SLVSFF4 December   2019 TLVH431B-EP

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Simplified Schematic
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
    4. 8.4 Device Functional Modes
      1. 8.4.1 Open Loop (Comparator)
      2. 8.4.2 Closed Loop
  9. 9 Applications and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 Comparator With Integrated Reference (Open Loop)
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1 Basic Operation
          2. 9.2.1.2.2 Overdrive
          3. 9.2.1.2.3 Output Voltage and Logic Input Level
            1. 9.2.1.2.3.1 Input Resistance
        3. 9.2.1.3 Application Curves
      2. 9.2.2 Shunt Regulator/Reference
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
          1. 9.2.2.2.1 Programming Output/Cathode Voltage
          2. 9.2.2.2.2 Total Accuracy
          3. 9.2.2.2.3 Stability
        3. 9.2.2.3 Application Curve
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Support Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

6.6 Typical Characteristics

Operation of the device at these or any other conditions beyond those indicated in the Recommended Operating Conditions table are not implied.
TLVH431B-EP D001_reference-voltage-vs-temperature-SLVSFF4.gifFigure 1. Reference Voltage
vs Junction Temperature
TLVH431B-EP pmif6_lvs555.gif
VKA = VREF TA = 25°C
Figure 3. Cathode Current
vs Cathode Voltage
TLVH431B-EP D003_minimum-cathode-current-vs-temperature-SLVSFF4.gifFigure 5. Minimum Cathode Current
vs Junction Temperature
TLVH431B-EP D005_ratio-delta-reference-to-delta-cathode-vs-temperature-SLVSFF4.gif
Figure 7. Ratio of Delta Reference Voltage to Delta Cathode
Voltage vs Junction Temperature
TLVH431B-EP D002_reference-current-vs-temperature-SLVSFF4.gifFigure 2. Reference Input Current
vs Junction Temperature
TLVH431B-EP cathode-current-vs-cathode-voltage-slvsff4.gif
VKA = VREF TA = 25°C
Figure 4. Cathode Current
vs Cathode Voltage
TLVH431B-EP D004_off-state-cathode-current-vs-temperature-SLVSFF4.gifFigure 6. Off-State Cathode Current
vs Junction Temperature
TLVH431B-EP pmif10_lvs555.gif
(1) Extrapolated from life-test data taken at 125°C; the activation energy assumed is 0.7 eV.
IK = 1 mA
Figure 8. Percentage Change in VREF
vs Operating Life at 55°C
TLVH431B-EP pmif11_lvs555.gif
VKA = VREF IK = 1 mA TA = 25°C
Figure 9. Equivalent Input Noise Voltage
vs Frequency
TLVH431B-EP pmif12_lvs555.gif
f = 0.1 Hz to 10 Hz IK = 1 mA TA = 25°C
Figure 11. Equivalent Input Noise Voltage
Over a 10-s Period
TLVH431B-EP pmif13_lvs555.gif
IK = 1 mA TA = 25°C
Figure 13. Voltage Gain and Phase Margin
vs Frequency
TLVH431B-EP pulse-response-1-slvsff4.gif
R = 18 kΩ TA = 25°C
Figure 15. Pulse Response 1
TLVH431B-EP pulse-response-2-slvsff4.gif
R = 1.8 kΩ TA = 25°C
Figure 17. Pulse Response 2
TLVH431B-EP phase_margin_test_cx_new_lvs555.gif
Figure 19. Phase Margin Test Circuit
TLVH431B-EP g_phase_capload_vk2p5_new_lvs555.gif
VKA = 2.5 V TA = 25°C
Figure 21. Phase Margin vs Capacitive Load
TLVH431B-EP test-circuit-for-equivalent-input-noise-voltage-slvsff4.gif
Figure 10. Test Circuit for Equivalent Noise Voltage
TLVH431B-EP test-circuit-for-eqivalent-noise-voltage-slvsff4.gif
Figure 12. Test Circuit for 0.1-Hz to 10-Hz
Equivalent Noise Voltage
TLVH431B-EP test-circuit-for-voltage-gain-and-phase-margin-slvsff4.gif
Figure 14. Test Circuit for Voltage Gain and Phase Margin
TLVH431B-EP test-circuit-for-pulse-response-1-slvsff4.gif
Figure 16. Test Circuit for Pulse Response 1
TLVH431B-EP test-circuit-for-pulse-response-2-slvsff4.gif
Figure 18. Test Circuit for Pulse Response 2
TLVH431B-EP g_phase_capload_vk1p25_new_lvs555.gif
VKA = VREF (1.25 V) TA = 25°C
Figure 20. Phase Margin vs Capacitive Load
TLVH431B-EP g_phase_capload_vk5_new_lvs555.gif
1.
VKA = 5 V TA = 25°C
Figure 22. Phase Margin vs Capacitive Load