SNOSCS3B September 2013  – March 2014 LMP91300

PRODUCTION DATA. 

  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. Terminal Configuration and Functions
  6. Specifications
    1. 6.1Absolute Maximum Ratings
    2. 6.2Handling Ratings
    3. 6.3Recommended Operating Conditions
    4. 6.4Thermal Information
    5. 6.5Electrical Characteristics
    6. 6.6Timing Requirements
    7. 6.7Typical Characteristics
  7. Detailed Description
    1. 7.1Overview
    2. 7.2Functional Block Diagram
    3. 7.3Feature Description
      1. 7.3.1 Oscillator
      2. 7.3.2 Detection
      3. 7.3.3 Comparator
      4. 7.3.4 Low RP, Close Target, Under Range Switch Enable
      5. 7.3.5 Programming The Switching Point And Hysteresis
      6. 7.3.6 Temperature Compensation
      7. 7.3.7 Power Supply
      8. 7.3.8 LED Drive
      9. 7.3.9 SWDRV
      10. 7.3.10Overload Protection
    4. 7.4Device Functional Modes
    5. 7.5Programming
      1. 7.5.1Burning Programmed Values Into The Registers
      2. 7.5.2Single-Wire Interface (SWIF)
        1. 7.5.2.1Write Operation
        2. 7.5.2.2Read Operation
      3. 7.5.3Usage Priority Of Registers
    6. 7.6Register Maps
      1. 7.6.1 DET_H_MSB_INIT - Detection High Threshold MSB (Initial) (Address 0x66)
      2. 7.6.2 DET_H_LSB_INIT - Detection High Threshold LSB (Initial) (Address 0x67)
      3. 7.6.3 DET_L_MSB_INIT - Detection Low Threshold MSB (Initial) (Address 0x68)
      4. 7.6.4 DET_L_LSB_INIT - Detection Low Threshold LSB (Initial) (Address 0x69)
      5. 7.6.5 INFO0 - Device Information 0 (Address 0x6A)
      6. 7.6.6 INFO1 - Device Information 1 (Address 0x6B)
      7. 7.6.7 INFO2 - Device Information 2 (Address 0x6C)
      8. 7.6.8 INFO3 - Device Information 3 (Address 0x6D)
      9. 7.6.9 OSC_CONFIG_0 - Oscillator Configuration 0 Register (Address 0x6E)
      10. 7.6.10
      11. 7.6.11OSC_CONFIG_1 - Oscillator Configuration 1 Register (Address 0x6F)
      12. 7.6.12OSC_CONFIG_2 - Oscillator Configuration 2 Register (Address 0x70)
      13. 7.6.13OSC_CONFIG_3_INIT - Oscillator Configuration 3 Register (Initial) (Address 0x71)
      14. 7.6.14OUT_CONFIG_INIT - Output Configuration Register (Initial) (Address 0x72)
      15. 7.6.15DET_H_MSB_FNL - Detection High Threshold MSB (Final) (Address 0x73)
      16. 7.6.16DET_H_LSB_FNL - Detection High Threshold LSB (Final) (Address 0x74)
      17. 7.6.17DET_L_MSB_FNL - Detection Low Threshold MSB (Final) (Address 0x75)
      18. 7.6.18DET_L_LSB_FNL - Detection Low Threshold LSB (Final) (Address 0x76)
      19. 7.6.19OSC_CONFIG_3_FNL - Oscillator Configuration 3 Register (Final) (Address 0x77)
      20. 7.6.20OUT_CONFIG_FNL - Output Configuration Register (Final) (Address 0x78)
      21. 7.6.21TEMP64 - Temperature In °C + 64 (Address 0x79)
      22. 7.6.22PROXIMITY_MSB - Proximity MSB (Address 0x7A)
      23. 7.6.23PROXIMITY_LSB - Proximity LSB (Address 0x7B)
      24. 7.6.24STATUS - Device Status (Address 0x7E)
      25. 7.6.25BURN_REQ - Burn Request (Address 0x7F)
  8. Application and Implementation
    1. 8.1Application Information
    2. 8.2Typical Application
      1. 8.2.1Design Requirements
      2. 8.2.2Detailed Design Procedure
        1. 8.2.2.1 Quick Start
        2. 8.2.2.2 Determining The RP of an LC Tank
        3. 8.2.2.3 Component Selection And Layout
        4. 8.2.2.4 CF (CFA and CFB Terminals)
        5. 8.2.2.5 NTC (TEMP+ Terminal)
        6. 8.2.2.6 C1
        7. 8.2.2.7 CV+/EXT E
        8. 8.2.2.8 CBY (CBY Terminal)
        9. 8.2.2.9 RSENSE
        10. 8.2.2.10REXT B (EXT B Terminal):
        11. 8.2.2.11R1
        12. 8.2.2.12SENSE1+ And SENSE2+ Terminals (RSENSE1+, RSENSE2+)
        13. 8.2.2.13NPN
        14. 8.2.2.14PNP
        15. 8.2.2.15LED
        16. 8.2.2.16LC Tank and INA and INB Terminals
        17. 8.2.2.17SWDRV Terminal
        18. 8.2.2.18P1 To P5 Terminals
        19. 8.2.2.19GND Terminals
        20. 8.2.2.20NC Terminals
        21. 8.2.2.21Exposed DAP
        22. 8.2.2.22SENSE-
      3. 8.2.3Look-Up Table Calibration
  9. Power Supply Recommendations
  10. 10Layout
    1. 10.1Layout Guidelines
    2. 10.2Layout Example
  11. 11Device and Documentation Support
    1. 11.1Trademarks
    2. 11.2Electrostatic Discharge Caution
    3. 11.3Glossary
  12. 12Mechanical, Packaging, and Orderable Information

1 Features

  • Post Production Configuration and Calibration
  • Programmable Decision Thresholds
  • Programmable Hysteresis
  • Flexible Overload Protection
  • Digital Temperature Compensation
  • Integrated LED driver
  • Small Form Factor, Supports 4mm Sensors (DSBGA Package)
  • Low Power Consumption
  • Integrated Voltage Regulator
  • 3-Wire Capability
  • Supports NPN and PNP Modes
  • Normally Open (NO) and Normally Closed (NC) Supported
  • 16-bit Resolution Threshold Setting

2 Applications

  • Industrial Proximity Detection
  • Industrial Production Lines
  • Industrial Automation

3 Description

The LMP91300 is a complete analog front end (AFE) optimized for use in industrial inductive proximity sensors. The LMP91300 directly converts the RP of the external LC tank into a digital value.

Post-manufacturing configuration and calibration is fully supported. The temperature dependence of the sensor is digitally compensated, using an external temperature sensor. The LMP91300 provides programmable thresholds, programmable temperature compensation and programmable oscillation frequency range. Due to its programmability, the LMP91300 can be used with a wide variety of external inductors and its detection thresholds can be adjusted to the desired detection distances.

An internal voltage regulator allows the device to operate with a supply from 6.5V to 40V. The output can be programmed to drive an external transistor in either NPN or PNP mode.

Available in 4mm × 5mm 24-terminal WQFN and 2.05mm × 2.67mm 20-terminal DSBGA packages, the LMP91300 operates from -40°C to +125°C.

Device Information

ORDER NUMBERPACKAGEBODY SIZE
LMP91300NHZWQFN (24)4mm x 5mm
LMP91300YZRDSBGA (20)2.05mm x 2.67mm

3-Wire PNP Configuration

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