Datasheet REF3430 (Texas Instruments) - 7

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REF3425, REF3430, REF3433, REF3440 , REF3450 www.ti.com
SBAS804F – SEPTEMBER 2017 – REVISED JUNE 2021
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 –40°C ≤ TA ≤ 125°C 2.5 6 ppm/°C (1)
LINE & LOAD REGULATION
ΔVO/ΔVIN Line Regulation VIN = VOUT + VDO (2) to 12 V 2 15 ppm/V IL = 0 mA to 10mA, VIN = V (3) Sourcing 20 30 OUT+ VDO Sinking, REF3425 40 70 ΔV Sinking, REF3430 43 75 O/ΔIL Load Regulation ppm/mA IL = 0 mA to –10mA, VIN = VOUT+ VDO, TA = Sinking, REF3433 48 84 25°C (3) Sinking, REF3440 60 98 Sinking, REF3450 70 140 ISC Short circuit current VOUT = 0 V at TA = 25°C 18 22 mA
NOISE
0.1Hz ≤ f ≤ 10Hz 5 enp-p Low frequency noise (4) µVp-p/V 0.1Hz ≤ f ≤ 10Hz (REF3440 and REF3450) 3.8 Integrated wide band en 10Hz ≤ f ≤ 10kHz 24 µV noise rms Output voltage noise f = 1kHz 0.25 ppm/√Hz en density f = 1kHz (REF3440 and REF3450) 0.2
LONG TERM STABILITY AND HYSTERESIS
0 to 1000h at 35°C 25 Long-term stability (5) DBV Package ppm 1000h to 2000h at 35°C 10 25°C, –40°C,125°C, 30 Output voltage thermal 25°C Cycle 1 ppm hysteresis (6) DBV Package 25°C, –40°C,125°C, 10 25°C Cycle 2
TURN-ON TIME
tON Turn-on time 0.1% of output voltage settling, CL = 10 µF 2.5 ms
CAPACITIVE LOAD
Stable output capacitor CL –40°C ≤ T range A ≤ 125°C 0.1 10 µF
OUTPUT VOLTAGE
REF3425, REF3425T 2.5 REF3430, REF3430T 3.0 VOUT Output voltage REF3433, REF3433T 3.3 V REF3440, REF3440T 4.096 REF3450, REF3450T 5.0
POWER SUPPLY
V V OUT + IN Input voltage 12 V VDO IL Output current capacity VIN = VOUT + VDO to 12 V –10 10 mA Active mode 72 95 IQ Quiescent current µA Shutdown mode 2.5 3 Copyright © 2021 Texas Instruments Incorporated Submit Document Feedback 7 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