ZLED7520-ZI1R ZMDI

Data Sheet Rev. 1.2 / August 2011 ZLED7520 High Current 40V LED Driver with Internal Switch ZLED7520 High Current 40V LED Driver with Internal Switch Brief Description Features The ZLED7x20 continuous-mode inductive step- Up to 0.75A output current down converter family is part of our line of LED- Internal 40V power switch control ICs. It is designed for applications requiring Wide DC input voltage range 6 to 40 VDC high brightness and high current. It can efficiently Output current accuracy: 3% (typical) drive a single LED or multiple series-connected Dimming ratio: 1200:1 LEDs from a voltage input higher than the LED for- LED open-circuit protection ward voltage: Vin = 6 to 40 VDC. It provides an adjustable output current 1.2A, which is set via an Thermal shutdown protection external resistor and controlled by the ZLED7x20s integrated high-side output current-sensing circuit Benefits and high speed internal 40V power switch. An High efficiency: up to 98% external control signal, which can be a DC voltage, Single pin on/off and brightness control using DC PWM, or microcontroller-generated waveform, on voltage or PWM the ADJ pin can also be used to linearly adjust a Very few external components needed for continuous output current or to control a gated out- operation put current. Footprint compatible to our ZLED7000 depending The output can be turned off by applying a voltage on the application. lower than 0.2V to the ADJ pin, which puts the ZLED7x20 in a low-current standby state. Available Support The ZLED7x20 enables diverse industrial and Evaluation Kit consumer lighting applications requiring high driving currents, wide operating voltage range, high efficiency, and variable brightness control. It Physical Characteristics offers over-temperature and LED open-circuit pro- Operating temperature: -40C to 105C tection. The ZLED7x20 can also minimize bill-of- Switching frequency: up to 1MHz material costs because very few external com- ponents are required for most applications. Only a ZLED7x20 Family Selection Matrix resistor, a diode, an inductor, and three capacitors are needed for a typical basic application. Product Max. Current Output Package ZLED7020 1.2A SOT89-5 ZLED7320 1.0A DFN-5 ZLED7520 0.75A DFN-5 ZLED7x20 Typical Application Circuit ZLED7720 0.35A DFN-5 For additional information on our ZLED driver family, visit www.zmdi.com/products/led-drivers/ 2011 Zentrum Mikroelektronik Dresden AG Rev. 1.2 All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice.