SLVUBU6A April   2020  – June 2020 TPS274160

 

  1.   TPS274160 Evaluation Module User's Guide
    1.     Trademarks
    2. 1 Introduction
      1. 1.1 Description
      2. 1.2 Applications
      3. 1.3 Features
    3. 2 TPS274160 Schematic
    4. 3 Connection Descriptions
      1. 3.1 Connectors
      2. 3.2 Jumpers
    5. 4 TPS274160 EVM Assembly Drawings and Layout
    6. 5 Variable Resistor for CS and CL
      1. 5.1 Current Sense Resistor
      2. 5.2 Current Limit Resistor
    7. 6 Bill of Materials
  2.   Revision History

5.1 Current Sense Resistor

For version B, high-accuracy current sensing allows better real-time monitoring effect and more accurate diagnostics without further calibration. It provides the real-time output current monitoring. A current mirror is used to source 1/K of the load current, and is reflected as VCS = ICS × RCS. Ensure the CS voltage is in the linear region (0–4 V) when in normal operation.

Also, when fault condition happens, it works as a diagnostics report pin. When open load/short to battery happen in on-state, VCS almost equals to zero. When current limit, thermal shutdown/swing, open load/ short to battery in off-state happen, the voltage is clamped at VCS,H.

Equation 1. eq01_slvuao8.gif