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General| Brand | ST |
|---|---|
| Model | L6470H |
| Category | Computer Hardware |
| Language | English |
Defines voltage, current, and temperature limits for safe operation.
Specifies voltage, temperature, and current ranges for reliable device operation.
Covers general parameters like supply current and thermal limits.
Details charge pump oscillator frequency and current characteristics.
ON resistance and leakage current for power switches.
Covers rise/fall times, dead time, and blanking time of power stages.
Logic input/output levels, oscillator, and SPI timing specifications.
Characteristics for SW input, PWM, overcurrent, and standby modes.
Describes the 3V regulator output and ADC resolution/sampling.
Detailed pin assignments, types, and functional descriptions.
Illustrates a typical application circuit for bipolar stepper motor control.
Describes the device state and conditions after power-up.
Covers TTL/CMOS compatibility and open drain outputs.
Explains the charge pump for driving high-side MOSFETs.
Details step division up to 1/128 resolution.
Describes the 22-bit register for absolute motor position tracking.
User-defined acceleration, deceleration, and speed settings.
Overview of constant speed, positioning, motion, and stop commands.
Internal and external clock source options and configuration.
How overcurrent events are detected, flagged, and handled.
Protection against low motor supply voltage.
Thermal warning and shutdown mechanisms.
Methods for resetting the device and entering standby mode.
Functionality of the SW pin for external control input.
Programmable slew-rate, dead-time, and blanking-time settings.
ADC input and output register for conversion results.
Description of the 3V regulator and its external use.
Operation modes for the BUSY/SYNC output pin.
Conditions that trigger the FLAG output pin.
How PWM generates sinewaves for stepper motor phases.
Detects motor stall without external sensors.
Improves current accuracy at very low motor speeds.
Compensates for back-EMF variations during acceleration/deceleration.
Adapts to motor supply voltage variations for consistent performance.
Compensates for resistance changes due to temperature.
Details the SPI communication protocol, timings, and daisy-chaining.
Detailed map and description of device registers and status flags.
Current motor absolute position register.
Current electrical position of the motor.
Stores a mark position for the motor.
Current motor speed in step/tick.
Speed profile acceleration setting.
Speed profile deceleration setting.
Maximum speed limit for speed profiles.
Minimum speed limit for speed profiles.
Full step speed threshold setting.
Voltage amplitude regulation for PWM modulators.
Speed for BEMF compensation slope change.
BEMF compensation slope for low speeds.
BEMF compensation slope during acceleration.
BEMF compensation slope during deceleration.
Thermal drift compensation factor for winding resistance.
Result of analog-to-digital conversion.
Overcurrent detection threshold setting.
Stall detection threshold setting.
Selects the microstepping mode.
Enables or masks alarm conditions for the FLAG output.
Configuration settings for clock, voltage compensation, and slew rate.
Provides status flags for device operation and errors.
Overview and command codes for motor control and configuration.
How the host microcontroller controls the L6470 via commands.
No operation command.
Sets a register value.
Reads a register value.
Starts motor motion at a specified speed and direction.
Switches device to step clock mode.
Moves the motor a specified number of microsteps.
Moves the motor to an absolute position via the shortest path.
Moves motor to absolute position, forcing direction.
Moves motor at speed until condition or external switch event.
Motion until switch release, then HardStop.
Moves the motor to the HOME position.
Moves the motor to the MARK position.
Resets the absolute position register to zero.
Resets the device to power-up conditions.
Stops the motor with a deceleration phase.
Stops the motor immediately.
Disables power bridges after deceleration.
Immediately disables power bridges.
Returns the status register value and resets warning flags.
Provides detailed mechanical dimensions for the HTSSOP28 package.
Logs changes and revisions made to the document over time.
