EVAL6472PD STMicroelectronics, EVAL6472PD Datasheet - Page 22

• Manufacturer Part Number: EVAL6472PD
• Description: Power Management IC Development Tools L6472PD 7.0A w/SPI dSPIN 8 to 45V EVAL
• Manufacturer: STMicroelectronics
• Type: Motor / Motion Controllers & Driversr

Specifications of EVAL6472PD

• Product Category: Power Management IC Development Tools
• Rohs: yes
• Product: Evaluation Boards
• Tool Is For Evaluation Of: L6472PD
• Input Voltage: 8 V to 45 V
• Output Voltage: 8 V to 45 V
• Interface Type: SPI
• Output Current: 7 A
• For Use With: L6472

Functional description
6.4.1
6.5
6.6
22/68
Automatic full-step mode
When motor speed is greater than a programmable full-step speed threshold, the L6472
switches automatically to full-step mode (see
microstepping when motor speed decreases below the full-step speed threshold. The full-
step speed threshold is set through the FS_SPD register (see
Figure 7.
Absolute position counter
An internal 22-bit register (ABS_POS) keeps track of the motor motion according to the
selected step mode; the stored value unit is equal to the selected step mode (full, half,
quarter, etc.). The position range is from -2
Programmable speed profiles
The user can easily program a customized speed profile, independently defining
acceleration, deceleration, maximum and minimum speed values through the ACC, DEC,
MAX_SPEED and MIN_SPEED registers respectively (see
9.1.8).
When a command is sent to the device, the integrated logic generates the microstep
frequency profile that performs a motor motion compliant to speed profile boundaries.
All acceleration parameters are expressed in step/tick
expressed in step/tick; the unit of measurement does not depend on selected step mode.
Acceleration and deceleration parameters range from 2
(equivalent to 14.55 to 59590 step/s2).
Minimum speed parameter ranges from 0 to (2
step/s).
Maximum speed parameter ranges from 2
15610 step/s).
Automatic full-step switching
Doc ID 022729 Rev 2
-18
21
to (2
to +2
Figure
12
-
1
10
21
)•2
-1)• 2
-1 (µ) steps (see
7); the driving mode returns to
-24
2
and all speed parameters are
-40
step/tick (equivalent to 0 to 976.3
-18
to (2
step/tick (equivalent to 15.25 to
Section
Section
12
-2)•2
9.1.5, 9.1.6,
Section
-40
9.1.9).
step/tick2
9.1.1).
9.1.7
L6472
and