SNOSAR2I September   2008  – June 2026 LMP8601-Q1 , LMP8602-Q1 , LMP8603-Q1

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics: Vs = 3.3V
    6. 5.6 Electrical Characteristics: Vs = 5V
    7. 5.7 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
      1. 6.1.1 Theory of Operation
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Offset Input Pin
      2. 6.3.2 Additional Second-Order Low-Pass Filter
    4. 6.4 Device Functional Modes
      1. 6.4.1 Gain Adjustment
        1. 6.4.1.1 Reducing Gain
        2. 6.4.1.2 Increasing Gain
      2. 6.4.2 Driving Switched Capacitive Loads
  8. 7 Application and Implementation
    1. 7.1 Typical Applications
      1. 7.1.1 High-Side, Current-Sensing Application
        1. 7.1.1.1 Design Requirements
        2. 7.1.1.2 Detailed Design Procedure
        3. 7.1.1.3 Application Curve
      2. 7.1.2 Low-Side, Current-Sensing Application
      3. 7.1.3 Battery Current Monitor Application
      4. 7.1.4 Advanced Battery Charger Application
      5. 7.1.5 Current Loop Receiver Application
      6. 7.1.6 Power Supply Recommendations
      7. 7.1.7 Layout
        1. 7.1.7.1 Layout Guidelines
        2. 7.1.7.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Development Support
    2. 8.2 Documentation Support
      1. 8.2.1 Related Documentation
      2. 8.2.2 Related Links
    3. 8.3 Receiving Notification of Documentation Updates
    4. 8.4 Support Resources
    5. 8.5 Trademarks
    6. 8.6 Electrostatic Discharge Caution
    7. 8.7 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

7.1.4 Advanced Battery Charger Application

Figure 7-4 can be used to realize an advanced battery charger that has the capability to monitor the exact net current that flows in and out the battery as show in Figure 7-5. The output signal of the LMP860x-Q1 is digitized with the ADC and used as an input for the charge controller. The Charge controller can be used to regulate the charger circuit to deliver exactly the current that is required by the load, avoiding overcharging a fully loaded battery.

LMP8601-Q1 LMP8602-Q1 LMP8603-Q1 Advanced Battery Charger Application
NOTE: K2 = 2 for LMP8601-Q1; 5 for LMP8602-Q1; or 10 for LMP8603-Q1.
Figure 7-5 Advanced Battery Charger Application