SLAU912 January 2024
This output stage is designed to output high current (100-mA) for applications such as motor control. The design uses a class AB amplifier output with a diode-and-resistor-based constant current biasing.
Figure 5-3 shows the schematic of the stage.
The power is disconnected to the high-current output stage by default. Refer to Table 3-4 for power connection information.
Header | Name | Function |
---|---|---|
J29 | AVDD ON |
Short 1-2 – Connect AVDD to the high-current output stage. Open – AVDD is disconnected from the high-current output stage (default). |
J32 | DAC VOUT ON |
Short 1-2 – Connect output of channel C of the DAC to the high-current output stage. Short 2-3 – Connect the high-current output stage input to the ground. Open – high-current output stage input is floating (default). |
J35 | AVSS ON |
Short 1-2 – Connect AVSS to the system. Open – AVSS is disconnected from the high-current output stage (default). |
J27 | LOAD |
Short 1-2 – Connect high current output of the system to the on-board resistive load. Open – The high current output stage is disconnected from the on-board resistive load (default). |