參數(shù)資料
型號(hào)： TMC249A
廠商： Electronic Theatre Controls, Inc.
英文描述： High Current Microstep Stepper Motor Driver with sensorless stall detection, protection / diagnostics and SPI Interface
中文描述： 大電流微步步進(jìn)電機(jī)驅(qū)動(dòng)器，帶有傳感器的失速檢測(cè)，保護(hù)/診斷和SPI接口
文件頁(yè)數(shù)： 18/25頁(yè)
文件大?。?/td> 219K
代理商： TMC249A
TMC249 / TMC249A DATA SHEET (V2.02 / Aug 12th, 2005)
18
Copyright 2005, TRINAMIC Motion Control GmbH & Co KG
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
×
μ
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
44.6kHz
Please remark, that an unnecessary high frequency leads to high switching losses in the power
transistors and in the motor. For most applications a chopper frequency slightly above audible range is
sufficient. When audible noise occurs in an application, especially with mixed decay continuously
enabled, the chopper frequency should be two times the audible range.
1.5nF
1.2nF
1.0nF
820pF
680pF
560pF
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TMC249-A 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 Sensorless Stall D e t e c t i o n ,P rotection / Diagnosis and SPI Interface
TMC249A-LA 制造商:Trinamic 功能描述:IC BRIDGE DRIVER SPI/ANLG 32QFN
TMC249A-SA 制造商:Trinamic 功能描述:STEPPER MOTOR DRIVER SMD SO-28 制造商:Trinamic 功能描述:STEPPER MOTOR DRIVER, SMD, SO-28 制造商:Trinamic 功能描述:IC MOTOR DRIVER, FULL BRIDGE, 1mA SOIC-28; Motor Type:Full Bridge; No. of Outputs:8; Output Current:1mA; Output Voltage:34V; Driver Case Style:SOIC; No. of Pins:28; Supply Voltage Min:3V; Supply Voltage Max:5.5V; MSL:MSL 2 - 1 year ;RoHS Compliant: Yes
TMC249-EVAL 制造商:Trinamic 功能描述:EVALUATION BOARD FOR TMC249
TMC249-HVHR 制造商:TRINAMIC 制造商全稱:TRINAMIC 功能描述:Evaluation Board for TMC249 with High Voltage and High Resolution
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