Datasheet REF3425, REF3430, REF3433, REF3440, REF3450 (Texas Instruments) - 2
| Hersteller | Texas Instruments |
| Beschreibung | Low-Drift, Low-Power, Small-Footprint Series Voltage Reference |
| Seiten / Seite | 31 / 2 — REF3425. , REF3430, REF3433, REF3440, REF3450. www.ti.com. Table of … |
| Dateiformat / Größe | PDF / 2.5 Mb |
| Dokumentensprache | Englisch |
REF3425. , REF3430, REF3433, REF3440, REF3450. www.ti.com. Table of Contents. 1 Features. 2 Applications. 3 Description
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REF3425 , REF3430, REF3433, REF3440, REF3450
SBAS804F – SEPTEMBER 2017 – REVISED JUNE 2021
www.ti.com Table of Contents 1 Features
..1 9.2 Functional Block Diagram... 17
2 Applications
... 1 9.3 Feature Description...17
3 Description
...1 9.4 Device Functional Modes..18
4 Revision History
.. 2
10 Application and Implementation
.. 19
5 Device Comparison Table
...4 10.1 Application Information... 19
6 Pin Configuration and Functions
...5 10.2 Typical Application: Basic Voltage Reference
7 Specifications
.. 6 Connection.. 19 7.1 Absolute Maximum Ratings ... 6
11 Power Supply Recommendations
..22 7.2 ESD Ratings .. 6
12 Layout
...22 7.3 Recommended Operating Conditions ..6 12.1 Layout Guidelines... 22 7.4 Thermal Information ...6 12.2 Layout Example.. 22 7.5 Electrical Characteristics ..7
13 Device and Documentation Support
..23 7.6 Typical Characteristics.. 9 13.1 Documentation Support.. 23
8 Parameter Measurement Information
.. 13 13.2 Receiving Notification of Documentation Updates..23 8.1 Solder Heat Shift...13 13.3 Support Resources... 23 8.2 Long-Term Stability... 14 13.4 Trademarks...23 8.3 Thermal Hysteresis... 14 13.5 Electrostatic Discharge Caution..23 8.4 Power Dissipation... 15 13.6 Glossary..23 8.5 Noise Performance... 16
14 Mechanical, Packaging, and Orderable 9 Detailed Description
..17
Information
.. 23 9.1 Overview... 17
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision E (April 2021) to Revision F (June 2021) Page
• Added low dropout line item to Features section..1 • Consolidated part numbers in Device Information table... 1 • Changed Thermal Information parameters to correctly reflect DBV package.. 6 • Added second cycle thermal hysteresis plot...14 • Linked product numbers in table to datasheets.. 19
Changes from Revision D (February 2021) to Revision E (April 2021) Page
• Removed the "Product Preview" note for the REF34xxT package options.. 4
Changes from Revision C (January 2021) to Revision D (February 2021) Page
• Updated description and figures... 1 • Changed ENABLE TO EN.. 1 • Updated values...13
Changes from Revision B (March 2018) to Revision C (February 2021) Page
• Added "Device Information" to include REF34xxT... 1 • Added hyperlinks to "Applications"... 1 • Changed "VREF" to "VOUT" throughout document... 1 • Updated the numbering format for tables, figures, and cross-references throughout the document..1 • Added REF34xxT to "Device Comparison Table"...4 • Added REF34xxT to "Pin Configuration and Functions"...5 • Fixed pinout numbering.. 5 2 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: REF3425 REF3430 REF3433 REF3440 REF3450 Document Outline 1 Features 2 Applications 3 Description Table of Contents 4 Revision History 5 Device Comparison Table 6 Pin Configuration and Functions 7 Specifications 7.1 Absolute Maximum Ratings 7.2 ESD Ratings 7.3 Recommended Operating Conditions 7.4 Thermal Information 7.5 Electrical Characteristics 7.6 Typical Characteristics 8 Parameter Measurement Information 8.1 Solder Heat Shift 8.2 Long-Term Stability 8.3 Thermal Hysteresis 8.4 Power Dissipation 8.5 Noise Performance 9 Detailed Description 9.1 Overview 9.2 Functional Block Diagram 9.3 Feature Description 9.3.1 Supply Voltage 9.3.2 Low Temperature Drift 9.3.3 Load Current 9.4 Device Functional Modes 9.4.1 EN Pin 9.4.2 Negative Reference Voltage 10 Application and Implementation 10.1 Application Information 10.2 Typical Application: Basic Voltage Reference Connection 10.2.1 Design Requirements 10.2.2 Detailed Design Procedure 10.2.2.1 Input and Output Capacitors 10.2.2.2 4-Wire Kelvin Connections 10.2.2.3 VIN Slew Rate Considerations 10.2.2.4 Shutdown/Enable Feature 10.2.3 Application Curves 11 Power Supply Recommendations 12 Layout 12.1 Layout Guidelines 12.2 Layout Example 13 Device and Documentation Support 13.1 Documentation Support 13.1.1 Related Documentation 13.2 Receiving Notification of Documentation Updates 13.3 Support Resources 13.4 Trademarks 13.5 Electrostatic Discharge Caution 13.6 Glossary 14 Mechanical, Packaging, and Orderable Information
REF3425 , REF3430, REF3433, REF3440, REF3450
SBAS804F – SEPTEMBER 2017 – REVISED JUNE 2021
www.ti.com Table of Contents 1 Features
..1 9.2 Functional Block Diagram... 17
2 Applications
... 1 9.3 Feature Description...17
3 Description
...1 9.4 Device Functional Modes..18
4 Revision History
.. 2
10 Application and Implementation
.. 19
5 Device Comparison Table
...4 10.1 Application Information... 19
6 Pin Configuration and Functions
...5 10.2 Typical Application: Basic Voltage Reference
7 Specifications
.. 6 Connection.. 19 7.1 Absolute Maximum Ratings ... 6
11 Power Supply Recommendations
..22 7.2 ESD Ratings .. 6
12 Layout
...22 7.3 Recommended Operating Conditions ..6 12.1 Layout Guidelines... 22 7.4 Thermal Information ...6 12.2 Layout Example.. 22 7.5 Electrical Characteristics ..7
13 Device and Documentation Support
..23 7.6 Typical Characteristics.. 9 13.1 Documentation Support.. 23
8 Parameter Measurement Information
.. 13 13.2 Receiving Notification of Documentation Updates..23 8.1 Solder Heat Shift...13 13.3 Support Resources... 23 8.2 Long-Term Stability... 14 13.4 Trademarks...23 8.3 Thermal Hysteresis... 14 13.5 Electrostatic Discharge Caution..23 8.4 Power Dissipation... 15 13.6 Glossary..23 8.5 Noise Performance... 16
14 Mechanical, Packaging, and Orderable 9 Detailed Description
..17
Information
.. 23 9.1 Overview... 17
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision E (April 2021) to Revision F (June 2021) Page
• Added low dropout line item to Features section..1 • Consolidated part numbers in Device Information table... 1 • Changed Thermal Information parameters to correctly reflect DBV package.. 6 • Added second cycle thermal hysteresis plot...14 • Linked product numbers in table to datasheets.. 19
Changes from Revision D (February 2021) to Revision E (April 2021) Page
• Removed the "Product Preview" note for the REF34xxT package options.. 4
Changes from Revision C (January 2021) to Revision D (February 2021) Page
• Updated description and figures... 1 • Changed ENABLE TO EN.. 1 • Updated values...13
Changes from Revision B (March 2018) to Revision C (February 2021) Page
• Added "Device Information" to include REF34xxT... 1 • Added hyperlinks to "Applications"... 1 • Changed "VREF" to "VOUT" throughout document... 1 • Updated the numbering format for tables, figures, and cross-references throughout the document..1 • Added REF34xxT to "Device Comparison Table"...4 • Added REF34xxT to "Pin Configuration and Functions"...5 • Fixed pinout numbering.. 5 2 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: REF3425 REF3430 REF3433 REF3440 REF3450 Document Outline 1 Features 2 Applications 3 Description Table of Contents 4 Revision History 5 Device Comparison Table 6 Pin Configuration and Functions 7 Specifications 7.1 Absolute Maximum Ratings 7.2 ESD Ratings 7.3 Recommended Operating Conditions 7.4 Thermal Information 7.5 Electrical Characteristics 7.6 Typical Characteristics 8 Parameter Measurement Information 8.1 Solder Heat Shift 8.2 Long-Term Stability 8.3 Thermal Hysteresis 8.4 Power Dissipation 8.5 Noise Performance 9 Detailed Description 9.1 Overview 9.2 Functional Block Diagram 9.3 Feature Description 9.3.1 Supply Voltage 9.3.2 Low Temperature Drift 9.3.3 Load Current 9.4 Device Functional Modes 9.4.1 EN Pin 9.4.2 Negative Reference Voltage 10 Application and Implementation 10.1 Application Information 10.2 Typical Application: Basic Voltage Reference Connection 10.2.1 Design Requirements 10.2.2 Detailed Design Procedure 10.2.2.1 Input and Output Capacitors 10.2.2.2 4-Wire Kelvin Connections 10.2.2.3 VIN Slew Rate Considerations 10.2.2.4 Shutdown/Enable Feature 10.2.3 Application Curves 11 Power Supply Recommendations 12 Layout 12.1 Layout Guidelines 12.2 Layout Example 13 Device and Documentation Support 13.1 Documentation Support 13.1.1 Related Documentation 13.2 Receiving Notification of Documentation Updates 13.3 Support Resources 13.4 Trademarks 13.5 Electrostatic Discharge Caution 13.6 Glossary 14 Mechanical, Packaging, and Orderable Information