Is Now Part of To learn more about ON Semiconductor, please visit our website at www.onsemi.com Please note: As part of the Fairchild Semiconductor integration, some of the Fairchild orderable part numbers will need to change in order to meet ON Semiconductors system requirements. Since the ON Semiconductor product management systems do not have the ability to manage part nomenclature that utilizes an underscore ( ), the underscore ( ) in the Fairchild part numbers will be changed to a dash (-). This document may contain device numbers with an underscore ( ). Please check the ON Semiconductor website to verify the updated device numbers. The most current and up-to-date ordering information can be found at www.onsemi.com. Please email any questions regarding the system integration to Fairchild questions onsemi.com. ON Semiconductor and the ON Semiconductor logo are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries. ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductors product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent-Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein. ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards, regardless of any support or applications information provided by ON Semiconductor. Typical parameters which may be provided in ON Semiconductor data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including Typicals must be validated for each customer application by customers technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.FL3100T Low-Side Gate Driver with PWM Dimming Control for Smart LED Lighting August 2015 FL3100T Low-Side Gate Driver with LED PWM Dimming Control for Smart LED Lighting Features Description The FL3100T 2 A gate driver is designed to drive an N- Non-inverting Input Logic with DIM Control Input for channel enhancement-mode MOSFET in low-side PWM Dimming Down to 0.1% for Hybrid Dimming switching applications by providing high peak current 4.5 to 18 V Operating Range pulses during the short switching intervals. The FL3100T has two inputs that can be configured to TTL Inputs Independent of Supply Voltage operate in non-inverting (IN) mode with a DIM pin for 2.5 A Sink / 1.8 A Source at V = 6 V OUT PWM dimming control of the LED Driver. High accuracy PWM dimming control required in smart LED drivers is Internal Resistors Turn Driver Off If No Inputs possible by adjusting the duty ratio of the DIM input. If 13 ns Typical Rise Time and 9 ns Typical Fall-Time one or both inputs are left unconnected, internal with 1 nF Load resistors bias the inputs such that the output is pulled LOW to hold the power MOSFET off. MillerDrive Technology The driver is available with fixed TTL input thresholds. Typical Propagation Delay Time Under 20 ns with Internal circuitry provides an under-voltage lockout Input Falling or Rising function by holding the output LOW until the supply 6-Lead, 2 x 2 mm MLP or 5-Pin, SOT23 Packages voltage is within operating range. The FL3100T delivers fast MOSFET switching performance, which helps Rated from -40C to 125C Ambient maximize efficiency in high-frequency LED driver designs. Applications The FL3100T is available in a 5-pin, SOT23 or a Smart LED Drivers with Accurate PWM Dimming 2 x 2 mm, 6-lead, Molded Leadless Package (MLP) for the smallest size with excellent thermal performance. General LED Lighting Typical Application Circuit I LED VDD FL3100T IN OUT MCU DIM Figure 1. LED PWM Dimming Application Circuit for Smart LED Lighting 2015 Fairchild Semiconductor Corporation www.fairchildsemi.com FL3100T Rev.1.0