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L6472PD 数据表(PDF) 3 Page - STMicroelectronics

部件名 L6472PD
功能描述  dSPIN fully integrated microstepping motor driver
Download  69 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L6472PD 数据表(HTML) 3 Page - STMicroelectronics

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L6472
Contents
Doc ID 022729 Rev 1
3/69
6.9
Overcurrent detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
6.10
Undervoltage lockout (UVLO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
6.11
Thermal warning and thermal shutdown . . . . . . . . . . . . . . . . . . . . . . . . . 27
6.12
Reset and standby . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
6.13
External switch (SW pin) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
6.14
Programmable DMOS slew rate, dead time and blanking time . . . . . . . . 28
6.15
Integrated analog-to-digital converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
6.16
Internal voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
6.17
BUSY\SYNC pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
6.17.1
BUSY operation mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
6.17.2
SYNC operation mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6.18
FLAG pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
7
Phase current control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
7.1
Predictive current control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
7.2
Auto-adjusted decay mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
7.3
Auto-adjusted fast decay during the falling steps . . . . . . . . . . . . . . . . . . . 34
7.4
Torque regulation (output current amplitude regulation) . . . . . . . . . . . . . . 35
8
Serial interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
9
Programming manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
9.1
Register and flag description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
9.1.1
ABS_POS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
9.1.2
EL_POS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
9.1.3
MARK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
9.1.4
SPEED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
9.1.5
ACC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
9.1.6
DEC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
9.1.7
MAX_SPEED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
9.1.8
MIN_SPEED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
9.1.9
FS_SPD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
9.1.10
TVAL_HOLD, TVAL_RUN, TVAL_ACC and TVAL_DEC . . . . . . . . . . . . 42
9.1.11
T_FAST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
9.1.12
TON_MIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
9.1.13
TOFF_MIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44


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