LP5560

VDD

LED

GND

CTRL

+

-

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An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

LP5560

SNVS873D – AUGUST 2012 – REVISED JUNE 2016

LP5560 Programmable LED Driver With Single-Wire Interface

1

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 available in TI’s tiny 4-pin DSBGA package

with 0.4-mm pitch.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

LP5560

DSBGA (4)

0.886 mm × 0.886 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

Typical Application