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TinySwitch-PK

All the features of TinySwitch-III, plus a peak power mode further extending its power capability
tinySwitchPK.gif
Typical Peak Power Application

Description:

  • Simple ON/OFF control
  • More power from one transformer
  • Tight I2f parameter reduces system cost
  • 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
  • Frequency jittering reduces EMI filter costs

Applications:

TinySwitch-PK is ideally suited for applications with high peak-to-continuous power demand, including:

  • DVDs
  • Set-top decoders
  • Active speakers (e.g., PC audio)
  • Audio amplifiers
  • Modems
  • Photo printers
Output Power (Watts)
PRODUCT1 230 VAC ±15% 85-265 VAC
Adpt.2 OF3 Peak Adpt.2 OF3 Peak
TNY375P4
TNY375G4
TNY375D4		 8.5 15 16.5 6 11.5 12.5
TNY376P4
TNY376G4
TNY376D4		 10 19 22 7 15 17
TNY377P
TNY377G		 13 23.5 28 8 18 23
TNY378P
TNY378G		 16 28 34 10 21.5 27
TNY379P
TNY379G		 18 32 39 12 25 31
TNY380P
TNY380G		 20 36.5 45 14 28.5 35

Notes:

  1. Packages: P: DIP-8C, G: SMD-8C. See the Part Ordering Information section of the TinySwitch-PK Data Sheet for more details.
  2. Minimum continuous power in a typical non-ventilated enclosed adapter measured at +50 °C ambient. Use of an external heatsink will increase power capability.
  3. Minimum continuous power in an open frame design (see the Key Applications Considerations section of the TinySwitch-PK Data Sheet for more details).
  4. See Key Application Considerations.
Product Documents
Application Notesan42.pdf AN-42
Package Informationpackageinfo.pdf
Data Sheetstnypk_family_datasheet.pdf TNY375-380
Reference Designs*
RDK-115 7.5 W Continuous, 13 W Peak DVD/Set-Top Box power supply with > 70% active-mode efficiency and < 140 mW no-load consumption

* DAKs/RDKs include a working power supply, sample devices, unpopulated pcb, data sheet, comprehensive engineering report, PI Expert design software and other related documentation.

Visit the Design Examples page for additional circuits using this product family.

EcoSmart® - Energy-Efficiency Technology
  • Green RoomEasily meets all global energy efficiency regulations
  • No-load consumption <50 mW with bias winding and <150 mW without bias winding at 265 VAC input
  • ON/OFF control provides constant efficiency down to very light loads - ideal for CEC regulations and 1 W PC standby requirements