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Product Detailed Parameters
- Description：IC VREF SERIES 8TSSOP
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：3.3V
- Voltage - Output (Max)：-
- Current - Output：10 mA
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Supplier Device Package：8-VSSOP
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The REF3433QDGKRQ1 is an automotive-grade series precision voltage reference manufactured by Texas Instruments. It delivers a fixed output voltage of 3.3 V with an initial accuracy of 0.05% and a temperature coefficient of 6 PPM/C. The device operates within a supply voltage range up to 12 V and supports a maximum shunt current of 10 mA. It functions reliably across an extended temperature range from -40°C to +125°C. Packaged in a compact VSSOP-8 surface-mount format, it includes a shutdown feature for power management.
Feature Summary
- Automotive qualification compliant with AEC-Q100 standards for high reliability
- Low drift performance ensuring stable reference voltage over temperature variations
- Integrated shutdown capability to minimize power consumption during idle states
Applications
- Traction inverter designs requiring precise voltage monitoring
- Data acquisition systems needing stable analog references
- Automotive sensor signal conditioning circuits
Procurement Notes
Verify the specific suffix QDGKRQ1 against the manufacturer's latest datasheet to confirm package type and tape-and-reel specifications. Ensure compatibility with AEC-Q100 requirements for your target automotive application. Check for any recent Product Change Notifications that may affect pinout or electrical characteristics before finalizing procurement.
Selection Notes
Select this component when a fixed 3.3 V reference with low temperature drift is required in space-constrained automotive environments. The VSSOP-8 package offers a small footprint suitable for dense PCB layouts. Consider the 10 mA load capability and shutdown feature if power efficiency is critical compared to higher-current alternatives.
Part Context
This part belongs to the REF34xx-Q1 family of low-drift, low-power voltage references designed specifically for automotive applications. It shares functional similarities with other members like the REF3430 but differs in output voltage and package options. The Q1 designation indicates compliance with automotive quality and reliability standards.
Replacement Considerations
Direct substitutes include other REF34xx-Q1 variants such as REF3430QDGKRQ1 for different voltage needs. Non-series replacements require careful evaluation of drift, accuracy, and package compatibility.
