LM5022 - 60V Low Side Controller for Boost and SEPIC from the PowerWise® Family
Datasheet Packaging Samples & Pricing Eval. Boards Reliability Design Tools Application Notes Knowledge Base

Features
Internal 60V Startup Regulator
1A Peak MOSFET Gate Driver
VIN Range 6V to 60V
Duty Cycle Limit of 90%
Programmable UVLO with Hysteresis
Cycle-by-Cycle Current Limit
External Synchronizable (AC-coupled)
Single Resistor Oscillator Frequency Set
Slope Compensation
Adjustable Soft-start
MSOP-10 Package

General Description


The LM5022 is a high voltage low-side N-channel MOSFET controller ideal for use in boost and SEPIC regulators. More...


Applications


Boost Converter
SEPIC Converter
  Typical Application
click for larger image


ParametersValues
Input Min Voltage 6 Volt
Input Max Voltage 60 Volt
Adjustable Output Yes
Feedback Voltage 1.25 Volt
Efficiency (peak) 90 %
Frequency Min 50 kHz
Frequency Max 2000 kHz
Adj Switch Frequency Yes
Sync Pin Yes
On/Off Pin Yes
SoftStart Yes
Error Flag No
Topology Boost, Sepic
Step-Down No
Step-Up Yes
Inverting No
Flyback No
RegType Switching Controller
Multiple Output Capability No
Temperature Min -40 deg C
Temperature Max 125 deg C
Automotive Yes
PowerWise Yes


Typical Performance


click for larger image


  Also Recommended
LM3421Similar Output Power Range, Dedicated For Boost And Buck-boost LED Drivers
LM3423Similar To LM3421 (dedicated LED Driver) With More Features Than LM3421
LM3430Vin 6V To 40V, Adds DHC, LLP-12 Package
LM3481Vin 2.97V To 48V
LM5020Vin 13V To 100V
Additional Resources
Design Tools

Application Notes


Block Diagram


click for larger image



Datasheet
RoHS Compliance Information Size in KbytesDate Click link below to Download
LM5022 60V Low Side Controller for Boost and SEPIC 578
Kbytes
7-Oct-09 Download
LM5022 60V Low Side Controller for Boost and SEPIC (Japanese)
859 Kbytes   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
LM5022EVAL60V Low Side Controller for Boost Evaluation BoardFull productionN/A
 
Buy Now
1+$57.001-
6 weeksN/A
LM5022LEDEVALBoost LED Driver Evaluation BoardFull productionN/A
 
Buy Now
1+$70.001-
8 weeksN/A
LM5022MMEMINI SOIC10NOPB1260RoHS Download Full productionN/A
 
Buy Now
1K+$1.20reel
of
250
ZXTT
5022
6 weeksN/A
LM5022MMMINI SOIC10NOPB
STD
1
1
260
260
RoHS Download Full productionN/A
Samples
Buy Now
1K+$1.20reel
of
1000
ZXTT
5022
6 weeks2000
LM5022MMXMINI SOIC10NOPB
STD
1
1
260
260
RoHS Download Full productionN/A
 
Buy Now
1K+$1.20reel
of
3500
ZXTT
5022
6 weeks5000

General Description


The LM5022 is a high voltage low-side N-channel MOSFET controller ideal for use in boost and SEPIC regulators. It contains all of the features needed to implement single ended primary topologies. Output voltage regulation is based on current-mode control, which eases the design of loop compensation while providing inherent input voltage feed-forward. The LM5022 includes a start-up regulator that operates over a wide input range of 6V to 60V. The PWM controller is designed for high speed capability including an oscillator frequency range up to 2 MHz and total propagation delays less than 100 ns. Additional features include an error amplifier, precision reference, line under-voltage lockout, cycle-by-cycle current limit, slope compensation, soft-start, external synchronization capability and thermal shutdown. The LM5022 is available in the MSOP-10 package.

Reliability Metrics


Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
LM5022MMABCD150XV1038680025950002736338335
LM5022MMEABCD150XV1038680025950002736338335
LM5022MMXABCD150XV1038680025950002736338335

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.


Design Tools


TitleSize in Kbytes Date Click link below to Download    
Current Mode Modeling - Reference Guide 1372 Kbytes 1-Aug-2007 View Online Download  
Matching Driver to LED 543 Kbytes 9-Jan-2008 View Online Download  
Understanding and Applying Current-Mode Control Theory 427 Kbytes 8-Jan-2008 View Online Download  
Article - High PoE Made Easy     View    

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Application Notes


TitleSize in Kbytes Date Click link below to Download
AN-1557: Application Note 1557 LM5022 Evaluation Board 513
Kbytes
22-May-08 Download
AN-1557 (Chinese): Application Note 1557 LM5022 Evaluation Board
497 Kbytes  
AN-1605: Application Note 1605 LM5022 Boost LED Driver Evaluation Board 769
Kbytes
2-Oct-07 Download
AN-1696: Application Note 1696 Designing a Boost LED Driver Using the LM5022 286
Kbytes
22-Feb-08 Download
AN-1696 (Chinese): Application Note 1696 Designing a Boost LED Driver Using the LM5022
410 Kbytes  

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More Application Notes


TitleSize in Kbytes Date Click link below to Download
AN-1976: Application Note 1976 LM5027 Evaluation Board 588
Kbytes
19-Aug-09 Download
AN-1314: Application Note 1314 LM5020 Evaluation Board 612
Kbytes
10-Feb-05 Download

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

[Information as of 8-Nov-2009]