PX3511BDAG-R3

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PX3511BDAG-R3 is an integrated gate driver IC, which is categorized into PMIC - Gate Drivers. It is mainly used in CPU, digital signal processor (DSP) and microcontroller (MCU) applications with its wide input voltage range and wide output current capability. It is intended to drive small, hard-switched N-channel MOSFETs in different bottom-side architectures.

The PX3511BDAG-R3 is a low-to-medium voltage MOSFET gate driver which offers a very wide operating voltage range (2.2V to 32V) and can drive N-channel MOSFETs with high efficiency in both buck and boost configurations. The device has two full bridge gate drivers, high and low side, capable of delivering up to 500mA and 1200mA respectively. The high side driver has an internal charge pump for and delivers gate-source voltages up to 28V. It is capable of driving capacitive and/or inductive loads with minimum output voltage ringing and undershoot. The low side gate driver, which can provide up to 1200mA, can drive a MOSFET with low gate-source voltage.

The PX3511BDAG-R3 can be used in various applications such as DC-DC converters, buck, boost and buck-boost converters, and motor drivers. It has an integrated on-chip flexibility, with a wide voltage range (2.2V to 32V) and quick, short-circuit protected output current. The device also provides a robust ESD protection architecture which withstands multiple discharges of up to ±2kV contact and ±2.5kV air level. This can increase the reliability of system and also allows for superior design.

The PX3511BDAG-R3 features are aimed to meet requirements for increased power efficiency and reduced power consumption. The low-to-medium voltage MOSFET Gate Driver allows the elimination of external components, saving board space. This device also utilizes optimized PCB layouts to improve current delivery from the gate to the device’s source terminal. The combination of these features can help improve system efficiency and reduce power consumption.

The working principle of the PX3511BDAG-R3 can be explained by its architecture. The device has two integrated full-bridge gate drivers with high side and low side outputs. It also has a low-side MOSFET driver with two of its outputs connected to the source and the gate of the MOSFET. The source and gate are driven by the high side gate driver while the gate of the MOSFET is driven by the low-side driver. This architecture provides higher drive current, lower output capacitor and gate to source ringing, and improved power consumption. The device also features an internal voltage divider and an integrated logic controller which provides near-instantaneous switching and pulse-width-modulated control for load switching.

The PX3511BDAG-R3 is a low-to-medium voltage MOSFET gate driver with a wide operating voltage range and high drive current. It allows improved power efficiency and reduced power consumption while helping to reduce board space requirements. It is designed to be used in applications such as DC-DC converters, buck, boost and buck-boost converters, and motor drivers. Its architecture and internal components provide optimized operation and high reliability.

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