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The UCN4801A is an integrated circuit designed as a high-voltage, high-current latch/driver. It comprises eight CMOS data latches, each driving a bipolar Darlington transistor output stage, along with control circuitry for common CLEAR, STROBE, and OUTPUT ENABLE functions. The device features open-collector outputs with integral diodes for inductive load transient suppression.
| Input Voltage Range | -0.3 to Vcc + 0.3 V |
|---|---|
| Continuous Collector Current | 500 mA |
| Power Dissipation | 20 W |
| Operating Ambient Temperature Range | -20 to +85 °C |
The CMOS inputs are compatible with standard CMOS, PMOS and NMOS circuits.
Outputs are suitable for relays, solenoids, stepping motors, LED or incandescent displays.