The LM78H24K is a 24V, 0.5A positive voltage regulator from National Semiconductor (now Texas Instruments). It's designed to provide a stable and regulated 24V output voltage from a higher input voltage. This regulator is commonly used in applications requiring a reliable 24V supply, such as industrial control systems, power supplies for electronic equipment, and automotive applications.

Applications

• Industrial Control Systems
• Power Supplies for Electronic Equipment
• Automotive Applications
• Linear Regulators
• Battery Chargers

Features

• Fixed 24V Output: Provides a fixed and regulated 24V DC output voltage, ensuring consistent performance of connected devices.
• 0.5A Output Current: Capable of delivering up to 0.5A of output current, suitable for powering a variety of loads.
• Thermal Overload Protection: Includes thermal overload protection, automatically shutting down the regulator in case of overheating, preventing damage.
• Short Circuit Protection: Offers short circuit protection, automatically limiting the output current in case of a short circuit condition.
• Safe Operating Area (SOA) Protection: Provides SOA protection, ensuring the regulator operates within its safe operating area, preventing damage due to excessive voltage or current.
• Internal Current Limiting: Includes internal current limiting, preventing excessive output current and protecting the regulator.

Benefits

• Stable Power Supply: Regulated output voltage ensures consistent performance of connected devices, preventing voltage fluctuations.
• Reliable Operation: Built-in protection features like thermal overload and short circuit protection ensure reliable operation and prevent damage to the regulator.
• Ease of Use: Simple implementation with minimal external components makes it easy to integrate into various power supply designs.
• Protection Against Damage: Thermal overload, short circuit, and SOA protection prevent damage to the regulator and connected devices, ensuring reliable operation.

Additional Details

The LM78H24K typically comes in a TO-3 package. The specific input voltage range, dropout voltage, and thermal resistance are specified in the Texas Instruments (formerly National Semiconductor) datasheet. It's crucial to refer to the datasheet for detailed specifications, application notes, and recommended operating conditions to ensure optimal performance and reliability. Proper heat sinking is essential for dissipating heat and preventing overheating, especially at higher output currents. A bypass capacitor is recommended on the output.