データシートサーチシステム
  Japanese  ▼
ALLDATASHEET.JP

X  

MAP3242 データシート(PDF) 17 Page - MagnaChip Semiconductor.

部品番号 MAP3242
部品情報  4-channel LED Driver for High Brightness LEDs
Download  22 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
メーカー  MGCHIP [MagnaChip Semiconductor.]
ホームページ  http://www.magnachip.co.kr
Logo MGCHIP - MagnaChip Semiconductor.

MAP3242 データシート(HTML) 17 Page - MagnaChip Semiconductor.

Back Button MAP3242 Datasheet HTML 13Page - MagnaChip Semiconductor. MAP3242 Datasheet HTML 14Page - MagnaChip Semiconductor. MAP3242 Datasheet HTML 15Page - MagnaChip Semiconductor. MAP3242 Datasheet HTML 16Page - MagnaChip Semiconductor. MAP3242 Datasheet HTML 17Page - MagnaChip Semiconductor. MAP3242 Datasheet HTML 18Page - MagnaChip Semiconductor. MAP3242 Datasheet HTML 19Page - MagnaChip Semiconductor. MAP3242 Datasheet HTML 20Page - MagnaChip Semiconductor. MAP3242 Datasheet HTML 21Page - MagnaChip Semiconductor. Next Button
Zoom Inzoom in Zoom Outzoom out
 17 / 22 page
background image
Confidential
Datasheet Version 1.1
Jun 13
th 2013
17
Output Rectifying Diode
Schottky diodes are the ideal choice for MAP3242
due to their low forward voltage drop and fast
switching speed. Make sure that the diode has a
voltage rating greater that the possible maximum
output voltage. The diode conducts current only when
the power switch is turned off.
Input Capacitor
In boost converter, input current flows continuously
into the inductor; AC ripple component is only
proportional to the rate of the inductor charging, thus,
smaller value input capacitors may be used. Ensure the
voltage rating of the input capacitor is suitable to
handle the full supply range.
A capacitor with low ESR should be chosen to
minimize heating effects and improve system efficiency.
Output Capacitor
The output capacitor acts to smooth the output
voltage and supplies load current directly during the
conduction phase of the power switch. Output ripple
voltage consists of the discharge of the output
capacitor during the FET ton period and the voltage
drop due to load current flowing through the ESR of the
output capacitor. The ripple voltage is shown in
following equation.
ESR
I
f
C
D
I
V
OUT
SW
OUT
OUT
OUT
×
+
×
×
=
Assume a ceramic capacitor is used. The minimum
capacitance needed for a given ripple can be estimated
by following equation.
OUT
SW
OUT
OUT
OUT
IN
OUT
V
f
V
I
V
V
C
×
×
×
=
)
(
Loop Compensation
The MAP3242 controls in current mode. Current mode
easily achieves compensation by consisting simple
single pole from double pole that LC filer makes at
voltage mode. In general, crossover frequency is
selected from 1/3 ~ 1/6 range of the switching
frequency. If fc is large, there is possibility of oscillation
to occur, although time response gets better.
On the other hand, if fc is small, time response will be
bad, while it has improved stability, which may cause
over shoot or under shoot in abnormal condition.
Layout Consideration
A gate drive signal output from GATE pin becomes
noise source, which may cause malfunction of IC due
to cross talk if placed by the side of an analog line. It is
recommended
to
avoid
placing
the
output
line
especially by the side of CS, ADIM, ISET, FSW, OVP,
COMP, VLS pins as far as possible.
All the GND of MAP3242, AGND, PGND and
LGND(HSOP), are totally seperated internally. For
GND layout, it is the best that all the GNDs are
seperated to improve noise immunity and avoid
unstability. If layout difficulty is high, the second best is
tying PGND and LGND(HSOP) and seperating AGND.
Followings are GND layout rules for each package.
(1) HSOP
-
Tie PGND/LGND and seperate AGND
-
Heak sink pins(HS1, HS2) shoud be tied to AGND
(2) SOIC
-
Separate AGND and PGND
(3) ETSSOP
-
Separate AGND and PGND
-
Exposed pad shoud be tied to AGND with
multiple vias


同様の部品番号 - MAP3242

メーカー部品番号データシート部品情報
logo
MagnaChip Semiconductor...
MAP3249 MGCHIP-MAP3249 Datasheet
4Mb / 19P
   4-channel LED Driver for High Brightness LEDs
MAP3249SIRH MGCHIP-MAP3249SIRH Datasheet
4Mb / 19P
   4-channel LED Driver for High Brightness LEDs
MAP3249TERH MGCHIP-MAP3249TERH Datasheet
4Mb / 19P
   4-channel LED Driver for High Brightness LEDs
More results

同様の説明 - MAP3242

メーカー部品番号データシート部品情報
logo
MagnaChip Semiconductor...
MAP3204 MGCHIP-MAP3204 Datasheet
389Kb / 11P
   4-channel LED Driver for High Brightness LEDs
MAP3205 MGCHIP-MAP3205 Datasheet
892Kb / 13P
   4-channel LED Driver for High Brightness LEDs
MAP3249 MGCHIP-MAP3249 Datasheet
4Mb / 19P
   4-channel LED Driver for High Brightness LEDs
MAP3222 MGCHIP-MAP3222 Datasheet
1Mb / 15P
   Dual Channel High Brightness LED Driver
logo
Bruckewell Technology L...
BW9910 BWTECH-BW9910 Datasheet
1Mb / 14P
   High Brightness LED Driver
logo
Princeton Technology Co...
PT6903 PTC-PT6903 Datasheet
233Kb / 4P
   High Brightness LED Driver
PT6903 PTC-PT6903_10 Datasheet
233Kb / 4P
   High Brightness LED Driver
PT6905 PTC-PT6905 Datasheet
358Kb / 4P
   High Brightness LED Driver
logo
Maxim Integrated Produc...
MAX16838 MAXIM-MAX16838_14 Datasheet
1Mb / 21P
   Integrated, 2-Channel, High-Brightness LED Driver
Rev 3; 6/13
logo
Gamma Microelectronics ...
GM9910B GAMMA-GM9910B Datasheet
192Kb / 8P
   UNIVERAL HIGH BRIGHTNESS LED DRIVER
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


データシート ダウンロード

Go To PDF Page


リンク URL




プライバシーポリシー
ALLDATASHEET.JP
ALLDATASHEETはお客様のビジネスに役立ちますか?  [ DONATE ] 

Alldatasheetは   |   広告   |   お問い合わせ   |   プライバシーポリシー   |   リンク交換   |   メーカーリスト
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