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UCC28084DR +BOM

Current mode push-pull PWM with prog. slope comp, 3.5ms soft start, 4.3/4.1 UVLO, -40°C to 85°C

UCC28084DR General Description

For those requiring soft-start functionality, the UCC38083 and UCC38084 models offer a typical interval time of 3.5 ms, while the UCC38085 and UCC38086 provide quicker turn-on with less than 100 µs. Additionally, the different devices feature varying turn on/off thresholds, catering to a range of application requirements

Key Features

  • Programmable Slope Compensation
  • Internal Soft-Start on the UCC38083/4
  • Cycle-by-Cycle Current Limiting
  • Low Start-Up Current of 120 µA and 1.5 mA Typical Run Current
  • Single External Component Oscillator Programmable from 50 kHz to 1 MHz
  • High-Current Totem-Pole Dual Output Stage Drives Push-Pull Configuration with 1-A Sink and 0.5-A Source Capability
  • Current Sense Discharge Transistor to Improve Dynamic Response
  • Internally Trimmed Bandgap Reference
  • Undervoltage Lockout with Hysteresis
  • APPLICATIONS
    • High-Efficiency Switch-Mode Power Supplies
    • Telecom dc-to-dc Converters
    • Point-of-Load or Point-of-Use Power Modules
    • Low-Cost Push-Pull and Half-Bridge Applications

Specifications

Source Content uid UCC28084DR Pbfree Code Yes
Part Life Cycle Code Active Pin Count 8
Reach Compliance Code compliant ECCN Code EAR99
HTS Code 8542.39.00.01 Analog IC - Other Type SWITCHING CONTROLLER
Control Mode CURRENT-MODE Control Technique PULSE WIDTH MODULATION
JESD-30 Code R-PDSO-G8 Moisture Sensitivity Level 1
Number of Functions 1 Number of Terminals 8
Peak Reflow Temperature (Cel) 260 Surface Mount YES
Switcher Configuration PUSH-PULL Technology BICMOS
Temperature Grade INDUSTRIAL Terminal Finish Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal Form GULL WING Terminal Position DUAL
Time@Peak Reflow Temperature-Max (s) NOT SPECIFIED

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