S-8337AADA-T8T1G

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The S-8337AADA-T8T1G is a chip designed by ON Semiconductor which is a low on-state resistance (RDS(on)) dual N-channel power MOSFET integrated circuit switch controller. This device is an ideal solution for high-current and high-power applications where space and efficiency are key requirements. It features a pair of low-RDS MOSFETs, advanced thermal protection and current protection, and built-in undervoltage lockout for safe operation, making it an ideal choice for space-constrained applications.

Application Field

The S-8337AADA-T8T1G can be used in a wide range of power management applications including power converters and power supplies, DC/DC switching regulators, inverters, lighting control, LED drivers and motor controller applications. It is suitable for most kinds of power systems, including AC/DC systems, DC/DC, DC/AC and motor control systems. The device has a very low RDS(on) of only 0.6Ω, making it ideal for high current and high power actions.

Working Principle

The S-8337AADA-T8T1G is designed to work in switching mode and operates with a constant current during switching events. It works in a similar way to traditional MOSFETs, except the MOSFETs are integrated into the chip and the drive stage is built-in. The integrated circuit switch controller is powered with a 5V source and it uses this voltage to produce the gate drive voltage for the MOSFETs. The integrated circuit contains two n-channel MOSFETs which the N-channel is used to control the device power on and off. The circuit is composed of the memory circuit, current limitation circuit, undervoltage lockout circuit, driver circuit and WDT circuit, and feedback loop for current sensing.

The memory circuit is used to save up to 64 registers which can control the timing parameters of the device, allowing it to be preconfigured for different applications. The current limitation circuit monitors the output current and protects the load from high current conditions. The undervoltage lockout circuit monitors the input voltage and will turn the switch off in the event of voltage loss. The driver circuit produces the gate drive signals for the MOSFETs, while the watchdog timer (WDT) monitors the output of the circuit in order to ensure a safe operation.

The S-8337AADA-T8T1G is an efficient and reliable solution for space-constrained high-current and high-power applications. It is designed to deliver high efficiency and robust performance even under extreme conditions and is suitable for many types of power systems.

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