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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 1% TO92
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：2.5V
- Voltage - Output (Max)：36 V
- Current - Output：40 µA
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Through Hole
- Package / Case：TO-226-3, TO-92-3 Long Body, Formed Leads
- Supplier Device Package：TO-92 (TO-226)
- Grade：-
- Qualification：-
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Overview
The NCP431AVLPRAG is a programmable precision shunt reference from onsemi, housed in a TO-92 (TO-226) package. It operates with a cathode-to-anode voltage range of Vref to 36 V and supports a continuous cathode current of 40 µA to 100 mA. The device features a typical reference input voltage tolerance of ±1% at 25°C and an equivalent full-range temperature coefficient of 50 ppm/°C. It functions as a low temperature coefficient zener, offering dynamic impedance of 0.22 Ω typical.
Feature Summary
- Programmable output voltage adjustable from the internal reference level up to 36 V using external resistors.
- Low minimum operating current capability, enabling extremely low no-load consumption in secondary regulators.
- Temperature compensated for operation over the full rated ambient temperature range of -40°C to +125°C.
- Low dynamic output impedance ensures stable regulation performance across the specified operating current range.
Applications
- Voltage adapters
- Switching power supplies
- Precision voltage references
- Chargers
- Instrumentation
Procurement Notes
Verify the specific suffix 'VLPRAG' corresponds to the TO-92 straight lead tape and reel packaging configuration. Confirm the 'V' grade indicates the extended -40°C to +125°C temperature range and 1% tolerance. Ensure compatibility with through-hole assembly processes given the TO-92 form factor. Check for any recent Product Change Notifications regarding manufacturing site or material composition updates.
Selection Notes
Select this component when a through-hole programmable shunt regulator is required for high-temperature environments up to 125°C. The 1% tolerance variant suits applications needing tighter initial accuracy than standard grades. Consider the low minimum cathode current for battery-powered or low-power standby modes where minimizing quiescent drain is critical for system efficiency.
Part Context
This part belongs to the NCP431 series of three-terminal programmable shunt regulator diodes. It serves as a monolithic IC voltage reference that replaces traditional zener diodes in many circuits. The series includes variants with different tolerances and temperature ranges, packaged in SOIC-8, SOT-23, and TO-92 formats to suit various board space and thermal requirements.
Replacement Considerations
NCP431AILPRAG
FAQ
What is the pinout configuration for the NCP431AVLPRAG?
Pin 1 is Reference, Pin 2 is Anode, and Pin 3 is Cathode.
How does the NCP431AVLPRAG differ from the NCP431AILPRAG?
The NCP431AVLPRAG is qualified for an extended operating temperature range of -40°C to +125°C, whereas the NCP431AILPRAG typically operates from -40°C to +85°C.
