STM6720SFWB6F Integrated Circuits (ICs)

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The STM6720SFWB6F is a highly reliable and low-cost multi-voltage low dropout (LDO) device from STMicroelectronics. It is a single-channel supervisor IC, designed to monitor and control the power supply in various applications. It is ideal for use in space-constrained SMT designs.

The STM6720SFWB6F has two inputs for monitoring two different voltage levels and two open drain outputs for controlling the power supply. It is designed for use in applications such as telecommunications, consumer electronics, industrial, automotive, and medical devices. It provides system protection against over-voltage and over-current, and also offers power-on reset and watchdog functions.

The STM6720SFWB6F operates with an input voltage range of 2.6V to 5.5V. It has an adjustable reset threshold that can be set with a single external resistor, and a reset output voltage of 0.1V. The output voltage is stable even at a low input voltage, and the on-chip error amplifier eliminates the need for external compensation capacitor.

The STM6720SFWB6F’s operating temperature range is from -40°C to +85°C, and it features an internal temperature sensor for temperature compensation. Its extended operating temperature range makes it suitable for harsh environments. It has a 0.4µA low current consumption in standby, and a 1.2µA typical current consumption at a 2.6V input. This makes it an ideal device for battery-powered applications.

The STM6720SFWB6F is available in various packages, including the standard 6-pin SOT23, and a 6-pin FlipChip package which is suitable for automated assembly. The device is ESD protected and is fully compliant with the RoHS and WEEE requirements.

The primary application fields of the STM6720SFWB6F include providing system power monitoring and control for embedded systems in various applications. It can be used to monitor the power supply voltage, control the silent reset in microcontroller applications, and provide power-on reset and watchdog functions. The device can be used as well to monitor digital-to-analog converters (DACs) and other adjustable power supplies. Additionally, it provides protection against over-current and over-voltage, which makes it suitable for applications that require robust system protection.

The working principle of the STM6720SFWB6F is simple and straightforward. In order to initiate system reset, the supervisor checks the voltage level at the monitoring inputs. If the voltage is above the reset threshold, the supervisor initiates a reset output. The reset output will be active until the voltage reaches the programmed threshold. The supervisor also provides power-on reset and watchdog functions. The watchdog keeps track of system operations and will initiate a reset if a particular operation is not completed within a certain time.

In conclusion, the STM6720SFWB6F is an ideal supervisor for embedded systems. It provides robust system protection against over-voltage and over-current, and can be used to monitor the power supply in a wide range of applications, from telecommunications and consumer electronics, to industrial, automotive and medical equipment.

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