Data Sheet Rev. 1.00 / June 2012 ZSLS7025 Boost LED Driver ZSLS7025 Boost LED Driver Brief Description Features Wide application input voltage range: 5V to 100V The ZSLS7025, one of our ZSLS Family of LED (Higher voltage supported. See section 2.1 in the control ICs, is a constant current boost converter data sheet.) designed for driving high-brightness LEDs. It is Constant current output limited only by external optimal for driving multiple white LEDs connected component selection in series so that the LED current is uniform for No loop compensation required better brightness and color control. The wide input range and high output current enables diverse Internal over-voltage protection industrial, after-market automotive, and consumer Internal over-temperature protection lighting applications. Brightness control via PWM or DC voltage control signal input The ZSLS7025 output current is adjustable via an external current sense resistor and can deliver SOP-8 package stable constant output current from a few milliamps up to 2A or higher. Benefits The ZSLS7025 drives a constant current into the High efficiency: up to 95% load. The control loop features a pulse frequency Minimum bill of materials modulated (PFM) architecture that is inherently Small form-factor package stable and does not need loop compensation. The ZSLS7025 supports pulse-width modulation (PWM) or linear voltage dimming, which allows Available Support flexible control of the LED luminance. Demonstration Kit The ZSLS7025 can operate in applications with a wide input voltage range from 5V to 100V. An Physical Characteristics integrated over-voltage protection (OVP) circuit protects the system, even under no-load Junction temperature: -40C to 125C conditions. The over-voltage protection is RoHS compliant adjustable via external resistors R and R . 1 2 For additional information on our LED driver family, visit www.zmdi.com/products/led-drivers/ ZSLS7025 Typical Application Circuit V =5 to 100 VDC IN L 1 D 1 C IN R VDD ZSLS7025 C OUT LED VDD GATE Q 1 R 1 String TOFF CS ADJ FB C VDD GND OVP R R R R TOFF CS 2 FB 2012 Zentrum Mikroelektronik Dresden AG Rev. 1.00 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.