TEA1552T/N1,118

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The TEA1552T/N1,118, a type of Power Management Integrated Circuit (PMIC), is designed to be used in a range of offline switchers and AC/DC converters. It is a compact power integrated circuit (IC) that bridges the gap between a power source and a load, providing several features to ensure safe, reliable, and efficient power delivery. This PMIC device offers improved operational performance and power efficiency, as well as reliable protection for a wide range of applications, such as in industrial and consumer systems, and in the automotive sector.

The TEA1552T/N1,118 uses a topology that combines an AC rectifier or power diode and a current-mode power switch. In its operation, an AC input voltage is converted by the rectifier into a DC voltage, which is then controlled by a power switch. This switch is used to control the output voltage of the device, which is further regulated by a voltage-regulator built into the PMIC. The rectifier is usually an optimized, low-Q factor, high-frequency control switch, and the power switch can be either a buck (step-down) or a boost (step-up) regulator.

The device provides efficient operation in both buck and boost configurations, with a switching frequency of up to 150KHz in buck mode and up to 30KHz in boost mode. It is capable of delivering up to 3A/800mA in buck mode and 1.5A/300mA in boost mode. The adjustable output voltage range of the device is from 0.5V to 5.5V in buck mode, and from 2.3V to 5.5V in boost mode. It supports a wide input voltage range from 4.5V to 40V and offers an integrated soft-start circuit with adjustable ramp time.

The TEA1552T/N1,118 offers several features to ensure a safe and efficient operation. It features overvoltage protection (OVP) and thermal protection (TP), which protect the device from being overloaded and overheated. In addition, the PMIC device offers overcurrent protection (OCP) and short-circuit protection (SCP) that help to protect both the IC itself and the connected peripheral devices. To further prevent possible damage to the device, electrostatic discharge (ESD) protection is also provided.

The device also features a low quiescent current consumption of 80μA in low-power standby mode, as well as low operating temperature for improved reliability. It also offers advanced EMI filter options to minimize electromagnetic interference, which is particularly important for sensitive applications.

The TEA1552T/N1,118 is a useful device for applications such as automotive and home power supplies, industrial power supplies, portable systems, and battery-powered equipment. Its wide range of features and adjustable output voltage range make it suitable for providing reliable and efficient power delivery for a variety of applications. It is more suitable for applications with stringent requirements on reliability and automated shutdown capability.

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