SNOSAS1B November   2010  – September 2025 LMD18200QML

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Functional Diagram
  6. 5 Absolute Maximum Ratings
  7. 6 Operating Ratings
  8. 7 Quality Conformance Inspection
  9. 8 LMD18200 Electrical Characteristics DC Parameters
  10. 9 Typical Performance Characteristics
  11. 10Test Circuit
    1. 10.1 Switching Time Definitions
  12. 11Pinout Description
    1. 11.1 Application Information
      1. 11.1.1 TYPES OF PWM SIGNALS
      2. 11.1.2 SIGNAL TRANSITION REQUIREMENTS
      3. 11.1.3 USING THE CURRENT SENSE OUTPUT
      4. 11.1.4 USING THE THERMAL WARNING FLAG
      5. 11.1.5 SUPPLY BYPASSING
      6. 11.1.6 CURRENT LIMITING
      7. 11.1.7 INTERNAL CHARGE PUMP AND USE OF BOOTSTRAP CAPACITORS
      8. 11.1.8 INTERNAL PROTECTION DIODES
    2. 11.2 Typical Applications
      1. 11.2.1 FIXED OFF-TIME CONTROL
      2. 11.2.2 TORQUE REGULATION
      3. 11.2.3 VELOCITY REGULATION
  13. 12Revision History

11.1.3 USING THE CURRENT SENSE OUTPUT

The CURRENT SENSE output (pin 8) has a sensitivity of 377 μA per ampere of output current. For optimal accuracy and linearity of this signal, the value of voltage generating resistor between pin 8 and ground should be chosen to limit the maximum voltage developed at pin 8 to 5V, or less. The maximum voltage compliance is 12V.

It should be noted that the recirculating currents (free wheeling currents) are ignored by the current sense circuitry. Therefore, only the currents in the upper sourcing outputs are sensed.