SLUSC82B April   2017  – July 2026 UCC24630

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
    6. 5.6 Timing Requirements
    7. 5.7 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Start Up and UVLO
      2. 6.3.2 Volt-Sec SR Driver On-Time Control
      3. 6.3.3 CCM Dead Time
      4. 6.3.4 Standby Operation
      5. 6.3.5 Pin Fault Protection
        1. 6.3.5.1 VPC Pin Overvoltage
        2. 6.3.5.2 VPC Pin Open
        3. 6.3.5.3 VSC Pin Open
        4. 6.3.5.4 TBLK Pin Open
        5. 6.3.5.5 VPC and VSC Short to Ground
        6. 6.3.5.6 TBLK Pin Short to Ground
    4. 6.4 Device Functional Modes
      1. 6.4.1 Start-Up
      2. 6.4.2 Normal Operation
      3. 6.4.3 Standby Operation
      4. 6.4.4 Conditions to Stop Operation
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 AC-to-DC Adapter, 19.5V, 65W
      2. 7.2.2 Design Requirements
      3. 7.2.3 Calculation of Component Values
        1. 7.2.3.1 VPC Input
        2. 7.2.3.2 VSC Input
        3. 7.2.3.3 TBLK Input
      4. 7.2.4 Application Curves
    3. 7.3 Best Design Practices
    4. 7.4 Power Supply Recommendations
    5. 7.5 Layout
      1. 7.5.1 Layout Guidelines
        1. 7.5.1.1 VDD Pin
        2. 7.5.1.2 VPC Pin
        3. 7.5.1.3 VSC Pin
        4. 7.5.1.4 GND Pin
        5. 7.5.1.5 TBLK Pin
        6. 7.5.1.6 DRV Pin
      2. 7.5.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Device Nomenclature
        1. 8.1.1.1 Definition of Terms
    2. 8.2 Receiving Notification of Documentation Updates
    3. 8.3 Support Resources
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

5.6 Timing Requirements

Over operating free-air temperature range, VDD = 12V, TA = –40°C to 125°C, TA = TJ (unless otherwise noted)
PARAMETERTEST CONDITIONMINTYPMAXUNIT
DRV
tRDRV high-side rise timeVVDD = 12V, CL = 3.3nF, VDRV = 2V to 8V2754ns
VVDD = 5V, CL = 3.3nF, VDRV = 1V to 4V50100ns
tFDRV low-side fall timeVVDD = 12V, CL = 3.3nF, VDRV = 8V to 2V2054ns
VVDD = 5V, CL = 3.3nF, VDRV = 4V to 1V1550ns
tDRVONPropagation delay to DRV HighVVPC = 1V to –0.05V falling to DRV high,
VVDD = 12V, VDRV = 0V to 2V		80160ns
tDRVOFFPropagation delay to DRV LowTest mode6595ns
VPC Input
tVPC-SPLVPC sampling time window81100125ns
tVPC-BLKMinimum VPC pulse for SR DRV operationRTBLK = 5kΩ169203239ns
RTBLK = 50kΩ0.871.041.2µs
SR On Control
tSRONMINSR minimum on time after VPC falling.300350425ns
tOFFSR off blanking time from DRV falling.2.352.52.65us
CCM Dead Time
tCCMDTSR turn-off dead time in CCM cycle limitFSW = 100kHz, RTBLK = 50kΩ
(1µs tVPC-BLK setting)		500600700ns
Standby Operation
tENTOTime to disable SR operation, enter standbyTime to disable DRV11.512.814.1ms
tENTime to enable SR operation, exit standby operationTime to enable DRV(1)2.32.562.82ms
(1) The device exits standby operation as soon as nEN occurs within tEN.