Motor de Búsqueda de Datasheet de Componentes Electrónicos
  Spanish  ▼
ALLDATASHEET.ES

X  

TEA1755LT Datasheet(PDF) 10 Page - NXP Semiconductors

No. de pieza TEA1755LT
Descripción Electrónicos  HV start-up DCM/QR flyback controller with integrated DCM/QR PFC controller
Download  35 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrónico  PHILIPS [NXP Semiconductors]
Página de inicio  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

TEA1755LT Datasheet(HTML) 10 Page - NXP Semiconductors

Back Button TEA1755LT Datasheet HTML 6Page - NXP Semiconductors TEA1755LT Datasheet HTML 7Page - NXP Semiconductors TEA1755LT Datasheet HTML 8Page - NXP Semiconductors TEA1755LT Datasheet HTML 9Page - NXP Semiconductors TEA1755LT Datasheet HTML 10Page - NXP Semiconductors TEA1755LT Datasheet HTML 11Page - NXP Semiconductors TEA1755LT Datasheet HTML 12Page - NXP Semiconductors TEA1755LT Datasheet HTML 13Page - NXP Semiconductors TEA1755LT Datasheet HTML 14Page - NXP Semiconductors Next Button
Zoom Inzoom in Zoom Outzoom out
 10 / 35 page
background image
TEA1755LT
All information provided in this document is subject to legal disclaimers.
© NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet
Rev. 1.1 — 13 March 2015
10 of 35
NXP Semiconductors
TEA1755LT
HV start-up DCM/QR flyback controller with integrated DCM/QR PFC
controller
(1)
The voltage is limited to Vstart(soft)PFC.
The start level and time constant of the increasing primary current level is externally
adjusted by changing the RSS1 and CSS1 values.
(2)
The charging current Istart(soft)PFC flows while the PFCSENSE pin voltage is < 0.5 V. If
VPFCSENSE exceeds 0.5 V, the soft-start current source starts limiting current Istart(soft)PFC.
When the PFC starts switching, the Istart(soft)PFC current source is switched off; see
Figure 5.
7.2.6 PFC switch on/switch off control
When the flyback converter output power (see Section 7.3) is low, the flyback converter
switches to FR mode. When the switching frequency of the flyback in
FR mode < fsw(fb)swoff(PFC) (53 kHz), the PFC circuit is switched off to maintain high
efficiency. Connect a capacitor to the PFCTIMER pin (see Section 7.2.7) to delay the PFC
switching off.
During low-power mode operation, the PFCCOMP pin is clamped to a minimum voltage of
3.32 V or 1.92 V and a maximum voltage of 3.75 V. The lower clamp voltage depends on
VVINSENSE. This voltage limits the maximum power that is delivered when the PFC is
switched on again. The upper clamp voltage ensures that the PFC returns from low-power
mode to its normal regulation point in a limited time.
In FR mode, when the flyback converter switching frequency exceeds
fsw(fb)swon(PFC) (73 kHz), the PFC circuit is switched on. If the flyback converter duty cycle
is > 50 % or VFBCTRL is > 3.75 V, the PFC circuit is also switched on.
7.2.7 PFC switch off delay (PFCTIMER pin)
When the flyback converter switching frequency in FR mode is < fsw(fb)swoff(PFC) (53 kHz),
the IC then outputs a 4.7
A current to the PFCTIMER pin. When V
PFCTIMER reaches 3 V,
the PFC is switched off by performing a soft-stop.
Fig 5.
Soft-start of the PFC
V
PFCSENSE
I
start soft
PFC
R
SS1
=
soft s
– tart
3
R
SS1
C
SS1
=


Número de pieza similar - TEA1755LT

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
NXP Semiconductors
TEA1755 NXP-TEA1755 Datasheet
970Kb / 56P
   GreenChip TEA1755 integrated PFC and flyback controller
Rev. 2 - 13 September 2017
TEA1755T PHILIPS-TEA1755T Datasheet
949Kb / 35P
   HV start-up DCM/QR flyback controller with integrated DCM/QR PFC controller
Rev. 1-25 October 2012
TEA1755T NXP-TEA1755T Datasheet
331Kb / 35P
   HV start-up DCM/QR flyback controller with integrated DCM/QR PFC controller
Rev. 1.1-13 March 2015
TEA1755T/1 NXP-TEA1755T/1 Datasheet
331Kb / 35P
   HV start-up DCM/QR flyback controller with integrated DCM/QR PFC controller
Rev. 1.1-13 March 2015
TEA1755T NXP-TEA1755T_V01 Datasheet
331Kb / 35P
   HV start-up DCM/QR flyback controller with integrated DCM/QR PFC controller
Rev. 1.1-13 March 2015
More results

Descripción similar - TEA1755LT

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
NXP Semiconductors
TEA1755T PHILIPS-TEA1755T Datasheet
949Kb / 35P
   HV start-up DCM/QR flyback controller with integrated DCM/QR PFC controller
Rev. 1-25 October 2012
TEA1751LT_1301 NXP-TEA1751LT_1301 Datasheet
277Kb / 31P
   HV start-up DCM/QR flyback controller with integrated DCM/QR PFC controller
Rev. 3-9 January 2013
TEA1755T NXP-TEA1755T_V01 Datasheet
331Kb / 35P
   HV start-up DCM/QR flyback controller with integrated DCM/QR PFC controller
Rev. 1.1-13 March 2015
TEA1753T PHILIPS-TEA1753T Datasheet
346Kb / 32P
   HV start-up DCM/QR flyback controller with integrated DCM/QR PFC controller
Rev. 3-24 August 2012
TEA1751T NXP-TEA1751T_V01 Datasheet
273Kb / 31P
   HV start-up DCM/QR flyback controller with integrated DCM/QR PFC controller
Rev. 3-10 January 2013
TEA1753LT PHILIPS-TEA1753LT Datasheet
349Kb / 32P
   HV start-up DCM/QR flyback controller with integrated DCM/QR PFC controller
Rev. 3-24 August 2012
TEA1752LT NXP-TEA1752LT Datasheet
297Kb / 33P
   HV start-up DCM/QR flyback controller with integrated DCM/QR PFC controller
Rev. 2-15 November 2012
TEA2017ABT NXP-TEA2017ABT Datasheet
597Kb / 62P
   Digital configurable LLC and DCM/QR PFC controller
Rev.1-24 February 2022
TEA2017ABT NXP-TEA2017ABT_V01 Datasheet
614Kb / 67P
   Digital configurable LLC and DCM/QR PFC controller
Rev. 1.1 - 17 May 2023
TEA2017ABT NXP-TEA2017ABT_V02 Datasheet
604Kb / 66P
   Digital configurable LLC and DCM/QR PFC controller
Rev. 1.1 - 31 July 2023
More results


Html Pages

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


Datasheet Descarga

Go To PDF Page


Enlace URL




Política de Privacidad
ALLDATASHEET.ES
¿ALLDATASHEET es útil para Ud.?  [ DONATE ] 

Todo acerca de Alldatasheet   |   Publicidad   |   Contáctenos   |   Política de Privacidad   |   Intercambio de Enlaces   |   Lista de Fabricantes
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com