Lowest System Cost with Enhanced Flexibility
• 650 V rated integrated MOSFET
• Simple ON/OFF control, no loop compensation needed
• Selectable current limit through BP/M capacitor value
• Higher current limit extends peak power or, in open frame
applications, maximum continuous power
• Lower current limit improves efficiency in enclosed adapters/
chargers
• Allows optimum TinySwitch-LT choice by swapping devices with no
other circuit redesign
• Tight I2f parameter tolerance reduces system cost
• Maximizes MOSFET and magnetics power delivery
• Minimizes max overload power, reducing cost of transformer,
primary clamp & secondary components
• ON-time extension – extends low-line regulation range/hold-up time
to reduce input bulk capacitance
• Self-biased: no bias winding or bias components
• Frequency jittering reduces EMI filter costs
• Pin-out simplifies heat sinking to the PCB
• SOURCE pins are electrically quiet for low EMI
Enhanced Safety and Reliability Features
• Accurate hysteretic thermal shutdown protection with automatic
recovery eliminates need for manual reset
• Auto-restart delivers <3% of maximum power in short-circuit and
open loop fault conditions
• Output overvoltage shutdown with optional Zener
• Very low component count enhances reliability and enables singlesided
printed circuit board layout
• High bandwidth provides fast turn on with no overshoot and excellent
transient load response
• Extended creepage between DRAIN and all other pins improves field
• reliability
EcoSmart™– Extremely Energy Efficient
• Easily meets all global energy efficiency regulations
• No-load <150 mW at 265 VAC without bias winding,
• <50 mW with bias winding
• ON/OFF control provides constant efficiency down to very light loads
– ideal for mandatory standby consumption regulations
Applications
• Supplies for appliances, home building automation, PC standby and
other auxiliary power supplies.