ZXLD1370

Document number: DS32165 Rev. 6 - 2

1 of 40

www.diodes.com

December 2016

© Diodes Incorporated

ZXLD1370

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

that efficiently controls 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)



An Automotive-Compliant Part is Available Under Separate

Data Sheet (ZXLD1370Q)

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.