View TNY266P1_1327616.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

Design Example Report
Title 4.9W power supply using TNY266P Input: 90 - 265 VAC Specification Output: 5V/1.5A, 3.3V/1.5A, 12V/0.5A, -12V/15mA Application Author Document Number Date Revision DVD Player Power Integrations Applications Department DER-10 February 4, 2004 1.0
Summary and Features * * * * * * * Low cost no common-mode choke no Y-cap no X-cap low EMI even with output grounded good output cross-regulation even with no TL431 ~ 200 mW input power during standby using low-cost "DC Switch"
The products and applications illustrated herein (including circuits external to the products and transformer construction) may be covered by one or more U.S. and foreign patents or potentially by pending U.S. and foreign patent applications assigned to Power Integrations. A complete list of Power Integrations' patents may be found at www.powerint.com.
Power Integrations 5245 Hellyer Avenue, San Jose, CA 95138 USA. Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com
DER-10
4.9W DVD power supply using TNY266P
February 4, 2004
Table Of Contents
Introduction................................................................................................................. 3 Photograph................................................................................................................. 4 Power Supply Specification ........................................................................................ 5 Schematic................................................................................................................... 6 Circuit Description ...................................................................................................... 7 5.1 Input EMI Filtering ............................................................................................... 7 5.2 Primary Clamp Snubber ...................................................................................... 7 5.3 Output filtering..................................................................................................... 7 5.4 Output Feedback................................................................................................. 7 5.5 "DC Switch" ......................................................................................................... 7 6 PCB Layout ................................................................................................................ 8 7 Bill Of Materials .......................................................................................................... 9 8 Transformer Specification......................................................................................... 10 8.1 Electrical Diagram ............................................................................................. 10 8.2 Electrical Specifications..................................................................................... 10 8.3 Materials............................................................................................................ 10 8.4 Transformer Build Diagram ............................................................................... 11 8.5 Copper Foil Preparation .................................................................................... 11 8.6 Transformer Construction.................................................................................. 12 9 Transformer Spreadsheets....................................................................................... 13 10 Performance Data................................................................................................. 16 10.1 Standby Input Power during DC switch off operation ........................................ 16 10.2 Full-load Efficiency ............................................................................................ 16 10.3 Input Power Consumption during Standby ........................................................ 16 10.4 Cross Regulation............................................................................................... 17 Thermal Performance............................................................................................... 17 11 Minimum Operating Voltage and Peak Power Margin .......................................... 17 12 Output ripple and Noise Waveforms ..................................................................... 18 13 Conducted EMI ..................................................................................................... 20 14 Revision History.................................................................................................... 21 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. 1 2 3 4 5
Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com
Page 2 of 22
DER-10
4.9W DVD power supply using TNY266P
February 4, 2004
1 Introduction
This document is an engineering report describing an 4.9W (8.5 W peak) multiple output power supply utilizing a TNY266P for a DVD player. This design is low cost and meets EMI with no common-mode choke, no X-cap, and no Y-cap. This is possible with TinySwitch-II because of its built-in frequency jitter. Cross-regulation is tight in spite of having a simple low-cost zener regulation scheme. This is possible with TinySwitch-II because of its unique feedback scheme. A low-cost non-Safety rated "DC Switch" allows shutdown with ~200 mW consumption at 230 Vac. This is possible with TinySwitch-II because of its EcoSmart features. This document contains the power supply specification, schematic, bill of materials, transformer documentation, printed circuit layout, and performance data.
Page 3 of 22
Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com
DER-10
4.9W DVD power supply using TNY266P
February 4, 2004
2 Photograph
Note the following: * Does not use common-mode choke, X-cap, nor Y-cap * Uses little board space * Does not use a heatsink * Uses small transformer: EE25L * Uses small output capacitors * Uses small output diodes * Does not use TL431
Figure 1 - Power Integrations PSU unit
Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com
Page 4 of 22
DER-10
4.9W DVD power supply using TNY266P
February 4, 2004
3 Power Supply Specification
Description Input Voltage Frequency No-load Input Power (230 VAC) Output Output Voltage 1 Output Ripple Voltage 1 Output Current 1 Output Voltage 2 Output Ripple Voltage 2 Output Current 2 Output Voltage 3 Output Ripple Voltage 3 Output Current 3 Output Voltage 4 Output Ripple Voltage 4 Output Current 4 Total Output Power Continuous Output Power Peak Output Power Efficiency Environmental Conducted EMI Ambient Temperature TAMB
Meets CISPR22B / EN55022B
Symbol VIN fLINE
Min 90 47
Typ
Max 265 64 0.3
Units VAC Hz W V mV A V mV A V mV A V mV A
Comment
2 Wire - no P.E.
50/60
VOUT1 VRIPPLE1 IOUT1 VOUT2 VRIPPLE2 IOUT2 VOUT3 VRIPPLE3 IOUT3 VOUT4 VRIPPLE4 IOUT4
3.6 1 5.0 1 12 0.2 -12 0.012 100 0.013 100 0.5 50 1.5 50 1.5
20 MHz Bandwidth
5% 20 MHz Bandwidth
20 MHz Bandwidth
zener regulated 20 MHz Bandwidth
POUT POUT_PEAK
4.9 8.5 71
W W %
Measured at full load, 25 oC
0
40
o
C
Free convection, sea level
Page 5 of 22
Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com
DER-10
4.9W DVD power supply using TNY266P
February 4, 2004
4 Schematic
Figure 2 - Schematic.
Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com
Page 6 of 22
DER-10
4.9W DVD power supply using TNY266P
February 4, 2004
5 Circuit Description
5.1 Input EMI Filtering C1, and C2 are the bulk capacitors. Together with L1, they form the EMI filter. TinySwitch-II's built-in frequency jitter helps achieve low EMI in spite of this very simple EMI filter. 5.2 Primary Clamp Snubber D5, R1, R2, and C3 form the primary clamp snubber to clamp the voltage spike at the Drain pin after turn-off. D5 is a 1N4007G, a glass-passivated version of the standard 1N4007, with controlled reverse recovery. Its use, along with R2, improves EMI and efficiency. 5.3 Output filtering C6, C8, and C12 are the main output capacitors. C7, C9, and C11, along with L3, L4, and L5, form second-stage output filters. 5.4 Output Feedback U2, VR1, and R15 form the voltage feedback network. The 5V output voltage setpoint is set by the voltage drops of U2, VR1, and R15. The TinySwitch-II unique feedback scheme, with constant feedback current over line and load changes, means that the current in the zener does not change, thus the voltage drops in U2, VR1, and R15 do not change. This yields tight regulation in spite of the circuit's simplicity and low cost. 5.5 "DC Switch" J4 is connected to a switch, wherein if it is closed, the 5V output drops to about 1.2V, because the zener ZR1 is essentially shorted out. All the output drop to about 1/5th of their normal voltages. During this condition, the load draws very little current. Because of the TinySwitch's EcoSmart operation, it draws very little input power - <200 mW. This "DC Switch", can be used in place of a normal "AC Switch" that's used to disconnect the AC power. The DC Switch is lower cost because it does not have to be Safety-rated, and is lower voltage.
Page 7 of 22
Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com
DER-10
4.9W DVD power supply using TNY266P
February 4, 2004
6 PCB Layout
Figure 3 - Printed Circuit Layout.
Note: This is a generic PCB for multiple output supplies of different output configurations. In this application, the following components are not stuffed: C15, C16, C17, C18, C20, L2, Q1, U4, R4, R5, R6, R10, R11, R13, R14. R15 is added in series with VR1 and placed on the top of PCB.
Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com
Page 8 of 22
DER-10
4.9W DVD power supply using TNY266P
February 4, 2004
7 Bill Of Materials
Item
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35
Qty
1 1 1 1 1 1 2 1 1 1 1 4 1 2 1 1 1 1 1 1 2 1 2 1 1 1 1 1 1 1 1 1 1 1 1
Reference
C1 C2 C3 C19 C12 C6 C8, C10 C9 C11 C4 C7 D1, D2, D3, D4 D5 D6, D10 D7 D8 D9 F1 L1 L3 L4, L5 R1 R2, R12 R3 R9 R15 VR1 VR2 T1 U1 U2 J4 J1 J2 PCB
Description
P/N
Manufacturer
Nippon Chemi-Con Nippon Chemi-Con Any Any Nippon Chemi-Con Nippon Chemi-Con Nippon Chemi-Con Nippon Chemi-Con Nippon Chemi-Con Nippon Chemi-Con Nippon Chemi-Con Any Vishay / Any Any Any Any Any Any Any Any Any Any Any Any Any Any Any Any Any Power Integrations Isocom / Any Any Any Any
10 F, 400 V KMG400VB10RM 22 F, 400 V KMG400VB22RM 2.2 nF, 1 kV, ceramic Z5U dielectric 0.1 F, 100 V, ceramic Z5U dielectric 82 F, 35 V KMG35VB82RM 100 F, 25 V, low esr KZE25VB101M 470 F, 10 V, low esr KZE10VB471M 330 F, 10 V, low esr KZE10VB331M 220 F, 10 V, low esr KZE10VB221M 47 F, 50 V, low esr KZE50VB47RM 47 F, 25 V, low esr KZE25VB47RM 1 A, 1000 V, Glass Passivated 1N4007GP 1 A, 1000 V, Glass Passivated 1N4007GP BAV20 UF4003, 200V IN5822 SB360 1A/275V Fuse 1.5 mH, 0.25 A Ferrite Bead 3.3 H, 1 A 200 K, 1/2 W, 5% 200 , 1/4 W, 5% 30 k, 1/4 W, 5% 680 , 1/2 W, 5% 910 , 1/4 W, 5% 4.3 V, 1/4 W, 2% BZX79-B4V3 12 V, 1/4 W, 2% BZX79-B12V EEL25 Custom TinySwitch-II TNY266P Opto-coupler PC817A DC Switch Custom AC Input Connector Custom DC Output Connector Custom
Page 9 of 22
Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com
DER-10
4.9W DVD power supply using TNY266P
February 4, 2004
8 Transformer Specification
8.1 Electrical Diagram
1 14
W2 Primary
3
5T 80T
13
W6 +12 V
W5 1T X 3 +5 V
11
NC
W3 Shield
1 7
Copper 3T X 3
12
W4 +3.3 V W7 -23 V
10
W1 Bias
6
17T 20T x 2
Figure 4 -Transformer Electrical Diagram
8.2
Electrical Specifications
1 second, 60 Hz, from Pins 1-7 to Pins 8-14 Pins 1-3, all other windings open, measured at 132 kHz, 0.4 VRMS Pins 1-3, all other windings open Pins 1-3, with Pins 8-14 shorted, measured at 132 kHz, 0.4 VRMS 3000 VAC 1909 H, 10/+10% 400 kHz (Min.) 35 H (Max.)
Electrical Strength Primary Inductance Resonant Frequency Primary Leakage Inductance
8.3
Materials
Description 2 Core: EEL25, TDK Gapped for AL of 298 nH/T Bobbin: EEL25 Vertical 14 pins Magnet Wire: #28 AWG Copper Foil 0.12 mm thick, 16 mm wide. Tape: 3M 1298 Polyester Film, 16 mm wide Tape: 3M 1298 Polyester Film, 22 mm wide Margin tape: 3M # 44 Polyester web. 3.0 mm wide
Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com
Item [1] [2] [3] [4] [5] [6] [7]
Page 10 of 22
DER-10
[8] [9] [10]
4.9W DVD power supply using TNY266P
Teflon Copper Tape 2.0 mils thick, 16 mm wide. Varnish
February 4, 2004
8.4
Transformer Build Diagram
10 - 23 V +12 V 5V 3.3V 12 13 14 11 12 11 13
1 1 3 7 6
Shield
Primary
Bias
Figure 5 - Transformer Build Diagram.
8.5
Copper Foil Preparation
TAPE
COPPER FOIL 16mm W X 45mm L x 2mils THICK
TEFLON TUBE
#28 AWG WIRE
Figure 6 - Foil Winding Preparation Diagram.
Page 11 of 22
Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com
DER-10 8.6
4.9W DVD power supply using TNY266P
February 4, 2004
Transformer Construction
Set up the bobbin with its pin1 to pin7 oriented to the left hand side. Apply 3.0 mm margin at each side of bobbin using item [7]. Match combined height of primary, shield and bias windings. Start at pin 8 temporarily. Wind 20 bifilar turns of item [3] from right to left. Wind tightly and uniformly across entire width of bobbin. Finish at pin 6 using item [8] at the finish lead. Flip the starting lead over to pin 7 using item [8] at the finish lead. Apply 1 layer of tape item [5] Start on pin 3 using item [8] at the start leads. Wind 40 turns of item [3] from left to right. Wind another 40 turns from right to left for second layer. Finish on pin 1 using item [8] at the finish lead. Apply 1 layers of tape item [5] Start on pin 1 using item [8] at the start lead. Wind 1 turns of copper shield shown in figure 5. Apply next step tape item[6] first before close this winding to avoid copper shortage. Apply 3 layer (including the tape covering the foil) of tape item [6] Apply 3.0 mm margin at each side of bobbin using item [7]. Match combines height of secondary windings. Start at pin 11 using item [8] at the start leads. Wind 3 trifilar turns of item [3]. The wires should be tightly and uniformly wound spread across the bobbin width. Finish on pin 12 using item [8] at the finish leads. Start on pin 13 using item [8] at the start leads. Wind 1 trifilar turn of item [3]. Wind the wire spread across the bobbin width. Finish on pin 11 using item [8] at the finish leads. Apply one layer of tape item [5] Start at pin 14 using item [8] at the start lead. Wind 5 turns of item [3]. Wind uniformly spread across the bobbin. Finish at pin 13 using item [8] at the finish lead. Apply one layer of tape item [5] Start at pin 12 using item [8] at the start leads Wind 17 turns of item [3]. Wind from right to left in a uniform and tightly wound spread across the bobbin width. Finish on pin 10 using item [8] at the finish lead. 3 Layers of tape [6] for insulation. Assemble and secure core halves. Item [1] Dip varnish uniformly in item [10]
Bobbin Set Up Orientation Margin Tape
W1 Bias Winding Basic Insulation W2 Two Layers Primary Winding Basic Insulation W3 Copper Shield Basic Insulation Margin Tape W4 3.3 V Winding.
W5 +5V Winding Basic Insulation W6 +12 Winding Basic Insulation W7 -23 V Winding Outer Insulation Core Assembly Final Varnish
Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com
Page 12 of 22
DER-10
4.9W DVD power supply using TNY266P
February 4, 2004
9
Transformer Spreadsheets
ACDC_TNYII_Rev1_1_032701.xls: TinySwitch-II Continuous/Discontinuous Flyback Transformer Design Spreadsheet Customer Minimum AC Input Voltage Maximum AC Input Voltage AC Mains Frequency Output Voltage Output Power Efficiency Estimate Loss Allocation Factor Bridge Rectifier Conduction Time Estimate Input Filter Capacitor
INPUT INFO OUTPUT UNIT ACDC_TNYII_Rev1_1_032701 Copyright Power Integrations Inc. 2001 ENTER APPLICATION VARIABLES VACMIN 90 Volts VACMAX 265 Volts fL 50 Hertz VO 5 Volts PO 8.55 Watts n 0.73 Z 0.5 tC 3 mSecon ds CIN 20 uFarads ENTER TinySwitch-II VARIABLES TNY-II Chosen Device ILIMITMIN ILIMITMAX fS fSmin fSmax VOR VDS VD KP 110 7.9 0.5 0.60
TNY26 6 TNY2 66 Power Out 0.325 0.375 132000 120000 144000
Universal 115 Doubled/230V 9.5W Amps Amps Hertz Hertz Hertz Volts Volts Volts 15W TINYSwitch Minimum Current Limit TINYSwitch Maximum Current Limit TINYSwitch Switching Frequency TINYSwitch Minimum Switching Frequency (inc. jitter) TINYSwitch Maximum Switching Frequency (inc. jitter) Reflected Output Voltage TINYSwitch on-state Drain to Source Voltage Output Winding Diode Forward Voltage Drop !!!! INCREASE KP > 0.6 (Increase VOR, Larger input capacitor, Larger TinySwitch
Core Type Core Bobbin AE LE AL BW M L NS DC INPUT VOLTAGE PARAMETERS
ENTER TRANSFORMER CORE/CONSTRUCTION VARIABLES eel25 EEL25 P/N: PC40EE25.4/32/6.4-Z EEL25_BOBBIN P/N: * 0.404 cm^2 Core Effective Cross Sectional Area 7.34 cm Core Effective Path Length 1420 nH/T^2 Ungapped Core Effective Inductance 22.3 mm Bobbin Physical Winding Width 3 mm Safety Margin Width (Half the Primary to Secondary Creepage Distance) 1 Number of Primary Layers 4 Number of Secondary Turns
Page 13 of 22
Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com
DER-10
VMIN VMAX
4.9W DVD power supply using TNY266P
89 375 Volts Volts
February 4, 2004
Minimum DC Input Voltage Maximum DC Input Voltage
CURRENT WAVEFORM SHAPE PARAMETERS DMAX 0.57 IAVG 0.13 IP 0.33 IR 0.19 IRMS 0.18 TRANSFORMER PRIMARY DESIGN PARAMETERS LP 1909 NP 80 ALG 298 2215 BM BAC 573 ur LG BWE OD INS DIA AWG CM CMA 2053 0.13 16.3 0.20 0.04 0.16 35 32 180
Amps Amps Amps Amps
Maximum Duty Cycle Average Primary Current Minimum Peak Primary Current Primary Ripple Current Primary RMS Current
uHenries Primary Inductance Primary Winding Number of Turns nH/T^2 Gapped Core Effective Inductance Gauss Flux Density, IP (BP<3000) Gauss AC Flux Density for Core Loss Curves (0.5 X Peak to Peak) Relative Permeability of Ungapped Core mm Gap Length (Lg > 0.1 mm) mm Effective Bobbin Width mm Maximum Primary Wire Diameter including insulation mm Estimated Total Insulation Thickness (= 2 * film thickness) mm Bare conductor diameter AWG Primary Wire Gauge (Rounded to next smaller standard AWG value) Cmils Bare conductor effective area in circular mils Cmils/A !!!!!!!!!! INCREASE CMA>200 (increase mp L(primary layers),decrease NS,larger Core)
TRANSFORMER SECONDARY DESIGN PARAMETERS (SINGLE OUTPUT / SINGLE OUTPUT EQUIVALENT) Lumped parameters ISP 6.50 Amps Peak Secondary Current ISRMS 3.06 Amps Secondary RMS Current IO 1.71 Amps Power Supply Output Current IRIPPLE 2.54 Amps Output Capacitor RMS Ripple Current CMS 613 Cmils Secondary Bare Conductor minimum circular mils AWGS 22 AWG Secondary Wire Gauge (Rounded up to next larger standard AWG value) DIAS 0.65 mm Secondary Minimum Bare Conductor Diameter ODS 4.08 mm Secondary Maximum Outside Diameter for Triple Insulated Wire INSS 1.71 mm Maximum Secondary Insulation Wall Thickness VOLTAGE STRESS PARAMETERS VDRAIN PIVS
626 24
Volts Volts
Maximum Drain Voltage Estimate (Includes Effect of Leakage Inductance) Output Rectifier Maximum Peak Inverse Voltage
Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com
Page 14 of 22
DER-10
4.9W DVD power supply using TNY266P
February 4, 2004
TRANSFORMER SECONDARY DESIGN PARAMETERS (MULTIPLE OUTPUTS) 1st output VO1 IO1 PO1 VD1 NS1 ISRMS1 IRIPPLE1 PIVS1 CMS1 AWGS1 DIAS1 ODS1 3.6 0.600 2.16 0.5 2.98 1.075 0.89 18 215 26 0.41 5.47 Volts Amps Watts Volts Amps Amps Volts Output Voltage Output DC Current Output Power Output Diode Forward Voltage Drop Output Winding Number of Turns Output Winding RMS Current Output Capacitor RMS Ripple Current Output Rectifier Maximum Peak Inverse Voltage
Cmils Output Winding Bare Conductor minimum circular mils AWG Wire Gauge (Rounded up to next larger standard AWG value) mm Minimum Bare Conductor Diameter mm Maximum Outside Diameter for Triple Insulated Wire
2nd output VO2 IO2 PO2 VD2 NS2 ISRMS2 IRIPPLE2 PIVS2 CMS2 AWGS2 DIAS2 ODS2
12.0 0.100 1.20 0.7 9.24 0.179 0.15 55 36 34 0.16 1.76
Volts Amps Watts Volts Amps Amps Volts
Output Voltage Output DC Current Output Power Output Diode Forward Voltage Drop Output Winding Number of Turns Output Winding RMS Current Output Capacitor RMS Ripple Current Output Rectifier Maximum Peak Inverse Voltage
Cmils Output Winding Bare Conductor minimum circular mils AWG Wire Gauge (Rounded up to next larger standard AWG value) mm Minimum Bare Conductor Diameter mm Maximum Outside Diameter for Triple Insulated Wire
3rd output VO3 IO3 PO3 VD3 NS3 ISRMS3 IRIPPLE3 PIVS3 CMS3 AWGS3 DIAS3 ODS3
23.0 0.100 2.30 0.7 17.24 0.179 0.15 104 36 34 0.16 0.95
Volts Amps Watts Volts Amps Amps Volts
Output Voltage Output DC Current Output Power Output Diode Forward Voltage Drop Output Winding Number of Turns Output Winding RMS Current Output Capacitor RMS Ripple Current Output Rectifier Maximum Peak Inverse Voltage
Cmils Output Winding Bare Conductor minimum circular mils AWG Wire Gauge (Rounded up to next larger standard AWG value) mm Minimum Bare Conductor Diameter mm Maximum Outside Diameter for Triple Insulated Wire
Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com
Page 15 of 22
DER-10
4.9W DVD power supply using TNY266P
February 4, 2004
10 Performance Data
All measurements performed at room temperature, 60 Hz input frequency. 10.1 Standby Input Power during DC switch off operation Note that less than 200mW "DC Switch" power consumption is possible with TinySwitchII because of its EcoSmart features.
Standby Consumption
200 Input Power (mW) 160 120 80 40 0 85 115 145 175 205 235 265 Input Voltage (VAC)
Figure 7- Standby Input Power vs. Input Line Voltage
10.2 Full-load Efficiency Efficiency at 115 Vac, with continuous load drawn by DVD player during playback. PI unit: 71%
10.3 Input Power Consumption during Standby "Standby" is achieved by turning off the unit using the remote control, with no DVD in the tray. PI unit: 4.8W
Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com
Page 16 of 22
DER-10
4.9W DVD power supply using TNY266P
February 4, 2004
10.4 Cross Regulation Minimum and Maximum output voltages were recorded for each output, while cycling the unit on/off, start/stop, pause/run, chapter jump, and fast forward/rewind. The test was done at room temperature, 90 Vac, 115 VAC 132 Vac, 180 Vac, 230 Vac, 265 Vac input. Note the tight regulation of the PI 3.6V output in spite of the low-cost, simple Zener regulation. This is possible with TinySwitch-II because of its unique feedback scheme. Output 3.6 V 5V +12 V -12 V Minimum 3.644 4.96 11.68 -12.48 Maximum 3.848 5.04 12.56 -12.40 Tolerance +6.89 / +1.22% +0.80 / -0.80% +4.67 / -2.67% +4.00 / -3.33%
Thermal Performance Note: The Power Supply was installed in the DVD player enclosure. The DVD player was playing a DVD. Temperature rise is less than 25 C
Temperature (C) Item Ambient (Deg.C) Transformer (T1) TNY266 (U1) Rectifier (D8) 90 VAC 25 35 48 38 265VAC 25 38 53 51
11 Minimum Operating Voltage and Peak Power Margin
The unit is capable of starting and running as low as 60 Vac in spite of the small total input capacitance of 32uf. This indicates plenty of margin for the DVD player's peak power requirements, as flyback power supplies deliver less maximum power when the AC input voltage is low.
Page 17 of 22
Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com
DER-10
4.9W DVD power supply using TNY266P
February 4, 2004
12 Output ripple and Noise Waveforms
The ripple and noise were measured during normal DVD operation and switches between different functions at room temperature, 90 VAC input. Note the low output ripple and noise in spite of small output capacitors. The TinySwitch-II shows fast transient response because of its unique feedback scheme.
Figure 8 - 3.6V, 1s, 50 mV/div
Figure 9 - 5V, 1s, 50 mV/div
Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com
Page 18 of 22
DER-10
4.9W DVD power supply using TNY266P
February 4, 2004
Figure 10 - 12V, 1s, 500 mV/div
Figure 11 - -12V, 1s, 50 mV/div
Page 19 of 22
Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com
DER-10
4.9W DVD power supply using TNY266P
February 4, 2004
13 Conducted EMI
EMI was tested at room temperature, during normal operation, playing a DVD. Note the lower EMI, especially with output grounded, in spite of having no common mode choke, no Y-cap and no X-cap. The excellent EMI is possible with TinySwitch-II because of its built-in frequency jitter. Note that in normal use, the DVD player is connected to the TV, and the TV chassis is grounded through the antenna wire or cable. Therefore the EMI setup that is representative of the actual application is with the output grounded back to the LISN ground plug.
Figure 12 - 230V, Line (worst case), floating output.
Figure 13 - 230V, Line (worst case), output grounded.
Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com
Page 20 of 22
DER-10
4.9W DVD power supply using TNY266P
February 4, 2004
14 Revision History
Date February 4, 2004 Author DZ/JC Revision 1.0 Description & changes First Release Reviewed AM/VC
Page 21 of 22
Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com
DER-10
4.9W DVD power supply using TNY266P
February 4, 2004
For the latest updates, visit our Web site: www.powerint.com Power Integrations reserves the right to make changes to its products at any time to improve reliability or manufacturability. Power Integrations does not assume any liability arising from the use of any device or circuit described herein, nor does it convey any license under its patent rights or the rights of others. The products and applications illustrated herein (including circuits external to the products and transformer construction) may be covered by one or more U.S. and foreign patents or potentially by pending U.S. and foreign patent applications assigned to Power Integrations. A complete list of Power Integrations' patents may be found at www.powerint.com. The PI Logo, TOPSwitch, TinySwitch, LinkSwitch, and EcoSmart are registered trademarks of Power Integrations, Inc. PI Expert and DPA-Switch are trademarks of Power Integrations, Inc. (c) Copyright 2003, Power Integrations, Inc.
WORLD HEADQUARTERS NORTH AMERICA - WEST Power Integrations 5245 Hellyer Avenue San Jose, CA 95138 USA. Main: +1-408-414-9200 Customer Service: Phone: +1-408-414-9665 Fax: +1-408-414-9765 e-mail: usasales@powerint.com CHINA Power Integrations International Holdings, Inc. Rm# 1705, Bao Hua Bldg. 1016 Hua Qiang Bei Lu Shenzhen Guangdong, 518031 Phone: +86-755-8367-5143 Fax: +86-755-8377-9610 e-mail: chinasales@powerint.com APPLICATIONS HOTLINE World Wide +1-408-414-9660
EUROPE & AFRICA Power Integrations (Europe) Ltd. Centennial Court Easthampstead Road Bracknell Berkshire RG12 1YQ, United Kingdom Phone: +44-1344-462-300 Fax: +44-1344-311-732 e-mail: eurosales@powerint.com KOREA Power Integrations International Holdings, Inc. Rm# 402, Handuk Building, 649-4 Yeoksam-Dong, Kangnam-Gu, Seoul, Korea Phone: +82-2-568-7520 Fax: +82-2-568-7474 e-mail: koreasales@powerint.com
SINGAPORE Power Integrations, Singapore 51 Goldhill Plaza #16-05 Republic of Singapore, 308900 Phone: +65-6358-2160 Fax: +65-6358-2015 e-mail: singaporesales@powerint.com JAPAN Power Integrations, K.K. Keihin-Tatemono 1st Bldg. 12-20 Shin-Yokohama 2-Chome, Kohoku-ku, Yokohama-shi, Kanagawa 222-0033, Japan Phone: +81-45-471-1021 Fax: +81-45-471-3717 e-mail: japansales@powerint.com
TAIWAN Power Integrations International Holdings, Inc. 17F-3, No. 510 Chung Hsiao E. Rd., Sec. 5, Taipei, Taiwan 110, R.O.C. Phone: +886-2-2727-1221 Fax: +886-2-2727-1223 e-mail: taiwansales@powerint.com INDIA (Technical Support) Innovatech #1, 8th Main Road Vasanthnagar Bangalore, India 560052 Phone: +91-80-226-6023 Fax: +91-80-228-9727 e-mail: indiasales@powerint.com
APPLICATIONS FAX World Wide +1-408-414-9760
Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com
Page 22 of 22

▲Up To Search▲

Price & Availability of TNY266P1

	To Download TNY266P1 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .