User guide

ManualsBrandsNXP ManualsVoltage RegulatorsTEA1703T

UM10437

GreenChip 65 W TEA1738LT/T and TEA1703 demo board

Rev. 1 — 28 February 2011 User manual

Document information

Info Content

Keywords Notebook adapter, TEA1738LT/T, TEA1703, fixed frequency, ultra-low

standby power, high-efficiency, slim line

Abstract This manual provides the specification, schematics and PCB layout of the

65 W TEA1738LT/T and TEA1703 demo board. For details on the

TEA1738LT/T or TEA1703 IC please refer to the application note.

Summary of content (27 pages)

PAGE 1
UM10437 GreenChip 65 W TEA1738LT/T and TEA1703 demo board Rev. 1 — 28 February 2011 User manual Document information Info Content Keywords Notebook adapter, TEA1738LT/T, TEA1703, fixed frequency, ultra-low standby power, high-efficiency, slim line Abstract This manual provides the specification, schematics and PCB layout of the 65 W TEA1738LT/T and TEA1703 demo board. For details on the TEA1738LT/T or TEA1703 IC please refer to the application note.
PAGE 2
UM10437 NXP Semiconductors GreenChip 65 W TEA1738LT/T and TEA1703 demo board Revision history Rev Date Description v.1 20110228 first issue Contact information For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com UM10437 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 28 February 2011 © NXP B.V. 2011. All rights reserved.
PAGE 3
UM10437 NXP Semiconductors GreenChip 65 W TEA1738LT/T and TEA1703 demo board 1. Introduction WARNING Lethal voltage and fire ignition hazard The non-insulated high voltages that are present when operating this product, constitute a risk of electric shock, personal injury, death and/or ignition of fire. This product is intended for evaluation purposes only.
PAGE 4
UM10437 NXP Semiconductors GreenChip 65 W TEA1738LT/T and TEA1703 demo board • • • • • Low-cost implementation Indicator LED Ultra low no-load standby power (< 50 mW at 230 V, 50 Hz) ENERGY STAR compliant EMI CISPR22 compliant 2. Power supply specification Table 1. Input specification Symbol Description Conditions Specification Unit Vi input voltage - 90 to 264 V fi input frequency - 47 to 60 Hz Pi(no_load) input power (no-load) at 230 V; 50 Hz < 50 mW Table 2.
PAGE 5
UM10437 NXP Semiconductors GreenChip 65 W TEA1738LT/T and TEA1703 demo board Efficiency results[1][2] Table 3. Condition ENERGY Efficiency (%) STAR 2.0 Average 100 % 75 % efficiency load load requirement (%) 50 % load 100 % 1 W load 0.5 W 0.25 W 115 V, 60 Hz > 87 90.3 88.8 90.5 90.4 90.5 76.8 69.1 57.8 230 V, 50 Hz > 87 91.6 91.6 92.1 91.7 90.9 74.8 66.4 54.
PAGE 6
UM10437 NXP Semiconductors GreenChip 65 W TEA1738LT/T and TEA1703 demo board 3.4 Output regulation The output voltage as a function of load current was measured using a 4-wire current sense configuration directly at the PCB connector. Measurements were performed without probes attached to the application for 115 V; 60 Hz and 230 V; 50 Hz. 019aab617 20.0 Vo (V) 19.8 (1) (2) 19.6 19.4 19.2 19.0 0 1 2 3 4 Io (A) 5 (1) Vo = 115 V (AC); 60 Hz. (2) Vo = 230 V (AC); 50 Hz. Fig 3.
PAGE 7
UM10437 NXP Semiconductors GreenChip 65 W TEA1738LT/T and TEA1703 demo board 3.6 Output voltage regulation in Standby mode The output voltage regulation during no-load operation was measured for 90 V; 60 Hz and 264 V; 50 Hz. 019aab619 Chan1 (yellow): VCC; Chan2 (green): Gate pulse; Chan3 (magenta): VO Fig 5. Output voltage regulation at no-load 90 V; 60 Hz 019aab620 Chan1 (yellow): VCC; Chan2 (green): Gate pulse; Chan3 (magenta): VO Fig 6.
PAGE 8
UM10437 NXP Semiconductors GreenChip 65 W TEA1738LT/T and TEA1703 demo board 3.7 OverPower Protection (OPP) Nominal and peak output power was measured directly at the output connector for various mains input voltages. Peak output power was measured after removing C18 and replacing R16 for 180 k. 019aab621 150 Po (W) (2) 130 110 (1) 90 70 50 90 130 170 210 250 290 mains (Vac) (1) Nominal power (W). (2) Peak power (W). Fig 7. Nominal and peak output power as function of mains voltage 3.
PAGE 9
UM10437 NXP Semiconductors GreenChip 65 W TEA1738LT/T and TEA1703 demo board Table 8. Maximum output voltage in case of OVP Condition 115 V (AC) 230 V (AC) No-load 25.6 25.6 Full load (3.34 A) 25 25.2 019aab622 Chan1 (yellow): VO; Chan2 (green): Gate pulse; Chan3 (magenta): Ctrl voltage. Fig 8. 230 V; 50 Hz; full load maximum output voltage when OVP is triggered 019aab623 Chan1 (yellow): VO; Chan2 (green): Gate pulse; Chan3 (magenta): Ctrl voltage. Fig 9.
PAGE 10
UM10437 NXP Semiconductors GreenChip 65 W TEA1738LT/T and TEA1703 demo board 3.11 Start-up time Start-up time was measured for three mains input voltages and full load (3.34 A) condition. Vi input measured using a current probe (to avoid adding additional capacitance to the mains input). Vo was measured using a voltage probe grounded at the secondary side. Table 9. Start-up time Condition Start-up time (s) 90 V; 60 Hz 3.2 115 V; 60 Hz 2.0 230 V; 50 Hz 0.
PAGE 11
UM10437 NXP Semiconductors GreenChip 65 W TEA1738LT/T and TEA1703 demo board 019aab625 Chan1 (yellow): VO; Chan2 (green): Gate pulse; Chan3 (magenta): Ctrl voltage. Fig 11. 264 V; 50 Hz; full load; start up profile Remark: The small discontinuity in the output voltage ramp at 264 V; 50 Hz is caused by the slow start function not limiting the primary current because it is hidden by the leading edge blanking period of 300 ns. 3.
PAGE 12
UM10437 NXP Semiconductors GreenChip 65 W TEA1738LT/T and TEA1703 demo board 019aab626 Chan1 (yellow): Vo; Chan3 (magenta): Bulk cap voltage. Fig 12. full load; hold–up time at 115 V; 60 Hz 3.14 Dynamic loading The output voltage was measured at the end of the cable. Both channels of the oscilloscope are set to DC mode. Table 10.
PAGE 13
UM10437 NXP Semiconductors GreenChip 65 W TEA1738LT/T and TEA1703 demo board 019aab627 Chan1 (yellow): Vo; Chan4 (cyan): Io. Fig 13. Dynamic loading 90 V; 47 Hz 019aab628 Chan1 (yellow): Vo; Chan4 (cyan): Io. Fig 14. Dynamic loading 264 V; 63 Hz UM10437 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 28 February 2011 © NXP B.V. 2011. All rights reserved.
PAGE 14
UM10437 NXP Semiconductors GreenChip 65 W TEA1738LT/T and TEA1703 demo board 3.15 Output ripple and noise Output ripple and noise were measured at the end of the cable using the measurement set-up described in Figure 15. An oscilloscope probe connected to the end of the adapter cable using a probe tip. 100 nF and 1 F capacitors were added between plus and minus to reduce the high frequency noise. Output ripple and noise were measured for mains voltages 90 V; 47 Hz and 264 V; 63 Hz, both at full load (3.
PAGE 15
UM10437 NXP Semiconductors GreenChip 65 W TEA1738LT/T and TEA1703 demo board 019aab630 Chan1 (yellow): Vo; Chan2 (green): Gate pulse Fig 17. Output ripple and noise at 264 V; 63 Hz 3.16 EMI performance Conditions: • • • • • • Type: conducted EMC measurement Frequency range: 150 kHz to 30 MHz Output power: full load condition Supply voltage: 110 V and 230 V (AC) Margin: 6 dB below limit Measurements performed by Cerpass technology corp.
PAGE 16
UM10437 NXP Semiconductors GreenChip 65 W TEA1738LT/T and TEA1703 demo board 019aab631 Fig 18. 115 V, 65 W TEA1738LT/T and TEA1703 demo board phase N 019aab632 Fig 19. 115 V, 65 W TEA1738LT/T and TEA1703 demo board phase L 019aab633 Fig 20. 230 V, 65 W TEA1738LT/T and TEA1703 demo board phase N UM10437 User manual 019aab634 Fig 21. 230 V, 65 W TEA1738LT/T and TEA1703 demo board phase L All information provided in this document is subject to legal disclaimers. Rev. 1 — 28 February 2011 © NXP B.
PAGE 17
xxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx x xxxxxxxxxxxxxx xxxxxxxxxx xxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxx xx xxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxx xxxxxxx xxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxx xxxxxxxxxxxxxx xxxxxx xx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxx xxxxx x x T1 1 R9 51 kΩ C3 F2 C1 0.
PAGE 18
UM10437 NXP Semiconductors GreenChip 65 W TEA1738LT/T and TEA1703 demo board 5. Bill of materials 5.1 Components list Table 12.
PAGE 19
UM10437 NXP Semiconductors GreenChip 65 W TEA1738LT/T and TEA1703 demo board Table 12. Bill of materials …continued Reference Value Description Package C3 2200 pF; 630 V MLCC; Z5U SMD 1206 C4 3300 pF; 1 kV MLCC; Z5U SMD 1206 C6 0.22 F; 50 V 10 %; MLCC; X7R; lead free SMD 0603 C7 0.1 F; 50 V 10 %; MLCC; X7R SMD 0603 C8 0.22 F; 50 V 10 %; MLCC; X7R; lead free SMD 0603 C9 1 nF; 50 V 10 %; MLCC; X7R SMD 0603 C10 22 nF; 50 V 5 %; MLCC; X7R SMD 0603 C11 3.
PAGE 20
UM10437 NXP Semiconductors GreenChip 65 W TEA1738LT/T and TEA1703 demo board Table 12. Bill of materials …continued Reference Value Description Package ZD3 - not mounted - Q1 15 A; 600 V; 0.5  MOSFET; n-channel; 2SK3569/Toshiba; RDSon = 0.5 ; VGS(on) = 3 V; ID = 15 A; Ciss = 1600 pF; VDS = 600 V; VGS = 30 V SMT TO220 Q2 PMBT4401 NPN transistor 80 hFE; VCEO = 40 V; IC = 600 mA SMT TO220 Q3 15 A; 600 V; 0.5  MOSFET; n-channel; 2SK3569/Toshiba; RDSon = 5.
PAGE 21
UM10437 NXP Semiconductors GreenChip 65 W TEA1738LT/T and TEA1703 demo board 6. Transformer specification 6.1 Transformer schematic diagram 2 N3 FLYA A N1, N6, N9 N8 FLYB 1 5 N4 3 N2, N5, N7 PRIMARY winding start SECONDARY teflon tube copper foil 019aab248 Fig 23. Transformer winding diagram Table 13. UM10437 User manual Winding construction Number Layers Turns Wires Copper/diameter Type 9 secondary 6 2 0.32 triso 8c primary 6 1 0.35 enamelled 8b primary 6 1 0.
PAGE 22
UM10437 NXP Semiconductors GreenChip 65 W TEA1738LT/T and TEA1703 demo board 6.2 Winding specification Table 14. Winding table Winding order Pin Start Finish 1 N1 FA 2 S1 3 N3 Wire Turns Layers Turn/ Insulation after Layer winding FB 0.32 mm   2 mm[1] 6 1 6 tape 1 Ts[3] - 3[6] 0.025 mm  7 mm[2] 1 1 1 tape 1 Ts[3] 2 A 0.35 mm   2 mm 18 3 6/3 tape 1 Ts[3] 0.15 mm   2 mm 6 1 6 tape 1 Ts[3][5] 4 N4 5 3[6] 5 S2 - 3 0.
PAGE 23
UM10437 NXP Semiconductors GreenChip 65 W TEA1738LT/T and TEA1703 demo board 7. Layout of the 65 W TEA1738LT/T and TEA1703 reference board 019aab245 Fig 24. Copper layout bottom side (top view) 019aab247 Fig 25. Copper layout top side (top view) UM10437 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 28 February 2011 © NXP B.V. 2011. All rights reserved.
PAGE 24
UM10437 NXP Semiconductors GreenChip 65 W TEA1738LT/T and TEA1703 demo board 019aab244 Fig 26. Component placement bottom side (bottom view) 019aab246 Fig 27. Component placement top side (top view) UM10437 User manual All information provided in this document is subject to legal disclaimers. Rev. 1 — 28 February 2011 © NXP B.V. 2011. All rights reserved.
PAGE 25
UM10437 NXP Semiconductors GreenChip 65 W TEA1738LT/T and TEA1703 demo board 8. Alternative circuit options 8.1 Changing the output voltage By changing the following components, the output voltage can be changed (30 %). Refer to the TEA1738(L)T application note for additional information on this topic. Make sure that the Aux voltage remains within its operation limits (12.2 V  30 V typical) and is high enough to start up (20.6 V typical).
PAGE 26
UM10437 NXP Semiconductors GreenChip 65 W TEA1738LT/T and TEA1703 demo board 9. Legal information 9.1 Definitions Draft — The document is a draft version only. The content is still under internal review and subject to formal approval, which may result in modifications or additions. NXP Semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information. 9.
PAGE 27
UM10437 NXP Semiconductors GreenChip 65 W TEA1738LT/T and TEA1703 demo board 10. Contents 1 1.1 2 3 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 4 5 5.1 6 6.1 6.2 6.3 6.4 6.5 7 8 8.1 8.2 9 9.1 9.2 9.3 10 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Power supply specification. . . . . . . . . . . . . . . . 4 Performance data. . . . . . . . . . . . . . . . . . . . . . . .