family
Adjustable precision shunt regulator
Rev. 3 -- 5 November 2010 Product data sheet
1. General description
Three-terminal shunt regulator family with an output voltage range between Vref and 36 V, to be set by two external resistors.
* The TL431xDBZR types feature an enhanced stability area with a very low
load capacity requirement.
* The TL431xFDT types offer an enhanced stability area and a higher
ElectroMagnetic Interference (EMI) ruggedness, e.g. for Switch Mode Power Supply (SMPS) applications.
* The TL431xSDT types are designed for standard requirements and linear
applications.
Table 1. Product overview Temperature range (Tamb) 0 to 70 C TL431CDBZR -40 to 85 C TL431IDBZR -40 to 125 C TL431QDBZR TL431FDT TL431MFDT TL431SDT TL431MSDT 1% TL431ACDBZR TL431AIDBZR TL431AFDT TL431AMFDT TL431ASDT TL431AMSDT 0.5 % TL431BCDBZR TL431BIDBZR TL431BFDT TL431BMFDT TL431BSDT TL431BMSDT Pinning configuration (see Table 5) normal pinning normal pinning mirrored pinning normal pinning mirrored pinning normal pinning mirrored pinning normal pinning mirrored pinning normal pinning mirrored pinning normal pinning mirrored pinning
Reference voltage tolerance (Vref) 2%
TL431AQDBZR normal pinning
TL431BQDBZR normal pinning
NXP Semiconductors
TL431 family
Adjustable precision shunt regulator
2. Features and benefits
Programmable output voltage up to 36 V Three different reference voltage tolerances: Standard grade: 2 % A-Grade: 1 % B-Grade: 0.5 % Typical temperature drift: 6 mV (in a range of 0 C up to 70 C) Low output noise Typical output impedance: 0.2 Sink current capability: 1 mA to 100 mA AEC-Q100 qualified (grade 1)
3. Applications
Shunt regulator Precision current limiter Precision constant current sink Isolated feedback loop for Switch Mode Power Supply (SMPS)
4. Quick reference data
Table 2. Symbol VKA IK Vref Quick reference data Parameter cathode-anode voltage cathode current reference voltage Standard-Grade (2 %) A-Grade (1 %) B-Grade (0.5 %) VKA = Vref; IK = 10 mA 2440 2470 2483 2495 2495 2495 2550 2520 2507 mV mV mV Conditions Min Vref 1 Typ Max 36 100 Unit V mA
TL431_FAM
All information provided in this document is subject to legal disclaimers.
(c) NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 3 -- 5 November 2010
2 of 28
NXP Semiconductors
TL431 family
Adjustable precision shunt regulator
5. Ordering information
Table 3. Ordering information Package Name TL431CDBZR TL431IDBZR TL431QDBZR TL431FDT TL431MFDT TL431SDT TL431MSDT TL431ACDBZR TL431AIDBZR TL431AQDBZR TL431AFDT TL431AMFDT TL431ASDT TL431AMSDT TL431BCDBZR TL431BIDBZR TL431BQDBZR TL431BFDT TL431BMFDT TL431BSDT TL431BMSDT Description plastic surface-mounted package; 3 leads Version SOT23 Type number
TL431_FAM
All information provided in this document is subject to legal disclaimers.
(c) NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 3 -- 5 November 2010
3 of 28
NXP Semiconductors
TL431 family
Adjustable precision shunt regulator
6. Marking
Table 4. Marking codes Marking code[1] CA* CB* CC* AR* AU* RM* LR* CD* CE* CF* AS* AV* Type number TL431ASDT TL431AMSDT TL431BCDBZR TL431BIDBZR TL431BQDBZR TL431BFDT TL431BMFDT TL431BSDT TL431BMSDT Marking code[1] RL* LQ* CG* CH* CJ* AT* AW* MA* MB* Type number TL431CDBZR TL431IDBZR TL431QDBZR TL431FDT TL431MFDT TL431SDT TL431MSDT TL431ACDBZR TL431AIDBZR TL431AQDBZR TL431AFDT TL431AMFDT
[1]
* = placeholder for manufacturing site code
7. Functional diagram
The TL431 family comprises a range of 3-terminal adjustable shunt regulators, with specified thermal stability over applicable automotive and commercial temperature ranges. The output voltage may be set to any value between Vref (approximately 2.5 V) and 36 V with two external resistors (see Figure 8). These devices have a typical output impedance of 0.2 . Active output circuitry provides a very sharp turn-on characteristic, making these devices excellent replacements for Zener diodes in many applications like on-board regulation, adjustable power supplies and switching power supplies.
CATHODE
REF
Vref
ANODE
006aab569
Fig 1.
Functional diagram
TL431_FAM
All information provided in this document is subject to legal disclaimers.
(c) NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 3 -- 5 November 2010
4 of 28
NXP Semiconductors
TL431 family
Adjustable precision shunt regulator
8. Pinning information
Table 5. Pin 1 2 3 Pinning Symbol k REF a Description cathode reference anode
1 2 3 a REF k
006aab355
Simplified outline
Graphic symbol
Normal pinning: All types without MFDT and MSDT ending
Mirrored pinning: All types with MFDT and MSDT ending 1 2 3 REF k a reference cathode anode
1 2 3 a REF k
006aab355
9. Limiting values
Table 6. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Symbol VKA IK Iref Ptot Parameter cathode-anode voltage cathode current reference current total power dissipation Tamb 25 C
[1] [2] [3]
Conditions
Min -100 -0.05 0 -40 -40
Max 37 150 10 350 580 950 150 +70 +85 +125
Unit V mA mA mW mW mW C C C C
Tj Tamb
junction temperature ambient temperature TL431XCDBZR TL431XIDBZR TL431XQDBZR TL431XFDT TL431XSDT
Tstg
[1] [2] [3]
storage temperature
-65
+150
C
Device mounted on an FR4 Printed-Circuit Board (PCB), single-sided copper, tin-plated and standard footprint. Device mounted on an FR4 PCB, single-sided copper, tin-plated, mounting pad for anode 1 cm2. Device mounted on a ceramic PCB, Al2O3, standard footprint.
TL431_FAM
All information provided in this document is subject to legal disclaimers.
(c) NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 3 -- 5 November 2010
5 of 28
NXP Semiconductors
TL431 family
Adjustable precision shunt regulator
1250 Ptot (mW) 1000
(1)
006aab570
750
(2)
500
(3)
250
0 -75
-25
25
75
125 175 Tamb (C)
(1) Ceramic PCB, Al2O3, standard footprint (2) FR4 PCB, mounting pad for anode 1 cm2 (3) FR4 PCB, standard footprint
Fig 2.
Power derating curves
Table 7. ESD maximum ratings Tamb = 25 C unless otherwise specified. Symbol VESD Parameter electrostatic discharge voltage Conditions MIL-STD-883 (human body model) Min Max 4 Unit kV
10. Recommended operating conditions
Table 8. Symbol VKA IK Operating conditions Parameter cathode-anode voltage cathode current Conditions Min Vref 1 Max 36 100 Unit V mA
TL431_FAM
All information provided in this document is subject to legal disclaimers.
(c) NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 3 -- 5 November 2010
6 of 28
NXP Semiconductors
TL431 family
Adjustable precision shunt regulator
11. Thermal characteristics
Table 9. Symbol Rth(j-a) Thermal characteristics Parameter thermal resistance from junction to ambient Conditions in free air
[1] [2] [3]
Min -
Typ -
Max 360 216 132 50
Unit K/W K/W K/W K/W
Rth(j-sp)
[1] [2] [3] [4]
thermal resistance from junction to solder point
[4]
Device mounted on an FR4 PCB, single-sided copper, tin-plated and standard footprint. Device mounted on an FR4 PCB, single-sided copper, tin-plated, mounting pad for anode 1 cm2. Device mounted on a ceramic PCB, Al2O3, standard footprint. Soldering point of anode.
12. Characteristics
Table 10. Symbol Characteristics Parameter Conditions Min Typ Max Unit
Standard-Grade (2 %): TL431CDBZR; TL431IDBZR; TL431QDBZR; TL431FDT; TL431MFDT; TL431SDT; TL431MSDT Vref Vref reference voltage reference voltage variation TL431CDBZR TL431IDBZR TL431QDBZR TL431FDT TL431MFDT TL431SDT TL431MSDT Vref/VKA reference voltage variation to cathode-anode voltage variation ratio Iref Iref reference current reference current variation TL431CDBZR TL431IDBZR TL431QDBZR TL431FDT TL431MFDT TL431SDT TL431MSDT IK(min) minimum cathode current VKA = Vref; IK = 10 mA VKA = Vref; IK = 10 mA Tamb = 0 C to 70 C Tamb = -40 C to 85 C Tamb = -40 C to 125 C 6 14 16 34 mV mV 2440 2495 2550 mV
IK = 10 mA VKA = 10 V to Vref VKA = 36 V to 10 V IK = 10 mA; R1 = 10 k; R2 = open IK = 10 mA; R1 = 10 k; R2 = open Tamb = 0 C to 70 C Tamb = -40 C to 85 C Tamb = -40 C to 125 C 0.4 0.8 1.2 2.5 A A -1.4 -1 2 -2.7 -2 4 mV/V mV/V A
VKA = Vref
-
0.4
1
mA
TL431_FAM
All information provided in this document is subject to legal disclaimers.
(c) NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 3 -- 5 November 2010
7 of 28
NXP Semiconductors
TL431 family
Adjustable precision shunt regulator
Table 10. Symbol Ioff ZKA
Characteristics ...continued Parameter off-state current dynamic cathode-anode impedance Conditions VKA = 36 V; Vref = 0 IK = 1 mA to 100 mA; VKA = Vref; f < 1 kHz Min Typ 0.1 0.2 Max 1 0.5 Unit A
A-Grade (1 %): TL431ACDBZR; TL431AIDBZR; TL431AQDBZR; TL431AFDT; TL431AMFDT; TL431ASDT; TL431AMSDT Vref Vref reference voltage reference voltage variation TL431ACDBZR TL431AIDBZR TL431AQDBZR TL431AFDT TL431AMFDT TL431ASDT TL431AMSDT Vref/VKA reference voltage variation to cathode-anode voltage variation ratio Iref Iref reference current reference current variation TL431ACDBZR TL431AIDBZR TL431AQDBZR TL431AFDT TL431AMFDT TL431ASDT TL431AMSDT IK(min) minimum cathode current TL431ACDBZR TL431AIDBZR TL431AQDBZR TL431AFDT TL431AMFDT TL431ASDT TL431AMSDT Ioff ZKA off-state current dynamic cathode-anode impedance VKA = Vref; IK = 10 mA VKA = Vref; IK = 10 mA Tamb = 0 C to 70 C Tamb = -40 C to 85 C Tamb = -40 C to 125 C 6 14 16 34 mV mV 2470 2495 2520 mV
IK = 10 mA VKA = 10 V to Vref VKA = 36 V to 10 V IK = 10 mA; R1 = 10 k; R2 = open IK = 10 mA; R1 = 10 k; R2 = open Tamb = 0 C to 70 C Tamb = -40 C to 85 C Tamb = -40 C to 125 C 0.4 0.8 1.2 2.5 A A -1.4 -1 2 -2.7 -2 4 mV/V mV/V A
VKA = Vref Tamb = 0 C to 70 C Tamb = -40 C to 85 C Tamb = -40 C to 125 C 0.4 0.4 0.6 0.7 mA mA
VKA = 36 V; Vref = 0 IK = 1 mA to 100 mA; VKA = Vref; f < 1 kHz
-
0.1 0.2
0.5 0.5
A
TL431_FAM
All information provided in this document is subject to legal disclaimers.
(c) NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 3 -- 5 November 2010
8 of 28
NXP Semiconductors
TL431 family
Adjustable precision shunt regulator
Table 10. Symbol
Characteristics ...continued Parameter Conditions Min Typ Max Unit
B-Grade (0.5 %): TL431BCDBZR; TL431BIDBZR; TL431BQDBZR; TL431BFDT; TL431BMFDT; TL431BSDT; TL431BMSDT Vref Vref reference voltage reference voltage variation TL431BCDBZR TL431BIDBZR TL431BQDBZR TL431BFDT TL431BMFDT TL431BSDT TL431BMSDT Vref/VKA reference voltage variation to cathode-anode voltage variation ratio Iref Iref reference current reference current variation TL431BCDBZR TL431BIDBZR TL431BQDBZR TL431BFDT TL431BMFDT TL431BSDT TL431BMSDT IK(min) minimum cathode current TL431BCDBZR TL431BIDBZR TL431BQDBZR TL431BFDT TL431BMFDT TL431BSDT TL431BMSDT Ioff ZKA off-state current dynamic cathode-anode impedance VKA = Vref; IK = 10 mA VKA = Vref; IK = 10 mA Tamb = 0 C to 70 C Tamb = -40 C to 85 C Tamb = -40 C to 125 C 6 14 16 34 mV mV 2483 2495 2507 mV
IK = 10 mA VKA = 10 V to Vref VKA = 36 V to 10 V IK = 10 mA; R1 = 10 k; R2 = open IK = 10 mA; R1 = 10 k; R2 = open Tamb = 0 C to 70 C Tamb = -40 C to 85 C Tamb = -40 C to 125 C 0.4 0.8 1.2 2.5 A A -1.4 -1 2 -2.7 -2 4 mV/V mV/V A
VKA = Vref Tamb = 0 C to 70 C Tamb = -40 C to 85 C Tamb = -40 C to 125 C 0.4 0.4 0.6 0.7 mA mA
VKA = 36 V; Vref = 0 IK = 1 mA to 100 mA; VKA = Vref; f < 1 kHz
-
0.1 0.2
0.5 0.5
A
TL431_FAM
All information provided in this document is subject to legal disclaimers.
(c) NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 3 -- 5 November 2010
9 of 28
NXP Semiconductors
TL431 family
Adjustable precision shunt regulator
2.60 Vref (V) 2.56
006aab571
150 IK (mA) 100
006aab572
2.52
50
2.48
0
2.44
-50
2.40 -75
-25
25
75
125 Tamb (C)
-100
-2
-1
0
1
2 VKA (V)
3
IK = 10 mA; VKA = Vref
VKA = Vref; Tamb = 25 C
Fig 3.
Reference voltage as a function of ambient temperature; typical values
INPUT
Fig 4.
Cathode current as a function of cathode-anode voltage; typical values
VKA
IK
Vref
GND
006aab573
IK = 10 mA; VKA = Vref
Fig 5.
Test circuit to Figure 3 and Figure 4
TL431_FAM
All information provided in this document is subject to legal disclaimers.
(c) NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 3 -- 5 November 2010
10 of 28
NXP Semiconductors
TL431 family
Adjustable precision shunt regulator
5.0 Iref (A) 4.0
006aab574
0 Vref (mV) -20
006aab575
3.0
2.0 -40 1.0
0.0 -75
-25
25
75
125 Tamb (C)
-60
0
10
20
30 VKA (V)
40
IK = 10 mA; R1 = 10 k; R2 = open
IK = 10 mA; Tamb = 25 C
Fig 6.
Reference current as a function of ambient temperature; typical values
INPUT
Fig 7.
Reference voltage variation as a function of cathode-anode voltage; typical values
VKA
IK
R1
Iref
R2
Vref
GND
006aab576
R1 V KA = V ref x 1 + ------ + I ref x R1 R2 Fig 8. Test circuit to Figure 6 and Figure 7
TL431_FAM
All information provided in this document is subject to legal disclaimers.
(c) NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 3 -- 5 November 2010
11 of 28
NXP Semiconductors
TL431 family
Adjustable precision shunt regulator
250 Ioff (nA) 200
006aab577
150
100
50
0 -75
-25
25
75
125 Tamb (C)
VKA = 36 V; Vref = 0 V
Fig 9.
Off-state current as a function of ambient temperature; typical values
INPUT Ioff VKA
GND
006aab578
VKA = 36 V; Vref = 0 V
Fig 10. Off-state current as a function of ambient temperature; test circuit
TL431_FAM
All information provided in this document is subject to legal disclaimers.
(c) NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 3 -- 5 November 2010
12 of 28
NXP Semiconductors
TL431 family
Adjustable precision shunt regulator
6 Vin; Vout (V) 4
(1)
006aab579
6 Vin; Vout (V) 4
(1)
006aac478
(2)
(2)
2
2
0
-1
0 1 3 5 t (s) 7
-1
1
3
5 t (s)
7
Tamb = 25 C (1) Input (2) Output
Tamb = 25 C (1) Input (2) Output
Fig 11. All types except TL431XFDT and TL431XSDT: Input voltage and output voltage as a function of time; typical values
6 Vin; Vout (V) 4
(1) 006aab580
Fig 12. TL431XFDT: Input voltage and output voltage as a function of time; typical values
220
VKA
(2)
2
PULSE GENERATOR f = 100 kHz
50
0
-1
1
3
5 t (s)
7
GND
006aab581
Tamb = 25 C (1) Input (2) Output
Tamb = 25 C
Fig 13. TL431XSDT: Input voltage and output voltage as a function of time; typical values
Fig 14. Test circuit to Figure 11, Figure 12 and Figure 13
TL431_FAM
All information provided in this document is subject to legal disclaimers.
(c) NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 3 -- 5 November 2010
13 of 28
NXP Semiconductors
TL431 family
Adjustable precision shunt regulator
60 Av (dB) 40
006aab583
60 Av (dB) 40
006aac479
20
20
0 1 10
102
103 f (kHz)
104
0 1 10
102
103 f (kHz)
104
IK = 10 mA; Tamb = 25 C
IK = 10 mA; Tamb = 25 C
Fig 15. All types except TL431XFDT and TL431XSDT: Voltage amplification as a function of frequency; typical values
60 Av (dB) 40
006aab582
Fig 16. TL431XFDT: Voltage amplification as a function of frequency; typical values
VKA
15 k
IK
232
9 pF
20
8.25 k
0 1 10
102
103 f (kHz)
104
GND
006aab584
IK = 10 mA; Tamb = 25 C
IK = 10 mA; Tamb = 25 C
Fig 17. TL431XSDT: Voltage amplification as a function of frequency; typical values
Fig 18. Test circuit to Figure 15, Figure 16 and Figure 17
TL431_FAM
All information provided in this document is subject to legal disclaimers.
(c) NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 3 -- 5 November 2010
14 of 28
NXP Semiconductors
TL431 family
Adjustable precision shunt regulator
102 ZKA () 10
006aab585
102 ZKA () 10
006aac480
1
1
10-1 1 10
102
103 f (kHz)
104
10-1 1 10
102
103 f (kHz)
104
IK = 10 mA; Tamb = 25 C
IK = 10 mA; Tamb = 25 C
Fig 19. All types except TL431XFDT and TL431XSDT: Dynamic cathode-anode impedance as a function of frequency; typical values
102 ZKA () 10
006aab586
Fig 20. TL431XFDT: Dynamic cathode-anode impedance as a function of frequency; typical values
VKA
1 k
IK 1
50
10-1 1 10
102
103 f (kHz)
104
GND
006aab587
IK = 10 mA; Tamb = 25 C
IK = 10 mA; Tamb = 25 C
Fig 21. TL431XSDT: Dynamic cathode-anode impedance as a function of frequency; typical values
Fig 22. Test circuit to Figure 19, Figure 20 and Figure 21
TL431_FAM
All information provided in this document is subject to legal disclaimers.
(c) NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 3 -- 5 November 2010
15 of 28
NXP Semiconductors
TL431 family
Adjustable precision shunt regulator
100 IK (mA) 80
(1) (1)
006aab588
60 Stable Oscillation Stable
40
20
0 1 10
102
103 CL (nF)
104
Tamb = 25 C (1) VKA = Vref VKA = 5 V: no oscillation VKA = 10 V: no oscillation VKA = 15 V: no oscillation
Fig 23. All types except TL431XFDT and TL431XSDT: Cathode current as a function of load capacitance; typical values
150
IK
CL CL
R1 = 10 k
IK
150
VBATT
R2
VBATT
GND
006aab589
GND
006aab590
VKA = Vref Tamb = 25 C
VKA > 5 V: stable operation Tamb = 25 C
Fig 24. Test circuit (1) to Figure 23
Fig 25. Test circuit (2) to Figure 23
TL431_FAM
All information provided in this document is subject to legal disclaimers.
(c) NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 3 -- 5 November 2010
16 of 28
NXP Semiconductors
TL431 family
Adjustable precision shunt regulator
100 IK (mA) 80
(1) (1)
006aac481
60
Stable 40
Oscillation
Stable
20
0 10-1
1
10
102
103 CL (nF)
104
Tamb = 25 C (1) VKA = Vref VKA = 5 V: no oscillation VKA = 10 V: no oscillation VKA = 15 V: no oscillation
Fig 26. TL431XFDT: Cathode current as a function of load capacitance; typical values
150
IK
CL CL
R1 = 10 k
IK
150
VBATT
R2
VBATT
GND
006aab589
GND
006aab590
VKA = Vref Tamb = 25 C
VKA > 5 V: stable operation Tamb = 25 C
Fig 27. Test circuit (1) to Figure 26
Fig 28. Test circuit (2) to Figure 26
TL431_FAM
All information provided in this document is subject to legal disclaimers.
(c) NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 3 -- 5 November 2010
17 of 28
NXP Semiconductors
TL431 family
Adjustable precision shunt regulator
100 IK (mA) 80
(1) (2) (2) (1)
006aab591
60
Stable 40
Oscillation
Stable
20
0 10-1
1
10
102
103 CL (nF)
104
Tamb = 25 C (1) VKA = Vref (2) VKA = 5 V VKA = 10 V: no oscillation VKA = 15 V: no oscillation
Fig 29. TL431XSDT: Cathode current as a function of load capacitance; typical values
150
IK
CL CL
R1 = 10 k
IK
150
VBATT
R2
VBATT
GND
006aab589
GND
006aab590
VKA = Vref Tamb = 25 C
VKA = 5 V VKA > 10 V: stable operation Tamb = 25 C
Fig 30. Test circuit (1) to Figure 29
Fig 31. Test circuit (2) to Figure 29
TL431_FAM
All information provided in this document is subject to legal disclaimers.
(c) NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 3 -- 5 November 2010
18 of 28
NXP Semiconductors
TL431 family
Adjustable precision shunt regulator
13. Application information
V+ VOUT
R1
R2
006aab592
R1 V OUT = 1 + ------ x V ref R2 Fig 32. Shunt regulator
V+ VOUT
R1
R2
006aab593
R1 V OUT = 1 + ------ x V ref; V OUT ( min ) = V ref + V be R2 Fig 33. Series pass regulator
V+
VOUT VIN
006aab594
V th = V ref V IN < V ref V OUT > 0 V IN > V ref V OUT 2V Fig 34. Single-supply comparator with temperature-compensated threshold
TL431_FAM
All information provided in this document is subject to legal disclaimers.
(c) NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 3 -- 5 November 2010
19 of 28
NXP Semiconductors
TL431 family
Adjustable precision shunt regulator
RCL
V+
IOUT
006aab595
V ref I OUT = --------R CL Fig 35. Constant current source
V+ VOUT
R1
R2
006aab596
R1 V OUT = 1 + ------ x V ref R2 Fig 36. High-current shunt regulator
V+ ISINK
RS
006aab597
V ref I SINK = --------RS Fig 37. Constant current sink
TL431_FAM
All information provided in this document is subject to legal disclaimers.
(c) NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 3 -- 5 November 2010
20 of 28
NXP Semiconductors
TL431 family
Adjustable precision shunt regulator
REGULATOR LINE
VOUT
GND
R3
R1
REF
R2
GND
006aac482
Fig 38. TL431 in control loop of SMPS
14. Test information
14.1 Quality information
This product has been qualified in accordance with the Automotive Electronics Council (AEC) standard Q100 - Failure mechanism based stress test qualification for integrated circuits, and is suitable for use in automotive applications.
TL431_FAM
All information provided in this document is subject to legal disclaimers.
(c) NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 3 -- 5 November 2010
21 of 28
NXP Semiconductors
TL431 family
Adjustable precision shunt regulator
15. Package outline
3.0 2.8
3
1.1 0.9
0.45 0.15 2.5 1.4 2.1 1.2
1
2
1.9 Dimensions in mm
0.48 0.38
0.15 0.09 04-11-04
Fig 39. Package outline SOT23 (TO-236AB)
TL431_FAM
All information provided in this document is subject to legal disclaimers.
(c) NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 3 -- 5 November 2010
22 of 28
NXP Semiconductors
TL431 family
Adjustable precision shunt regulator
16. Packing information
Table 11. Packing methods The indicated -xxx are the last three digits of the 12NC ordering code.[1] Type number TL431CDBZR TL431IDBZR TL431QDBZR TL431FDT TL431MFDT TL431SDT TL431MSDT TL431ACDBZR TL431AIDBZR TL431AQDBZR TL431AFDT TL431AMFDT TL431ASDT TL431AMSDT TL431BCDBZR TL431BIDBZR TL431BQDBZR TL431BFDT TL431BMFDT TL431BSDT TL431BMSDT
[1] For further information and the availability of packing methods, see Section 20.
Package SOT23
Description 4 mm pitch, 8 mm tape and reel
Packing quantity 3000 -215 10000 -235
TL431_FAM
All information provided in this document is subject to legal disclaimers.
(c) NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 3 -- 5 November 2010
23 of 28
NXP Semiconductors
TL431 family
Adjustable precision shunt regulator
17. Soldering
3.3 2.9 1.9
solder lands solder resist 3 1.7 2 solder paste 0.6 (3x) occupied area Dimensions in mm 0.5 (3x) 0.6 (3x) 1
sot023_fr
0.7 (3x)
Fig 40. Reflow soldering footprint SOT23 (TO-236AB)
2.2 1.2 (2x)
1.4 (2x) solder lands 4.6 2.6 solder resist occupied area Dimensions in mm 1.4
preferred transport direction during soldering 2.8 4.5
sot023_fw
Fig 41. Wave soldering footprint SOT23 (TO-236AB)
TL431_FAM
All information provided in this document is subject to legal disclaimers.
(c) NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 3 -- 5 November 2010
24 of 28
NXP Semiconductors
TL431 family
Adjustable precision shunt regulator
18. Revision history
Table 12. Revision history Release date 20101105 Data sheet status Product data sheet Change notice Supersedes TL431_FAM_2 Document ID TL431_FAM_3 Modifications:
* * * *
Type numbers TL431FDT, TL431MFDT, TL431AFDT, TL431AMFDT, TL431BFDT and TL431BMFDT added Section 12 "Characteristics": added Figure 12, Figure 16, Figure 20 and Figure 26 Section 13 "Application information": added Figure 38 Section 19 "Legal information": updated Product data sheet Product data sheet TL431_FAM_1 -
TL431_FAM_2 TL431_FAM_1
20100120 20090806
TL431_FAM
All information provided in this document is subject to legal disclaimers.
(c) NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 3 -- 5 November 2010
25 of 28
NXP Semiconductors
TL431 family
Adjustable precision shunt regulator
19. Legal information
19.1 Data sheet status
Document status[1][2] Objective [short] data sheet Preliminary [short] data sheet Product [short] data sheet
[1] [2] [3]
Product status[3] Development Qualification Production
Definition This document contains data from the objective specification for product development. This document contains data from the preliminary specification. This document contains the product specification.
Please consult the most recently issued document before initiating or completing a design. The term `short data sheet' is explained in section "Definitions". The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple devices. The latest product status information is available on the Internet at URL http://www.nxp.com.
19.2 Definitions
Draft -- The document is a draft version only. The content is still under internal review and subject to formal approval, which may result in modifications or additions. NXP Semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information. Short data sheet -- A short data sheet is an extract from a full data sheet with the same product type number(s) and title. A short data sheet is intended for quick reference only and should not be relied upon to contain detailed and full information. For detailed and full information see the relevant full data sheet, which is available on request via the local NXP Semiconductors sales office. In case of any inconsistency or conflict with the short data sheet, the full data sheet shall prevail. Product specification -- The information and data provided in a Product data sheet shall define the specification of the product as agreed between NXP Semiconductors and its customer, unless NXP Semiconductors and customer have explicitly agreed otherwise in writing. In no event however, shall an agreement be valid in which the NXP Semiconductors product is deemed to offer functions and qualities beyond those described in the Product data sheet.
malfunction of an NXP Semiconductors product can reasonably be expected to result in personal injury, death or severe property or environmental damage. NXP Semiconductors accepts no liability for inclusion and/or use of NXP Semiconductors products in such equipment or applications and therefore such inclusion and/or use is at the customer's own risk. Applications -- Applications that are described herein for any of these products are for illustrative purposes only. NXP Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. Customers are responsible for the design and operation of their applications and products using NXP Semiconductors products, and NXP Semiconductors accepts no liability for any assistance with applications or customer product design. It is customer's sole responsibility to determine whether the NXP Semiconductors product is suitable and fit for the customer's applications and products planned, as well as for the planned application and use of customer's third party customer(s). Customers should provide appropriate design and operating safeguards to minimize the risks associated with their applications and products. NXP Semiconductors does not accept any liability related to any default, damage, costs or problem which is based on any weakness or default in the customer's applications or products, or the application or use by customer's third party customer(s). Customer is responsible for doing all necessary testing for the customer's applications and products using NXP Semiconductors products in order to avoid a default of the applications and the products or of the application or use by customer's third party customer(s). NXP does not accept any liability in this respect. Limiting values -- Stress above one or more limiting values (as defined in the Absolute Maximum Ratings System of IEC 60134) will cause permanent damage to the device. Limiting values are stress ratings only and (proper) operation of the device at these or any other conditions above those given in the Recommended operating conditions section (if present) or the Characteristics sections of this document is not warranted. Constant or repeated exposure to limiting values will permanently and irreversibly affect the quality and reliability of the device. Terms and conditions of commercial sale -- NXP Semiconductors products are sold subject to the general terms and conditions of commercial sale, as published at http://www.nxp.com/profile/terms, unless otherwise agreed in a valid written individual agreement. In case an individual agreement is concluded only the terms and conditions of the respective agreement shall apply. NXP Semiconductors hereby expressly objects to applying the customer's general terms and conditions with regard to the purchase of NXP Semiconductors products by customer. No offer to sell or license -- Nothing in this document may be interpreted or construed as an offer to sell products that is open for acceptance or the grant, conveyance or implication of any license under any copyrights, patents or other industrial or intellectual property rights. Export control -- This document as well as the item(s) described herein may be subject to export control regulations. Export might require a prior authorization from national authorities.
(c) NXP B.V. 2010. All rights reserved.
19.3 Disclaimers
Limited warranty and liability -- Information in this document is believed to be accurate and reliable. However, NXP Semiconductors does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. In no event shall NXP Semiconductors be liable for any indirect, incidental, punitive, special or consequential damages (including - without limitation - lost profits, lost savings, business interruption, costs related to the removal or replacement of any products or rework charges) whether or not such damages are based on tort (including negligence), warranty, breach of contract or any other legal theory. Notwithstanding any damages that customer might incur for any reason whatsoever, NXP Semiconductors' aggregate and cumulative liability towards customer for the products described herein shall be limited in accordance with the Terms and conditions of commercial sale of NXP Semiconductors. Right to make changes -- NXP Semiconductors reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. This document supersedes and replaces all information supplied prior to the publication hereof. Suitability for use -- NXP Semiconductors products are not designed, authorized or warranted to be suitable for use in life support, life-critical or safety-critical systems or equipment, nor in applications where failure or
TL431_FAM
All information provided in this document is subject to legal disclaimers.
Product data sheet
Rev. 3 -- 5 November 2010
26 of 28
NXP Semiconductors
TL431 family
Adjustable precision shunt regulator
Quick reference data -- The Quick reference data is an extract of the product data given in the Limiting values and Characteristics sections of this document, and as such is not complete, exhaustive or legally binding.
19.4 Trademarks
Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners.
20. Contact information
For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com
TL431_FAM
All information provided in this document is subject to legal disclaimers.
(c) NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 3 -- 5 November 2010
27 of 28
NXP Semiconductors
TL431 family
Adjustable precision shunt regulator
21. Contents
1 2 3 4 5 6 7 8 9 10 11 12 13 14 14.1 15 16 17 18 19 19.1 19.2 19.3 19.4 20 21 General description . . . . . . . . . . . . . . . . . . . . . . 1 Features and benefits . . . . . . . . . . . . . . . . . . . . 2 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Quick reference data . . . . . . . . . . . . . . . . . . . . . 2 Ordering information . . . . . . . . . . . . . . . . . . . . . 3 Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Functional diagram . . . . . . . . . . . . . . . . . . . . . . 4 Pinning information . . . . . . . . . . . . . . . . . . . . . . 5 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 5 Recommended operating conditions. . . . . . . . 6 Thermal characteristics . . . . . . . . . . . . . . . . . . 7 Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Application information. . . . . . . . . . . . . . . . . . 19 Test information . . . . . . . . . . . . . . . . . . . . . . . . 21 Quality information . . . . . . . . . . . . . . . . . . . . . 21 Package outline . . . . . . . . . . . . . . . . . . . . . . . . 22 Packing information . . . . . . . . . . . . . . . . . . . . 23 Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Revision history . . . . . . . . . . . . . . . . . . . . . . . . 25 Legal information. . . . . . . . . . . . . . . . . . . . . . . 26 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 26 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Contact information. . . . . . . . . . . . . . . . . . . . . 27 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Please be aware that important notices concerning this document and the product(s) described herein, have been included in section `Legal information'.
(c) NXP B.V. 2010.
All rights reserved.
For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com Date of release: 5 November 2010 Document identifier: TL431_FAM

▲Up To Search▲

Price & Availability of TL431SDT215

	To Download TL431SDT215 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .