TC1270FERCTR Integrated Circuits (ICs)

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TC1270FERCTR is a precision supervisor integrated circuit (IC) designed for monitoring power supply voltages in order to alert the user when the power supply voltage reaches a critical or unsafe level. It is a member of the PMIC-Supervisors class of ICs, which also includes voltage supervisors, overvoltage detectors, level translators, and comparators. TC1270FERCTR incorporates two reference voltage thresholds, each precisely set up to 5.32V. Its triggering threshold is typically 4% over the reference voltage, making it ideal for the use cases in which precision and accuracy is essential.

TC1270FERCTR’s application field varies significantly for different power supplies, but is primarily used with point-of-load (POL) DC/DC converters, PWM buck/boost converters, wide-range input supplies, mask sets and power-saving circuits. The two reference voltage thresholds can be programmed using a resistor divider network, and once configured, they can be monitored with a high degree of accuracy and precision. The trigger thresholds are built into the IC, and once enabled they will trigger a reset or an interrupt signal when the monitored voltage exceeds the programmed level.

The device works on the principle of the “input comparator”. It compares the reference voltage level to the input supply voltage and will issue an output signal when the input voltage rises above the reference voltage. The reference voltage is programmed using a resistor divider network while the input voltage is provided by the power supply. There are two reference voltage thresholds available, which means that two different voltage thresholds can be set up and monitored by the device.

The IC is also equipped with an open-drain reset (RST) output, which is activated when the power supply input voltage reaches the programmed threshold. This ensures that the device is reset upon power-up, providing an added layer of protection to the circuit. The device also offers two additional outputs: REF and INT/LIM. REF is used as an active low output and indicates when the device is operating within its predefined voltage range, while INT/LIM is an active low output used for an external interrupt indication.

TC1270FERCTR also offers other useful features such as the ability to adjust the timeout period of the reset output and a set of lock bits to prevent tampering or accidental changes. The device is also designed to have low operating current, making it suitable for battery-powered applications. In addition, it has an operating temperature range of -40°C to +125°C, allowing it to withstand harsh environmental conditions and guaranteeing reliable performance.

Overall, TC1270FERCTR is an excellent choice for applications requiring a high degree of accuracy and precision in voltage monitoring. It has a wide application field, an easy programming interface and a variety of features for reliable operation. It is a perfect choice for powering a wide range of circuit designs.

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