ISL6608CB

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ISL6608CB is an integrated gate driver power management IC with power MOSFETs, designed for a range of switching power supply applications such as those found in disk drives, mini-display adapters and servers. The ISL6608CB integrates two high-side and two low-side MOSFET drivers with a powered bootstrap circuit, providing an operational power supply voltage up to 40V. This MOSFET-based gate driver enables the ISL6608CB to operate in a wide operating range from 1.8V to 40V and to operate with load current up to 5A. This makes it suitable for high current applications, such as those found in server and power supplies. In addition, the ISL6608CB features a pair of push-pull output drivers that can be used to drive up to two devices in parallel and can be configured as either two-phase or single-phase outputs.

The ISL6608CB can provide efficient, low-voltage/low-power, low-noise operation to meet system cost, safety, and EMC requirements. By incorporating two MOSFETs and a single resistor, the ISL6608CB minimizes power loss and improves efficiency. Its single resistor gate drive ensures the gate switching noise is low, resulting in EMI reduction. Finally, the ISL6608CB\'s creepage and clearance distance specifications meet UL/EN 60730-1 requirements for Type B insulation systems.

The ISL6608CB also optimizes operation for variable load current. The MOSFET drivers automatically adjust the MOSFET switching frequency to reduce switching loss at higher loading and to provide low (or no) switching loss at low loading. This prevents the IC from wasting thermal energy, as it senses and increases switching frequency when there is an increased load current requirement, then lowers the frequency to the minimum possible when the load is low.

The ISL6608CB includes a short-circuit protection feature to protect both external MOSFETs in case of an unexpected short circuit. Additionally, it has an over-temperature protection feature that detects and shuts off the device when its temperature rises higher than the thermal shut-off threshold. This helps protect the device from thermal damage.

The ISL6608CB is designed to operate within industrial environments and features thermal protection, over-current protection and open-drain fault flags that alert system design engineers of potential problems. This makes it suitable for switchmode power supplies operating in industrial applications including broadcast equipment, point of sale, medical and office electronics.

In conclusion, the ISL6608CB is an integrated gate driver power management IC that provides efficient, low-voltage and low-power gate drive. It is optimized to provide reduced switching loss and low noise operation, while also providing thermal protection, over-current protection and open-drain fault flags. These features make the ISL6608CB ideal for a range of switching power supply applications found in disk drives, mini-display adapters, servers, broadcast equipment, point of sale, medical and office electronics.

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