UC1843A-DIE (ACTIVE)

Current-Mode PWM Controller, UC1843A-DIE

 

Description

The UC1843A-DIE is a pin for pin compatible improved version of the UC1843-DIE. Providing the necessary features to control current-mode switched-mode power supplies.

Features

  • Rad-Tolerant: 30 kRad (Si) TID(1)
  • Optimized for Offline and DC-to-DC Converters
  • Low Start-Up Current
  • Trimmed Oscillator Discharge Current
  • Automatic Feed Forward Compensation
  • Pulse-by-Pulse Current Limiting
  • Enhanced Load Response Characteristics
  • Undervoltage Lockout With Hysteresis
  • Double-Pulse Suppression
  • High-Current Totem-Pole Output
  • Internally Trimmed Bandgap Reference
  • Low RO Error Amplifier

(1) Radiation tolerance is a typical value based upon initial device qualification with dose rate = 10 mrad/sec. Radiation Lot Acceptance Testing is available - contact factory for details.

View more

Parametrics Compare all products in PWM and Resonant Controller

 
Topology
Control Method
Vin (Min) (V)
Vin (Max) (V)
Frequency (Max) (kHz)
UVLO Thresholds On/Off (V)
Duty Cycle (Max) (%)
Gate Drive (Typ) (A)
Special Features
Rating
UC1843A-DIE
N/A   
Current   
7.6   
30   
500   
N/A   
100   
1   
Error Amplifier   
Catalog   

Other qualified versions of UC1843A-DIE

Version Part Number Definition
Enhanced Product UC1843A-EP Supports Defense, Aerospace and Medical Applications
Space UC1843A-SP Radiation tolerant, ceramic packaging and qualified for use in Space-based application

Featured tools and software