Small-Footprint Drivers for LED-Lighting Applications

Capable of producing output powers of 30W and 48W and offered with a 3mm x 3mm footprint, ZXLD1356/66 LED drivers enable miniaturised design for a range of lighting applications.

Zetex’s ZXLD1356 and ZXLD1366 are continuous-mode inductive step-down converters capable of supporting up to 15 LEDs. The highly-integrated miniature LED drivers offer improved accuracy and thermal performance.With an output current accuracy that is typically better than 1%, the ZXLD1356/66 drivers provide accurate current matching at working voltages up to 60V. Adjustable output currents of 550mA and 1A are delivered by the ZXLD1356 and ZXLD1366 respectively.

These continuous-mode inductive step-down converters are specifically designed for driving high-brightness LEDs. To match brightness requirements, nominal output current can be set by a resistor and easily adjusted by applying a PWM or DC signal. A low-level control signal can be used to turn the output off, putting the driver into standby. Implementing these drivers requires the addition of just three discrete external components.

 

FEATURES 0.8% typical output-current accuracy Available in thermally-enhanced DFN package Single-pin on/off and brightness control 1000:1 maximum PWM resolution Input voltage range: 6V to 60V Inherent open-circuit LED protection

APPLICATIONS Low-voltage halogen replacement Automotive lighting Low-voltage industrial lighting LED back-up lighting Illuminated signs Emergency lighting Display backlighting Refrigeration lights

 

 

 

• NIC Components’Quick Kit, page 090119

 

Diodes/Zetex / ZXLD1356/66