FP7171DR-G1 – Universal High Brightness LED Driver

FP7171DR-G1 Datasheet PDF learn more.

Part number : FP7171DR-G1

Functions : This is a kind of semiconductor, Universal High Brightness LED Driver.

Pin arrangement :

Package information :

Manufacturer : Feeling Technology

Image :

FP7171DR-G1 Datasheet PDF

The texts in the PDF file :

FP7171 Universal High Brightness LED Driver General


The FP7171 is an open loop, current mode, control LED driver IC. The FP7171 can be programmed to operate in either a constant frequency or constant off-time mode. It includes an 15 450V linear regulator which allows it to work from a wide range of input voltages without the need for an external low voltage supply. The FP7171 includes a PWM dimming and 0 – 250mV linear dimming input which can be used for linear dimming of the LED current. The FP7171 is ideally suited for buck LED drivers. Since the FP7171 operates in open loop current mode control, the controller achieves good output current regulation without the need for any loop compensation.


 Switch mode controller for single switch LED drivers  Enhanced drop-in replacement to the FP7171  Open loop peak current controller  Internal 15 to 450V linear regulator  Constant frequency or constant off-time operation  Linear and PWM dimming capability  Requires few external components for operation Applications  DC/DC or AC/DC LED driver applications  RGB backlighting LED driver  Back lighting of flat panel displays  General purpose constant current source  Signage and decorative LED lighting  Chargers Typical Application Circuit VIN VIN RT Linear Dimming FP7171 CS LD GND VDD GATE PWMD PWM Dimming This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product. Website: http://www.feeling-tech.com.tw Rev. 0.6 1/12 FP7171 Function Block Diagram VIN VDD POR LD _ + CS + Blanking 250mV _ R Q GATE S Oscillator GND RT PWMD Pin


s SOP-8L TOP View VIN CS GND GATE 1 8 RT LD VDD PWMD Name VIN No. I / O 1 2 3 4 5 6 7 I I P O I I I


This pin is the input of an 15 – 450V li [ … ]

FP7171DR-G1 PDF File

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