TL431BILPE3 datasheet(1/83 Pages) TI

部件名	TL431BILPE3

功能描述	TL431, TL432 Precision Programmable Reference

PDF	83 Pages

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制造商	TI [Texas Instruments]

网页	http://www.ti.com

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TL431, TL432 Precision Programmable Reference

1 Features

• Reference voltage tolerance at 25°C

– 0.5% (B grade)

– 1% (A grade)

– 2% (Standard grade)

• Adjustable output voltage: Vref to 36 V

• Operation from −40°C to 125°C

• Typical temperature drift (TL43xB)

– 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

Vref

Input

VKA

IKA

Simplified Schematic

3 Description

The TL431LI / TL432LI are pin-to-pin alternatives

to TL431 / TL432. TL43xLI offers better stability,

lower

temperature

drift

(VI(dev)), and lower

reference current (Iref) for improved system

accuracy.

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 Vref (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

PART NUMBER (1)

PACKAGE (PIN)

BODY SIZE (NOM)

TL43x

SOT-23-3 (3)

2.90 mm × 1.30 mm

SOT-23-5 (5)

2.90 mm × 1.60 mm

SOIC (8)

4.90 mm × 3.90 mm

PDIP (8)

9.50 mm × 6.35 mm

SOP (8)

6.20 mm × 5.30 mm

(1)

For all available packages, see the orderable addendum at

the end of the data sheet.

TL431, TL432

SLVS543Q – AUGUST 2004 – REVISED JULY 2022

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.

类似零件编号 - TL431BILPE3

制造商	部件名	数据表	功能描述
Texas Instruments	TL431BILPE3	1Mb / 61P	ADJUSTABLE PRECISION SHUNT REGULATORS
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	TL431BILPE3	1Mb / 75P	PRECISION PROGRAMMABLE REFERENCE
	TL431BILPE3	1Mb / 76P	PRECISION PROGRAMMABLE REFERENCE

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