The UDN2901A is a 16-pin chip which contains seven 'high-side switches' - The load connects between the transistor output and 0V and the transistor conducts current to V+ when turned on.
Darlington Driver (UDN2901A)
Control of a ULN2901A driver.
This program outputs 7-bit data to the B.0 through B.6 pins which connect to an ULN2901A driver.
There is no specific UDN2901A create module but the BCX38C darlington transistor create modules (low-side switch) may potentially be used instead (shown connected to buzzer).
Bill of Materials
|UDN2901A Darlington Driver||?||1||Buy Now|
|16-pin 0.3" DIL IC socket||ICH016||1||Buy Now|
|100nF miniature polyester capacitor||CAP001||1||Buy Now|
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