HF-TLE92466ED Driver

C++20 driver for Infineon TLE92466ED Six-Channel Low-Side Solenoid Driver IC

📚 Table of Contents

1. Overview
2. Features
3. Quick Start
4. Installation
5. API Reference
6. Examples
7. Documentation
8. Contributing
9. License

📦 Overview

‍📖 📚🌐 Live Complete Documentation - Interactive guides, examples, and step-by-step tutorials

HF-TLE92466ED is a modern C++20 driver for the Infineon TLE92466ED Six-Channel Low-Side Solenoid Driver IC. The TLE92466ED provides six independent low-side outputs for controlling solenoids, valves, and other inductive loads with precision current regulation. Each channel supports up to 2A in single mode or 4A in parallel mode, with 15-bit resolution (0.061mA steps) for precise current control.

The driver uses a hardware-agnostic communication interface design, allowing it to run on any platform (ESP32, STM32, Arduino, etc.) with zero runtime overhead. It implements all major features from the TLE92466ED datasheet including Integrated Current Control (ICC), PWM frequency control, dither support, parallel channel operation, comprehensive diagnostics, and protection features.

✨ Features

• ✅ Six Independent Channels: Low-side outputs for solenoid/inductive load control
• ✅ Precision Current Control: 15-bit resolution (0.061mA steps), 0-2A single channel, 0-4A parallel mode
• ✅ Integrated Current Controller (ICC): Automatic current regulation with configurable PWM frequency
• ✅ Parallel Operation: Channel pairs (0/3, 1/2, 4/5) for doubled current capability
• ✅ Dither Support: Configurable amplitude and frequency for precise current shaping
• ✅ Comprehensive Diagnostics: Overcurrent, overtemperature, open load, short-to-ground detection
• ✅ Supply Monitoring: VBAT, VIO, and VDD voltage monitoring with configurable thresholds
• ✅ Hardware Agnostic: SPI interface for platform independence
• ✅ Modern C++20: Using tle::expected (polyfill for std::expected) for type-safe error handling without exceptions
• ✅ Zero Overhead: All functions noexcept, freestanding-compatible

🚀 Quick Start

#include "inc/tle92466ed.hpp"
#include "inc/tle92466ed_spi_interface.hpp"
 
// 1. Implement the SPI interface (see platform_integration.md)
class MySpi : public tle92466ed::SpiInterface<MySpi> {
    // ... implement required methods
};
 
// 2. Create driver instance
MySpi spi;
tle92466ed::Driver driver(spi);
 
// 3. Initialize and use
if (auto result = driver.Init(); !result) {
    // Handle error
    return;
}
 
driver.EnterMissionMode();
driver.SetChannelMode(tle92466ed::Channel::CH0, tle92466ed::ChannelMode::ICC);
driver.SetCurrentSetpoint(tle92466ed::Channel::CH0, 1500); // 1.5A
driver.EnableChannel(tle92466ed::Channel::CH0, true);

For detailed setup, see Installation and Quick Start Guide.

🔧 Installation

1. Clone or copy the driver files into your project
2. Implement the SPI interface for your platform (see Platform Integration)
3. Include the header in your code:

   #include "inc/tle92466ed.hpp"

4. Compile with a C++20 or newer compiler

For detailed installation instructions, see docs/installation.md.

📖 API Reference

Method	Description
Init()	Initialize the driver and hardware
EnterMissionMode()	Enter mission mode (enables channel control)
SetChannelMode()	Set channel operation mode (ICC, Direct Drive, etc.)
SetCurrentSetpoint()	Set current setpoint for a channel
EnableChannel()	Enable or disable a channel
GetChannelDiagnostics()	Get channel diagnostic information
GetAllFaults()	Get comprehensive fault report

For complete API documentation, see docs/api_reference.md.

📊 Examples

For ESP32 examples, see the examples/esp32 directory.

Detailed example walkthroughs are available in docs/examples.md.

📚 Documentation

For complete documentation, see the docs directory.

🤝 Contributing

Pull requests and suggestions are welcome! Please follow the existing code style and include tests for new features.

📄 License

This project is released into the Public Domain. You can use, modify, and distribute it freely without any restrictions.