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DRV110: Technical differences between DRV110 and discrete solenoid drivers

Shunnosuke Maki
Prodigy 320 points
Part Number: DRV110

Hi team,

I am a FAE, who is in charge of appliance. 

According to DS,"The solenoid current is ramped up fast to ensure opening of the valve or relay. After initial ramping, the solenoid current is kept at a peak value to ensure correct operation, after which the current is reduced to a lower hold level to avoid thermal problems and reduce power dissipation." and Figure 1. Solenoid Current, EN, and PWM vs Time, I understood that DRV110 has effective advantages against discrete drivers.

but I have to propose DRV110 and describe technical reasons and pros. and cons. in detail to customers.

what is the important functions of DRV110 to achieve those advantages above?

BRs,

Maki

  • 0
    TI__Mastermind 24615 points

    Hi,

    DRV110 supports PWM and current control feedback loop. If customer use simple discreate ON/FF only, changing to DRV110 could bring system level benefit.

    Peak an hold control by PWM provide lower system power as you described. this is main reason customer chose DRV110. If current level and supply voltage higher, saving power is a lot. Current control can keep targeted peak and hold current level even if supply voltage changes, coil resistance shift. This is also advantage of DRV110.

    If you are looking for foil set to promote to customer, please contact to me directly. 

    Thanks,

    regards

    Shinya