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TL431IPKR

Description
Two Terminal Voltage Reference, 1 Output, 2.495V, Trim/Adjustable, BIPolar, PSSO3, GREEN, PLASTIC, SOT-89, 3 PIN
CategoryPower/power management    The power supply circuit   
File Size2MB,75 Pages
ManufacturerRochester Electronics
Websitehttps://www.rocelec.com/
Download Datasheet Parametric View All

TL431IPKR Overview

Two Terminal Voltage Reference, 1 Output, 2.495V, Trim/Adjustable, BIPolar, PSSO3, GREEN, PLASTIC, SOT-89, 3 PIN

TL431IPKR Parametric

Parameter NameAttribute value
package instruction,
Reach Compliance Codeunknown
ECCN codeEAR99
Other featuresOUTPUT VOLTAGE ADJUSTABLE FROM 2.495V TO 36V
Analog Integrated Circuits - Other TypesTWO TERMINAL VOLTAGE REFERENCE
JESD-30 codeR-PSSO-F3
length4.5 mm
Number of functions1
Output times1
Number of terminals3
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Maximum output voltage2.55 V
Minimum output voltage2.44 V
Nominal output voltage2.495 V
Package body materialPLASTIC/EPOXY
Package shapeRECTANGULAR
Package formSMALL OUTLINE, HEAT SINK/SLUG
Maximum seat height1.6 mm
Maximum supply voltage (Vsup)36 V
Minimum supply voltage (Vsup)2.495 V
surface mountYES
technologyBIPOLAR
Maximum voltage temperature coefficient109.018 ppm/°C
Temperature levelINDUSTRIAL
Terminal formFLAT
Terminal pitch1.5 mm
Terminal locationSINGLE
Fine-tuning/adjustable outputYES
width2.5 mm
Base Number Matches1
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TL431, TL431A, TL431B
TL432, TL432A, TL432B
SLVS543O – AUGUST 2004 – REVISED JANUARY 2015
TL43xx Precision Programmable Reference
1 Features
1
3 Description
The TL431 and TL432 devices are three-terminal
adjustable shunt regulators, with specified thermal
stability over applicable automotive, commercial, and
military temperature ranges. The output voltage can
be set to any value between V
ref
(approximately
2.5 V) and 36 V, with two external resistors. These
devices have a typical output impedance of 0.2
Ω.
Active output circuitry provides a very sharp turn-on
characteristic, making these devices excellent
replacements for Zener diodes in many applications,
such as onboard regulation, adjustable power
supplies, and switching power supplies. The TL432
device has exactly the same functionality and
electrical specifications as the TL431 device, but has
different pinouts for the DBV, DBZ, and PK packages.
Both the TL431 and TL432 devices are offered in
three grades, with initial tolerances (at 25°C) of 0.5%,
1%, and 2%, for the B, A, and standard grade,
respectively. In addition, low output drift versus
temperature ensures good stability over the entire
temperature range.
The TL43xxC devices are characterized for operation
from 0°C to 70°C, the TL43xxI devices are
characterized for operation from –40°C to 85°C, and
the TL43xxQ devices are characterized for operation
from –40°C to 125°C.
Device Information
(1)
PART NUMBER
PACKAGE (PIN)
SOT-23-3 (3)
SOT-23-5 (5)
TL43xx
SOIC (8)
PDIP (8)
SOP (8)
BODY SIZE (NOM)
2.90 mm x 1.30 mm
2.90 mm x 1.60 mm
4.90 mm x 3.90 mm
9.50 mm x 6.35 mm
6.20 mm x 5.30 mm
Reference Voltage Tolerance at 25°C
– 0.5% (B Grade)
– 1% (A Grade)
– 2% (Standard Grade)
Adjustable Output Voltage: V
ref
to 36 V
Operation From
−40°C
to 125°C
Typical Temperature Drift (TL431B)
– 6 mV (C Temp)
– 14 mV (I Temp, Q Temp)
Low Output Noise
0.2-Ω Typical Output Impedance
Sink-Current Capability: 1 mA to 100 mA
2 Applications
Adjustable Voltage and Current Referencing
Secondary Side Regulation in Flyback SMPSs
Zener Replacement
Voltage Monitoring
Comparator with Integrated Reference
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
4 Simplified Schematic
Input
I
KA
V
KA
V
ref
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
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