Diodes ZXLD1370 Manuel d'utilisateur

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ZXLD1370
Document number: DS32165 Rev. 5 - 2
1 of 39
www.diodes.com
September 2012
© Diodes Incorporated
ZXLD1370
A
Product Line o
f
Diodes Incorporated
60V HIGH ACCURACY BUCK/BOOST/BUCK-BOOST
LED DRIVER-CONTROLLER WITH AEC-Q100
Description
The ZXLD1370 is an LED driver controller IC for driving external
MOSFETs to drive high current LEDs. It is a multi-topology controller
enabling it to efficiently control the current through series connected
LEDs. The multi-topology enables it to operate in buck, boost and
buck-boost configurations.
The 60V capability coupled with its multi-topology capability enables it
to be used in a wide range of applications and drive in excess of
15 LEDs in series.
The ZXLD1370 is a modified hysteretic controller using a patent
pending control scheme providing high output current accuracy in all
three modes of operation. High accuracy dimming is achieved
through DC control and high frequency PWM control.
The ZXLD1370 uses two pins for fault diagnosis. A flag output
highlights a fault, while the multi-level status pin gives further
information on the exact fault.
Features
0.5% Typical Output Current Accuracy
6V to 60V Operating Voltage Range
LED Driver Supports Buck, Boost and Buck-Boost
Configurations
Wide Dynamic Range Dimming
20:1 DC Dimming
1000:1 Dimming Range at 500Hz
Up to 1MHz Switching
High Temperature Control of LED Current Using TADJ
Available in Automotive Grade with AEC-Q100 and TS16949
Certification
Available in “Green” Molding Compound (No Br, Sb) with Lead
Free Finish/ RoHS Compliant
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Pin Assignments
TSSOP-16EP
Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
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.
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Résumé du contenu

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Page 2 - Functional Block Diagram

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Page 3 - Pin Descriptions

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Page 4 - Package Thermal Data

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Page 8 - Typical Characteristics

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Page 10 - ZXLD1370

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Page 14 - Application Information

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