S912ZVML64 HGx and LGx drive current

[Nicolas2Vemuri]

where to find drive current of S912ZVML64 HGx and LGx pins，sink current and source current？

[danielmartynek]

Hi,

The concept of the HS drivers is shown in the RM, Section 18.5.1 FET Pre-Driver Details along with some calculations of I_out.

.

The current depends on the selected slew rate (GSRCHS[2:0]).

Table E-1 specifies the HG/LG turn on (turn off) time vs 10nF load at the fastest and slowest slew rate.

Regards,

Daniel

[Nicolas2Vemuri]

dear danielmartynek

thank you for your answer ，IOUT ~ IREF (R1/R2) k，are the ratio of the transistor sizes of T1 and T2 k=450 and the ratio of the resistors R1/R2=36  fixed ？

IOUTmax = 80uA*36*450 = 1.296 A，eg. VLS = 11 V，Rg_on resistance value shoud more than 11/1.296 = 8.487 ？

Regards

[danielmartynek]

Hello,

The calculation is correct, but it is rather theoretical.

The Turn off / Turn on time at a specific load is specified:

Regards,

Daniel

[Nicolas2Vemuri]

 dear danielmartynek 

S12ZVM-EFP Electronical Fuel Pump Reference Design，HD LINE 24Arms 34Apeak，How do I calculate？250W @12V