Motore di ricerca datesheet componenti elettronici
  Italian  ▼
ALLDATASHEETIT.COM

X  

ML0308 Scheda tecnica(PDF) 4 Page - Minilogic Device Corporation Limited

Il numero della parte ML0308
Spiegazioni elettronici  Tiny Package, High Efficiency, White LED Driver and Step-up DC/DC Converter
Download  9 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Produttore elettronici  MINILOGIC [Minilogic Device Corporation Limited]
Homepage  http://www.minilogic.com.hk
Logo MINILOGIC - Minilogic Device Corporation Limited

ML0308 Scheda tecnica(HTML) 4 Page - Minilogic Device Corporation Limited

  ML0308 Datasheet HTML 1Page - Minilogic Device Corporation Limited ML0308 Datasheet HTML 2Page - Minilogic Device Corporation Limited ML0308 Datasheet HTML 3Page - Minilogic Device Corporation Limited ML0308 Datasheet HTML 4Page - Minilogic Device Corporation Limited ML0308 Datasheet HTML 5Page - Minilogic Device Corporation Limited ML0308 Datasheet HTML 6Page - Minilogic Device Corporation Limited ML0308 Datasheet HTML 7Page - Minilogic Device Corporation Limited ML0308 Datasheet HTML 8Page - Minilogic Device Corporation Limited ML0308 Datasheet HTML 9Page - Minilogic Device Corporation Limited  
Zoom Inzoom in Zoom Outzoom out
 4 / 9 page
background image
ML0308 Preliminary
______________________________________________________________________________________________________
4/9
Rev. B, July 2005
BLOCK DIAGRAM – ML0308B
Figure 2: Internal Block Diagram of ML0308B
OPERATION
The ML0308 uses a pulse-skipping PFM, current
mode control scheme to provide excellent line and
load
regulation.
Its
operation
can
be
best
explained with reference to figure 2 and figure 1.
The oscillator generates a clock of 1.2MHz with
75% duty ratio for the PFM controller. When CE
pin goes HIGH, the power MOSFET switches at
1.2 MHz to charge the inductor and boost the
output voltage to the target level specified by R1
and R2. The output voltage is set as follow:
V
R
R
R
VOUT
23
.
1
2
2
1
×
+
=
(ML0308B)
When the inductor current reaches the current
limit, comparator A3 will toggle and the control
circuit will turn off the MOSFET immediately. So
the inductor current is limited. Therefore, soft-start
is achieved and potential hazards like current and
voltage overshoot are avoided. When output
voltage reaches and rises over the regulation point,
amplifier A2 will amplify the error. The chip will
adjust its pulse-skipping rate to monitor the output
voltage.


Codice articolo simile - ML0308

Produttore elettroniciIl numero della parteScheda tecnicaSpiegazioni elettronici
logo
Minilogic Device Corpor...
ML0308 MINILOGIC-ML0308 Datasheet
271Kb / 4P
   ML0308 Backlight LED Boost Converter
More results

Descrizione simile - ML0308

Produttore elettroniciIl numero della parteScheda tecnicaSpiegazioni elettronici
logo
Richtek Technology Corp...
RT9266 RICHTEK-RT9266 Datasheet
266Kb / 14P
   Tiny Package, High Efficiency, Step-up DC/DC Converter
RT9266B RICHTEK-RT9266B Datasheet
316Kb / 13P
   Tiny Package, High Efficiency, Step-Up DC/DC Converter
logo
Leshan Radio Company
LR9908 LRC-LR9908 Datasheet
427Kb / 8P
   TINY PACKAGE HIGH EFFICIENCY STEP-UP DC/DC CONVERTER
logo
Richtek Technology Corp...
RT9275 RICHTEK-RT9275 Datasheet
305Kb / 14P
   Tiny Package, High Efficiency, Step-Up DC/DC Converter
logo
YOBON TECHNOLOGIES,INC.
YB1522 YOBON-YB1522 Datasheet
1Mb / 12P
   Step-up DC-DC Converter White LED Driver
logo
Taiwan Semiconductor Co...
TS1520 TSC-TS1520_10 Datasheet
221Kb / 12P
   Step-up DC-DC Converter, White LED Driver
TS1520 TSC-TS1520 Datasheet
1,011Kb / 12P
   Step-Up DC-DC Converter, White LED Driver
logo
YOBON TECHNOLOGIES,INC.
YB1518 YOBON-YB1518 Datasheet
1Mb / 12P
   Step-up DC-DC Converter White LED Driver
YB1508 YOBON-YB1508 Datasheet
774Kb / 7P
   Step-up DC-DC Converter , White LED Driver
YB1506 YOBON-YB1506 Datasheet
566Kb / 10P
   Step-up DC-DC Converter , White LED Driver
More results


Html Pages

1 2 3 4 5 6 7 8 9


Scheda tecnica Scarica

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEETIT.COM
Lei ha avuto il aiuto da alldatasheet?  [ DONATE ] 

Di alldatasheet   |   Richest di pubblicita   |   contatti   |   Privacy Policy   |   scambio Link   |   Ricerca produttore
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