ZXLD1374QESTTC

A Product Line of Diodes Incorporated ZXLD1374 60V HIGH ACCURACY 1.5A BUCK/BOOST/BUCK-BOOST LED DRIVER CONVERTER WITH AEC-Q100 Description Pin Assignments The ZXLD1374 is a 60V LED driver with integrated 1.5A low side ADJ REF TADJ SHP switch to drive high current LEDs. It is a multi-topology converter enabling it to operate in Buck, Boost and Buck-boost configurations; efficiently controlling the current of up to 16-series connected LEDs. The ZXLD1374 is a modified hysteretic converter using a patent pending control scheme providing high output current accuracy in all 1 2 3 4 STATUS 5 SGND 6 PGND 7 PGND 8 N/C 9 N/C 10 three topologies. High accuracy dimming is achieved through DC control and high frequency PWM control. The ZXLD1374 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. The ZXLD1374 has been qualified to AEC-Q100 Grade 1 enabling operation in ambient temperatures from -40 to +125°C. Thermal Pad 20 19 18 17 GI PWM FLAG ISM 16 15 14 13 12 11 VIN VAUX LX LX N/C N/C Features • • • • • • • • • • • 0.5% Typical Output Current Accuracy 6.3 to 60V Operating Voltage Range 1.5A Integrated Low Side Switch LED Driver Supports Buck, Boost and Buck-Boost Topologies 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 AEC-Q100 Grade 1 TSSOP-20EP: Available in “Green” Molding Compound (No Br, Sb) with lead Free Finish/ RoHS Compliant ƒ Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) ƒ Halogen and Antimony Free. “Green” Device (Note 3) 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