TTP223-BA6 Touch Sensor Controller SMD IC SOT-23-6
The TTP223-BA6 Touch Screen Controller SMD IC SOT-23-6 is a single-key capacitive touch detector in a compact SOT-23-6 package, providing a low-power, highly integrable solution for replacing mechanical push-buttons with touch pads in consumer and industrial products, featuring selectable output modes, on-board auto-calibration, and adjustable sensitivity via external capacitance or electrode geometry for robust human-touch detection across a wide supply range.
Features
- Single-key capacitive touch detector in SOT-23-6 package for minimal PCB footprint and surface-mount assembly compatibility.
- Wide operating voltage range of 2.0-5.5V for battery and regulated systems.
- Ultra-low standby current in low-power mode with typical 1.5uA and maximum 3.0uA at VDD=3V for long battery life.
- Fast and low-power response modes with typical response times of 60mS (fast mode) and 220mS (low power mode).
- Sensitivity adjustable by electrode size, panel thickness or external Cs (0–50pF) for flexible sensor designs.
- Output mode options via pads: direct mode or toggle mode selectable by TOG pad, and active-high/active-low selection via AHLB pad.
- CMOS push-pull Q output capable of sinking up to 8mA and sourcing up to 4mA (VDD=3V) for direct interfacing with logic or LED drivers.
- Built-in auto-calibration and power-on stable time to minimise false triggers and maintain long-term reliability.
PINOUT
Specifications
Absolute Maximum Ratings
| Parameter | Symbol | Conditions | Value | Unit |
|---|---|---|---|---|
| Operating Temperature | TOP | — | -40 ~ +85 | °C |
| Storage Temperature | TSTG | — | -50 ~ +125 | °C |
| Power Supply Voltage | VDD | Ta = 25°C | VSS-0.3 ~ VSS+5.5 | V |
| Input Voltage | VIN | Ta = 25°C | VSS-0.3 ~ VDD+0.3 | V |
| Human Body Mode (ESD) | ESD | — | 4 | KV |
* VSS symbolizes the system ground.
Note: for full electrical specifications, please check the datasheet document down below.
Applications
- Touch-button replacement for consumer electronics and small appliances such as remote controls, toys, and household gadgets.
- Battery-powered devices and wearables requiring ultra-low standby current and compact SMD packaging.
- Human-machine interfaces for industrial controls, instrumentation and smart sensors.
- LED on/off or mode switching, wake-up inputs and basic user controls in embedded systems.
- Low-cost capacitive keypad implementations and retrofit replacements for mechanical switches.
Note: you can find steps and guide on different modes in the datasheet document.
Package Contents
- 1x TTP223-BA6 Touch Sensor Controller SMD IC SOT-23-6
Documents
| Datasheet | TTP223-BA6 |
| CAD Files | Download |
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