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參數資料
| 型號： | TMC239-LA |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | High Current Microstep Stepper Motor Driver with protection / diagnosis and SPI Interface |
| 中文描述： | 大電流微步驅動器，步進電機保護/診斷和SPI接口 |
| 文件頁數： | 7/21頁 |
| 文件大?。?/td> | 170K |
| 代理商： | TMC239-LA |
TMC239 DATA SHEET (V1.00 / Apr. 24th, 2003)
7
Copyright 2002, TRINAMIC Microchips GmbH
Serial interface word assignment
The SPI data word sets the current and polarity for both coils. By applying consecutive values,
describing a sine and a cosine wave, the motor can be driven in microsteps. Every microstep is
initiated by its own telegram. Please refer to the description of the analog mode for details on the
waveforms required.
Serial data word transmitted to TMC239
(MSB transmitted first)
Bit
Name
Function
Remark
11 MDA
10 CA3
9
CA2
8
CA1
7
CA0
6
PHA
5
MDB
4
CB3
3
CB2
2
CB1
1
CB0
0
PHB
mixed decay enable phase A
current bridge A.3
current bridge A.2
current bridge A.1
current bridge A.0
polarity bridge A
mixed decay enable phase B
current bridge B.3
current bridge B.2
current bridge B.1
current bridge B.0
polarity bridge B
“1” = mixed decay
MSB
LSB
“0” = current flow from OA1 to OA2
“1” = mixed decay
MSB
LSB
“0” = current flow from OB1 to OB2
Serial data word transmitted from TMC239
(MSB transmitted first)
Bit
Name
Function
Remark
11 0
10 0
9
8
7
6
5
4
3
2
1
0
always “0”
always “0”
always “0”
always “1”
overtemperature
“1” = chip off due to overtemperature
“1” = prewarning temperature exceeded
“1” = undervoltage on VS
3 PWM cycles with overcurrent within 63 PWM cycles
no PWM switch off for 14 oscillator cycles
no PWM switch off for 14 oscillator cycles
3 PWM cycles with overcurrent within 63 PWM cycles
3 PWM cycles with overcurrent within 63 PWM cycles
0
1
OT
OTPW temperature prewarning
UV
driver undervoltage
OCHS overcurrent high side
OLB
open load bridge B
OLA
open load bridge A
OCA
overcurrent bridge B low side
OCB
overcurrent bridge A low side
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