TPA3112D1 25-W FILTER-FREE MONO CLASS-D AUDIO POWER AMPLIFIER With SPEAKER GUARDß„

The TPS3803 and TPS3805 families of supervisory circuits offer circuit initialization and timing supervision, mainly for digital signal processors (DSPs) and processor-based systems. The TPS3803G15 device features a fixed-sense threshold voltage (VIT) determined by an internal voltage divider, while the TPS3803-01 includes an adjustable SENSE input that can be configured using two external resistors. Besides the fixed sense threshold monitored at VDD, the TPS3805 devices also provide a second adjustable SENSE input.

The TPS3803 and TPS3805 series are essential components in ensuring the reliable operation of DSPs and microprocessor-based systems. These supervisory circuits are designed to monitor supply voltages and provide timely reset signals during power-up, power-down, and brown-out conditions. The TPS3803G15, with its fixed-sense threshold, is particularly useful in applications where a consistent voltage level is required for reliable operation, ensuring that the system does not enter an undefined state during voltage fluctuations.

In contrast, the TPS3803-01's adjustable SENSE input allows for greater flexibility in various applications. By configuring the SENSE input with two external resistors, system designers can set the threshold voltage to match specific operational requirements, which is critical in environments with varying voltage levels. This configurability enhances the adaptability of the supervisory circuit, making it suitable for a wide range of applications.

The TPS3805 series further extends the functionality of the TPS3803 family by incorporating a second adjustable SENSE input. This feature allows for monitoring multiple supply voltages or setting different thresholds for different operational states, providing an additional layer of protection and reliability in complex systems. The ability to monitor multiple voltage levels is particularly beneficial in systems with multiple power rails, ensuring that all components remain within their specified operational limits.

Overall, the TPS3803 and TPS3805 supervisory circuits play a crucial role in maintaining system integrity and reliability in DSP and processor-based applications. Their ability to monitor voltage levels and provide reset signals helps prevent erratic behavior and potential damage to sensitive components, thereby enhancing the overall performance and longevity of electronic systems.The TPS3803 and TPS3805 families of Supervisory Circuits provide circuit initialization and Timing supervision, primarily for DSPs and processor-based systems. The TPS3803G15 device has a fixed-sense threshold voltage VIT set by an internal voltage divider, whereas the TPS3803-01 has an adjustable SENSE input that CAN be configured by two external

resistors. In addition to the fixed sense threshold monitored at VDD, the TPS3805 devices provide a second adjustable SENSE input. RESET 🔗 External reference