TEXAS INSTRUMENTS TLC551/TLC555 CMOS Timer Control And Trigger Reference Voltage Generator

This is an specific variant of the circuit 'MOSFET Voltage Divider'. The circuit accomplishes power supply voltage division into three equal parts. The two intermediate nodes are then used as the control voltage and the trigger reference voltage. This voltage divider / reference voltage generator uses p-channel MOSFETs. There are six, not just three, MOSFETs. Two were used for each of the voltage chunks. I don't have the data about the MOSFET parameters. However, the division will be into three equal parts so no hard values are necessary for creating an equivalent circuit. The MOSFET parameters were left in the default values. To some extent they can be arbitrarily modified, as long as all the MOSFETs are matched the output voltages will be at one-third and two-thirds of the supply voltage. However, it should be noted that the current drawn depends on the power supply voltage and the properties of the MOSFETs. Note: Q1 and Q2, Q3 and Q4, Q5 and Q6 may be using the same well/tub for simplification so the "substrate"/'body" of Q1, Q3 and Q5 are connected to the drains (which are connected to their "substrate"/"body") of Q2, Q3 and Q6 respectively.