Integrated Device Technology 40V LED Driver with Internal Switch ZLED7000ZI1R

The ZLED7000 , one of our ZLED Family of LED control ICs, is an inductive step-down converter that is optimal for driving a single LED or multiple LEDs (connected in series) from a voltage source greater than the voltage rating of the LED . The ZLED7000 operates in continuous mode. Capable of operating efficiently with voltage supplies ranging from 6 VDC to 40 VDC , it is ideal for low-voltage lighting applications. The ZLED7000 minimizes current consumption by remaining in a low-current standby mode (output is off) until a voltage of ≥0.3V is applied to the ADJ pin. In operating mode, the ZLED7000 can source LEDs with an output current of ≤750mA (≤30 watts of output power) that is externally adjustable (see data sheet). The ZLED7000 's integrated output switch and high-side current sensing circuit use an external resistor to adjust the average output current. Linearity is achieved via an external control signal at the ZLED7000 's ADJ pin, implemented either as a pulse-width modulation ( PWM ) waveform for a gated output current or a DC voltage for a continuous current.