Diodes AL8400 /AL8400Q Manuel d'utilisateur

Naviguer en ligne ou télécharger Manuel d'utilisateur pour Matériel Diodes AL8400 /AL8400Q. Diodes AL8400 /AL8400Q User Manual Manuel d'utilisatio

  • Télécharger
  • Ajouter à mon manuel
  • Imprimer
  • Page
    / 13
  • Table des matières
  • MARQUE LIVRES
  • Noté. / 5. Basé sur avis des utilisateurs
Vue de la page 0
AL8400/ AL8400Q
Document number: DS35115 Rev. 4 - 2
1 of 13
www.diodes.com
August 2012
© Diodes Incorporated
AL8400 /
A
L8400Q
LINEAR LED DRIVER-CONTROLLER with 200mV
CURRENT SENSE VOLTAGE and AUTOMOTIVE GRADE
Description
The AL8400 is a 5-terminal adjustable Linear LED driver-controller
offering excellent temperature stability and output handling capability.
The AL8400 simplifies the design of linear and isolated LED drivers.
With its low 200mV current sense FB pin, it controls the regulation of
LED current with minimal power dissipation when compared to
traditional linear LED drivers. This makes it ideal for medium to high
current LED driving.
The AL8400 open-collector output can operate from 0.2V to 18V
enabling it to drive external MOSFET and Bipolar transistors. This
enables the MOSFET and Bipolar selection to be optimized for the
chosen application. It also provides the capability to drive longer LED
chains, by tapping V
CC
from the chain, where the chain voltage may
exceed 18V.
It is available in the space saving low profile SOT353 package.
The AL8400Q is Automotive Grade and is AEC-Q100 Grade 1
qualified.
Applications
Isolated Offline LED Lamps
Linear LED Driver
LED Signs
Instrumentation Illumination
Pin Assignments
Features
Low Reference Voltage (V
FB
= 0.2V)
-40 to +125°C Temperature Range
3% Reference Voltage Tolerance at +25°C
Low Temperature Drift
0.2V to 18V Open-Collector Output
High Power Supply Rejection:
(> 45dB at 300kHz)
AL8400QSE-7 Automotive Grade qualified to AEC-Q100 Grade 1
SOT353: Available in “Green” Molding Compound (No Br, Sb)
Lead-Free Finish; RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Notes: 1. EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. All applicable RoHS exemptions applied.
2. See http://www.diodes.com for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
Typical Applications Circuit
OUT
FB
E1
GND
R
B
Q2
R
SET
C
L
I
LED
= V
REF
/R
SET
C
D
AL8400
Vcc
12
3
5
4
GND
Vcc
Green
Vue de la page 0
1 2 3 4 5 6 ... 12 13

Résumé du contenu

Page 1 - AL8400/ AL8400Q

AL8400/ AL8400Q Document number: DS35115 Rev. 4 - 2 1 of 13 www.diodes.com August 2012© Diodes Incorporated AL8400 /AL8400QLINEAR LED DRIVER-CONTRO

Page 2

AL8400/ AL8400Q Document number: DS35115 Rev. 4 - 2 10 of 13 www.diodes.com August 2012© Diodes Incorporated AL8400 /AL8400Q Application Informati

Page 3

AL8400/ AL8400Q Document number: DS35115 Rev. 4 - 2 11 of 13 www.diodes.com August 2012© Diodes Incorporated AL8400 /AL8400Q Application Informatio

Page 4

AL8400/ AL8400Q Document number: DS35115 Rev. 4 - 2 12 of 13 www.diodes.com August 2012© Diodes Incorporated AL8400 /AL8400Q Ordering Information

Page 5

AL8400/ AL8400Q Document number: DS35115 Rev. 4 - 2 13 of 13 www.diodes.com August 2012© Diodes Incorporated AL8400 /AL8400Q Suggested Pad Layout

Page 6 - Control Drive Circuit Path

AL8400/ AL8400Q Document number: DS35115 Rev. 4 - 2 2 of 13 www.diodes.com August 2012© Diodes Incorporated AL8400 /AL8400Q Pin Descriptions Pin

Page 7 - =−−=−−=

AL8400/ AL8400Q Document number: DS35115 Rev. 4 - 2 3 of 13 www.diodes.com August 2012© Diodes Incorporated AL8400 /AL8400Q Recommended Operating

Page 8 - FBminBEmaxCC

AL8400/ AL8400Q Document number: DS35115 Rev. 4 - 2 4 of 13 www.diodes.com August 2012© Diodes Incorporated AL8400 /AL8400Q Typical Characteristic

Page 9 - MOSFET Example Choosing R

AL8400/ AL8400Q Document number: DS35115 Rev. 4 - 2 5 of 13 www.diodes.com August 2012© Diodes Incorporated AL8400 /AL8400Q Application Informatio

Page 10 - FBminGSmaxCC

AL8400/ AL8400Q Document number: DS35115 Rev. 4 - 2 6 of 13 www.diodes.com August 2012© Diodes Incorporated AL8400 /AL8400Q Application Information

Page 11

AL8400/ AL8400Q Document number: DS35115 Rev. 4 - 2 7 of 13 www.diodes.com August 2012© Diodes Incorporated AL8400 /AL8400Q Application Informatio

Page 12 - (1) SOT353

AL8400/ AL8400Q Document number: DS35115 Rev. 4 - 2 8 of 13 www.diodes.com August 2012© Diodes Incorporated AL8400 /AL8400Q Application Informatio

Page 13 - © Diodes Incorporated

AL8400/ AL8400Q Document number: DS35115 Rev. 4 - 2 9 of 13 www.diodes.com August 2012© Diodes Incorporated AL8400 /AL8400Q Application Informatio

Commentaires sur ces manuels

Pas de commentaire