The LP5522 is a simple single wire programmable LED controller in six bump DSBGA package.
It provides constant current flow through high side driver. Output current can be set from 1 mA to
20 mA by using an external resistor on the ISET pin. If no external resistor is used, output
current is set to 5 mA default current. The LP5522 is controlled using only one signal. The signal
controls either directly the LED driver or it launches previously programmed blinking
The LP5522 works autonomously without a clock signal from the master device. Very low LED
driver headroom voltage makes possible to use supply voltages close to LED forward voltage. Current
consumption of the LP5522 is minimized when LED is turned off and once controller is disabled all
supporting functions are also shut down. Very small DSBGA package together with minimum number of
external components is a best fit for handheld devices.
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