SNOSDA3G June 2020 – February 2025 TLV9020 , TLV9021 , TLV9022 , TLV9024 , TLV9030 , TLV9031 , TLV9032 , TLV9034
PRODMIX
The TLV902x features an open-drain (also commonly called open collector) sinking-only output stage enabling the output logic levels to be pulled up to an external voltage from 0V up to 5.5V, independent of the comparator supply voltage (VS). The open-drain output also allows logical OR'ing of multiple open drain outputs and logic level translation. TI recommends setting the pull-up resistor current to between 100uA and 1mA. Lower pull-up resistor values helps increase the rising edge risetime, but at the expense of increasing VOL and higher power dissipation. The risetime is dependant on the time constant of the total pull-up resistance and total load capacitance. Large value pull-up resistors (>1MΩ) creates an exponential rising edge due to the RC time constant and increases the risetime.
Unused open drain outputs must be left floating, or can be tied to the V- pin if floating pins are not allowed. While an individual output can typically sink up to 125mA, the total combined current for all channels must be less than 200mA.