Hx8872-c - Datasheet ((free))
The Himax HX8872-C is a specialized Timing Controller (T-CON) and display driver IC designed by Himax Technologies
. It serves as the critical bridge between standard video processors and TFT-LCD flat panels used in televisions, tablets, and automotive monitors. This article provides a comprehensive overview of the
based on typical datasheet parameters, hardware architecture, and integration guidelines. 🛠️ Key Technical Specifications
datasheet highlights several operational and electrical specifications tailored for power-sensitive and high-speed display modules: Specification Manufacturer Himax Technologies Display Type TFT-LCD Driver / Timing Controller Supported Resolution Up to HD (1366 x 768) Package Options TQFP-64 / QFN-48 Core Supply Voltage 2.3V to 3.6V (3.3V typical) Output Voltage Range 10V to 40V (for gate driving) Clock Frequency 30 MHz to 115 MHz Typical Interfaces LVDS or MLVDS / SPI Operating Temperature -20°C to +85°C 🧠 Core Architecture and Features
integrates multiple advanced image processing and panel-driving technologies into a single silicon die. 1. Advanced Image Processing
Over-Drive Technology: Actively minimizes motion blur and ghosting by accelerating liquid crystal response times during rapid color transitions.
Content Adaptive Backlight Control (CABC): Analyzes the on-screen image content to dynamically adjust the panel's backlight. This drastically reduces power consumption while maintaining perceived image brightness.
Color Depth Management: Features a 6-bit + Hi-FRC (Frame Rate Control) or true 8-bit color processing workflow to deliver smooth, high-fidelity gradients. 2. High-Speed Data Interface hx8872-c datasheet
The chip supports standard Low-Voltage Differential Signaling (LVDS) or Mini-LVDS.
These differential interfaces allow the IC to receive high-bandwidth video data with exceptional electromagnetic interference (EMI) suppression. 3. Integrated Power Management
The device incorporates built-in level shifters and shift registers.
By converting low-voltage logic control signals into the high voltages (up to 40V) required to open and close thin-film transistors, it eliminates the need for external secondary driver ICs. 🔌 Typical Application Circuit Overview To properly integrate the
into a PCB design or troubleshoot an existing display inverter board, engineers should account for the following discrete functional blocks: Power Management Block
A clean, stable power supply is required. Decoupling capacitors (typically 0.1µF and 10µF) must be placed as close as possible to the VDDcap V sub cap D cap D end-sub pins to filter out high-frequency switching noise. Microcontroller / Timing Interface
The timing generation block requires a high-quality clock source. Communication lines, such as SPI (Serial Peripheral Interface), are used for initial configuration, register mapping, and setting the operating modes of the driver. Signal Processing and Output Stage The Himax HX8872-C is a specialized Timing Controller
The incoming video stream goes through internal timing manipulation to sync properly with the physical grid of the display glass. From there, the output stage drives both source lines and gate lines on the display. 📋 Common Use Cases The highly integrated nature of the
makes it a staple component in mid-sized electronic visual outputs:
Automobile Displays: Deployed in navigation heads and digital dashboards where high temperature tolerance (-20°C to 85°C) is mandatory.
Industrial Control Panels: Used heavily in factory HMIs (Human-Machine Interfaces) due to its reliability and immunity to power fluctuations.
Consumer Electronics: Found in HD televisions, medical monitors, and portable testing equipment. ⚠️ Important Sourcing Notes Because the
is an older, specialized component, procurement requires caution:
Supply Limitations: Market stock for this specific chip is often limited, leading to inflated prices or long lead times. What is the HX8872-C
Counterfeit Risks: Some third-party broker platforms flag this component with a heightened risk of counterfeit or refurbished parts.
To secure genuine parts, purchasing should be restricted to verified global supply networks or official franchised distributors like Win Source Electronics or Jotrin Electronics.
If you are currently drafting a PCB schematic or actively troubleshooting a display hardware fault, let me know:
The exact package type you are working with (TQFP-64 or QFN-48)? The input video protocol your main processor is outputting?
Whether you are dealing with a blank screen or visual artifacting?
I can provide targeted peripheral component values or specific terminal voltage checks to assist you further. HX8872-C Himax – Price, Stock & Datasheet - WIN SOURCE
3.1 Initialization Sequence Example
A typical initialization sequence from the datasheet would look like:
1. Hardware RESET (pull low for 10ms, then high)
2. Delay 120ms
3. Send 0x11 (Sleep Out)
4. Delay 120ms
5. Send 0x36, 0x00 (Normal orientation)
6. Send 0x3A, 0x05 (16-bit RGB565)
7. Send 0x29 (Display ON)
8. Send pixel data via 0x2C
What is the HX8872-C?
The HX8872-C is a TFT-LCD panel timing controller (TCON) or a display driver IC, often used in small to medium-sized LCD panels (e.g., 3.5″ to 7″). It’s typically produced by Himax Technologies (common “HX” prefix). This IC converts incoming video data (like RGB, LVDS, or MIPI) into signals that drive column and row drivers of an LCD.
Issue C: Incorrect colors
- Cause: RGB ordering mismatch (RGB vs BGR) or bit-shift.
- Fix: Reprogram registers
0x21and0x22to remap the color channels.
2. Recommended Operating Conditions
| Parameter | Min | Typ | Max | Unit | |-----------|-----|-----|-----|------| | VDDI (core logic) | 1.65 | 1.8/2.8 | 3.3 | V | | VCI (analog/booster) | 2.5 | 2.8 | 3.6 | V | | VIO (I/O) | 1.65 | 1.8/2.8 | 3.3 | V |