Industry Overview
With the increasing demand for smart home appliances and cost optimization, traditional control panel solutions face numerous challenges in material costs, design complexity, and development cycles. Previously, achieving touch and display functionality required the use of separate touch MCUs and display drivers, resulting in high material costs, complex PCB layouts, and more cumbersome software development.
In this context, Chipone has launched an integrated touch display control solution, utilizing the AiP1647 single-chip to achieve both touch detection and LED display driving functions, redefining the design standards for home appliance control panels. This solution offers a highly competitive option for appliance manufacturers due to its high integration, low cost, and ease of development.
Overall Solution
This solution builds a complete touch display control system centered around the AiP1647. This chip innovatively integrates 8-channel high-precision touch detection with multi-segment LED display driving into a single chip, using a single-wire communication protocol that requires only one signal line to complete touch parameter configuration, status reading, and display control tasks.
Compared to traditional dual-chip architectures, the AiP1647 significantly optimizes system costs and simplifies circuit board layout through its highly integrated design. The chip supports 10-segment 7-digit or 13-segment 4-digit common cathode LED displays, with 8 levels of brightness adjustment, and parameters such as touch sensitivity and debounce counts can be flexibly configured via software.
The solution adopts a modular design, integrating the touch detection system, display driver module, and single-bus communication interface to achieve efficient data interaction with the main MCU. By streamlining peripheral circuits and optimizing system structure, this solution provides a one-stop, highly reliable complete solution for various home appliance panels.
Solution Features
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Single chip replaces the “touch MCU + display driver” dual-chip solution, significantly reducing BOM costs.
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Flexible display modes, supporting 4-7 digit, 10-13 segment LED displays.
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Built-in display RAM, supporting both automatic address increment and fixed address writing modes.
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8 levels of adjustable display brightness to meet different brightness requirements.
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8 touch key channels, supporting simultaneous multi-key detection.
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Touch threshold, debounce counts, and noise values can all be configured via software.
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Built-in maximum key press duration of 20 seconds for anti-mispress protection.
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Single-bus communication, requiring only one signal line for all data transmission, saving valuable MCU IO resources.
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Simplified peripheral circuits, requiring only a few passive components.
Typical Application Diagram
Typical Application Circuit Diagram of AiP1647
PCB Diagram of AiP1647 Demo Board
Application Fields
LED display panels and touch button applications, such as fryers, microwaves, induction cookers, water heaters, fans, and other home appliances.
Chip Resources
The specific parameters of the Chipone AiP1647 are shown in the table below (swipe left and right to view details):
Conclusion
The AiP1647 offers a highly competitive solution for cost-sensitive applications with its unique “touch + display” dual-in-one architecture. For more product information, please contact our authorized distributors or sales engineers.
About Chipone
Founded in 2004, Wuxi Chipone Electronics Co., Ltd. is a high-tech enterprise focused on integrated circuit design, testing, solution development, sales, and service. It is recognized by the Ministry of Industry and Information Technology as an integrated circuit design enterprise and is a key integrated circuit design enterprise encouraged by the state. The product range includes thousands of products across multiple series such as MCU, LCD display, LED display, general logic, signal chain, motor & gate drivers, power devices, power supplies, audio, remote controls, communication, and supporting products, covering various fields including consumer electronics, network communication products, industrial equipment, new energy, and automotive electronics.
Copywriter: Deng Tingyu, Zheng Mingming
Editor: Qian Chen
Proofreader: Cai Jianan
Reviewer: Chen Feng
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