UCD9080RHBT Integrated Circuits (ICs)

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The UCD9080RHBT is an industrial 4-channel voltage supervisor with integrated protection circuits from TI. Designed for industrial applications, it provides a high degree of accuracy and reliability. This supervisor is available in a 5x6 mm HVQFN16 package and operates from -40 to 125 °C.

The UCD9080RHBT is a high-performance voltage supervisor that provides four independent voltage monitor outputs with a notification output to indicate when one of the four channels is triggered. It includes four configurable thresholds, low-voltage detector, clock synchronization controller, voltage brown-out detector and bidirectional WDT. The adjustable threshold ranges are set by the user through a 4-bit digital serial control interface. The supply voltage ranging from 2.5 to 5.5 V and the load current up to 32mA, allows the UCD9080RHBT to meet the requirements of many applications. It also features a bidirectional WDT, which can be used for monitoring the operation of multiple microcontrollers.

The UCD9080RHBT can be used in many applications such as industrial communications, industrial automation, medical applications, and industrial control systems. Its highly reliable thermal design and high current drive capability makes it suitable for applications where reliability and ruggedness are required. Its adjustable threshold ranges and its flexibility to program via I2C provide design flexibility.

The UCD9080RHBT works in two main modes: watchdog reset mode and interrupt reset mode. The WDT can be used to detect a system fault or a watchdog timer expiration. The completed WDT reset sequence will trigger a system reset. The interrupt reset mode also triggers a reset if an interrupt is generated. This will reset the system and generate a hardware interrupt. The WDT can be configured in various modes such as chip reset, pin reset, watchdog reset, system reset, interrupt reset, fuse reset and normal reset.

The UCD9080RHBT can be used in both single and dual edge latch modes. In single edge latch mode, the activity on the WDT is reset only after the WDT reset has completed. In dual edge latch mode, the activity on the WDT is reset twice during the WDT reset sequence. This ensures that the WDT reset is performed in a much safer manner.

The UCD9080RHBT also includes an integrated power-on reset (POR) circuit. This reset can be triggered through an external button, or it can be done internally, based on an internal timer. It is also possible to configure the POR circuit to be active in one of many modes, such as following an internal or external event. The POR circuit also includes an adjustable delay, which allows the user to configure the reset delay to suit their needs.

The UCD9080RHBT is designed for stringent voltage accuracy, with user-definable hysteresis, adjustable hysteresis ranges and programmable offset. The precision, accuracy and flexibility of the UCD9080RHBT make it ideal for industrial and automotive applications. In addition, its low-power modes enable it to reduce system power consumption and improve the overall power efficiency of systems.

In summary, the UCD9080RHBT is a 4-channel integrated voltage supervisor designed for industrial applications. It provides flexible programming and reliable voltage accuracy, making it suitable for applications where reliability and ruggedness are required. It includes integrated protection circuits such as a low-voltage detector, clock synchronization controller, voltage brown-out detector, bidirectional WDT and power-on reset circuit. The adjustable threshold ranges and adjustable hysteresis provide design flexibility and make it suitable for applications that require precision and accuracy.

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