S-80128BNPF-JGNTFG Integrated Circuits (ICs)

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Supervisors are integrated circuit components used in power management systems to monitor and control the power supply status. The S-80128BNPF-JGNTFG is a multi-purpose, high performance supervisor device. This supervisor integrates multiple features, allowing designers to meet the required monitoring features from various power supply design.

S-80128BNPF-JGNTFG combines the ON/OFF state control, overtemperature protection, and power-good, power-bad monitoring to serve as a single integrated circuit. This single chip ensures the stability of the system’s power supply and control of power-on and power-off timing, and also provides resistive temperature detection and programmable simple action, which effectively reduces the number of components and PCB design.

The application field of the S-80128BNPF-JGNTFG comprises portable devices such as video players, digital cameras, MP3/MP4 players, mobile TV, digital cameras, and gaming devices. This supervisor also can be applied to industrial automation, power management, medical, and communications systems. In addition, the S-80128BNPF-JGNTFG has comprehensive protection features, such as over current protection, over voltage protection, and short circuit protection to ensure the safety and stabilization of the system’s power supply.

The working principle of the S-80128BNPF-JGNTFG begins when the system is powered off. When a drop in voltage is detected and the power supply is within the given range, the internal comparators trigger HIGH level, and the system is in the Off-Mode state. To turn on the system, the internal comparator triggers LOW level and the system will enter the On-Mode state. High or low level signals can then be detected in the power-on and power-off timing phases to activate the power-on and power-off timing features. The internal circuit also measures resistive temperature and then compares it to the preset value. Once the maximum temperature is exceeded, the S-80128BNPF-JGNTFG will automatically shut off the system.

Another important feature of the S-80128BNPF-JGNTFG is the power-good and power-bad monitoring feature. When the power supply is within the given range, the power-good signal is triggered at HIGH level, indicating the power supply is normal. If a drop in voltage is detected, the power-good signal will be triggered at LOW level, indicating a power-bad condition.

Additionally, the S-80128BNPF-JGNTFG incorporates an internal fixed-voltage reference circuit and temperature correction circuit, which stabilizes its internal circuit and improves the accuracy and reliability of the power supply state detection. The self-protection circuit can detect a short-circuit fault in the Line-ON circuit, thus preventing the over current from occurring.

In conclusion, the S-80128BNPF-JGNTFG is a high-performance multi-purpose supervisor device. Its application fields include portable devices, industrial automation, power management, medical, and communication systems. Its power-good and power-bad feature is able to monitor the power supply state and trigger alert in cases of over voltage, short circuit, and over temperature. Its self-protection circuit eliminates the need for additional protective devices, reducing the number of components required and the PCB design. Therefore, the S-80128BNPF-JGNTFG is a reliable choice for power management systems across multiple applications.

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