Part Number:TPS25942L
Hi!
Help me please with current monitoring throw TPS25942L power switch. Vin is 6V, Rlim = 60,4 kOhms, Rimon = 18 kOhms. I connected to the output of the switch 13 W 15 Ohm resistor, so output current is approximately 0,4 A. Rimon is connected to the ADS7952 ADC (12-bit). I calculated that Vimon at 0,4 load current must be 0,389 V but multi-meter shows 0 V and ADC return me zero value. In parallel to the ADC input I connected RC-filter with 50 Ohms resistor and 150 pF capacitor. Maybe somebody can helps me?