LP5560

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LP5560 SNVS873E – AUGUST 2012 – REVISED NOVEMBER 2016 LP5560 Programmable Single-LED Driver With Simple Single-Wire Control and Small Solution Size 1 Features 1 Wide Input-Voltage Range: 2.7 V to 5.5 V Adjustable Output Current: 2.8 mA to 19.5 mA Programmable Blinking Sequence with Current Rise and Fall Time Control Default Blinking Sequence for Simple Systems Without Programming Capabilities Single-Wire Interface Constant Current High Side Output Driver Very Low Headroom Voltage (40 mV Typical) Ultra-Small Solution Size – No External Components 2 Applications Indicator LEDs in Cell Phones and Other Portable Devices Card Readers Fuel Dispensers Pedometers Electronic Access Control Where Simple Feedback is Needed 3 Description The LP5560 is a programmable LED driver that can generate variety of blinking sequences with up to three pulses of different length per sequence. Blinking sequences can be programmed through a single-wire interface. Programmable parameters include on and off times as well as rise and fall times. Default sequence is programmed into the LP5560 to enable the use of device in simple systems without programming capabilities. Very low headroom voltage eliminates the need for a boost converter. Indicator LEDs can be driven directly from the battery. Small package size combined with zero external components minimizes the solution size. LP5560 is...