LD8116QL

07/15/2020

1

Leadtrend Technology Corporation

www.leadtrend.com.tw

LD8116QL-DS-00 July 2020

Flexible Dimming Solution by PWM / 0-10V / Potentiometer

REV. 00

General Description

The LD8116QL contains a processor which can convert

the three different inputs of dimmer type include DC

potential, PWM (Plus Width Modulation) signal and

potentiometer become a PWM signal output. It is easy to

provide the isolation dimming control that via opto-coupler

for smart LED lighting application.

The device features include wide input voltage from 15V to

56V, adjustable bias current source for potentiometer and

high precision LED dimming current.

The LD8116QL is the SOT-26 package to minimize the

PCB size as well as component counts.

Features



Wide VCC operating range



Low operation current



Precision dimmer type with

-

Voltage potential : 0/1V to 10V

-

PWM dimming: 500Hz to 10kHz

-

Potentiometer: 0 to 100k Ohm.



Adjustable bias current source of DIM pin



Clamp minimum duty 10% on OUT pin



Built in dimming to on/off function on DIM pin



Built in over temperature protection for Chip

Applications



Dimmable LED Power Supply



Dimming devices

Typical Application

LED+

LED-

GND

DIM

VCC

RPhoto

RL

RDIM

3V ~10V_P WM

0V

VR 100K

0 –10 V

0V

CDIM

100%

OUT

DIM

8.6V

1.5V

10%

5V

1. 26V

1.42V

Fig. 1 Application circuit