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L6472 데이터시트(PDF) 52 Page - STMicroelectronics

부품명 L6472
상세설명  dSPIN fully integrated microstepping motor driver
PDF  69 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6472 데이터시트(HTML) 52 Page - STMicroelectronics

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Programming manual
L6472
52/69
Doc ID 022729 Rev 1
The POW_SR bits set the slew rate value of the power bridge output:
The TQREG bit sets if the torque regulation (see Section 7.4) is performed through ADCIN
voltage (external) or the TVAL_HOLD, TVAL_ACC, TVAL_DEC and TVAL_RUN registers
(internal):
The TSW parameter is used by the current control system and it sets the target switching
period.
Any attempt to write the CONFIG register when the motor is running causes the command
to be ignored and the NOTPERF_CMD flag to rise (see Section 9.1.19).
Table 26.
Overcurrent event
OC_SD
Overcurrent event
1
Bridges shut down
0
Bridges do not shut down
Table 27.
Programmable power bridge output slew rate values
POW_SR [1..0]
Output Slew rate (1) [V/ìs] (1)
1.
See SRout_r and SRout_f parameters in Table 5 for details.
0
0
180
0
1
180
1
0
290
1
1
530
Table 28.
External torque regulation enable
TQREG
External torque regulation enable
0
Internal registers
1
ADC input
Table 29.
Switching period
TSW [4..0]
Switching period
0
0
0
0
0
4 µs (250 kHz)
0
0
0
0
1
4 µs (250 kHz)
0
0
0
1
0
8 µs (125 kHz)
1
1
1
1
1
124 µs (8 kHz)



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