Datasheet REF34-Q1 (Texas Instruments) - 6
| 制造商 | Texas Instruments |
| 描述 | Automotive, low-drift, low-power, small-footprint series voltage reference |
| 页数 / 页 | 39 / 6 — REF34-Q1. www.ti.com. PARAMETER. TEST CONDITION. MIN. TYP. MAX. UNIT. … |
| 文件格式/大小 | PDF / 4.5 Mb |
| 文件语言 | 英语 |
REF34-Q1. www.ti.com. PARAMETER. TEST CONDITION. MIN. TYP. MAX. UNIT. OUTPUT VOLTAGE. POWER SUPPLY
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REF34-Q1
SBAS901C – JULY 2018 – REVISED OCTOBER 2020
www.ti.com
At VIN = VOUT + VDO, COUT = 10 µF, CIN = 0.1 µF, IL = 0 mA, minimum and maximum specifications at TA = –40℃ to 125℃; Typical specifications at TA = 25℃ unless otherwise noted
PARAMETER TEST CONDITION MIN TYP MAX UNIT OUTPUT VOLTAGE
REF3425Q1 2.5 REF3430Q1 3.0 VOUT Output voltage REF3433Q1 3.3 V REF3440Q1 4.096 REF3450Q1 5.0
POWER SUPPLY
V V OUT + V IN Input voltage 12 V DO IL Output current capacity VIN = VOUT + VDO to 12 V –10 10 mA Active mode 72 95 IQ Quiescent current µA Shutdown mode (7) 2.5 3 IL = 0 mA 50 VDO Dropout voltage IL = 0 mA 100 mV IL = 10 mA 500 Voltage reference in active mode (EN = 1) 1.6 VEN ENABLE pin voltage (7) V Voltage reference in shutdown mode (EN = 0) 0.5 ENABLE pin leakage IEN current (7) VEN = VIN = 12V 1 2 µA ISC Short circuit current VOUT = 0 V at TA = 25°C 18 22 mA (1) Temperature drift is specified according to the box method. See Low Temperature Drift section for more details. (2) VDO for line regulation test is 50 mV. (3) VDO for load regulation test is 500 mV. (4) The peak-to-peak noise measurement is explained in more detail in section Noise Performance. (5) Long-term stability measurement procedure is explained in more detail in section Long–Term Stability. (6) Thermal hysteresis measurement procedure is explained in more detail in section Thermal Hysteresis. (7) Not applicable for REF34S device (DBV - 5 pin package) 6 Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated Product Folder Links: REF34-Q1 Document Outline 1 Features 2 Applications 3 Description Table of Contents 4 Revision History 5 Device Comparison Table 6 Pin Configuration and Functions 6.1 Pin 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 8 Typical Characteristics 9 Parameter Measurement Information 9.1 Solder Heat Shift 9.2 Long-Term Stability 9.3 Thermal Hysteresis 9.4 Power Dissipation 9.5 Noise Performance 10 Detailed Description 10.1 Overview 10.2 Functional Block Diagram 10.3 Feature Description 10.3.1 Supply Voltage 10.3.2 Low Temperature Drift 10.3.3 Load Current 10.4 Device Functional Modes 10.4.1 EN Pin 11 Application and Implementation 11.1 Application Information 11.2 Typical Applications 11.2.1 Basic Voltage Reference Connection 11.2.1.1 Design Requirements 11.2.1.2 Detailed Design Procedure 11.2.1.2.1 Input and Output Capacitors 11.2.1.2.2 4-Wire Kelvin Connections 11.2.1.2.3 VIN Slew Rate Considerations 11.2.1.2.4 Shutdown/Enable Feature 11.2.1.3 Application Curves 11.2.2 Advanced Driver Assistance Systems (ADAS) Microcontroller Connection 11.2.2.1 Basic Voltage Reference Connection 11.2.2.2 Design Requirements 11.2.2.3 Detailed Design Procedure 11.2.2.4 Enable Feature in ADAS 12 Power Supply Recommendations 13 Layout 13.1 Layout Guidelines 13.2 Layout Example 14 Device and Documentation Support 14.1 Documentation Support 14.1.1 Related Documentation 14.2 Receiving Notification of Documentation Updates 14.3 Support Resources 14.4 Trademarks 14.5 Electrostatic Discharge Caution 14.6 Glossary 15 Mechanical, Packaging, and Orderable Information
REF34-Q1
SBAS901C – JULY 2018 – REVISED OCTOBER 2020
www.ti.com
At VIN = VOUT + VDO, COUT = 10 µF, CIN = 0.1 µF, IL = 0 mA, minimum and maximum specifications at TA = –40℃ to 125℃; Typical specifications at TA = 25℃ unless otherwise noted
PARAMETER TEST CONDITION MIN TYP MAX UNIT OUTPUT VOLTAGE
REF3425Q1 2.5 REF3430Q1 3.0 VOUT Output voltage REF3433Q1 3.3 V REF3440Q1 4.096 REF3450Q1 5.0
POWER SUPPLY
V V OUT + V IN Input voltage 12 V DO IL Output current capacity VIN = VOUT + VDO to 12 V –10 10 mA Active mode 72 95 IQ Quiescent current µA Shutdown mode (7) 2.5 3 IL = 0 mA 50 VDO Dropout voltage IL = 0 mA 100 mV IL = 10 mA 500 Voltage reference in active mode (EN = 1) 1.6 VEN ENABLE pin voltage (7) V Voltage reference in shutdown mode (EN = 0) 0.5 ENABLE pin leakage IEN current (7) VEN = VIN = 12V 1 2 µA ISC Short circuit current VOUT = 0 V at TA = 25°C 18 22 mA (1) Temperature drift is specified according to the box method. See Low Temperature Drift section for more details. (2) VDO for line regulation test is 50 mV. (3) VDO for load regulation test is 500 mV. (4) The peak-to-peak noise measurement is explained in more detail in section Noise Performance. (5) Long-term stability measurement procedure is explained in more detail in section Long–Term Stability. (6) Thermal hysteresis measurement procedure is explained in more detail in section Thermal Hysteresis. (7) Not applicable for REF34S device (DBV - 5 pin package) 6 Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated Product Folder Links: REF34-Q1 Document Outline 1 Features 2 Applications 3 Description Table of Contents 4 Revision History 5 Device Comparison Table 6 Pin Configuration and Functions 6.1 Pin 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 8 Typical Characteristics 9 Parameter Measurement Information 9.1 Solder Heat Shift 9.2 Long-Term Stability 9.3 Thermal Hysteresis 9.4 Power Dissipation 9.5 Noise Performance 10 Detailed Description 10.1 Overview 10.2 Functional Block Diagram 10.3 Feature Description 10.3.1 Supply Voltage 10.3.2 Low Temperature Drift 10.3.3 Load Current 10.4 Device Functional Modes 10.4.1 EN Pin 11 Application and Implementation 11.1 Application Information 11.2 Typical Applications 11.2.1 Basic Voltage Reference Connection 11.2.1.1 Design Requirements 11.2.1.2 Detailed Design Procedure 11.2.1.2.1 Input and Output Capacitors 11.2.1.2.2 4-Wire Kelvin Connections 11.2.1.2.3 VIN Slew Rate Considerations 11.2.1.2.4 Shutdown/Enable Feature 11.2.1.3 Application Curves 11.2.2 Advanced Driver Assistance Systems (ADAS) Microcontroller Connection 11.2.2.1 Basic Voltage Reference Connection 11.2.2.2 Design Requirements 11.2.2.3 Detailed Design Procedure 11.2.2.4 Enable Feature in ADAS 12 Power Supply Recommendations 13 Layout 13.1 Layout Guidelines 13.2 Layout Example 14 Device and Documentation Support 14.1 Documentation Support 14.1.1 Related Documentation 14.2 Receiving Notification of Documentation Updates 14.3 Support Resources 14.4 Trademarks 14.5 Electrostatic Discharge Caution 14.6 Glossary 15 Mechanical, Packaging, and Orderable Information