TL431AQPK - TI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

TL431AQPK
Manufacturer

TI
ChipWorker Part#

CW4872755
Category

Voltage Reference
Package

SOT-89-3
Description

Shunt Voltage Reference Adjustable Precision Shunt Regulator V-Ref Adjustable 2.495V to 36V 100mA 4Pin(3+Tab) SOT-89 T/R
Documentation

Datasheet

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TL431AQPK Specifications

Attribute	Attribute Value

Part Number	TL431AQPK
Manufacturer	TI
ChipWorker Part#	CW4872755
Category	Voltage Reference
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	3 Pin
Case/Package	SOT-89-3
Capacitance Tolerance	±1 %
Input Voltage (DC)	2.50V ~ 36.0V
Output Voltage	2.495V ~ 36V
Output Current	100 mA
Number of Channels	1 Channel
Number of Positions	3 Position
Input Voltage (Max)	37 V
Input Voltage (Min)	2.495 V
Output Voltage (Max)	36 V
Output Voltage (Min)	2.495 V
Output Current (Max)	100 mA
Operating Temperature (Max)	125 ℃
Operating Temperature (Min)	-40 ℃
Accuracy	±1 %
Input Voltage	37 V
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Size-Width	2.5 mm
Operating Temperature	-40℃ ~ 125℃ (TA)
Temperature Coefficient	±34 ppm/℃
Product Lifecycle Status	Active
Packaging	Tape & Reel (TR)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
REACH SVHC Compliance Edition	2015/06/15

Product Description

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 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.
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 (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
Applications
• Adjustable Voltage and Current Referencing
• Secondary Side Regulation in Flyback SMPSs
• Zener Replacement
• Voltage Monitoring
• Comparator with Integrated Reference

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