L6470H STMicroelectronics, L6470H Datasheet - Page 22

• Manufacturer Part Number: L6470H
• Description: Motor / Motion / Ignition Controllers & Drivers 8 - 45V 7.0A 1/128 Microstepping SPI
• Manufacturer: STMicroelectronics
• Type: Micro Stepping Motor Driverr
• Series: -r

Specifications of L6470H

• Product: Stepper Motor Controllers / Drivers
• Operating Supply Voltage: 8 V to 45 V
• Supply Current: 0.5 mA
• Mounting Style: SMD/SMT
• Package / Case: HTSSOP-28
• Operating Temperature: - 40 C to + 125 C
• Applications: Stepper Motor Driver, 2 Phase
• Evaluation Tools: *
• Number Of Outputs: 1
• Current - Output: 3A
• Voltage - Load: 8 V ~ 45 V
• Voltage - Supply: 3.3V, 5V
• Mounting Type: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Functional description
6.7
6.7.1
6.7.2
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Motor control commands
The L6470 can accept different types of commands:
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For detailed command descriptions refer to
Constant speed commands
A constant speed command produces a motion in order to reach and maintain a user-
defined target speed starting from the programmed minimum speed (set in MIN_SPEED
register) and with the programmed acceleration/deceleration value (set in ACC and DEC
registers). A new constant speed command can be requested anytime.
Figure 7.
Positioning commands
An absolute positioning command produces a motion in order to reach a user-defined
position that is sent to the device together with the command. The position can be reached
performing the minimum path (minimum physical distance) or forcing a direction (see
Figure
Performed motor motion is compliant to programmed speed profile boundaries
(acceleration, deceleration, minimum and maximum speed).
Note that with some speed profiles or positioning commands, the deceleration phase can
start before the maximum speed is reached.
constant speed commands (Run, GoUntil, ReleaseSW),
absolute positioning commands (GoTo, GoTo_DIR, GoHome, GoMark),
motion commands (Move),
stop commands (SoftStop, HardStop, SoftHiz, HardHiz).
8).
Constant speed commands examples
Doc ID 16737 Rev 2
Section 9.2 on page
52.
L6470