Motor de Búsqueda de Datasheet de Componentes Electrónicos
Selected language     Spanish  ▼

Delete All
ON OFF
ALLDATASHEET.ES

X  

Preview PDF Download HTML

TPS61236 Datasheet(PDF) 13 Page - Texas Instruments

No. de Pieza. TPS61236
Descripción  TPS6123x 8-A Valley Current Synchronous Boost Converters with Constant Current Output Feature
Descarga  38 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Fabricante  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
Logo 

TPS61236 Datasheet(HTML) 13 Page - Texas Instruments

Zoom Inzoom in Zoom Outzoom out
 13 / 38 page
background image
OUT
IN
V
V
1
D
K
˜
sw
IN
L
f
L
D
V
I
˜
˜
'
)
2
I
I
(
)
D
1
(
I
L
LIM
MAX
_
OUT
'
˜
Inductor
Current
IIN(DC)
IIN(DC)
Increased
Load Current
Current Limit
Threshold
Rectifier
Current
IOUT(DC)
fSW
¨,L
¨,L
¨,L
IOUT_MAX
IPEAK
IVALLEY = ILIM
13
TPS61235P, TPS61236P
www.ti.com
SLVSCK4A – SEPTEMBER 2015 – REVISED MAY 2016
Product Folder Links: TPS61235P TPS61236P
Submit Documentation Feedback
Copyright © 2015–2016, Texas Instruments Incorporated
Feature Description (continued)
Figure 15. Current Limit Operation
The maximum output current, IOUT_MAX, before the device enters into over current protection is decided by its
operation condition and the switch current limit threshold. It can be calculated by using the following equations.
(3)
(4)
(5)
Where:
D is the duty cycle of the boost converter,
ILIM is the switch valley current limit threshold,
ΔIL is the inductor current ripple,
L is the inductor value,
fSW is the switching frequency,
η is the conversion efficiency under the operation condition.
To estimate the maximum output current capability in the worst case, the minimum input voltage value, highest
fSW value, and minimum ILIM value should be used for the calculation. And η should be the efficiency under this
minimum VIN operation condition.
When the current limit is reached, the output voltage decreases during further load increases. If the output
voltage drops below the input voltage, the device enters into the start-up process.
8.3.6 Load Status Indication
The TPS6123x can indicate load status by the INACT pin. The INACT pin is an open drain output and should be
connected to a pull-up resistor. The INACT pin outputs high impedance when the boost converter works under
inactive status (no load or light load status), and it outputs low logic when the boost converter works under active
status (moderate load or heavy load status).


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  36  37  38 


Datasheet Download




Enlace URL




Privacy Policy
ALLDATASHEET.ES
Does ALLDATASHEET help your business so far?  [ DONATE ]  

Todo acerca de Alldatasheet   |   Publicidad   |   Contáctenos   |   Política de Privacidad   |   Favorito   |   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