JAJSKT7B January 2021 – July 2024 TMUX7219-Q1
PRODUCTION DATA
The application shown in Figure 8-1 demonstrates how to generate a ±12V PWM signal that is created by toggling the TMUX7219-Q1. This PWM signal generated by the EVSE on the control pilot line signals to the car the available current of the charger, and the car will respond with a charging status. This handshake results in a safe method for supplying power to vehicle. The TMUX7219-Q1 can support 1.8V logic signals on the control input, allowing the device to interface with low logic controls of an FPGA or MCU. The TMUX7219-Q1 can be operated without any external components except for the supply decoupling capacitors. The select pin has an internal pull-down resistor to prevent floating input logic. All inputs to the switch must fall within the recommend operating conditions of the TMUX7219-Q1 including signal range and continuous current. For this design with a positive supply of 12V on VDD, and negative supply of −12V on VSS, the signal range can be 12V to −12V. The max continuous current (IDC) can be up to 330mA as shown in Section 5.4 for wide-range current measurement.