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參數(shù)資料
| 型號(hào)： | TMC239 |
| 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(qū)動(dòng)器，步進(jìn)電機(jī)保護(hù)/診斷和SPI接口 |
| 文件頁數(shù)： | 6/21頁 |
| 文件大?。?/td> | 170K |
| 代理商： | TMC239 |
TMC239 DATA SHEET (V1.00 / Apr. 24th, 2003)
6
Copyright 2002, TRINAMIC Microchips GmbH
Using additional power drivers
For higher voltage and higher output current it is possible to add external MOSFET gate drivers. Both,
dedicated transistor drivers are suitable, as well as a circuit based on standard HCMOS drivers. It is
important to understand the function of dedicated gate drivers for N-channel transistors: Since the
chopping also can be stopped in open load conditions, the gate drive circuit for the upper transistors
should allow for continuous ON conditions. In the schematic below this is satisfied by attaching a weak
additional charge pump oscillator and pumping the VS up to the high voltage supply. Do not enable the
TMC239, before the gate driver capacitors are charged to an appropriate voltage. A current sensing
comparator in the VM line pulling down the VT pin by some 100mV on overcurrent can be added, if
required. Since the TMC239 senses switch-off of the transistor gates to ensure break-before-make
operation, the break before-make-delays can be increased by capacitive loading of its transistor drive
outputs. The capacitors CdHS and CdLS are charged / discharged with the nominal gate current. The
opposite output is not enabled, before the switching-off output has been discharged to 0.5V. Both
circuits do not show decoupling capacitors and further details.
High current, high
voltage MOS bridge
R
S
Coil
N
N
HA1
LA1
SRA
VT
TMC239
VS
small signal P-
MOS, e.g. SI1901
+15V
LS-
Driver
+V
M
e.g. 75V
HS-Driver
1μF
C
DHS
C
DLS
10nF
C-Pump
20kHz
ICM7555
to other
bridges
100R
10nF
opt.
1K
N
N
IR2101
15V
High voltage logic
level MOS bridge
R
S
Coil
N
N
P
P
HA1
LA1
SRA
VT
TMC239
VS
+V
S
+V
M
20..60V
C
DHS
C
DLS
1K
1/2 74HC244
on low side
+5V
1K
1/2 74HC244
on high side
VM-5.2V
1K
SLP
15K
set to 7 mA high-
side drive current
LM337
HV
120R
390R
ADJ
OUT
IN
55V low current
N-MOS
7..15V
100R
100R
GND
VCC
VCC
GND
/OE
/OE
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| TMC239-LA | High Current Microstep Stepper Motor Driver with protection / diagnosis and SPI Interface |
| TMC239-SA | High Current Microstep Stepper Motor Driver with protection / diagnosis and SPI Interface |
| TMC249A | High Current Microstep Stepper Motor Driver with sensorless stall detection, protection / diagnostics and SPI Interface |
| TMC249A-LA | High Current Microstep Stepper Motor Driver with sensorless stall detection, protection / diagnostics and SPI Interface |
| TMC249A-SA | High Current Microstep Stepper Motor Driver with sensorless stall detection, protection / diagnostics and SPI Interface |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TMC239_1 | 制造商:TRINAMIC 制造商全稱:TRINAMIC 功能描述:High current microstep stepper motor driver with protection, diagnostics and SPI Interface |
| TMC239A-LA | 制造商:TRINAMIC 制造商全稱:TRINAMIC 功能描述:Microstep Driver for External MOSFETs for up to 4A |
| TMC239A-SA | 制造商:Trinamic 功能描述:MICROSTEPPING MOTOR DRIVER SO-28 制造商:Trinamic 功能描述:MICROSTEPPING MOTOR DRIVER, SO-28 制造商:Trinamic 功能描述:MICROSTEPPING MOTOR DRIVER, SO-28; Motor Type:Stepper; No. of Outputs:8; Output Current:50mA; Driver Case Style:SOIC; No. of Pins:28; Supply Voltage Min:3V; Supply Voltage Max:5.5V; Operating Temperature Min:-25C; Operating ;RoHS Compliant: Yes |
| TMC239-LA | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:High Current Microstep Stepper Motor Driver with protection / diagnosis and SPI Interface |
| TMC239-SA | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:High Current Microstep Stepper Motor Driver with protection / diagnosis and SPI Interface |
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