Datenblatt-Suchmaschine für elektronische Bauteile
  German  ▼
ALLDATASHEETDE.COM

X  

Preview PDF HTML

LDM24-XX-XXX Datenblatt(PDF) 4 Page - MicroPower Direct, LLC

Teilenummer LDM24-XX-XXX
Bauteilbeschribung  Miniature, Wide Input Constant Current DC/DC LED Drivers
PDF  4 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Hersteller  MPD [MicroPower Direct, LLC]
Direct Link  http://www.micropowerdirect.com
Logo MPD - MicroPower Direct, LLC

LDM24-XX-XXX Datenblatt(HTML) 4 Page - MicroPower Direct, LLC

  LDM24-XX-XXX Datasheet HTML 1Page - MicroPower Direct, LLC LDM24-XX-XXX Datasheet HTML 2Page - MicroPower Direct, LLC LDM24-XX-XXX Datasheet HTML 3Page - MicroPower Direct, LLC LDM24-XX-XXX Datasheet HTML 4Page - MicroPower Direct, LLC  
Zoom Inzoom in Zoom Outzoom out
 4 / 4 page
background image
MicroPower Direct
We Power Your Success - For Less!
292 Page Street Ste D Stoughton, MA 02072
•
TEL: (781) 344-8226
•
FAX: (781) 344-8481
•
E-Mail: sales@micropowerdirect.com
www.micropowerdirect.com
Notes:
• All dimensions are typical in inches (mm)
• Tolerance x.xx = ±0.02 (±0.50)
• Pin 1 is marked by a “dot” or indentation on the top of the unit
Mechanical Dimensions
Analog Output Current Control (VCNT = 5V)
In the second circuit, the input DC/DC has
been changed to a higher power model,
and the POL regulator is replaced by the
shunt regulator (D1) circuit connected in
parallel with the resistor network. The
regulator will maintain the voltage across
R2 and R3 at 2.5 VDC, insuring that the
1.25 VDC limit on the VADJ pin will not be
exceeded.
When using the analog control input, the
nominal output current is equal to:
.
II
x
V
125
NOM
MAX
ADJ
=
The VADJ input should be left open if not
used. Grounding VADJ will shut the unit
down. Connecting VADJ to directly to +VIN
may damage the unit.
Analog Output Current Control (5 - 30 VIN)
Pin Connections
Pin
Function
1-VIN
-DC Supply
2VADJ
PWM, On/Off
7
-LED LED Cathode Connection
8
+LED
LED Anode Connection
14
+VIN
+DC Supply
The output current of the unit can also
be set by adjusting the voltage level on
the VADJ input to a value between 0.3V to
1.25V (IOUT will vary from 25% to 100% of
rated output current). Care must be taken
not to exceed 1.25V on this input, or the
driver may be damaged.
The simple analog circuit at left uses a 15W
DC/DC converter operating off a 12 VDC
input line, to keep the input to the LED
driver at 24 VDC.
The POL regulator, driven off the same
input line maintains the control voltage
(for the VADJ input) at 5 VDC. The resister
network of R1 and R2 can now be used
to set the output current level of the LED
driver. This level is equal to:
V
RR
R
XV
12
2
ADJ
CTRL
=
+
Get a full explanation of the
circuits in this datasheet and
more in “Driving LEDs”.
Available free at the MPD
website



Html Pages

1 2 3 4


Datenblatt Download

Go To PDF Page


Link URL



War ALLDATASHEET hilfreich?  [ DONATE ] 

Über Alldatasheet   |   Werbung   |   Kontakt   |   Privatsphäre und Datenschutz   |   Link zum Datenblatt    |   Linktausch   |   Hersteller
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