ZXLD1374 Datasheet | Diodes Incorporated

A Product Line of Diodes Incorporated 60V HIGH ACCURACY 1.5A BUCK/BOOST/BUCK-BOOST LED DRIVER CONVERTER WITH AEC-Q100 Description The ZXLD1374 is a 60V LED driver with integrated 1.5A low side 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 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. Pin Assignments ADJ 1 REF 2 TADJ 3 SHP 4 STATUS 5 SGND 6 PGND 7 PGND 8 N/C 9 N/C 10 Thermal Pad 20 GI 19 PWM 18 FLAG 17 ISM 16 VIN 15 VAUX 14 LX 13 LX 12 N/C 11 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 pound (No Br, Sb) with lead Free Finish/ Ro HS pliant - Totally Lead-Free & Fully Ro HS pliant (Notes 1 & 2) - Halogen and Antimony Free. “Green” Device (Note 3) Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (Ro HS) & 2011/65/EU (Ro HS 2) pliant. 2. See http://.diodes. 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...