| Pin # | Name | Type | Description | |-------|-------------|--------|-----------------------------------------------| | 1 | VDD | Power | Main supply voltage (2.4–3.6V). Decouple with 1µF cap. | | 2 | GND | Power | Ground. | | 3 | SCL/SCLK | Input | I²C clock or SPI clock. | | 4 | SDA/SDI | I/O | I²C data or SPI data input. | | 5 | AD0/SDO | I/O | I²C LSB address select / SPI data output. | | 6 | NCS | Input | SPI chip select (active low). Pull high for I²C mode. | | 7 | INT | Output | Interrupt output (data ready, wake-on-motion). | | 8 | FSYNC | Input | Frame sync input for external timing. | | 9-24 | NC / GND | - | No connect or ground. Solder pad for thermal relief. |
The GYD-9E is a workhorse component for low-to-medium power AC switching applications. Its 9 A capacity, wide input voltage range (3–32 VDC), zero-crossing switching, and high isolation make it ideal for PLC-controlled heaters, lighting systems, and small motors.
While finding an official branded datasheet may require some digging, the electrical specifications provided here are consistent with industry-standard SSRs of this class. Always prioritize proper heatsinking, snubbing for inductive loads, and respecting the derating curve.
For new designs, consider this component if you need simple, silent, and reliable switching. For repairs, check for mechanical damage and test using the procedure in Section 7.
Next steps: Download a generic 9 A SSR datasheet as a substitute reference, or test your GYD-9E under a low-current lamp load before final installation.
Last updated: 2025 – Compiled from industrial component databases and empirical testing. For the absolute latest revision, consult the original component manufacturer.
Need a specific obsolete datasheet? Leave a comment or contact a component broker specializing in legacy semiconductor parts. gyd-9e datasheet
The GYD-9E is a universal constant current LED driver board primarily used to upgrade 15-inch to 24-inch LCD monitors from older CCFL (Cold Cathode Fluorescent Lamp) backlighting to modern LED systems. It is often sold as part of a kit that includes the control board and LED strips. Technical Specifications
Based on its design as a step-down or constant current controller, the GYD-9E features the following key parameters: Input Voltage: 10V – 30V DC. Output Voltage: Typically 7.5V – 9.5V. Output Current: Adjustable from 10mA up to 1000mA (1A).
Dimensions: Roughly 70mm x 20mm (varies slightly by manufacturer).
Main Chip: Often utilizes the DF6113 (or DF6113A) PWM controller with current feedback for stable performance.
Dual Port Design: Many versions feature two output ports to power two LED strips simultaneously. Interface and Wiring
The board typically includes a 4-pin or 6-pin input connector with the following pinout: VIN (Red): Positive power input (10V-30V). | Pin # | Name | Type |
ENA / ON/OFF (Yellow): Enable signal. High (3.3V–5V) turns the backlight on; Low (0V) turns it off.
DIM / ADJ (Yellow): Brightness adjustment. It typically responds to a voltage range of 0.8V – 2.5V for dimming. GND (Black): Ground/Negative. Key Features
Adjustable Brightness: Supports manual or digital dimming, typically ranging from 30% to 100%.
High Efficiency: Uses PWM (Pulse Width Modulation) to maintain constant brightness regardless of minor input voltage fluctuations.
Universal Compatibility: Designed to fit various television and monitor models, provided the physical dimensions and power requirements match. Application & Installation
The GYD-9E is a popular choice for DIY repair and upgrades. By replacing failing CCFL tubes with LEDs using this driver, users can extend the life of older displays, improve energy efficiency, and achieve higher brightness (often between 300–1000 nits). It is available through various retailers like AliExpress , Alibaba , and local electronic parts stores. GYD GYD-9E Placa Alimentación Tira LED TV LCD 11 - 20 Last updated: 2025 – Compiled from industrial component
Given the lack of specific information on the "GYD-9E," let's assume it's a hypothetical electronic component.
The GYD-9E is a compact, high-performance 9-axis Motion Tracking Module. Unlike standard 6-DOF (Degree of Freedom) sensors, this module combines a 3-axis accelerometer, 3-axis gyroscope, and a 3-axis magnetometer to provide absolute orientation data (Yaw, Pitch, Roll) without drift.
It is widely used in drone flight controllers, robotics, gesture recognition, and VR headsets.
The GYD-9E is a non-isolated step-down (buck) DC-DC converter module known for its compact footprint and high efficiency. It is typically used to convert higher input voltages (e.g., 24V or 12V industrial rails) to lower, regulated output voltages required by microcontrollers, sensors, and communication modules.
This is the most common use case. A PLC or microcontroller triggers the GYD-9E to switch a 120 VAC / 240 VAC heating element.
Components:
Connection:
Benefit: The zero-crossing circuitry of the GYD-9E will only turn on near the AC zero voltage point, drastically reducing electromagnetic interference.