Other Parts Discussed in Thread: TPSI3050
Hi,
I am a Lead Engineer at Collins Aerospace, Bangalore. I am trying to optimize an existing circuit in my project (7000+ production per year) using TPSI3050-Q1 IC. I have an input current limitation of 16mA to the IC. The current drawn at the output, I_Aux_max will not exceed 4.5mA as per my applications. I tried to analyze the compatibility using the TPSI305x calculator available in the site. Since the output current available as well as the input current drawn depends on the value of R_PXFR selected, I tried to get the optimum value of R_PXFR using the calculator sheet. The problem is :
- a) If R_PXFR= 9.09kohm, then I_AUX_MAX = 2mA & I_VDDP = 9.10mA : This value of I_AUX_MAX is too less for my application
- b) If R_PXFR= 11kohm, then I_AUX_MAX = 6.09 mA & I_VDDP = 17.26 mA : This value of I_AUX_MAX is optimum for my application but the value of I_VDDP is more than what my circuit can source.
Since I need only 4.5mA for my application, I wanted to know what will be the value of I_VDDP which will be drawn by TPSI3050. Could you confirm that input current I_VDDP of TPSI3050 will not exceed 16mA for I_AUX_MAX = 4.5mA
Regards,
Shwetha P
Lead Engineer
Collins Aerospace
Wing B, North Gate Phase II,
Sy.No. 2/2, Venkatala Village, Yelahanka Hobli,
Bangalore - 560064, Karnataka, India
Phone No - 9480955015
