TMC2240 vs. TMC2209

Question

Hello, 
 should we use the TMC2240 or the TMC2209 for a new design? 
 I think that the TMC2240 with it's sleep mode has less current consumption than the TMC2209. 
 Because we need to drive a 2-phase stepper motor with 24 V and 500 mA only 3 times a day and the device should be driven by a battery is the TMC2240 the better choice? 
 Thanks!

BernhardDwersteg · Answer

Hi, yes, in this case the TMC2240 is the better choice, because it has the lower standby power and it has the choice of an SPI interface (in case you want to use the interface). 
 In case you have the choice to access a lower voltage in your system, like 5V, please also check out the TMC2300, a tiny 3*3mm&sup2; device. It is tailored to battery applications with up to 11V.

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TMC2240 vs. TMC2209