Configuration

This guide covers all configuration options available for the TLE92466ED driver.

Global Configuration

Basic Global Setup

```cpp tle92466ed::GlobalConfig global_config; global_config.crc_enabled = true; global_config.spi_watchdog_enabled = true; global_config.clock_watchdog_enabled = true; global_config.vio_5v = false; // false = 3.3V, true = 5.0V global_config.vbat_uv_voltage = 4.0f; // UV threshold in volts global_config.vbat_ov_voltage = 41.0f; // OV threshold in volts global_config.spi_watchdog_reload = 1000;

driver.ConfigureGlobal(global_config); ```text

CRC Configuration

cpp driver.SetCrcEnabled(true); // Enable CRC checking (recommended) cpp

  • Enabled: All SPI frames include CRC-8 (SAE J1850) for error detection
  • Disabled: No CRC checking (faster, but less reliable)

VBAT Thresholds

```cpp // High-level API (recommended) driver.SetVbatThresholds(4.0f, 41.0f); // UV=4V, OV=41V

// Low-level API (direct register control) driver.SetVbatThresholdsRaw(25, 253); // Register values ```cpp

Threshold Range: 0V to ~41.4V (calculated as register_value * 0.16208V)

Channel Configuration

Basic Channel Setup

```cpp tle92466ed::ChannelConfig config; config.mode = tle92466ed::ChannelMode::ICC; config.current_setpoint_ma = 1500; // 1.5A config.slew_rate = tle92466ed::SlewRate::MEDIUM_2V5_US; config.diag_current = tle92466ed::DiagCurrent::I_80UA; config.open_load_threshold = 3; // 3/8 threshold

driver.ConfigureChannel(tle92466ed::Channel::CH0, config); ```cpp

Channel Modes

ICC Mode (Integrated Current Control)

cpp config.mode = tle92466ed::ChannelMode::ICC; cpp

  • Purpose: Precise current regulation with 15-bit resolution
  • Use Case: Solenoids, valves requiring constant current
  • Features: Automatic current regulation, PWM-based control

Direct Drive Modes

```cpp // SPI-controlled on-time config.mode = tle92466ed::ChannelMode::DIRECT_DRIVE_SPI;

// External pin control config.mode = tle92466ed::ChannelMode::DIRECT_DRIVE_DRV0; config.mode = tle92466ed::ChannelMode::DIRECT_DRIVE_DRV1; ```cpp

  • Purpose: Direct control via SPI or external pins
  • Use Case: Simple on/off control, external timing

Free-Running Measurement

cpp config.mode = tle92466ed::ChannelMode::FREE_RUN_MEAS; cpp

  • Purpose: Continuous current sensing without output control
  • Use Case: Diagnostics, current monitoring

Current Settings

```cpp // Single channel mode (0-2000 mA) driver.SetCurrentSetpoint(tle92466ed::Channel::CH0, 1500); // 1.5A

// Parallel mode (0-4000 mA) driver.SetCurrentSetpoint(tle92466ed::Channel::CH0, 3000, true); // 3A ```cpp

Current Range:

  • Single channel: 0-2000 mA (1.5A typical continuous, 2.0A max)
  • Parallel mode: 0-4000 mA (2.7A typical continuous, 4.0A max)
  • Resolution: 15-bit (0.061mA per LSB single, 0.122mA parallel)

PWM Configuration

```cpp // High-level API (recommended) driver.ConfigurePwmPeriod(tle92466ed::Channel::CH0, 100.0f); // 100 µs period

// Low-level API (direct control) driver.ConfigurePwmPeriodRaw(tle92466ed::Channel::CH0, 100, // mantissa 3, // exponent false); // low_freq_range ```cpp

PWM Period Range: ~0.125 µs to ~32.64 ms

Dither Configuration

```cpp // High-level API (recommended) driver.ConfigureDither(tle92466ed::Channel::CH0, 50.0f, // 50 mA amplitude 1000.0f, // 1000 Hz frequency false); // not parallel mode

// Low-level API (direct control) driver.ConfigureDitherRaw(tle92466ed::Channel::CH0, 100, // step_size 10, // num_steps 5); // flat_steps ```text

Dither Amplitude: 0-1800 mA (configurable)

Slew Rate

cpp config.slew_rate = tle92466ed::SlewRate::SLOW_1V0_US; // 1.0 V/µs (low EMI) config.slew_rate = tle92466ed::SlewRate::MEDIUM_2V5_US; // 2.5 V/µs (standard) config.slew_rate = tle92466ed::SlewRate::FAST_5V0_US; // 5.0 V/µs (fast) config.slew_rate = tle92466ed::SlewRate::FASTEST_10V0_US; // 10.0 V/µs (maximum) cpp

Parallel Operation

Enabling Parallel Mode

```cpp // Pair channels 0 and 3 driver.SetParallelOperation(tle92466ed::ParallelPair::CH0_CH3, true);

// Pair channels 1 and 2 driver.SetParallelOperation(tle92466ed::ParallelPair::CH1_CH2, true);

// Pair channels 4 and 5 driver.SetParallelOperation(tle92466ed::ParallelPair::CH4_CH5, true); ```cpp

Parallel Pairs:

  • CH0/CH3: Doubles current capability (up to 4A)
  • CH1/CH2: Doubles current capability (up to 4A)
  • CH4/CH5: Doubles current capability (up to 4A)

Note: When in parallel mode, set current with parallel_mode = true parameter.

Default Values

Global Defaults

  • CRC: Enabled
  • SPI Watchdog: Enabled
  • Clock Watchdog: Enabled
  • VIO: 3.3V mode
  • VBAT UV: ~4V
  • VBAT OV: ~41V

Channel Defaults

  • Mode: ICC
  • Current: 0 mA
  • Slew Rate: MEDIUM_2V5_US
  • Diagnostic Current: I_80UA
  • Open Load Threshold: 3/8

Next Steps

Navigation ⬅️ Platform Integration | Next: Examples ➡️ | Back to Index