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S3843 Description

Semiconductor S3843 Current Mode PWM Controller Descriptions The S3843 is fixed Current PWM controller for Off-line and DC-DC converter applications.

S3843 Key Features

  • Optimized for off-line and DC to DC converters
  • Low start up current < 1 mA
  • Operating range up to 500 KHz
  • Pulse-by-pulse current limiting
  • Under Voltage Lock Out with hysteresis
  • High current totempole output
  • Short shutdown delay time ; typical 100nsec

S3843 Applications

  • Optimized for off-line and DC to DC converters