The TL431CZTA is a precision adjustable shunt regulator manufactured by TAEJIN / HTC Korea. It is a three-terminal adjustable shunt regulator with specified thermal stability over applicable automotive, commercial, and military temperature ranges. The output voltage can be set to any value between Vref (approximately 2.5 V) and 36 V with two external resistors. This device is commonly used in voltage regulation, adjustable power supplies, and error amplifier applications.

Applications:

• Voltage regulation
• Adjustable power supplies
• Error amplifier
• Voltage monitoring
• Comparator with voltage reference

Features:

• Programmable output voltage: 2.5 V to 36 V
• Low dynamic output impedance: 0.2 Ω (typical)
• Sink current capability: 1 mA to 100 mA
• Low output noise
• Wide operating temperature range
• Available in various packages including TO-92 and SOT-23

Benefits:

• Versatile voltage regulation due to adjustable output voltage.
• Stable output voltage due to low dynamic output impedance.
• Flexible sink current capability for a wide range of applications.
• Reduced noise in the regulated output.
• Reliable operation in various temperature environments.
• Compact size allows for flexible design options.

Additional Details:

The TL431CZTA operates as a shunt regulator, maintaining a constant voltage across its output terminals by shunting excess current to ground. The output voltage is determined by two external resistors connected as a voltage divider between the output, reference, and anode terminals. The device features a low dynamic output impedance, ensuring a stable output voltage even with varying load currents. Key specifications include a reference voltage of approximately 2.5V, a sink current range of 1mA to 100mA, and an operating temperature range. This shunt regulator is a versatile and reliable solution for a wide range of voltage regulation and control applications.