LP5522 - Programmable LED Driver from the PowerWise® Family

Datasheet Packaging Samples & Pricing Eval. Boards Application Notes Knowledge Base

Features
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 uA typical shutdown current
Autonomous operation without external clock
Micro SMD-6 package with 0.4 mm pitch:
1.215 mm x 0.815 mm x 0.6 mm (LxWxH)

General Description


The LP5522 is a simple single wire programmable LED controller in six bump micro SMD package. More...


Applications


Indicator lights
Phone cosmetics
Toys
  Typical Application
*click for larger image


Parametric Table     expand
Parametric Table    collapse
Regulated LEDs 1
Total LED Current 20 mA
PowerWise Technology Programmable Stored Blinking Sequence
Regulated LEDs 1
Total LED Current 20 mA
PowerWise Technology Programmable Stored Blinking Sequence
Supply Current 0.04 mA
Input Min Voltage 2.7 Volt
Input Max Voltage 5.5 Volt
PWM BrightCtrl Yes
Analog-V BrightCtrl No
Ambient Light Compensation No
RGB-LED No
Temperature Min -30 deg C
Temperature Max 85 deg C
Automotive Selection Guide Yes
PowerWise Yes
View Using Catalog


Typical Performance


click for larger image


  Additional Resources
Application Notes (see below)


Block Diagram


*click for larger image



Datasheet
RoHS Compliance Information Size in KbytesDate Click link below to Download
LP5522 Programmable LED Driver 255 Kbytes 13-Jun-07 View Online
Download

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Package Availability, Models, Samples & Pricing
Part NumberPackageFactory Lead TimeModelsSamples &
Electronic
Orders
Budgetary PricingStd
Pack
Size
Package
Marking
Format
TypePinsSpec.MSL
Rating
Peak
Reflow
RoHS
Report
CAD
Symbols
WeeksQtyQty$US each
LP5522TMEVProgrammable LED Driver from the PowerWise® FamilyFull productionN/A
 
Buy Now
1+$80.001-
6 weeksN/A
LP5522TMMICRO SMD6NOPB1260RoHS N/A Full productionN/A
Samples
Buy Now
1K+$0.50reel
of
250
XV
I 6
6 weeksN/A
LP5522TMXMICRO SMD6NOPB1260RoHS N/A Full productionN/A
 
Buy Now
1K+$0.50reel
of
3000
XV
I 6
16 weeksN/A

General Description


The LP5522 is a simple single wire programmable LED controller in six bump micro SMD 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 micro SMD package together with minimum number of external components is a best fit for handheld devices.

Application Notes


TitleSize in Kbytes Date Click link below to Download
AN-1636: AN-1636 LP5522 Evaluation Kit 1568 Kbytes 13-Jun-07 Download
AN-1636 (Chinese): AN-1636 LP5522 Evaluation Kit
435 Kbytes  

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More Application Notes


TitleSize in Kbytes Date Click link below to Download
AN-1502: AN-1502 LP5526 Evaluation Kit 2362 Kbytes 12-Mar-07 Download
AN-1632: AN-1632 LP5521 Evaluation Kit 2039 Kbytes 27-Aug-08 Download
AN-1702: AN-1702 LP5524 Evaluation Kit 491 Kbytes 17-Mar-08 Download
AN-1523: AN-1523 LP5521 Power Efficiency Considerations 5526 Kbytes 17-Apr-08 Download
AN-1562: AN-1562 LP5521 Programming Considerations 761 Kbytes 17-Apr-08 Download
AN-1442: Application Note 1442 Design and Programming Examples for Lighting Management Unit LP5526 749 Kbytes 26-Jan-07 Download
AN-1442 (Chinese): Application Note 1442 Design and Programming Examples for Lighting Management Unit LP5526
638 Kbytes  

If you have trouble printing or viewing PDF file(s), see Printing Problems.

[Information as of 20-Nov-2008]