shunt regulators. TL431 Datasheet

TL431 regulators. Datasheet pdf. Equivalent


nexperia TL431
TL431 family
Adjustable precision shunt regulators
Rev. 6 — 9 January 2019
Product data sheet
1. Product profile
1.1. General description
Three-terminal shunt regulator family with an output voltage range between
Vref = 2.495 V and 36 V, to be set by two external resistors.
Table 1. Product overview
Reference voltage Temperature range (Tamb)
tolerance (Vref)
0 °C to 70 °C
-40 °C to 85 °C
2.0 %
TL431CDBZR
TL431IDBZR
1.0 %
TL431ACDBZR
TL431AIDBZR
0.5 %
TL431BCDBZR
TL431BIDBZR
-40 °C to 125 °C
TL431QDBZR
TL431FDT
TL431MFDT
TL431AQDBZR
TL431AFDT
TL431AMFDT
TL431BQDBZR
TL431BFDT
TL431BMFDT
Pinning configuration
(see Table 5)
normal pinning
normal pinning
mirrored pinning
normal pinning
normal pinning
mirrored pinning
normal pinning
normal pinning
mirrored pinning
1.2. 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: 9 mV (in a range of 0 °C up to 70 °C)
Low output noise
Typical output impedance: 0.2 Ω
Sink current capability: 1 mA to 100 mA
AEC-Q100 qualified (grade 1)


TL431 Datasheet
Recommendation TL431 Datasheet
Part TL431
Description Adjustable precision shunt regulators
Feature TL431; TL431 family Adjustable precision shunt regulators Rev. 6 — 9 January 2019 Product data sheet 1. P.
Manufacture nexperia
Datasheet
Download TL431 Datasheet




nexperia TL431
Nexperia
TL431 family
Adjustable precision shunt regulators
1.3. Applications
Shunt regulator
Precision current limiter
Precision constant current sink
Isolated feedback loop for Switch Mode Power Supply (SMPS)
1.4. Quick reference data
Table 2. Quick reference data
Symbol Parameter
Conditions
VKA cathode-anode voltage
IK cathode current
Vref reference voltage
VKA = Vref; IK = 10 mA;
Standard-Grade (2.0 %) Tamb = 25 °C
A-Grade (1.0 %)
B-Grade (0.5 %)
Min Typ Max Unit
Vref -
36 V
1-
100 mA
2440 2495 2550 mV
2470 2495 2520 mV
2483 2495 2507 mV
2. Pinning information
Table 3. Pinning
Pin Symbol
Description
Simplified outline
SOT23; normal pinning: All types without MFDT ending
1K
cathode
3
2
REF
reference
3A
anode
Graphic symbol
REF
A
K
006aab355
1
SOT23; mirrored pinning: All types with MFDT ending
1
REF
reference
2K
cathode
3A
anode
2
3
REF
A
K
006aab355
12
TL431_FAM
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 6 — 9 January 2019
© Nexperia B.V. 2019. All rights reserved
2 / 19



nexperia TL431
Nexperia
TL431 family
Adjustable precision shunt regulators
3. Ordering information
Table 4. Ordering information
Type number
Package
Name
Description
TL431CDBZR
TO-236AB plastic surface-mounted package; 3 leads
TL431IDBZR
TL431QDBZR
TL431FDT
TL431MFDT
TL431ACDBZR
TL431AIDBZR
TL431AQDBZR
TL431AFDT
TL431AMFDT
TL431BCDBZR
TL431BIDBZR
TL431BQDBZR
TL431BFDT
TL431BMFDT
Version
SOT23
4. Marking
Table 5. Marking codes
Type number
Marking code [1]
TL431CDBZR
CA%
TL431IDBZR
CB%
TL431QDBZR
CC%
TL431FDT
AR%
TL431MFDT
AU%
TL431ACDBZR
CD%
TL431AIDBZR
CE%
TL431AQDBZR
CF%
[1] % = placeholder for manufacturing site code.
Type number
TL431AFDT
TL431AMFDT
TL431BCDBZR
TL431BIDBZR
TL431BQDBZR
TL431BFDT
TL431BMFDT
-
Marking code [1]
AS%
AV%
CG%
CH%
CJ%
AT%
AW%
-
TL431_FAM
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 6 — 9 January 2019
© Nexperia B.V. 2019. All rights reserved
3 / 19





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