1FEATURES
2• Programmable Blinking Sequence
– 1 to 3 Programmable Pulses
– 1 ms to 255 ms LED on Time
– 10 ms to 2500 ms LED Off Time
– Single or Continuous Run of Programmed
Blinking Sequence
• Constant Current High Side Output Driver
• Adjustable Current with External Resistor
• 0.2 μA Typical Shutdown Current
• Autonomous Operation without External Clock
• DSBGA-6 Package with 0.4 mm Pitch:
– 1.215 mm x 0.815 mm x 0.6 mm (LxWxH)

APPLICATIONS
• Indicator Lights
• Phone Cosmetics
• Toys

DESCRIPTION
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
sequence.
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.