ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC VREF SHUNT 2.5V SOT23-3
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：2.5V
- Voltage - Output (Max)：20 V
- Current - Output：100 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：-
Download product information
Overview
The ZTL431AQFTA is a three-terminal adjustable precision shunt regulator from Diodes Incorporated, designed for automotive applications. It operates within an ambient temperature range of -40°C to +125°C and features Grade A initial tolerance of 1%. The device allows output voltage adjustment between 2.5V and 20V using external resistors. It supports a cathode current range of 1mA to 100mA with a typical dynamic output impedance of 0.2Ω. The part is housed in an SOT-23 package.
Feature Summary
- AEC-Q100 qualified for automotive environments
- Adjustable output voltage via external divider resistors
- Excellent temperature stability across extended ranges
- Lead-free and fully RoHS compliant construction
Applications
- Optocoupler linearization
- Linear regulators
- Variable references
- Improved zener replacement
Procurement Notes
Verify the specific ordering suffix 'F' corresponds to the SOT-23 package configuration required for your design. Confirm that Grade A (1% tolerance) meets your circuit accuracy requirements. Ensure the component is sourced through authorized channels to guarantee authenticity and compliance with IATF 16949 manufacturing standards.
Selection Notes
Select this component when automotive qualification and high temperature stability are required. Compare against standard TL431 variants if higher maximum operating voltages are needed, as this series is limited to 20V. Consider the SOT-25 package option if a different pinout or thermal profile is preferred over the SOT-23 form factor.
Part Context
This device belongs to the ZTL431AQ family of adjustable precision shunt regulators. It is functionally equivalent to the TL431/TL432 series but offers an extended ambient temperature range and automotive-specific change control. The 'Q' suffix indicates AEC-Q100 qualification, while 'A' denotes the 1% reference voltage tolerance grade.
Replacement Considerations
ZTL431BQFTA serves as a direct substitute offering 0.5% tolerance instead of 1%. For non-automotive designs requiring higher voltage ratings, the standard TL431AFDT may be considered, though it lacks the specific automotive qualification and extended temperature range of the ZTL431AQFTA.
FAQ
What is the maximum cathode voltage rating?
The maximum continuous cathode voltage (VKA) is rated at 20V.
How is the output voltage adjusted?
The output voltage is set to any chosen value between 2.5V and 20V by selecting two external divider resistors.
Is the device stable with capacitive loads?
Yes, the device is stable with a range of capacitive loads, though a capacitor of 4.7nF or greater is recommended between anode and cathode to ensure reliable stability.
