AON7508 Discrete Semiconductor Products

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AON7508 is a highly integrated and low cost device for self-driver power stage applications. It is built up with a DirectFET MOSFET with special features like low on-resistance, fast body diode, and direct gate drive. This device is suitable for a wide range of applications like in computing, AV, motor control, automotive and white goods.

AON7508 is a single, monolithic chip with integrated CMOS logic , which provides maximum convenience during development and prototyping. It provides a digital output as well as an externally emulated power switch. The exter- nally emulated power switch can control either a power mosfet of a high-side power switch. It includes an advanced integrated monolithic gate driver, a preventive overcurrent protection circuit, overvoltage clamp, frequency slewing rate limitation, over-temperature protection and short circuit protecti- ons.

Its working principle starts from the power rails, to which the AON7508 is connected to. When an ON signal is sent from the host, the AON7508 will enable the output power stage. Since this is a directFET MOSFET, its body diode is able to provide a quick response and efficient energy transfer. As the power stage is enabled, the AON7508 will adjust the gate voltage to ensure that the desired voltage and current levels are reached. It also has an in- built protection circuitry that provides safety measures for abnormal conditions such as over- current, over-temperature, or over-voltage.

AON7508 is an ideal solution for self-driven power stages due to its integrated gate driver and other safety features. It is suitable for a wide range of applications like in computing, AV, motor control, automotive and white goods. The device is also easy to implement during development and prototyping due to its single chip architecture and digital output. Therefore, the AON7508 offers a reliable, low cost and efficient solution for self-driven power stages.

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