
Diodes Incorporated.
Description
The ZXLD1374 is an LED driver converter IC with integrated 1.5A low side switch to drive high current LEDs. It is a multitopology converter 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 16 LEDs in series.
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.
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
o 20:1 DC dimming
o 1000:1 dimming range at 500Hz
• Up to 1MHz switching
• High temperature control of LED current using TADJ
• Green mold compound (No Br, Sb) and RoHS compatible