Datasheet TLA432 (Texas Instruments) - 6

TLA431, TLA432
SNVSCR4A – JULY 2024 – REVISED OCTOBER 2024
www.ti.com 6.6 Typical Characteristics
Data at high and low temperatures are applicable only within the recommended operating free-air temperature ranges of the various devices. 2.504 150 VKA = Vref 2.502 V 125 KA = Vref TA = 25°C IKA = 10 mA 100 2.5 mA 75 2.498 − 50 2.496 25 2.494 0 Cathode Current 2.492 − −25 eference Voltage - V I KA - R 2.49 −50 V ref −75 2.488 −100 2.486 −2 −1 0 1 2 3 VKA − Cathode Voltage − V 2.484
Figure 6-2. Cathode Current vs Cathode Voltage
-50 -25 0 25 50 75 100 125 150 TA - Free-Air Temperature - °C
Figure 6-1. Reference Voltage vs Free-Air Temperature
400 − 0.85 V VKA = 3 V to 36 V 350 KA = Vref − 0.95 300 −1.05 mV/V 250 − KA urrent - A V −1.15 200 ∆ / refV 150 −1.25 ∆ athode C 100 −1.35 - C A 16 I K 50 −1.45 −75 −50 −25 0 25 50 75 100 125 0 TA − Free-Air Temperature − °C -50
Figure 6-4. Ratio of Delta Reference Voltage to
0 0.5 1 1.5 2 2.5
Delta Cathode Voltage vs Free-Air Temperature
VKA - Cathode Voltage - V
Figure 6-3. Cathode Current vs Cathode Voltage
6 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated Product Folder Links: TLA431 TLA432 Document Outline 1 Features 2 Applications 3 Description Table of Contents 4 Device Comparison Table 5 Pin Configuration and Functions 6 Specifications 6.1 Absolute Maximum Ratings 6.2 ESD Ratings 6.3 Recommended Operating Conditions 6.4 Thermal Information 6.5 Electrical Characteristics 6.6 Typical Characteristics 7 Parameter Measurement Information 7.1 Temperature Coefficient 7.2 Dynamic Impedance 8 Detailed Description 8.1 Overview 8.2 Functional Block Diagram 8.3 Feature Description 8.4 Device Functional Modes 8.4.1 Closed Loop 8.4.1.1 Stability (Closed Loop) 8.4.2 Open Loop (Comparator) 9 Applications and Implementation 9.1 Application Information 9.2 Typical Applications 9.2.1 Shunt Regulator/Reference 9.2.1.1 Design Requirements 9.2.1.2 Detailed Design Procedure 9.2.1.2.1 Programming Output/Cathode Voltage 9.2.1.2.2 Total Accuracy 9.2.1.2.3 Start-Up Time 9.2.1.3 Application Curve 9.2.2 Comparator With Integrated Reference 9.2.2.1 Design Requirements 9.2.2.2 Detailed Design Procedure 9.2.2.2.1 Basic Operation 9.2.2.2.1.1 Overdrive 9.2.2.2.2 Output Voltage and Logic Input Level 9.2.2.2.2.1 Input Resistance 9.2.2.3 Application Curve 9.3 System Examples 9.4 Power Supply Recommendations 9.5 Layout 9.5.1 Layout Guidelines 9.5.2 Layout Example 10 Device and Documentation Support 10.1 Device Nomenclature 10.2 Related Links 10.3 Receiving Notification of Documentation Updates 10.4 Support Resources 10.5 Trademarks 10.6 Electrostatic Discharge Caution 10.7 Glossary 11 Revision History 12 Mechanical, Packaging, and Orderable Information