The UCN5871B is a BiMOS II serial-input, latched source driver designed for use in driving LED displays and similar high-current applications. This device combines CMOS logic with high-voltage bipolar outputs, providing an efficient and compact solution for controlling multiple LEDs or other loads. It features an 8-bit shift register, data latches, and high-voltage sourcing outputs, making it suitable for various display and control systems.

Applications:

• LED dot-matrix displays
• Bar graph displays
• Industrial control indicators
• Relay and solenoid drivers
• Instrumentation displays

Features:

• High-voltage outputs: 80 V
• Output current: 500 mA per output
• 8-bit shift register
• Data latches
• CMOS logic compatibility
• Serial data input
• Output enable function
• 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 UCN5871B 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 output enable function 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 UCN5871B 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.