SNVS628H October   2009  – December 2019 LM5060

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Typical Application Circuit
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin 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 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
    4. 7.4 Device Functional Modes
      1. 7.4.1 Power-Up Sequence
      2. 7.4.2 Status Conditions
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1  Gate Control
      2. 8.1.2  Fault Timer
      3. 8.1.3  VGS Considerations
      4. 8.1.4  VDS Fault Condition
      5. 8.1.5  Overcurrent Fault
      6. 8.1.6  Restart After Overcurrent Fault Event
      7. 8.1.7  Enable
      8. 8.1.8  UVLO
      9. 8.1.9  OVP
      10. 8.1.10 Restart After OVP Event
      11. 8.1.11 nPGD Pin
    2. 8.2 Typical Applications
      1. 8.2.1 Example Number 1: LM5060EVAL Design
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 VDS Fault Detection and Selecting Sense Pin Resistor RS
          2. 8.2.1.2.2 Turn-On Time
          3. 8.2.1.2.3 Fault Detection Delay Time
          4. 8.2.1.2.4 MOSFET Selection
          5. 8.2.1.2.5 Input and Output Capacitors
          6. 8.2.1.2.6 UVLO, OVP
          7. 8.2.1.2.7 POWER GOOD Indicator
          8. 8.2.1.2.8 Input Bypass Capacitor
          9. 8.2.1.2.9 Large Load Capacitance
        3. 8.2.1.3 Application Curves
      2. 8.2.2 Example Number 2: Reverse Polarity Protection With Diodes
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Application Curve
      3. 8.2.3 Example Number 3: Reverse Polarity Protection With Resistor
        1. 8.2.3.1 Design Requirements
        2. 8.2.3.2 Detailed Design Procedure
          1. 8.2.3.2.1 Reverse Polarity Protection With a Resistor
          2. 8.2.3.2.2 Fault Detection With RS and RO
        3. 8.2.3.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
    3. 10.3 Thermal Considerations
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Community Resources
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

7.4.2 Status Conditions

Output responses of the LM5060 to various input conditions is shown in Table 1. The input parameters include Enable (EN), UVLO, OVP, input voltage (VIN), Start-Up Fault (VGS) and Run Fault (VDS) conditions. The output responses are the VIN pin current consumption, the GATE charge current, the TIMER capacitor charge (or discharge) current, the GATE discharge current if the timer capacitor voltage has reached the VTMRH threshold (typically 2 V), as well as the status of nPGD.

LM5060 30104223.gifFigure 21. Voltages During Normal Start Up Sequence

Table 1. Overview of Operating Conditions

INPUTS OUTPUTS STATUS
EN UVLO OVP
(typ) 		VIN
(typ) 		SENSE-OUT GATE-OUT VIN Current
(typ) 		GATE Current
(typ) 		TIMER GATE after
TIMER > 2 V 		nPGD
L L – >5.10 V – – 0.009 mA 2.2 mA sink Low – – Disabled
L H – >5.10 V – – 0.009 mA 2.2 mA sink Low – – Disabled
H L <2 V >5.10 V SENSE>OUT – 0.56 mA 2.2 mA sink Low – H Standby
SENSE<OUT L
H L >2 V >5.10 V SENSE>OUT – 0.56 mA 80 mA sink Low – H Standby
SENSE<OUT L
H H <2 V >5.10 V SENSE>OUT <5 V 1.4 mA 24-µA source 6-µA source 80 mA sink H Enabled
SENSE<OUT Low – L
H H <2 V >5.10 V SENSE>OUT >5 V 1.4 mA 24-µA source 11-µA source 80 mA sink H Enabled
SENSE<OUT Low – L
H H >2 V >5.10 V SENSE>OUT – 1.4 mA 80 mA sink Low – H Over-voltage
SENSE<OUT L
H H <2 V <5.10 V – – 1.4 mA 2.2 mA sink
(see (1))		 Low – H Power on reset
(1) The 2.2 mA sink current is valid for with the VIN pin ≥ 5.1 V. When the VIN pin < 5.1 V the sink current is lower. See ‘GATE Pin Off Current vs. VIN’ plot inTypical Characteristics.