CAT809MTBI-GT3

The CAT809MTBI-GT3 supervisor is a three-level reset/power-on reset circuit that monitors the system power supply, providing an accurate indication of a power failure, and a latch-up indication of an overvoltage, undervoltage, or power brown-out condition. Used in a wide range of industrial and consumer applications, this product is a reliable and accurate solution for power supply monitoring and protection for the system.

The CAT809MTBI-GT3 is fabricated using a CMOS process to maintain low power consumption. It provides three levels of reset output and one power good output. The reset outputs of the CAT809MTBI-GT3 are active-low, push-pull outputs with a 100 mA sink current limit. The reset outputs are activated when the supply voltage falls below the reset-threshold or when power is applied and the reset-threshold is not achieved within the specified reset delay. During a brown-out event, the reset outputs are asserted until the supply voltage is restored above the reset-threshold.

The CAT809MTBI-GT3 follows the low-drop-out voltage regulator (LDO) regulation curve, and a fixed delay is inserted to allow LDO regulation time to take effect. The reset-delay time is factory-set and can be adjusted to suit the application. The CAT809MTBI-GT3 is pin-to-pin compatible with most existing reset ICs, making it an ideal drop-in replacement.

The CAT809MTBI-GT3 has an adjustable supply voltage monitor threshold. It also includes an overvoltage monitor threshold and an undervoltage monitor threshold. The overvoltage and the undervoltage thresholds can be adjusted for the application’s needs. An optional adjustable power-OK delay is available for generating the power-OK signal. This signal can be used for power-up sequencing or providing system reset or power-good information.

The CAT809MTBI-GT3 provides a convenient means for systems designers to greatly reduce the complexity of their power supply monitoring and control. With its small form factor, low power consumption, and adjustable reset thresholds, the CAT809MTBI-GT3 is well-suited for a wide array of applications.

The CAT809MTBI-GT3 is part of the highly-reliable protection circuit portfolio that TI offers. The device is designed to guard systems against power supply-related faults, including overvoltage, undervoltage, and power-down/brown-outs. Providing multiple reset outputs, it supplies a smooth transition from one power state to another. It is specifically designed to eliminate reliability issues and to lower system power costs.

In summary, the CAT809MTBI-GT3 supervisor is a versatile, low-power and cost-effective PMIC - Supervisors for monitoring and controlling the power supply. It features an adjustable reset thresholds, reset delay, and an optional adjustable power-OK delay for greater flexibility and monitoring accuracy. With its reliable protection, this device is suitable for industrial, radio frequency, automotive, computing, telecom, and consumer applications.