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Product Detailed Parameters
- Description：IC VREF SHUNT 0.5% SOT23-3
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- 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：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23-3
- Grade：-
- Qualification：-
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Overview
The LM4041C12QDBZT is a micropower shunt voltage reference from Texas Instruments, operating within an extended temperature range of -40°C to +125°C. It provides a fixed reference voltage of 1.23 V with an initial accuracy of ±0.5%. The device features a low temperature coefficient of 100 ppm/°C and supports a maximum shunt current of 12 mA. It operates on a minimum cathode current of 60 µA and utilizes a SOT-23-3 surface-mount package.
Feature Summary
- Provides stable reference output without requiring external capacitors for stability
- Maintains performance across wide operating current and temperature ranges
- Utilizes Zener-zap trimming technology for precise voltage tolerance
Applications
- Data acquisition systems
- Power supply monitoring circuits
- Precision audio equipment
- Battery-powered devices
Procurement Notes
Verify the specific suffix 'Q' indicates automotive qualification (AEC-Q100) and the '12' denotes the 1.23V fixed output variant. Confirm the 'DBZT' suffix corresponds to the SOT-23-3 package in reel format. Cross-reference the manufacturer datasheet to ensure the component meets the required extended temperature specifications for your application environment.
Selection Notes
Select this component when a fixed 1.23V reference is required in space-constrained designs using SOT-23-3 packages. It is suitable for applications demanding high precision with ±0.5% initial accuracy and low noise. Ensure the circuit design accommodates the minimum operating current of 60 µA and maximum shunt current of 12 mA for proper regulation.
Part Context
This part belongs to the LM4041 family of micropower shunt voltage references. The family offers various accuracy grades and temperature ranges, including industrial (-40°C to +85°C) and extended (-40°C to +125°C) versions. The LM4041 series is designed for portable applications due to its low power consumption and small footprint options.
Replacement Considerations
LM4041C12IDBZT: Industrial temperature version (-40°C to +85°C). LM4041D12QDBZT: Lower accuracy grade (1%) with same temperature range. LM4041C12DBZR: Same electrical specs but different packaging format.
