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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 0.5% SC70-6
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：2.495V
- Voltage - Output (Max)：36 V
- Current - Output：100 mA
- Operating Temperature：0°C ~ 70°C (TA)
- Mounting Type：Surface Mount
- Package / Case：6-TSSOP, SC-88, SOT-363
- Supplier Device Package：SC-70-6
- Grade：-
- Qualification：-
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Overview
The TL431BCDCKR is an adjustable precision shunt regulator from Texas Instruments, housed in a 6-pin SC-70 surface-mount package. It provides an adjustable output voltage range from 2.495V to 36V with an initial accuracy of ±0.5%. The device supports a maximum cathode current of 100mA and operates within a temperature range of 0°C to 70°C. Key electrical specifications include a maximum input voltage of 37V and a typical temperature coefficient of 92ppm/°C.
Feature Summary
- Provides precise programmable reference voltage functionality via external resistor divider
- Features sharp turn-on characteristics for stable regulation performance
- Designed as a low-cost alternative to traditional Zener diodes
Applications
- Voltage regulation in power supply circuits
- Portable equipment power management
- Control circuitry requiring precise voltage references
Procurement Notes
Verify the specific suffix 'CKR' confirms the SC-70 package and tape-and-reel packaging configuration. Ensure the 'B' grade designation aligns with the required ±0.5% initial accuracy tolerance for the application. Confirm RoHS compliance status matches project environmental requirements before finalizing procurement orders.
Selection Notes
Select this component when space-constrained designs require a precision shunt regulator in a compact SC-70 footprint. The ±0.5% accuracy suits applications demanding tighter voltage tolerances than standard Zeners. Consider the 100mA current capability and operating temperature range against load requirements and ambient conditions.
Part Context
This device belongs to the widely used TL431 family of programmable references, originally released to improve upon earlier TL430 regulators. It serves as a fundamental building block in analog and mixed-signal power management systems, offering high stability and reliability across various industrial and consumer electronics applications.
Replacement Considerations
Compatible substitutes include TL431ACDCKR and TL431AIDCKR, which offer similar functionality but may differ in initial accuracy grades or extended temperature ranges. Verify pinout compatibility and thermal performance when transitioning between these variants.
