L3080G-AB5-R

L3080 UTC | Alldatasheet

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UNISONIC TECHNOLOGIES CO., LTD L3080 Preliminary CMOS IC 30V/800mA INTEGRATED POWER LED DRIVER „ DESCRIPTION The UTC L3080 is a continuous conduction mode inductive step-down converter, designed for driving single or multiple series connected LEDs. Using a few external components. The UTC L3080 has a build-in power switch, based on different input voltage, The UTC L3080 can drive several 1W or 3W LEDs. The device has the function of t hermal shutdown protection and LED short-circuit/open-circuit protection. „ FEATURES * Up to 800mA output current * High efficiency (up to 97%) * Wide input voltage range: 5V~30V * Typical ±5% output current accuracy * Single DIM pin on/off and brightness control using DC voltage or PWM signal * LED open-circuit protection * LED short-circuit protection * Internal thermal shutdown protection. * Adjustable Constant LED Current „ ORDERING INFORMATION Ordering Number Lead Free Halogen Free Package Packing L3080L-AB5-R L3080G-AB5-R SOT-89-5 Tape Reel „ MARKING www.unisonic.com.tw 1 of 4 Copyright © 2016 Unisonic Technologies Co., Ltd QW-R125-043.a

„ PIN CONFIGURATION „ PIN DESCRIPTION PIN NO. PIN NAME DESCRIPTION

1 CS Current sense input

2 GND Signal and power ground

3 DIM Enable switch, analog and PWM dimming input. 4 SW Switch output. 5 V IN Input supply pin. „ BLOCK DIAGRAM VIN CS 3DIM GND 4 SW Current comparator RFE Current setting Driver Vgate Vsense UVLO5V Protect UNISONIC TECHNOLOGIES CO., LTD 2 of 4 www.unisonic.com.tw Q W - R 1 2 5 - 0 4 3 . a

UNISONIC TECHNOLOGIES CO., LTD 3 of 4 www.unisonic.com.tw Q W - R 1 2 5 - 0 4 3 . a „ ABSOLUTE MAXIMUM RATING (TA=25°C, unless specified otherwise) PARAMETER SYMBOL RATINGS UNIT Supply Voltage VIN 40 V Drain Voltage of the Internal Power Switch SW 40 V Current Sense Input (Respect to VIN) CS -6.0 V Logic Level Dimming Input DIM -0.3 ~ 6 V Switch Output Current ISW 1 A Power Dissipation PD 0.8 W Operation Junction Temperature Range TJ -40 ~ +150 °C Storage Temperature TSTG -55 ~ +150 °C Notes: 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. 2. Human body model, 100pF capacitor discharged through a 1.5kΩ resistor. „ THERMAL DATA PARAMETER SYMBOL RATINGS UNIT Junction to Ambient θJA 160 °C/W „ ELECTRICAL CHARACTERISTICS (Note 1, 2) (The following specifications apply for VIN=12V, TA=25°C, unless specified otherwise.) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Input Voltage VIN 5 30 V Under Voltage Lock Out VUVLO V IN Falling 4.7 V UVLO Hysteresis VUVLO, HYS VIN Rising 100 mV CURRENT SENSE Mean Current Sense Threshold Voltage VCS V IN-VCS 100 mV Sense Threshold Hysteresis VCS_HYS ±15 % OPERATING FREQUENCY Maximum Operation Frequency FSW 1 MHz OPERATING CURRENT Quiescent Supply Current with Output Off IOFF V DIM<0.3V 60 μA DIM INPUT Internal Supply Voltage VDIM DIM Floating 5 V DIM Input Voltage High VDIM_H 2.5 V DIM Input Voltage Low VDIM_L 0.1 V DIM Pull Up Resistor to Internal Supply Voltage RDIM 150 KΩ DIM BRIGHTNESS DIMMER DC Brightness Control Range VDIM_DC 0.5 2.5 V Duty Cycle Range of Low Frequency Dimming DPWM_LF 3000:1 Duty Cycle Range of High Frequency Dimming DPWM_HF 10:1 OUTPUT POWER SWITCH SW On Resistance RSW 0.6 Ω Continuous SW Current ISWmean 0.8 A SW Leakage Current ILEAK 0.5 5 µA THERMAL SHUTDOWN Thermal Shutdown Threshold TSD 150 °C Thermal Shutdown hysteresis TSD-hys 20 °C Notes: 1. Typical parameters are measured at 25˚C and represent the parametric norm. 2. Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis.

„ TYPICAL APPLICATION CIRCUIT UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. UTC reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. This document supersedes and replaces all information supplied prior to the publication hereof. UNISONIC TECHNOLOGIES CO., LTD 4 of 4 www.unisonic.com.tw Q W - R 1 2 5 - 0 4 3 . a