SNVU768 December   2021 LM63440-Q1 , LM63460-Q1 , LM64440-Q1 , LM64460-Q1

 

  1.   Trademarks
  2. 1High-Density EVM Description
    1. 1.1 Typical Applications
    2. 1.2 Features and Electrical Performance
  3. 2EVM Performance Specifications
  4. 3EVM Photo
  5. 4Test Setup and Procedure
    1. 4.1 EVM Connections
    2. 4.2 EVM Setup
    3. 4.3 Test Equipment
    4. 4.4 Recommended Test Setup
      1. 4.4.1 Input Connections
      2. 4.4.2 Output Connections
    5. 4.5 Test Procedure
      1. 4.5.1 Line/Load Regulation and Efficiency
  6. 5Test Data and Performance Curves
    1. 5.1 Conversion Efficiency
    2. 5.2 Output Voltage Regulation
    3. 5.3 Operating Waveforms
      1. 5.3.1 Start-Up and Enable ON/OFF
      2. 5.3.2 Line and Load Transients
      3. 5.3.3 Short Circuit and Recovery
    4. 5.4 Thermal Performance
    5. 5.5 EMI Results – CISPR 25 Class 5
      1. 5.5.1 Conducted EMI
      2. 5.5.2 Radiated EMI
  7. 6EVM Documentation
    1. 6.1 Schematics
      1. 6.1.1 LM63460EVM-2MHZ Schematic
      2. 6.1.2 LM64460EVM-2MHZ Schematic
    2. 6.2 Bill of Materials
      1. 6.2.1 Alternative BOM Configurations
    3. 6.3 PCB Layout
    4. 6.4 Assembly Drawings
  8. 7Device and Documentation Support
    1. 7.1 Device Support
      1. 7.1.1 Development Support
        1. 7.1.1.1 Custom Design With WEBENCH® Tools
    2. 7.2 Documentation Support
      1. 7.2.1 Related Documentation

7.1.1 Development Support

With an input operating voltage as low as 3 V and up to 36 V as specified in Table 7-1, the LM6k family of automotive synchronous buck converters from TI provides flexibility, scalability and optimized solution size for a range of applications. These converters enable DC/DC solutions with high density, low EMI and increased flexibility. Available EMI mitigation features include pseudo-random spread spectrum (PRSS), integrated input bypass capacitors, RBOOT-configured switch-node slew rate control, and optimized package design with symmetrical VIN and PGND pins that shield a small switch-node copper area. All converters are rated for a maximum operating junction temperature of 150°C, have AEC-Q100 grade 1 qualification, and are functional safety capable.

Table 7-1 Automotive Synchronous Buck DC/DC Converter Family
DC/DC CONVERTER RATED IOUT PACKAGE FEATURES EMI MITIGATION
LM60430-Q1, LM60440-Q1 3 A, 4 A WQFN (13) 400 kHz fixed fSW, 3 × 2-mm package Shielded switch node
LM63610-Q1, LM63615-Q1, LM63625-Q1, LM63635-Q1 1 A, 1.5 A, 2.5 A, 3.25 A WSON (12), HTSSOP (16) RT adjustable fSW, MODE/SYNC PRSS
LM61430-Q1, LM61435-Q1, LM61440-Q1, LM61460-Q1 3 A, 3.5 A, 4 A,
6 A		 VQFN-HR (14) RT adjustable fSW, EN/SYNC PRSS, RBOOT
LM62435-Q1, LM62440-Q1 3.5 A, 4 A 2.1 MHz default fSW, MODE/SYNC
LMQ61460-Q1 6 A RT adjustable fSW, EN/SYNC PRSS, RBOOT, integrated capacitors
LMQ62440-Q1 4 A 2.1 MHz default fSW, MODE/SYNC
LM62460-Q1, LM61480-Q1, LM61495-Q1 6 A, 8 A, 10 A VQFN-HR (16) RT adjustable fSW, MODE/SYNC DRSS, RBOOT
LM63460-Q1 6 A VQFN-FCRLF (22) RT adjustable fSW, EN/SYNC, pin FMEA PRSS
LM64460-Q1 2.1 MHz default fSW, MODE/SYNC, pin FMEA

For development support see the following: