LNK363 – (LNK362 – LNK364) Low Power Off-Line Switcher IC

Part Number: LNK363

Function: (LNK362 – LNK364) Low Power Off-Line Switcher IC

Manufacturer: Power Integrations


1 page
LNK363 image

2 page


LNK362-364 LinkSwitch®-XT Family Energy Efficient, Low Power Off-Line Switcher IC Product Highlights Optimized for Lowest System Cost • Proprietary IC trimming and transformer construction techniques enable Clampless™ designs with LNK362 for lower system cost, component count and higher efficiency • Fully integrated auto-restart for short circuit and open loop protection • Self-biased supply – saves transformer auxiliary winding and associated bias supply components • Frequency jittering greatly reduces EMI • Meets HV creepage requirements between DRAIN and all other pins both on the PCB and at the package • Lowest component count switcher solution Features Superior to Linear/RCC • Accurate hysteretic thermal shutdown protection – automatic recovery improves field reliability • Universal input range allows worldwide operation • Simple ON/OFF control, no loop compensation needed • Eliminates bias winding – simpler, lower cost transformer • Very low component count – higher reliability and single side printed circuit board • Auto-restart reduces delivered power by 95% during short circuit and open loop fault conditions • High bandwidth provides fast turn-on with no overshoot and excellent transient load response EcoSmart®– Extremely Energy-Efficient • Easily meets all global energy efficiency regulations with no added components • No-load consumption <300 mW without bias winding at 265 VAC input (<50 mW with bias winding) • ON/OFF control provides constant efficiency to very light loads – ideal for mandatory CEC regulations Applications • Chargers/adapters for cell/cordless phones, PDAs, digital cameras, MP3/portable audio players, and shavers • Supplies for appliances, industrial systems, and metering Description LinkSwitch-XT incorporates a 700Vpower MOSFET, oscillator, simple ON/OFF control scheme, a high-voltage switched current source, frequency jittering, cycle-by-cycle current limit and thermal shutdown circuitry onto a monolithic IC. The startup + DC + Output Wide Range HV DC Input LinkSwitch-XT D LNK362 FB BP S a) Clampless flyback converter with LNK362 + PI-4086-081005 DC + Output Wide Range HV DC Input LinkSwitch-XT D LNK363-364 FB BP S b) Flyback converter with LNK363/4 PI-4061-081005 Figure 1. Typical Application with LinkSwitch-XT. OUTPUT POWER TABLE(4) 230 VAC ±15% 85-265 VAC PRODUCT(3) Adapter(1) Open Frame(2) Adapter(1) Open Frame(2) LNK362P/G/D 2.8 W 2.8 W 2.6 W 2.6 W LNK363P/G/D 5 W 7.5 W 3.7 W 4.7 W LNK364P/G/D 5.5 W 9W 4W 6W Table 1. Output Power Table. Notes: 1. Minimum continuous power in a typical non-ventilated enclosed adapter measured at 50 °C ambient. 2. Minimum practical continuous power in an open frame design with adequate heat sinking, measured at 50 °C ambient. 3. Packages: P: DIP-8B, G: SMD-8B, D: SO-8C. Please see Part Ordering Information. 4. See Key Application Considerations section for complete description of assumptions. [...]

3 page

LNK363 Datasheet

This entry was posted in Uncategorized. Bookmark the permalink.