IR21064STRPBF

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IR21064STRPBF is an integrated circuit (IC) product in the Power Management IC (PMIC) - Gates Drivers family. It is an advanced high and low side driver, suitable for driving power MOSFETs and IGBTs in a wide range of power motor applications. The efficient switch-mode operation and fast current limit response time reduce power losses and improve the system efficiency. The IC features an ideal combination of low RDS(ON), low gate charge, low output capacitance, and high current ratings for robust, reliable, and cost-effective system performance.

The IR21064STRPBF is a monolithic IC packaged in a surface-mounted device (SMD) package. It includes two high and low side gate driver outputs, a gain stage, a latch stage and an open-drain output stage. The IC incorporates a Miller current-limiting circuit to protect itself against high voltage application and false triggering. The product is designed to operate in the -40° to 150°C temperature range.

The IR21064STRPBF is designed for maximum efficiency and high system-level reliability in many applications, such as DC/DC converters, car battery chargers, adaptors, inverters, motor control systems, and UPS. It is particularly suitable for driving power MOSFETs and IGBTs in harsh environments or safety-critical, high-voltage applications.

The IR21064STRPBF provides a wide variety of features, such as bi-directional level-shifting, current sensing, overvoltage protection, latch-up protection, and an integrated oscillator. The adaptive dead-time control and true RDS(ON) sensing feature provide soft-start and dynamic control of switching losses. The IC includes an adjustable output stage to reduce shoot-through current and to optimize system performance. With the on-board non-volatile memory and fault logic, the IC offers self-protection during normal and fault conditions.

The working principle of IR21064STRPBF can be divided into two distinctive functional blocks, the drive control block and the output stage. The drive control block includes the high and low side drivers, the gain stage, and the latch stage. The high and low side drivers pass power from the input to the output by level-shifting the gate signals, while the gain and latch stages provide additional protection for the device. The output stage controls the current flow between the drain and source of the device by controlling the gate voltage. The output stage also provides a latch-up protection for the device by controlling the negative voltage swing at the gate.

The integrated circuit also includes an advanced overvoltage protection circuit that protects the device from over-voltages applied from the input. The overvoltage protection circuit is implemented using a voltage-controlled switch, which limits the output current when an over-voltage is detected. In addition, the IC includes a current sensing feature that monitors the drain current and can be used to detect excessive currents in the circuit.

The IR21064STRPBF is a highly advanced driving IC that combines high reliability and efficiency. It is suitable for many applications, such as DC/DC converters, car battery chargers, adaptors, inverters, motor control systems and UPS. The IC offers a number of features, such as overvoltage protection, latch-up protection, current sensing, and adaptive dead-time control. Finally, the IC incorporates a non-volatile memory and fault logic for self-protection during fault conditions.

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