SNOSD17G October   2017  – December 2020 LM74700-Q1

PRODMIX  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Switching Characteristics
  7. 7 Typical Characteristics
  8. 8 Parameter Measurement Information
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1 Input Voltage
      2. 9.3.2 Charge Pump
      3. 9.3.3 Gate Driver
      4. 9.3.4 Enable
    4. 9.4 Device Functional Modes
      1. 9.4.1 Shutdown Mode
      2. 9.4.2 Conduction Mode
        1. 9.4.2.1 Regulated Conduction Mode
        2. 9.4.2.2 Full Conduction Mode
        3. 9.4.2.3 Reverse Current Protection Mode
  10. 10Application and Implementation
    1. 10.1 Application Information
      1. 10.1.1 Typical Application
        1. 10.1.1.1 Design Requirements
        2. 10.1.1.2 Detailed Design Procedure
          1. 10.1.1.2.1 Design Considerations
          2. 10.1.1.2.2 MOSFET Selection
          3. 10.1.1.2.3 Charge Pump VCAP, input and output capacitance
        3. 10.1.1.3 Selection of TVS Diodes for 12-V Battery Protection Applications
        4. 10.1.1.4 Selection of TVS Diodes and MOSFET for 24-V Battery Protection Applications
        5. 10.1.1.5 Application Curves
    2. 10.2 OR-ing Application Configuration
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 Receiving Notification of Documentation Updates
    2. 13.2 Support Resources
    3. 13.3 Trademarks
    4. 13.4 Electrostatic Discharge Caution
    5. 13.5 Glossary
  14. 14Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

5 Pin Configuration and Functions

GUID-4CD96EA3-7034-46CD-9A6F-18CED3C31537-low.gifFigure 5-1 DBV Package6-Pin SOT-23Top View
Table 5-1 Pin Functions
PINI/O(1)DESCRIPTION
NO.NAME
1VCAPOCharge pump output. Connect to external charge pump capacitor
2GNDGGround pin
3ENIEnable pin. Can be connected to ANODE for always ON operation
4CATHODEICathode of the diode. Connect to the drain of the external N-channel MOSFET
5GATEOGate drive output. Connect to gate of the external N-channel MOSFET
6ANODEIAnode of the diode and input power. Connect to the source of the external N-channel MOSFET
(1) I = Input, O = Output, G = GND
GUID-20201209-CA0I-ZWFS-GSZR-SL0BGP72L1DG-low.gifFigure 5-2 DDF Package8-Pin SOT-23Top View
Table 5-2 Pin Functions
PINI/O(1)DESCRIPTION
NO.NAME
1ENIEnable pin. Can be connected to ANODE for always ON operation
2GNDGGround pin
3N.CNo connection
4VCAPOCharge pump output. Connect to external charge pump capacitor
5ANODEIAnode of the diode and input power. Connect to the source of the external N-channel MOSFET
6GATEOGate drive output. Connect to gate of the external N-channel MOSFET
7N.CNo connection
8CATHODEICathode of the diode. Connect to the drain of the external N-channel MOSFET
(1) I = Input, O = Output, G = GND