1SD312F2-CM600HB-90H

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Power management integrated circuits (PMICs) provide key functions such as power sequencing, voltage regulation, and overcurrent protection. Gate drivers are a type of PMIC that provide isolated control and power to external power switches including MOSFETs, IGBTs, and BJTs. These devices act as a protective barrier between the application circuitry and the power switch. By providing a fully isolated input and output, gate drivers reduce system complexity while increasing reliability. The 1SD312F2-CM600HB-90H is a gate driver specifically designed for high-voltage, AC/DC switching applications. This article will discuss the application field and working principle of this device.

Application Field

The 1SD312F2-CM600HB-90H is designed for use in high-voltage, AC/DC switching applications. It is especially suitable for applications such as power converters, motor control, lighting, and industrial automation. It is also suitable for applications requiring up to 600V of high-side voltage protection and isolation. Additionally, the device features high EMI immunity and fast switching times for improved system efficiency. With its ability to support low-side overvoltage protection and a wide operating temperature range, the 1SD312F2-CM600HB-90H is an ideal choice for high-voltage AC/DC switching applications.

Working Principle

The 1SD312F2-CM600HB-90H is a high-voltage, non-isolated gate driver. It is designed to provide isolated control and power to external power switches. The device consists of a controller IC and an isolation IC with a transformer and internal voltage regulators. The controller IC provides the power switch control signal while the isolation IC provides isolation and protection against overvoltage and undervoltage conditions. The device is designed to be used with low-side MOSFETs and IGBTs with a maximum drive voltage of 600V. It features a low-side overvoltage protection of 600V, a maximum current of 600mA, and a wide operating temperature range of -40°C to 130°C.

The device operates in a push-pull topology with two separate outputs for the signal and power pathways. The signal output provides a high-side gate drive signal to the power switch, while the power output provides the low-side gate drive signal. The signal output can be set to operate in either switching mode or frequency mode. In switching mode, the output voltage is limited to 100V, while in frequency mode, the output voltage is limited to 12V. The device also features adjustable switching times to improve system efficiency.

The device features a number of features to improve performance and reliability, including adjustable overcurrent and negative voltage protection, voltage clamping, overshoot protection, and programmable dead time. In addition, the device supports an integrated circuit protection temperature range of -40°C to 130°C. The device also features an overvoltage/overcurrent shutdown system, allowing the device to automatically shut down in case of excessive current, temperature, or input voltage.

Conclusion

The 1SD312F2-CM600HB-90H is a gate driver specifically designed for high-voltage, AC/DC switching applications. It is designed to provide isolated control and power to external power switches, such as MOSFETs and IGBTs. The device features high EMI immunity, fast switching times, adjustable switching times, and a wide operating temperature range. It also supports low-side overvoltage protection and a programmable dead time. With its robust and reliable performance, the 1SD312F2-CM600HB-90H is an ideal choice for high-voltage, AC/DC switching applications.

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