ST2221A drivers equivalent, 8-bit constant current led drivers.
z Constant Current Output : Current with one resistor for 5mA to 90mA
z Maximum Clock Frequency : 25MHz (Cascade Operation)
z 5V CMOS Compatible Input
z Package :
PD.
The ST2221A is specifically designed for LED and LED DISPLAY constant current drivers. The value of constant current can be varied using an external resistor (Iout = 5 ~90mA). The devices include an 8-bit shift registers, latches, and constant curren.
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