LinkSwitch-HP

Energy Efficient, High-Power Off-Line Switcher with Accurate Primary-Side Regulation (PSR)
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Typical Application Schematic

The LinkSwitch™-HP family of flyback power supply ICs incorporate a primary side regulated (PSR) controller and high-voltage power MOSFET in a single package. The IC family includes devices optimized for constant voltage (CV) operation at power ranges from 9W to 90 W. LinkSwitch-HP IC controller features +/-5% CV accuracy, selectable current limit, programmable latching or hysteretic OVP, UVP and OTP, improved overload power compensation over line, fast AC reset, and programmable shutdown delay time.

Product Highlights

EcoSmart™ - Energy Efficient

  • Multi-mode control maximizes efficiency over full load range
  • No-load consumption below 30 mW at 230 VAC
  • >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
  • 132 kHz operation reduces transformer and power supply size
  • Accurate programmable current limit
  • 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

  • Output short-circuit protection (SCP)
  • Ouput overload/over-current protection (OPP, OCP)
  • Optional extended shutdown delay time
  • Output overvoltage protection (OVP), hysteretic 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

Applications

  • LCD Monitor and TV
  • Adapter
  • Appliances
  • Embedded power supplies (DVD, set-top box)
  • Industrial

 

Output Power (Watts)
PRODUCT3 Heat Sink 230 VAC ±15% 85-265 VAC
Adapter Open
Frame
Adapter Open
Frame
LNK6xx3K/V PCB-W1 15 25 9 15
LNK6xx3K PCB-R2 21 35 12 21
LNK6xx3E Metal 21 35 13 27
LNK6xx4K/V PCB-W1 16 28 11 20
LNK6xx4K PCB-R2 22 39 15 28
LNK6xx4E Metal 30 47 20 36
LNK6xx5K/V PCB-W1 19 30 13 22
LNK6xx5K PCB-R2 26 42 18 31
LNK6xx5E Metal 40 593 26 45
LNK6xx6K/V PCB-W1 21 34 15 26
LNK6xx6K PCB-R2 30 48 22 37
LNK6xx6E Metal 60 883 40 683
LNK6xx7K/V PCB-W1 25 41 19 30
LNK6xx7K PCB-R2 36 59 27 43
LNK6xx7E Metal 853 1173 55 903

Notes:

  1. PCB heat sink with wave soldering.
  2. PCB heat sink with IR reflow soldering (exposed pad thermally connected to PCB).
  3. Maximum power specified based on proper thermal dissipation.
  4. Packages: E: eSIP-7C, K: eSOP-12B, V: eDIP-12B. See Table 2 in datasheet for all device options.

Product Documents
Package Informationpackageinfo.pdf
Data Sheetlinkswitch-hp_family_datasheet.pdf

Reference Designs
RDR-313 30 W 12 V General Purpose Adapter
RDR-321 17 W Dual output LCD Monitor