Datasheet Texas Instruments LP5522 — 数据表

LP5522
www.ti.com SNVS488A – JUNE 2007 – REVISED MARCH 2013 Programmable LED Driver
Check for Samples: LP5522 FEATURES 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. 1 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 ВµA 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) The LP5522 works autonomously without a clock …