UCN-4807A

The UCN-4807A has the following features including Addressable Data Entry;50 V Cu+ent-Sink Outputs;CMOS, PMOS, NMOS, TTL Compatible;Low-Power CMOS Logic and Latches;Wide Supply-Voltage Range.

THESE 8-BIT, ADDRESSABLE, latched drivers are used in a wide variety of power demultiplexer applications. They can drive all types of common peripheral power loads, including lamps, relays, solenoids, LEDs, printer heads, heaters, and stepper motors. They can also be used as DMUX drivers for higher power loads requiring discrete power semiconductors.Type UCN-4807A driver are identical except for output current ratings. The former is rated for a maximum of 200 mA per output while the latter is capable of sinking up to 600 mA per output. The 50 V outputs are bipolar NPN saturated switches with first stage driver currents optimized for each version.A typical application for Type UCN-4808A, driving a common-cathode LED display, is shown below. Many multi-character LED displays can make use of the high-current capability of this device. With the DATA input held high, the proper address code may be furnished by a 3-bit counter. Note that with DATA held constant and the ADDRESS sequenced through the binary  code, setup and hold times associated  with  CHIP SELECT may be ignored.

The second application illustrates the use of Type UCN-4807A as a multiplexed power driver. A wide variety of peripheral loads including lamps,relays, solenoids, LEDs, and stepper motors can be accommodated. Inductive loads require external transient suppression.These devices can also be employed as multi-channel drivers for discrete high-current or high-voltage semiconductors.The products described in this document are designed, developed and manufactured as contemplated for general use, including without limitation, ordinary industrial use, general office use, personal use, and household use, but are not designed, developed and manufactured as contemplated (1) for any use that includes fatal risks or dangers that, unless extremely high safety is secured, could have a serious effect to the public, and could lead directly to death, personal injury, severe physical damage or other loss.