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參數(shù)資料
| 型號： | 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)： | 15/21頁 |
| 文件大小： | 170K |
| 代理商： | TMC239 |
TMC239 DATA SHEET (V1.00 / Apr. 24th, 2003)
15
Copyright 2002, TRINAMIC Microchips GmbH
Oscillator capacitor
The PWM oscillator frequency can be set by an external capacitor. The internal oscillator uses a 28k
resistor to charge / discharge the external capacitor to a trip voltage of 2/3 Vcc respectively 1/3 Vcc. It
can be overdriven using an external CMOS level square wave signal. Do not set the frequency higher
than 100kHz and do not leave the OSC terminal open! The two bridges are chopped with a phase shift
of 180 degrees at the positive and at the negative edge of the clock signal.
1
f
OSC
×
m
f
OSC
:
PWM oscillator frequency
C
OSC
:
Oscillator capacitor in nF
[nF]
C
40
OSC
≈
Table of oscillator frequencies
f
OSC
typ. C
OSC
16.7kHz
20.8kHz
25.0kHz
30.5kHz
36.8kHz
Please remark, that an unnecessary high frequency leads to high switching losses in the power
transistors and in the motor.
1.5nF
1.2nF
1.0nF
820pF
680pF
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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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