Datasheet REF34-Q1 (Texas Instruments) - 5

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REF34-Q1 www.ti.com
SBAS901C – JULY 2018 – REVISED OCTOBER 2020
7.5 Electrical Characteristics
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 ACCURACY AND DRIFT
Output voltage accuracy TA = 25℃ –0.05 0.05 % Output voltage temperature coefficient 2.5 6 ppm/℃ (1)
LINE & LOAD REGULATION
VIN = VOUT + VDO (2) to 12 V 2 ΔVO/ΔVIN Line Regulation ppm/V VIN = VOUT + VDO (2) to 12 V 15 I Sourcing 20 L = 0 mA to 10mA, VIN = V (3) OUT+ VDO Sourcing 30 Sinking, REF3425-Q1 40 Sinking, REF3430-Q1 43 Sinking, REF3433-Q1 48 Sinking, REF3440-Q1 60 ΔVO/ΔIL Load Regulation ppm/mA I Sinking, REF3450-Q1 70 L = 0 mA to –10mA, VIN = V (3) OUT+ VDO Sinking, REF3425-Q1 70 Sinking, REF3430-Q1 75 Sinking, REF3433-Q1 84 Sinking, REF3440-Q1 98 Sinking, REF3450-Q1 140
NOISE
0.1Hz ≤ f ≤ 10Hz 5 enp-p Low frequency noise (4) µV p–p/V 0.1Hz ≤ f ≤ 10Hz (REF3440–Q1 and REF3450– 3.8 Q1) Integrated wide band en 10Hz ≤ f ≤ 10kHz 24 µVrms noise Output voltage noise f = 1kHz 0.25 ppm/√Hz en density f = 1kHz (REF3440–Q1 and REF3450–Q1) 0.2
LONG TERM STABILITY AND HYSTERESIS
0 to 1000h at 35℃ 25 Long-term stability (5) DBV Package 1000h to 2000h at 35℃ 10 ppm Long-term stability (5) DGK Package 0 to 1000h at 35℃ 17 25°C, –40°C,125°C, 30 25°C Cycle 1 DBV Package 25°C, –40°C,125°C, 10 Output voltage thermal 25°C Cycle 2 ppm hysteresis (6) 25°C, –40°C,125°C, 20 25°C Cycle 1 DGK Package 25°C, –40°C,125°C, 10 25°C Cycle 2
TURN-ON TIME
0.1% of output voltage settling, C t L = 10 µF, ON Turn-on time 2.5 ms REF3425–Q1
CAPACITIVE LOAD
Stable output capacitor CL 0.1 10 µF range Copyright © 2020 Texas Instruments Incorporated Submit Document Feedback 5 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 V​IN 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