The UCN5821A is a BiMOS II latched driver that combines CMOS logic with bipolar outputs. It is designed for use in systems that require multiple high-current outputs, such as those found in LED displays, relays, solenoids, and other industrial control applications. The device includes a CMOS shift register, data latches, and bipolar sourcing outputs, providing a complete solution for driving a variety of loads.

Applications:

• LED dot-matrix displays
• Relay drivers
• Solenoid drivers
• Stepper motor control
• Thermal printers
• Industrial control systems

Features:

• High-voltage outputs: 80 V
• High output current: 500 mA per output
• CMOS logic compatibility
• Low power consumption
• Serial data input
• Strobe and output enable functions
• Thermal shutdown protection
• Internal clamp diodes for inductive loads

Benefits:

• Simplified system design due to integrated features
• Reduced component count, lowering costs
• Improved reliability with thermal shutdown protection
• High output voltage and current capabilities for driving demanding loads
• CMOS compatibility enables easy interfacing with microcontrollers and other logic devices

Additional Details:

The UCN5821A is an 8-bit latched driver capable of sourcing up to 500 mA per channel at voltages up to 80V. The device includes built-in protection features such as thermal shutdown and output clamp diodes, which protect against inductive kickback when driving inductive loads. The CMOS-compatible inputs allow for direct interfacing with microcontrollers and other digital logic devices. The serial data input and strobe/output enable functions allow for easy control of the outputs, making it suitable for a wide range of applications.

The device operates with a supply voltage range of 4.5 V to 5.5 V for the logic section and can handle output voltages up to 80 V. The UCN5821A is available in various packages to suit different application requirements. The integrated features and robust design make it a reliable and cost-effective solution for driving multiple high-current loads.