TNY264P Datasheet, PDF (3/19 Pages) Power Integrations, Inc. – 2.4W Battery Charger/Adapter

DER-3
2.4W Battery Charger/Adapter
February 4, 2004
List Of Figures
Figure 1 – Flyback Converter – 2.4W 6V 0.4A................................................................................................ 5
Figure 2 – PCB Layout .................................................................................................................................... 6
Figure 3 – Transformer Winding...................................................................................................................... 8
Figure 4 – Transformer construction ............................................................................................................... 9
Figure 5 – Efficiency Vs Output Current ........................................................................................................ 11
Figure 6 – Load Regulation ........................................................................................................................... 12
Figure 7 – No Load Input Power.................................................................................................................... 12
Figure 8 – Oscilloscope Probe Prepared for Ripple Measurement............................................................... 13
Figure 9 – Oscilloscope Probe with Probe Master 5125BA BNC Adapter .................................................... 13
Figure 10 – Output Voltage Ripple (worst case) at Vin = 264 Vac, Vo = 6.0 V, Io = 400 mA ....................... 14
Figure 11 – EN55022 Class B, Line, artificial hand connected to output return ........................................... 15
Figure 12 – EN55022 Class B, Neutral, artificial hand connected to output return....................................... 15
Figure 13 – EN55022 Class B, Line, with out artificial hand connected to output return .............................. 16
Figure 14 – EN55022 Class B, Neutral, with out artificial hand connected to output return ......................... 16
List Of Tables
Table 1 – Power Supply Specification ______________________________________________________ 4
Table 2 – Bill of Materials ________________________________________________________________ 7
Table 3 – Transformer BOM_____________________________________________________________ 10
Important Notes:
Although this board is designed to satisfy safety isolation requirements, the engineering
prototype has not been agency approved. Therefore, all testing should be performed
using an isolation transformer to provide the AC input to the prototype board.
Design Reports contain a power supply design specification, schematic, bill of materials,
and transformer documentation. Performance data and typical operation characteristics
are included. Typically only a single prototype has been built.
Page 3 of 19
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