STM6519APARUB6F Integrated Circuits (ICs)

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Overview

STM6519APARUB6F is a PMIC – Supervisor manufactured by STMicroelectronics. It is specifically designed to protect against overvoltage transients in industrial applications. It is designed to provide both continuous overvoltage protection and monitoring of multiple input voltages. This device provides external protection circuitry for loads up to 6A with a wide range of input voltage (1.3 V to 5.5 V).

Application Field

The STM6519APARUB6F is used in various industrial applications that requires protection against overVoltage transients. It can be used in Automotive, Communication, Computing, Industrial, Medical, Military, Networking, and Portable applications. It is designed to meet or exceed both industrial and automotive temperature ranges. The device is ideal for automotive applications requiring Enhanced Device Enabled (EDE) protection.

In addition, the device is also used in PDAs, mobile phones, and other embedded systems, as well as in communications systems, computers and servers.

Working Principle

The STM6519APARUB6F uses the integrated circuit (IC) protection principle to provide overvoltage protection for loads up to 6A. Its overvoltage protection circuit consists of an N-type MOSFET (NMOS) and adjustable current limiting circuit. The adjustable current limiting circuit allows the user to set the desired overvoltage protection level according to the system requirements. Upon sensing an overvoltage, the NMOS will turn on immediately, thus disabling the current path and protecting the load.

The device also provides monitoring of multiple input voltages. The monitoring circuit is composed of a Comparator, a Band-Gap reference, and an A/D converter. The A/D converter converts the analog signal to digital values, depending on the voltage range of each channel. The Comparator then compares the measured voltage to the reference voltage and sends an interrupt signal, when the measured voltage differs from the reference one. The device can be configured to monitor up to 6 input voltages.

The STM6519APARUB6F also provides enhanced device enable (EDE) function, which prevents device damage during a power-down phase. The EDE function enables the device to detect any changes in the input voltage before initiating a power-down mode, thus protecting the device from overvoltage transients during the power-down phase.

Conclusion

The STM6519APARUB6F PMIC – Supervisor is an essential protection component for industrial applications, providing overvoltage protection and monitoring of multiple input voltages. The device is designed to provide both continuous overvoltage protection and EDE (Enhanced Device Enable) protection to prevent device damage during power-down phases. The device offers great flexibility and protection to industrial applications and is ideal for automotive applications.

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