LP5522

GND

GNDT

CTRL

VDD

ISET

LED

VIN

LP5522

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SNVS488A – JUNE 2007 – REVISED MARCH 2013

Programmable LED Driver

Check for Samples: LP5522

1

FEATURES

DESCRIPTION

The LP5522 is a simple single wire programmable

2

•

Programmable Blinking Sequence

LED controller in six bump DSBGA package. It

–

1 to 3 Programmable Pulses

provides constant current flow through high side

–

1 ms to 255 ms LED on Time

driver. Output current can be set from 1 mA to 20 mA

by using an external resistor on the ISET pin. If no

–

10 ms to 2500 ms LED Off Time

external resistor is used, output current is set to 5 mA

–

Single or Continuous Run of Programmed

default current. The LP5522 is controlled using only

Blinking Sequence

one signal. The signal controls either directly the LED

•

Constant Current High Side Output Driver

driver or it launches previously programmed blinking

sequence.

•

Adjustable Current with External Resistor

•

0.2 µA Typical Shutdown Current

The LP5522 works autonomously without a clock

signal from the master device. Very low LED driver

•

Autonomous Operation without External Clock

headroom voltage makes possible to use supply

•

DSBGA-6 Package with 0.4 mm Pitch:

voltages close to LED forward voltage. Current

–

1.215 mm x 0.815 mm x 0.6 mm (LxWxH)

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

APPLICATIONS

DSBGA package together with minimum number of

•

Indicator Lights

external components is a best fit for handheld

•

Phone Cosmetics

devices.

•

Toys

Typical Application

1

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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

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PRODUCTION DATA information is current as of publication date.

Copyright © 2007–2013, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.