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PDF UM10444 Data sheet ( Hoja de datos )
| Número de pieza | UM10444 | |
| Descripción | 90 W notebook adapter | |
| Fabricantes | NXP Semiconductors | |
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UM10444
90 W notebook adapter with TEA1753, TEA1703 and TEA1791
Rev. 1 — 4 April 2011
User manual
Document information
Info Content
Keywords
GreenChip III, TEA1753, GreenChip control IC, TEA1703, GreenChip SR,
TEA1791, PFC, flyback, synchronous rectification, high efficiency,
Power-down functionality for very low standby power, adapter, notebook,
PC power
Abstract
This manual provides the specification, performance, schematics, bill of
materials and PCB layout of a 90 W notebook adapter using the TEA1753,
TEA1703 and TEA1791. Please refer to the relevant application notes for
design details on the TEA1753, TEA1703 and TEA1791.
Free Datasheet http://www.Datasheet4U.com
1 page  
NXP Semiconductors
UM10444
90 W notebook adapter with TEA1753, TEA1703 and TEA1791
3. Performance data
3.1 Test setup
3.1.1 Test equipment
• AC source: Agilent 6812B
• Power meter: Yokogawa WT210 with Harmonics option
• DC electronic load: Chroma, Model 63103
• Digital oscilloscope: Yokogawa DL1640L
• Current probe Yokogawa 701933 30 A; 50 MHz
• 100 MHz, high voltage differential probe: Yokogawa 700924
• 500 MHz, low voltage differential probe: Yokogawa 701920
• Multimeter: Keithley 2000
• EMC receiver: Rohde & Schwarz ESPI-3 + LISN ENV216
3.1.2 Test conditions
• Adapter on the lab-table with the heat sinks downwards
• The adapter has no casing
• Ambient temperature between 20 °C and 25 °C
• Measurements were made after stabilization of temperature according to "test method
for calculating the efficiency of single-voltage external AC-DC and AC-AC power
supplies" of ENERGY STAR
3.2 Efficiency
3.2.1 ENERGY STAR efficiency
To market adapters as ENERGY STAR efficient they have to pass the active mode and
no-load criteria as stated in the ENERGY STAR standard for External Power Supplies;
EPS2.0. The minimum active-mode efficiency is defined as the arithmetic average
efficiency at 25 %, 50 %, 75 % and 100 % of the rated output power as printed on the
nameplate of the adapter.
3.2.1.1 Active mode efficiency
Test Conditions:
The adapter is set to maximum load and well pre-heated until temperature stabilization is
achieved. Temperature stabilization is established for every load step before recording
any measurements.
Remark: The output voltage is measured at the end of the output cable (2 × 20 mΩ).
UM10444
User manual
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 4 April 2011
© NXP B.V. 2011. All rights reserved.
5 of 33
Free Datasheet http://www.Datasheet4U.com
5 Page 
NXP Semiconductors
UM10444
90 W notebook adapter with TEA1753, TEA1703 and TEA1791
019aaa017
a. Output short-circuit during normal operation
Load before short circuit= 4.62 A
CH1 (brown): drain flyback MOSFET
CH2 (green): FBCTRL pin TEA1753
CH3 (magenta): VCC pin TEA1753
CH4 (cyan): output voltage
Fig 6. Output short-circuit at 90 V; 60 Hz
019aaa018
b. Output short-circuit applied before start-up
Load = short circuit
CH1 (brown): drain flyback MOSFET
CH2 (green): FBCTRL pin TEA1753
CH3 (magenta): VCC pin TEA1753
CH4 (cyan): output voltage
019aaa019
a. Output short-circuit during normal operation
Load before short circuit = 4.62 A
CH1 (brown): drain flyback MOSFET
CH2 (green): FBCTRL pin TEA1753
CH3 (magenta): VCC pin TEA1753
CH4 (cyan): output voltage
Fig 7. Output short-circuit at 264 V; 50 Hz
019aaa020
b. Output short-circuit applied before start-up
Load = short circuit
CH1 (brown): drain flyback MOSFET
CH2 (green): FBCTRL pin TEA1753
CH3 (magenta: VCC pin TEA1753
CH4 (cyan): output voltage
UM10444
User manual
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 4 April 2011
© NXP B.V. 2011. All rights reserved.
11 of 33
Free Datasheet http://www.Datasheet4U.com
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet UM10444.PDF ] | |
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