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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 1% SOT23
- 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：-
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Overview
The ZTL432AFTA is a three-terminal adjustable precision shunt regulator from Diodes Incorporated, packaged in SOT-23. It offers excellent temperature stability and output current handling up to 100mA. The output voltage is programmable between VREF (2.5V) and 20V using two external divider resistors. This device features an initial tolerance of 1% (Grade A) and operates within an ambient temperature range of -40°C to +125°C. It serves as a high-performance replacement for Zener diodes.
Feature Summary
- Adjustable output voltage settable via external resistors
- High sink current capability up to 100mA
- Excellent temperature stability across wide operating range
- Totally lead-free and fully RoHS compliant
Applications
- Opto-coupler linearization
- Linear regulators
- Improved Zener applications
- Variable reference circuits
Procurement Notes
Verify the specific package type matches the design requirements, as the ZTL432 series includes variants with different pinouts such as SOT-23F. Confirm that the Grade A tolerance meets the circuit accuracy needs. Ensure compliance with environmental directives like RoHS 2 if required by the project specifications.
Selection Notes
Select this component when a cost-effective, adjustable shunt regulator is needed to replace standard Zener diodes. The ZTL432 differs from the ZTL431 primarily in its pinout configuration for SOT-23 packages. Consider the 1% initial tolerance and the maximum 20V operation limit when designing the feedback network.
Part Context
The ZTL432AFTA belongs to the ZTL431/ZTL432 family of adjustable precision shunt regulators. These devices are functionally equivalent to TL431/TL432 components but feature a maximum operation voltage of 20V. The 'A' suffix denotes the 1% initial tolerance grade, while 'FTA' indicates the SOT-23 package with tape and reel packaging.
Replacement Considerations
Functionally equivalent to TL431/TL432 except for the maximum operation voltage limit of 20V. For direct pin-compatible replacement in SOT-23 layouts where ZTL431 pinout is unsuitable, verify against other ZTL432 variants or check datasheet pin assignments carefully.
