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The ZXLD1356 is a continuous mode inductive step-down converter, designed for driving single or multiple series connected LEDs efficiently from a voltage source higher than the LED voltage. The device operates from an input supply between 6V and 60V and provides an externally adjustable output current of up to 550mA. Depending upon supply voltage and external components, this can provide up to 30 watts of output power.
The ZXLD1356 has been qualified to AECQ100 Grade 1 enabling operation in ambient temperatures from -40°C to +125°C.
Output current can be adjusted above, or below the set value, by applying an external control signal to the 'ADJ' pin. Enhanced output current dimming can be achieved by applying a PWM signal to the ‘ADJ’ pin.
Typically better than 0.8% output current accuracy
Simple and with low part count
Single pin on/off and brightness control using DC voltage or PWM
PWM resolution up to 1000:1
High efficiency (up to 97%)
Wide input voltage range: 6V to 60V
Inherent open-circuit LED protection
Available in thermally enhanced packages
V-DFN3030-6 θJA 44°C/W
TSOT25 θJA 82°C/W
Available in “Green” Molding Compound (No Br, Sb) with lead Free Finish/ RoHS Compliant
Totally Lead-Free & Fully RoHS Compliant
Halogen and Antimony Free. “Green” Device
ZXLD1356QET5TA Automotive Grade qualified to AEC-Q100 Grade 1