TC233A Capacitive Touch Sensor IC Single Channel SOT-23-6 TC233A

Product Overview

The TC233A, manufactured by Fine Made Microelectronics Group Co., Ltd., is a single-key capacitive touch sensor IC. It is designed specifically to replace traditional mechanical push-button switches with a more reliable, durable, and aesthetically clean touch interface.

Core Specifications

• Manufacturer: Fine Made Microelectronics Group Co., Ltd.

• Function: Single-key capacitive touch induction trigger chip.

• Operating Voltage: 2.3 V to 5.5 V.

• Standby Current: 1.5 µA (at 3 V).

• Package Type: SOT23-6L.

• Output Type: Open-drain, active-low output.

• Response Time: 46 ms.

Key Features

• High Stability: Built-in high-precision LDO, low-voltage reset, and de-bouncing circuitry ensure reliable performance and strong anti-interference capability, including an embedded common-mode interference removal circuit.

• User Modes: Offers selectable synchronization mode and hold mode.

• Protection: Automatically disables all functions for approximately 0.5 seconds upon power-up to allow the chip to stabilize.

• Timeout: Provides a maximum output duration of approximately 16 seconds (at VDD = 3.0 V).

Applications

• Portable Electronics: Ideal for products powered by button cells, dry batteries, or lithium batteries, such as Bluetooth headsets.

• Lighting: Commonly used for touch-controlled desk lamps and other household lighting applications.

• Consumer Appliances: Serves as a versatile touch-switch replacement for various AC-to-DC powered consumer products.