Microchip logo
  • All
  • Products
  • Documents
  • Applications Notes
product primary image

UC1842A

PWM Controller flyback or forward - Low start-up current (0.5mA max.) 500KHz op

Status: In Production

Features:

  • Optimized For Off-Line Control
  • Low Start-Up Current (<1mA)
  • Automatic Feed Forward Compensation
  • Trimmed Oscillator Discharge Current
  • Pulse-By-Pulse Current Limiting
  • Enhanced Load Response Characteristics -
  • Double-Pulse Suppression
  • High-Current Totem-Pole Output (1A Peak)
  • Internally Trimmed Band-gap Reference
  • 500kHz Operation Under-voltage Lockout: SG1843 - 8.4 volts
  • Low Shoot-Through Current <75mA Over Temperature
View More
Overview
Documents
Development Environment
RoHS Information
Add to Cart

Device Overview

Summary

Control ICs provides all the necessary features to implement off-line fixed-frequency, current-mode switching power supplies with a minimum of external components. The current mode architecture demonstrates improved load regulation, pulse-by- pulse current limiting and inherent protection of the power supply output switch

Additional Features
    • Optimized For Off-Line Control
    • Low Start-Up Current (<1mA)
    • Automatic Feed Forward Compensation
    • Trimmed Oscillator Discharge Current
    • Pulse-By-Pulse Current Limiting
    • Enhanced Load Response Characteristics -
    • Double-Pulse Suppression
    • High-Current Totem-Pole Output (1A Peak)
    • Internally Trimmed Band-gap Reference
    • 500kHz Operation Under-voltage Lockout: SG1843 - 8.4 volts
    • Low Shoot-Through Current <75mA Over Temperature
Parametrics
Name
Value
Regulator Type
HI Rel Switching Regulators
Configuration
Current Mode PWMs
Operating Temp Range
to

Documents

Jump to:

Data Sheets

  
381KB

Development tools data is currently unavailable.


Rohs data is currently unavailable.

Buy from Microchip

Grid
View
Table
View
Filter:
Apply
Clear
Only show products with samples
Product
Leads
Package Type
Temp Range
Packing Media
5K Pricing
Buy