TIDA-01514 Reference Design

Texas Instruments

Protection and Light-Load Detection Reference Design for Antenna Modules

Description

The TIDA-01514 reference design provides protection and diagnostics for antenna modules for use in automotive infotainment and navigation systems. This design is an alternate solution for antenna low-dropout linear regulators (LDOs) for the purpose of achieving lower ohmic drop (IR) while meeting the necessary protection measures such as short circuit: short-to-battery: reverse current: and overvoltage protection. The design also meets the subsystem-level diagnostic requirements such as precise light load and overload detection.

Features
  • Open Load Detection at 10 mA (Typical)Selectable Overcurrent Detection at 300 mA: 600 mA: 900 mA: 1.2 AShutoff in 1 μs (Typical) to Short-to-Battery FaultFast Response of 200 ns (Typical) to Short-to-Ground FaultLow IR Drop With TPS25940-Q1 (42 mΩ RON)
Applications
  • Automotive head unit
  • Locator/tracker
  • Rear seat entertainment
  • Telematics control unit
  • Digital cockpit processing unit
  • Emergency call (eCall)
  • Aftermarket head unit
  • DC analog input/output module
  • Binary input module
  • Smart telematics gateway
Product Categories
  • Power management