U5021M-NFPG3

The U5021M-NFPG3 is an advanced and high-performance single-chip Supervisory IC specifically designed for use in portable products. It offers robust protection and a wide range of features specifically designed for portable products and is able to interface with multiple voltages systems ranging from a single cell to several batteries or other supplies.

This integrated circuit provides multiple power management functions, such as reset, power-on reset (POR) detection, power down detection, undervoltage lockout, overvoltage lockout, and power-on reset pulse. It is an ideal product for applications such as personal electronics, automotive, medical and industrial control devices.

Application Field

The U5021M-NFPG3 is an ideal product for applications that require low power consumption, reliable system reset, accurate monitoring and control of various power supplies, and maximum flexibility with regard to system design. Its extensive range of features and integrated protection circuits make it suitable for embedded systems, automotive systems, and other harsh environments. Its low operating voltage and power consumption make it an efficient solution for battery operated and portable applications.

This integrated circuit is also suitable for applications in a range of consumer electronics and was specifically designed to provide battery-operated systems with a versatile and integrated solution to protect, monitor and control battery voltage levels. It is also a great choice for applications requiring exceptional reset accuracy, such as high-speed microcontrollers and low voltage logic systems.

Working Principle

The U5021M-NFPG3 is a 3.3V device that operates over a wide voltage range of 0.8 to 6V supply. It can detect two types of events with its two-stage power supervisor, namely power-on reset (POR) detection and power down detection. Its integrated system reset circuit significantly reduces the number of external components needed for reset processing.

The integrated overvoltage/overtemperature protection circuit is designed to guard the system against accidental exposures to excessively high power input voltages and elevated temperatures. Additionally, the integrated undervoltage lockout circuit prevents high current consumption in the event of a low battery voltage.

The integrated power-on reset pulse is ideal for applications where a fixed reset time is required, or when multiple reset pulses are required. The power reset pulse sent by the integrated circuit is non-volatile and will not incidentally reset during a power supply change or turning off/on an external system.

The integrated oscillator significantly reduces the oscillator circuit area and cost in the system design. It can output reset pulses with adjustable frequency, making it suitable for applications such as oscillator circuits and audio ringing oscillator circuits. The oscillator can be disabled for cost-critical applications.

The U5021M-NFPG3 also features an integrated deglitcher. This deglitcher prevents occasional reset triggers due to power supply conditions or other transient noise. The device also combines all voltage detect functions in one package, which reduces the number of external components necessary.

In summary, the U5021M-NFPG3 provides an advanced and highly integrated single-chip solution specifically designed for power monitoring and control applications in portable systems. It is accurate, reliable and suitable for a range of different applications. Its low power consumption and multiple power management functions make it an ideal choice for portable applications.