Description
The OM75491 and OM75492 are interface circuits designed to be used in conjunction with MOS integrated circuits and common-cathode LED's in serially addressed multi-digit displays_ The number of drivers required for this time-multiplexed system is minimized as a result of the segmentaddress-and-digit-scan method of LED drive_
Features
- Source or sink capability per driver (DM75491)
50 mA.
- Sink capability per driver (DM75492)
250 mA.
- MOS compatability (low input current).
- Low standby power,.
- High-gain Darlington circuits
schematic and connection diagrams
DM75491 (each driver)
(1,7,8,14)
DM75492 (each driver)
(14,3,5,8,10,12)
_---t(1,2,6, 7,9, 13).
- -'-'V+ollr-+-t
(11)
v"
TO OTHER.