ZLED7020 6~40Vin Driver 
Brief Description
The ZLED7x20 continuous-mode inductive stepdown
converter family is part of our line of LEDcontrol
ICs. It is designed for applications requiring
high brightness and high current. It can efficiently
drive a single LED or multiple series-connected
LEDs from a voltage input higher than the LED forward
voltage: Vin = 6 to 40 VDC. It provides an
adjustable output current 1.2A, which is set via an
external resistor and controlled by the ZLED7x20’s
integrated high-side output current-sensing circuit
and high speed internal 40V power switch. An
external control signal, which can be a DC voltage,
PWM, or microcontroller-generated waveform, on
the ADJ pin can also be used to linearly adjust a
continuous output current or to control a gated output
current.
The output can be turned off by applying a voltage
lower than 0.2V to the ADJ pin, which puts the
ZLED7x20 in a low-current standby state.
The ZLED7x20 enables diverse industrial and
consumer lighting applications requiring high
driving currents, wide operating voltage range,
high efficiency, and variable brightness control. It
offers over-temperature and LED open-circuit protection.
The ZLED7x20 can also minimize bill-ofmaterial
costs because very few external components
are required for most applications. Only a
resistor, a diode, an inductor, and three capacitors
are needed for a typical basic application.
See more at http://www.zmdi.com/products/led-drivers/zled7020/
