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TMC239

更新时间: 2024-11-25 07:04:39
品牌 Logo 应用领域
TRINAMIC 驱动
页数 文件大小 规格书
1页 460K
描述
Microstep Driver for External MOSFETs for up to 4A

TMC239 数据手册

  
POWER DRIVER FOR STEPPER MOTORS  
INTEGRATED CIRCUITS  
TMC239  
Microstep Driver  
for External MOSFETs  
for up to 4A  
MAIN CHARACTERISTICS  
INFO The TMC239 is a smart high current microstepping driver for  
bipolar stepper motors. It provides an SPI™ interface as well as  
the classical analog / digital control. A full set of protection and  
diagnostic features makes this device very rugged. It directly  
drives external MOSFETs for currents of up to 4A. (A list of  
compatible power MOSFETs is given within the datasheet.) This  
way it reaches an extremely high efficiency and allows driving  
of a high motor current without cooling measures even at high  
environment temperatures. With the new chip-scale QFN pack-  
age a 4A motor driver can be realized on the size of a stamp!  
• full protection and diagnostics  
• low power dissipation  
• 16 times microstepping via SPI,  
64 times using additional shift register,  
even more via analog control  
• mixed decay for smooth operation  
• programmable slope control for low EME  
• internal or external chopper clock  
• standby and shutdown mode  
INTERFACE • easy-to-use SPI™ interface  
• classical analog interface  
The high motor current makes this device ideal for miniaturized  
highly dynamic and high torque drive systems.  
ELECTRICAL • up to 4000 mA coil current (peak) with  
DATA  
just 4 external dual MOSFETS  
The evaluation can be done with the TMC249 as the only differ-  
ence is the additional stallGuard™ feature.  
• 7V to 34V motor supply (TMC239A),  
up to 60V using a few add. components  
• higher current / voltage using additional  
gate drivers  
• 3.3V or 5V operation for digital part  
PACKAGE • standard SO28 package  
• chip size QFN32 package  
• RoHS compliant  
TMC239  
C/CLK  
OSC  
PWM control  
&
Gate Driver  
IN A  
2x  
Coil A  
4 bit  
DACs  
IN B  
Step  
Control  
&
Diagnostics  
Current  
monitoring  
10 mm  
Motor  
SPI  
PWM control  
&
ERROR  
Gate Driver  
Coil B  
3.3 / 5V DC  
7..34V DC  
Temp / Volt  
protection  
ORDER CODE  
DESCRIPTION  
TMC239A-SA  
4A driver for external MOSFETs, SO28  
4A driver for external MOSFETs, QFN32  
TMC32NP, TMC32NP2, TMC34NP  
TMC239A-LA  
Related product:  
TMC428A-EVAL  
Evaluation board for TMC428, TMC246A and TMC249A with stallGuard™  
www.trinamic.com – for detailed information and datasheets  
13  

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