SNVS484H January   2007  – July 2015 LM5001 , LM5001-Q1

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 High-Voltage VCC Regulator
      2. 7.3.2 Oscillator
      3. 7.3.3 External Synchronization
      4. 7.3.4 Enable / Standby
      5. 7.3.5 Error Amplifier and PWM Comparator
      6. 7.3.6 Current Amplifier and Slope Compensation
      7. 7.3.7 Thermal Protection
      8. 7.3.8 Power MOSFET
  8. 8 Applications and Implementation
    1. 8.1 Application Information
      1. 8.1.1 VIN
      2. 8.1.2 SW Pin
      3. 8.1.3 EN / UVLO Voltage Divider Selection
      4. 8.1.4 Soft-Start
    2. 8.2 Typical Applications
      1. 8.2.1 Non-Isolated Flyback
      2. 8.2.2 Isolated Flyback
      3. 8.2.3 Boost
      4. 8.2.4 24-V SEPIC
      5. 8.2.5 12-V Automotive SEPIC
  9. 9 Layout
    1. 9.1 Layout Guidelines
  10. 10Device and Documentation Support
    1. 10.1 Related Links
    2. 10.2 Trademarks
    3. 10.3 Electrostatic Discharge Caution
    4. 10.4 Glossary
  11. 11Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

1 Features

  • AEC-Q100 Qualified (TJ = –40°C to 125°C)
  • Integrated 75-V N-Channel MOSFET
  • Ultra-Wide Input Voltage Range from
    3.1 V to 75 V
  • Integrated High Voltage Bias Regulator
  • Adjustable Output Voltage
  • 1.5% Output Voltage Accuracy
  • Current Mode Control with Selectable Compensation
  • Wide Bandwidth Error Amplifier
  • Integrated Current Sensing and Limiting
  • Integrated Slope Compensation
  • 85% Maximum Duty Cycle Limit
  • Single Resistor Oscillator Programming
  • Oscillator Synchronization Capability
  • Enable / Undervoltage Lockout (UVLO) Pin
  • Thermal Shutdown

2 Applications

  • DC-DC Power Supplies for Industrial, Communications, and Automotive Applications
  • Boost, Flyback, SEPIC and Forward Converter Topologies

3 Description

The LM5001 high-voltage switch-mode regulator features all of the functions necessary to implement efficient high-voltage Boost, Flyback, SEPIC and Forward converters, using few external components. This easy-to-use regulator integrates a 75-V N­Channel MOSFET with a 1-A peak current limit. Current mode control provides inherently simple loop compensation and line-voltage feed-forward for superior rejection of input transients. The switching frequency is set with a single resistor and is programmable up to 1.5 MHz. The oscillator can also be synchronized to an external clock. Additional protection features include: current limit, thermal shutdown, undervoltage lockout and remote shutdown capability.

Device Information(1)

DEVICE NAME PACKAGE BODY SIZE
LM5001 SOIC (8) 4.9 mm x 3.91 mm
WSON (8) 4 mm x 4 mm
LM5001Q1 SOIC (8) 4.9 mm x 3.91 mm
  1. For all available packages, see the orderable addendum at the end of the datasheet.
LM5001 LM5001-Q1 20215701.gif

4 Revision History

Changes from G Revision (April 2014) to H Revision

  • Changed to match the new ESD tableGo

Changes from F Revision (March 2013) to G Revision

  • Added LM5001-Q1 option to Electrical Characteristics tableGo

Changes from E Revision (March 2013) to F Revision

  • Added availability of LM5001-Q1 option Go
  • Changed to new TI standard: Added Handling Ratings table and the Device and Documentation Support section.Go