ZXLD383 Datasheet (Diodes Incorporated) - SINGLE OR MULTI CELL LED DRIVER

ZXLD383, SINGLE OR MULTI CELL LED DRIVER

Pin No.

1 2 3 4 5 Name ENA GND NC VOUT VCC Description Enable / Photodiode array battery charge input Ground Not connected (internally open circuit) Switch output external inductor/LED Supply voltage, generally Alkaline, NiMH or NiCd single cell ZXLD383 Document number: DS32189 Rev.

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A Product Line of Diodes Incorporated ZXLD383 SINGLE OR MULTI CELL LED DRIVER SOLUTION www.DataSheet4U.com Summary The ZXLD383 is a single or multi cell LED driver designed for applications requiring step-up voltage conversion from a very low input voltage.

The IC generates constant current pulses that are ideal for driving single or multiple LEDs over a wide range of operating voltages.

It includes an on/off enable input that can be driven directly from a photocell array or an open collector/

ZXLD383 Features

* an ultra-low voltage drop diode to ground, eliminating the need for a photocell array isolation diode in Garden Light applications. The ZXLD383 uses a PFM control technique to drive an internal switching transistor which exhibits a low saturation resistance. This ensures high efficiency, even for in