Line Switcher 7-Pin PDIP-C

TinySwitch-PK incorporates a 700 V MOSFET, oscillator, highvoltage switched current source, current limit (user selectable), and thermal shutdown circuitry. A unique peak mode feature boosts current limit and frequency for peak load conditions. The boosted current limit provides the peak output power while the increased peak mode frequency ensures the transformer can be sized for continuous load conditions rather than peak power demands.

• Output Power - Adapter : 16 W
• Output Power - Open Frame : 28 W
• Output Power - Peak : 34 W
• Lowest System Cost with Enhanced Flexibility
  • Simple ON/OFF control, no loop compensation needed
  • Unique Peak Mode feature extends power range without increasing transformer size
  • Maximum frequency and current limit boosted at peak loads
  • Selectable current limit through BP/M capacitor value
  • Higher current limit extends maximum power in open frame
  • Lower current limit improves efficiency in enclosed adapters
  • Allows optimum TinySwitch-PK choice by swapping devices with no other circuit redesign
  • Tight I2f parameter tolerance reduces system cost
  • Maximizes MOSFET and magnetics power delivery
  • ON time extension – typically extends low line regulation range/hold-up time to reduce input bulk capacitance
  • Self-biased: no bias winding required for TNY375-376; winding required for TNY377-380
  • Frequency jittering reduces EMI filter costs
  • Optimized pin out eases pcb/external heat sinking
  • Quiet source-connected heat sink pins for low EMI