TL431 Series Assignment 3-Lead Plastic SOT-23 Package Code: Refer
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TL431 Series
TL431 Series Assignment
3-Lead Plastic SOT-23 Package Code: Reference Cathode Anode
TL431 Series
Adjustable Precision Shunt Regulator
Description
TL431 series three-terminal adjustable regulators with guaranteed thermal stability over applicable temperature ranges. output voltage value between VREF (approximately volts) volts with external resistors. These devices have typical dynamic output impedance Active output circuitry provides very sharp turn-on characteristic, making these devices excellent replacement zener diodes many applications.
3-Lead Plastic TO-92 Package Code: Reference Anode Cathode
Features
Programmable Precise Output Voltage from 2.5V High Stability under Capacitive Load Temperature Deviation: 4.5mV Typical Dynamic Output Resistance: Typical Sink Current Capacity from Output Noise Wide Operating Range Equivalent Full-range Temperature Coefficient with 20PPM/ Typical
Absolute Maximum Ratings
(Operating temperature range applies unless otherwise specified) Characteristics Cathode Voltage Cathode Current Range (Continuous) Reference Input Current Range Symbol IREF TO-92 -Operating Temperature Range (Max.) Storage Temperature Range Topr Tstg -40~+125 -65~+150 Value -100~+150 0.05~+10 SOT-23 Power Dissipation
Unit
Operating Conditions
Characteristics Cathode Voltage Cathode Current Range (Continuous) Operating Ambient Temperature Range Symbol Min. VREF Max. Unit
CTC-IC-0002-VER2.0
TL431
Functional Block Diagram Symbol
Functional Block Diagram Symbol
TL431 Series
Cathode
Reference
Anode
Test Circuits
VK=VREF IREF VREF VREF VK>VREF Off-State Current
IREF IOFF
Note: VK=VREF (1+R1/R2)+IREFxR1
Electrical Characteristics (TA=25oC unless otherwise specified)
Characteristics Reference Input Voltage (Fig1) 0.4% 0.8% Symbol VREF VREF(dev) Test Conditions VK=VREF, IK=10mA VK=VREF, IK=10mA Tmin Tmax (-40~+125 2.49 2.48
2.50 2.50 0.05 0.15
2.51 2.52
Unit mV/V mV/V
Deviation Reference Input Voltage Over-Temperature (Fig1) Ratio Change Reference Input Voltage Change Cathode Voltage (Fig2)
VREF
Reference Input Current (Fig2) Deviation Reference Input Current Over Full Temperature Range (Fig2) Minimum Cathode Current Regulation (Fig1) Off-State Cathode Current (Fig3) Dynamic Output Impedance (Fig1)
IREF IREF(dev) IK(min) IK(off)
IK=10mA, VK=10V VREF IK=10mA, VK=36V IK=10mA, R1=10k IK=10mA, R1=10k Ta=-40~+125 VK=VREF VK=36V, VREF=0 VK=VREF, 1kHz IK=1 100mA
CTC-IC-0002-VER2.0
TL431
Typical Performance Characteristics
TL431 Series
CTC-IC-0002-VER2.0
TL431
Typical Performance Characteristics (Continued)
TL431 Series
CTC-IC-0002-VER2.0
TL431
Typical Performance Characteristics (Continued)
TL431 Series
CTC-IC-0002-VER2.0
TL431
Compact Technology CO.,LTD.
SOT-23 Dimension
Marking:
TL431 Series
Free Mark
Pb-Free: (Note) Normal: None
Note: Pb-free product distinguish green label extra description right side label. Style: 1.Reference 2.Cathode 3.Anode Material: Lead solder plating: Sn60/Pb40 (Normal), Sn/3.0Ag/0.5Cu Pure-Tin (Pb-free) Mold Compound: Epoxy resin family, flammability solid burning class: UL94V-0
Min. 2.80 1.20 0.89 0.30 1.70 0.013 0.085 0.32 0.85 2.10 0.25
Max. 3.04 1.60 1.30 0.50 2.30 0.10 0.177 0.67 1.15 2.75 0.65
Typical, Unit:
3-Lead SOT-23 Plastic Surface Mounted Package Package Code:
style: 1.Reference 2.Cathode 3.Anode
TO-92 Dimension
Style :1.Reference 2.Anode 3.Cathode Material: Lead solder plating: Sn60/Pb40 Normal Sn/3.0 Ag/0.5 Pure-Tin free) Mold compound: Epoxy resin family. Flammability solid buening calss 94V-0
Typical, Unit:
3-Lead TO-92 Plastic Package Package Code:
Ordering Information
Package SOT-23 TO-92 VREF: 0.8% TL431BN TL431BA VREF: 0.4% TL431CN TL431CA
CTC-IC-0002-VER2.0
TL431
Soldering Methods Products
Storage environment: Temperature=10oC~35oC Humidity=65%±15% Reflow soldering surface-mount devices Figure Temperature profile
Ramp-up Tsmax Temperature
TL431 Series
Critical Zone
Tsmin Preheat
Ramp-down
25oC Peak Time
Profile Feature Average ramp-up rate Preheat Temperature (Tsmin) Temperature (Tsmax) Time (min max) (ts) Tsmax Ramp-up Rate Time maintained above: Temperature (TL) Time (tL) Peak Temperature (TP) Time within actual Peak Temperature (tP) Ramp-down Rate Time 25oC Peak Temperature Flow (wave) soldering (solder dipping) Products devices. Pb-Free devices.
Sn-Pb Eutectic Assembly C/sec 100oC 150oC 60~120 <3oC/sec 183oC 60~150 +0/-5 10~30 <6oC/sec minutes
Pb-Free Assembly <3oC/sec 150oC 200oC 60~180 <3oC/sec 217oC 60~150 260oC +0/-5oC 20~40 <6oC/sec minutes
Peak temperature +0/-5
Dipping time 5sec 1sec 5sec 1sec
CTC-IC-0002-VER2.0
TL431
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