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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ SOT23-3
- Series：-
- Mfr：3PEAK
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：-
- Voltage - Output (Max)：36 V
- Current - Output：80 mA
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23G-3
- Grade：-
- Qualification：-
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Overview
The TPR434B-3STR-S is a precision programmable shunt voltage reference in an SOT23G-3 package. It features a typical reference voltage of 2.495 V with a tolerance of 0.5% at 25°C. The output voltage is adjustable from VREF to 36 V using external resistors. Key electrical parameters include a typical dynamic output impedance of 0.2 Ω and a sink current capability ranging from 1 mA to 80 mA. The device operates within a temperature range of −40°C to +125°C.
Feature Summary
- Adjustable output voltage via external feedback resistor network
- Low dynamic output impedance for stable regulation
- Wide operating temperature range suitable for industrial environments
Applications
- Power Module
- LED Lighting
- Current Sensing System
- Instrumentation
- Industrial Control
Procurement Notes
Verify the specific ordering suffix matches the required pin configuration, as the TPR433 and TPR434 share identical electrical performance but utilize different pin orders. Confirm that the SOT23G-3 package dimensions align with the target PCB layout constraints. Ensure the selected component meets the necessary thermal management requirements for the intended operating environment.
Selection Notes
Select this component when a precise, adjustable shunt reference is required for circuits operating between VREF and 36 V. Consider the TPR434B-3STR-S specifically if its unique pinout order differs from the TPR433 variant while maintaining the same electrical specifications. Evaluate the 0.2 Ω output impedance and wide current range against load stability requirements.
Part Context
This part belongs to the TPR43x series of precision programmable shunt voltage references manufactured by 3PEAK. The series includes variants like the TPR433 and TPR434, which offer identical electrical characteristics but differ in pin arrangement. These devices are designed to replace ordinary Zener diodes in applications requiring higher accuracy and lower output impedance.
Replacement Considerations
The datasheet identifies the TPR433B-3STR-S as a functional alternative with identical electrical performance, distinguished only by its pin order. Verify pin compatibility before substitution to ensure correct circuit operation.
