ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC VREF SHUNT 0.1% SC70-5
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR)
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：1.225V
- Voltage - Output (Max)：-
- Current - Output：12 mA
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：5-TSSOP, SC-70-5, SOT-353
- Supplier Device Package：SC-70-5
- Grade：-
- Qualification：-
Download product information
Overview
The TL4051A12QDCKT is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 1.225V with an initial tolerance of ±0.1%. The device operates within an extended temperature range of -40°C to 125°C and features a low temperature coefficient of 50ppm/°C. It requires a minimum cathode current of 65µA for regulation and supports a maximum output current of 12mA. The component is housed in a compact SC-70-5 surface-mount package, ensuring stability across wide load conditions without the need for external output capacitors.
Feature Summary
- Fixed 1.225V output with high initial accuracy
- Micropower operation suitable for battery applications
- Stable performance across wide capacitive loads
- Low noise and low temperature drift characteristics
Applications
- Data acquisition systems
- Portable instrumentation
- Battery-powered equipment
- Process control loops
Procurement Notes
Verify that the specific suffix 'DCKT' corresponds to the SC-70-5 package and tape-and-reel delivery format as documented in official Texas Instruments ordering information. Confirm that the 'A' grade designation aligns with the required ±0.1% initial tolerance specifications for the target application design.
Selection Notes
Select this component when a fixed 1.225V reference with tight initial tolerance is required in a minimal footprint. The SC-70-5 package offers space efficiency compared to larger alternatives. Ensure the application can maintain the minimum operating current of 65µA to guarantee proper regulation and stable output voltage under all expected load conditions.
Part Context
This part belongs to the TL4051 family of precision micropower shunt voltage references from Texas Instruments. The family includes variants with different output voltages, tolerances, and package options. The 'Q' suffix indicates automotive-grade qualification, while 'A' denotes the highest accuracy tier within the series, providing strict initial tolerance limits.
Replacement Considerations
TL4051A12QDBZT (SOT-23-3 package)
FAQ
Does the TL4051A12QDCKT require an output capacitor for stability?
No, the device is designed to be stable under all capacitive load conditions without requiring an external output capacitor.
What is the minimum current required for regulation?
The device requires a minimum cathode current of 65µA to maintain proper voltage regulation.
