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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 0.39% 8SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tube,Tube
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：1.3V
- Voltage - Output (Max)：36 V
- Current - Output：100 mA
- Operating Temperature：-25°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The UC29431D is a precision adjustable shunt regulator manufactured by Texas Instruments. It features a reference voltage of 1.3 V and operates within a temperature range of -25°C to +85°C. The device is housed in an 8-SOIC surface-mount package. It supports an output current of 100 mA and maintains a tolerance of ±0.39%. The maximum operating voltage is 36 V. This component is classified under PMIC voltage references.
Feature Summary
- Provides precise adjustable shunt regulation with high accuracy
- Operates as a stable voltage reference source
- Designed for surface-mount integration
Applications
- Voltage reference circuits
- Precision power supply regulation
- Battery charging control systems
Procurement Notes
Verify the specific datasheet version for the UC29431D to confirm electrical characteristics and pinout configurations. Ensure compatibility with system voltage requirements, specifically the 36 V maximum limit. Check for RoHS compliance status if required by assembly standards. Confirm the 8-SOIC package dimensions match PCB footprint designs. Validate thermal performance within the specified -25°C to +85°C operating range.
Selection Notes
Select this component when a low-cost, precision adjustable shunt regulator is required for voltage referencing applications. Consider the 100 mA current capability and 1.3 V internal reference for circuit design. The 8-SOIC package suits space-constrained surface-mount designs. Evaluate the ±0.39% tolerance against system accuracy needs. Compare against other shunt regulators if higher current or different voltage ranges are necessary.
Part Context
The UC29431D belongs to the UC2943x series of precision analog controllers from Texas Instruments. It serves as a fundamental building block for power management integrated circuits. The device complements other components in feedback loop power control architectures. Its classification as a PMIC voltage reference highlights its role in stabilizing system voltages.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Verify functional equivalence with other adjustable shunt regulators if direct substitution is required.
