XC6121E545ER-G

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Power Management Integrated Circuit (PMIC) is a semiconductor integrated circuit designed for power management. PMICs are designed to improve energy efficiency, ensure system reliability and maximize battery life. PMICs are used in a variety of devices, including smartphones, tablets, laptops, digital cameras, and TVs. Supervisors are a type of PMIC that is specifically designed to protect and monitor the power of the system and its components.

XC6121E545ER-G, a type of supervisor, is an ultra-low-power, low-voltage reset circuit used in communication systems, wireless communications and multimedia applications. It is available in an ultra-small MLPNW package. This PMIC supervisor offers a wide range of features such as detection of microcontroller reset, low voltage reset and watchdog timer. It has an ultra-low power consumption of 0.15 µA.

Application Field

The XC6121E545ER-G supervisor is widely used in embedded systems, which require low-power high-efficiency performance. The low-voltage, low-power reset circuit can be used for applications such as WiFi, cellular phones, tablets, IoT applications, and wearable devices. It is specifically designed to protect and monitor the power of the system and its components by detecting microcontroller reset, low voltage reset and watchdog timer.

The XC6121E545ER-G supervisor is also used in smart digitalconsumer applications. It supports advanced features, such as adjustable reset voltage, watchdog timer, and manual reset. These features make it suitable for supervisors in digital consumer systems, such as digital television sets, Blu-ray players, and digital set top boxes.

The XC6121E545ER-G supervisor is also ideal for industrial applications. It has a wide input voltage range from 1.3V to 6.5V, with an adjustable reset voltage range from 1.3V to 5.3V. It is highly reliable, with a latency of 0.105Ω and excellent immunity against noise and vibration. The supervisor is highly protected with ESD protection and reverse voltage protection. These features make it suitable for a wide range of industrial applications.

Working Principle

The XC6121E545ER-G PMIC supervisor operates through the use of a voltage detector and a pulse-width modulation (PWM) circuit. The voltage detector monitors the voltage level, and the PWM circuit controls the output based on the voltage level. When the voltage drops below a certain threshold, the voltage detector triggers the PWM circuit to reset the microcontroller. The PWM circuit then turns on the reset signal for a certain period of time and turns it off. This ensures that the microcontroller gets a reset signal when the voltage is below a predetermined threshold.

The XC6121E545ER-G supervisor is also equipped with a watchdog timer (WDT) to detect malfunctioning of the system. The watchdog timer resets the system periodically if it does not receive the correct signal. This ensures that the system runs smoothly and reliably. The watchdog timer can be set to a range of start count values, with a watchdog window time of 256ms/16ms/2ms.

Additionally, the XC6121E545ER-G PMIC supervisor can be used in manual reset mode. This allows the user to manually reset the system when needed. This feature makes the supervisor suitable for user-side resetting, providing a convenient way of resetting the system.

In summary, the XC6121E545ER-G PMIC supervisor is a low-power, low-voltage reset circuit that is suitable for communication systems, wireless communications, multimedia applications, embedded systems, digital consumer systems, and industrial applications. It offers a wide range of features such as an adjustable reset voltage, watchdog timer, and manual reset. It can be used to detect microcontroller resets, low voltage resets, and watchdog timer failures, ensuring a reliable and stable system performance.

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