LED Drivers Reduce Footprint and Energy

Three miniature LED drivers from Diodes Incorporated are offering improved accuracy and thermal performance.

Provided in TSOT23-5 and thermally-enhanced DFN6 packages, the highly-integrated ZXLD1352, ZXLD1356 and ZXLD1366 deliver adjustable output currents of 350mA, 550mA and 1A respectively.

With a typical output-current accuracy of better than 1%, the ZXLD1356 and ZXLD1366 provide users with accurate current matching at working voltages up to 60V. Capable of producing output powers of 30W and 48W, respectively, the ZXLD1356 and ZXLD1366 drivers support up to 15 LEDs in an array for applications requiring minimum footprint and maximum efficiency.

Operating from a 7V to 30V supply and capable of producing an output current of up to 350mA, the ZXLD1352 can provide up to 8W of power for driving chains of up to 10 LEDs. The driver also offers flexible brightness control and accurate colour mixing with a large PWM dimming ratio of 1000:1.

The ZXLD drivers are continuous-mode inductive step-down converters, specifically designed for driving single or multiple high-brightness LEDs. Nominal output current, set by a resistor, is easily adjusted by applying a PWM or DC-voltage control signal to precisely match brightness requirements. A low-level control signal turns the output off and puts the driver into standby. These drivers need the support of just three discrete external components.

 

FEATURES 350mA, 550mA and 1A output currents 1% output current accuracy (ZXLD1356 and ZXLD1366) Support up to 15 LEDs 2.8mm x 2.9mm package (ZXLD1352)

APPLICATIONS Automotive lighting Architectural lighting Industrial lighting

 

 

Diodes Inc. (Zetex) / ZXLD-1352, -1356, -1366