Important notice
Dear Customer,
On 7 February 2017 the former NXP Standard Product business became a new company with the
tradename Nexperia. Nexperia is an industry leading supplier of Discrete, Logic and PowerMOS
semiconductors with its focus on the automotive, industrial, computing, consumer and wearable
application markets
In data sheets and application notes which still contain NXP or Philips Semiconductors references, use
the references to Nexperia, as shown below.
Instead of http://www.nxp.com, http://www.philips.com/ or http://www.semiconductors.philips.com/,
use http://www.nexperia.com
Instead of sales.addresses@www.nxp.com or sales.addresses@www.semiconductors.philips.com, use
salesaddresses@nexperia.com (email)
Replace the copyright notice at the bottom of each page or elsewhere in the document, depending on
the version, as shown below:
- © NXP N.V. (year). All rights reserved or © Koninklijke Philips Electronics N.V. (year). All rights
reserved
Should be replaced with:
- © Nexperia B.V. (year). All rights reserved.
If you have any questions related to the data sheet, please contact our nearest sales office via e-mail
or telephone (details via salesaddresses@nexperia.com). Thank you for your cooperation and
understanding,
Kind regards,
Team Nexperia
1. Product profile
1.1 General description
Three-terminal shunt regulator family with an output voltage range between V
ref
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, for example, for Switch Mode Power
Supply (SMPS) applications.
The TL431xSDT types are designed for standard requirements and linear
applications.
TL431 family
Adjustable precision shunt regulator
Rev. 5 — 01 September 2015 Product data sheet
SOT23
Table 1. Product overview
Reference
voltage
tolerance (V
ref
)
Temperature range (T
amb
) Pinning
configuration
(see Table 3
)
0C to 70 C 40 C to 85 C 40 C to 125 C
2 % TL431CDBZR TL431IDBZR TL431QDBZR normal pinning
TL431FDT normal pinning
TL431MFDT mirrored pinning
TL431SDT normal pinning
TL431MSDT mirrored pinning
1 % TL431ACDBZR TL431AIDBZR TL431AQDBZR normal pinning
TL431AFDT normal pinning
TL431AMFDT mirrored pinning
TL431ASDT normal pinning
TL431AMSDT mirrored pinning
0.5 % TL431BCDBZR TL431BIDBZR TL431BQDBZR normal pinning
TL431BFDT normal pinning
TL431BMFDT mirrored pinning
TL431BSDT normal pinning
TL431BMSDT mirrored pinning
TL431 family All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet Rev. 5 — 01 September 2015 2 of 27
NXP Semiconductors
TL431 family
Adjustable precision shunt regulator
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: 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)
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 Min Typ Max Unit
V
KA
cathode-anode voltage V
ref
-36V
I
K
cathode current 1 - 100 mA
V
ref
reference voltage V
KA
=V
ref
;
I
K
=10mA;
T
amb
=25C
Standard-Grade (2 %) 2440 2495 2550 mV
A-Grade (1 %) 2470 2495 2520 mV
B-Grade (0.5 %) 2483 2495 2507 mV

TL431BIDBZR,215

Mfr. #:
Manufacturer:
Nexperia
Description:
Voltage References SHUNT REGULATOR 31SDT/SOT23/
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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