LNK6768K集成电路（IC）的ACDC转换器离线开关规格书PDF中文资料

EcoSmart™- Energy Efficient

• Multi-mode control maximizes efficiency over full load range

• No-load consumption below 30 mW at 230 VAC (LNK67xx)

• >75 efficiency with 1 W input at 230 VAC

• >50 efficiency with 0.1 W input at 230 VAC

High Design Flexibility for Low System Cost

• Dramatically simplifies power supply designs

• Eliminates optocoupler and all secondary control circuitry

• ±5 or better output voltage tolerance

• 132 kHz operation reduces transformer and power supply size

• Accurate programmable current limit

• Compensation over line limits overload power

• Frequency jittering reduces EMI filter cost

• Fully integrated soft-start for minimum start-up stress

• 725 V MOSFET simplifies meeting derating requirements (LNK677x)

• 650 V MOSFET for lowest system cost (LNK676x/LNK666x)

• Fast transient response family option (LNK666x)

Extensive Protection Features

• Auto-restart limits power delivery to 3 during overload faults

• Output short-circuit protection (SCP)

• Output overload/over-current protection (OPP, OCP)

• Optional extended shutdown delay time

• Output overvoltage protection (OVP), auto-restart or latching

• Line brown-in/out protection (line UV)

• Line overvoltage (OV) shutdown extends line surge withstand

• Accurate thermal shutdown (OTP), hysteretic or latching

Advanced Green Package Options

• eSIP™-7C package:

• Vertical orientation for minimum PCB footprint

• Simple heat sink mounting using clip or adhesive pad

• eSOP™-12B package:

• Low profile surface mounted for ultra-slim designs

• Heat transfer to PCB via exposed pad and SOURCE pins

• Supports either wave or IR reflow soldering

• eDIP™-12B package:

• Low profile through-hole mounted for ultra-slim designs

• Heat transfer to PCB via exposed pad or optional metal heat sink

• Extended creepage to DRAIN pin

• Heat sink is connected to SOURCE for low EMI

• Halogen free and RoHS compliant