The input terminal interface features a standard 4-pin or 6-pin wiring harness configuration. The interface can be mapped as follows: Wire Color Input Threshold Range Functional Description Main DC Power Input from the host power supply board. ENA / ON/OFF
The GYD-9E module features a 6-pin connector for all power, enable, and control signals. Understanding this pinout is critical for connecting the driver to a power supply and a control board.
flowchart TD A[DC Input<br>10-30V] --> B[Input Capacitor] B --> C[Controller IC (e.g., DF6113)] C --> D[Switching MOSFET<br>(e.g., PTD 11N20C)] D --> E[Inductor] E --> F[Output Capacitor] F --> G[LED Load] H[Current Sense Resistor] --> I[Feedback Loop] I --> C G --> H H --> J[GND] gyd-9e datasheet
The driver coordinates with an external switching transistor, such as the AO3401A MOSFET or equivalent power transistors, to manage high-efficiency current conversion.
[ Power Switch: ME15N10 MOSFET ] | [ VIN: 10-30V ] ---> [ Inductor ] + ---> [ Fast Diode ] ---> [ VOUT: 7.5-9.5V ] | | [ DF6113 PWM ] <----------------------- [ Sense Resistors ] (Control Loop) (Feedback Pin) (R4 / R7) The input terminal interface features a standard 4-pin
Identify the line responsible for brightness commands. 4. Wiring the Module
The signal wire that tells the backlight when to turn on. Understanding this pinout is critical for connecting the
The board features two independent output ports. This allows it to drive two separate LED strips simultaneously, which is a standard requirement for many 20-inch and 24-inch monitors that use "top and bottom" or "left and right" lighting arrays. Constant Current Output
The engine powering the GYD-9E is the constant current driver integrated circuit. This chip utilizes high-frequency pulse-width modulation (PWM) to step down or regulate voltage while locking down a fixed current output.
This part of the datasheet offers guidance on how to integrate the GYD-9E into a circuit or system, including typical application circuits and sometimes recommendations for PCB layout.
The designed to replace old, failing Cold Cathode Fluorescent Lamp (CCFL) inverters in LCD monitors and televisions ranging from 15 to 24 inches. Built as a highly efficient step-up (boost) Pulse Width Modulation (PWM) converter centered around the DF6113 controller integrated circuit (IC) , this board provides stable current control and highly flexible brightness management for DIY display repairs and custom display retrofits. Technical Specifications Summary Specification Details Core Controller IC DF6113 (Constant Current Boost PWM) Input Voltage Range ( VINcap V sub cap I cap N end-sub ) 10V to 30V DC Output Voltage Range ( VOUTcap V sub cap O cap U cap T end-sub ) 7.5V to 9.5V DC (Adapts dynamically to the LED load) Output Current Range ( IOUTcap I sub cap O cap U cap T end-sub ) 10mA to 1000mA (Configurable via surface-mount resistors) Supported Display Sizes 15-inch to 24-inch LCD panels Dimming Controls Analog Voltage or PWM Signal Board Dimensions Output Configuration Single shared cross-flow booster channel with dual ports Key Technical Explanations 1. Pinout Layout and Interface Definitions