SLVSJ15 June   2026 LMP8601 , LMP8602 , LMP8603

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

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

3 Description

The LMP8601, LMP8602, and LMP8603 devices are fixed-gain, precision current-sense amplifiers (also referred to as current-shunt monitors). The input common-mode voltage range is –22V to +60V when operating from a single 5V supply, or –4V to +27V with a 3.3V supply. The LMP860x are parts designed for unidirectional and bidirectional current sensing applications.

These devices have a precise gain of 20x (LMP8601), 50x (LMP8602), and 100x (LMP8603), and are adequate in most targeted applications to drive an ADC to full-scale value. The fixed gain is achieved in two separate stages: a preamplifier with a gain of 10x and an output stage buffer amplifier with a gain of 2x (LMP8601), 5x (LMP8602), or 10x (LMP8603). The path between the two stages is brought out on two pins to enable the option of an additional filter network or modifying the gain.

The offset input pin enables these devices for unidirectional or bidirectional single supply voltage current sensing.

Package Information
PART NUMBER PACKAGE(1) PACKAGE SIZE(2)
LMP860x D (SOIC, 8) 4.90mm × 6.00mm
LMP8602
LMP8603		 DGK (VSSOP, 8) 3.00mm × 4.90mm
(1) For more information, see Section 10.
(2) The package size (length × width) is a nominal value and includes pins, where applicable.
LMP8601 LMP8602 LMP8603 Typical Applications Typical Applications