Datasheet TLV431, TLV431A, TLV431B (Texas Instruments) - 8

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TLV431 , TLV431A, TLV431B
SLVS139W – JULY 1996 – REVISED MARCH 2018
www.ti.com 6.8 Typical Characteristics
Operation of the device at these or any other conditions beyond those indicated in the Recommended Operating Conditions table are not implied.
1.254 250 IK = 10 mA IK = 10 mA 1.252 R1 = 10 k
Ω
A R2 = Open n V − − 1.250 t 200 n e g rre lta 1.248 u o C t e V u c p n 1.246 In 150 re e c fe e n R 1.244 re − fe e R ref 1.242 100 − V I ref 1.240 1.238 50 − 50 − 25 0 25 50 75 100 125 150 − 50 − 25 0 25 50 75 100 125 150 T TJ − Junction Temperature −
°
C J − Junction Temperature −
°
C Figure 1. Reference Voltage vs Figure 2. Reference Input Current vs Junction Temperature Junction Temperature (for TLV431 and TLV431A) 250 15 VKA = VREF 230 IK = 10 mA TA = 25
°
C R1 = 10 k
Ω
A 10 n 210 R2 = Open − t A n 190 m 5 rre − u t C 170 n t u rre p u 150 0 In e e C c d n 130 o re th − 5 fe a e 110 C R − − I K 90 − 10 I ref 70 50 − 15 −50 −25 0 25 50 75 100 125 150 − 1 −0.5 0 0.5 1 1.5 V T KA − Cathode Voltage − V J − Junction Temperature −
°
C Figure 4. Cathode Current vs Figure 3. Reference Input Current vs Cathode Voltage Junction Temperature (for TLV431B)
120
250 VKA = VREF
115
200 TA = 25
°
C
110
150
105
A
µ 100
− 100 t
95
n 50 rre
90
u e C 0
Ik(min) 85
d o
80
th − 50 a
75
C − − 100
70
I K − 150
65 60
− 200
55
− 250
-40 -20 0 20 40 60 80 100 120 140
− 1 − 0.5 0 0.5 1 1.5
Temperature (qC)
VKA − Cathode Voltage − V Figure 5. Minimum Cathode Current vs Temperature Figure 6. Cathode Current vs Cathode Voltage
8 Submit Documentation Feedback Copyright © 1996–2018, Texas Instruments Incorporated Product Folder Links: TLV431 TLV431A TLV431B Document Outline 1 Features 2 Applications 3 Description Table of Contents 4 Revision History 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 for TLV431 6.6 Electrical Characteristics for TLV431A 6.7 Electrical Characteristics for TLV431B 6.8 Typical Characteristics 7 Parameter Measurement Information 8 Detailed Description 8.1 Overview 8.2 Functional Block Diagram 8.3 Feature Description 8.4 Device Functional Modes 8.4.1 Open Loop (Comparator) 8.4.2 Closed Loop 9 Applications and Implementation 9.1 Application Information 9.2 Typical Applications 9.2.1 Comparator With Integrated Reference (Open Loop) 9.2.1.1 Design Requirements 9.2.1.2 Detailed Design Procedure 9.2.1.3 Application Curves 9.2.2 Shunt Regulator/Reference 9.2.2.1 Design Requirements 9.2.2.2 Detailed Design Procedure 9.2.2.3 Application Curve 10 Power Supply Recommendations 11 Layout 11.1 Layout Guidelines 11.2 Layout Example 12 Device and Documentation Support 12.1 Documentation Support 12.1.1 Related Documentation 12.2 Related Links 12.3 Receiving Notification of Documentation Updates 12.4 Community Resources 12.5 Trademarks 12.6 Electrostatic Discharge Caution 12.7 Glossary 13 Mechanical, Packaging, and Orderable Information