SCEA144 December   2024 LSF0101 , LSF0102 , LSF0108 , LSF0204

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1How Does the LSF000x Differentiate From the LSF010x During Setup?
  5. 2How is the Internal Body Diode of the LSF NMOS Configured?
  6. 3Are Pullup Resistors Required for Push-Pull Applications with the LSF?
  7. 4How is Power Consumption Calculated for LSF Devices?
  8. 5Can I use LDO as a Power Supply?
  9. 6What if my I/Os Operate Lower Than VREFA?
  10. 7Summary
  11. 8References

Abstract

The LSF Type translators utilize passive switches to level shift voltages, allowing the device to support both open drain and push pull interface signals. Board designers have the freedom to adjust the device behavior with external components to satisfy specific system needs. As a result, designing with the LSF Family requires additional attention due to specific biasing requirements, external RC component guidelines, and other design considerations.

This application note takes a deeper look into some of the most commonly asked questions regarding this device and serves as an extension to the existing app note regarding the operation of the LSF family devices. Please see Voltage Translation with the LSF Family for an introduction to how the LSF Family devices operate in example applications.