IR21064

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IR21064 is a high performance driver gate that falls in the category of PMIC - Gate Drives. It is a low-RDS(ON) driver IC that enables the design of highly efficient and compact gate-drive solutions. The IC itself is housed in a small 8-pin SOIC package and incorporates all the necessary functions to enable fast switching of the power MOSFET gates. It is designed to be used in a wide range of applications, primarily involving high current switching applications and low to medium voltage power supplies.

IR21064 Electrical Characteristics:

The IR21064 has the following electrical parameters:

• Input voltage range: 4.5V to 16V
• Output voltage range: 0.8V to 20V
• Output current capability: 1A
• Gate drive capability: 2A/400V
• Switch on resistance: 20mΩ
• Rise and fall time: 10ns typical

IR21064 Applications:

The IR21064 can be used in a wide range of applications involving high current switching and low to medium voltage power supplies. Its low RDS(ON) and low Input capacitance make it suitable for applications such as:

• High current AC/DC and DC/DC switching supplies
• Automotive systems
• Lighting control systems
• Motor control
• Power factor correction
• Power over Ethernet systems
• Battery charging systems
• Portable device power management

IR21064 Working Principle:

The IR21064 works on an external control signal (VCC) applied to its input (IN) port. The driver control signal is transmitted to the MOSFET gate via an internal driver stage, allowing the MOSFET to be operated at very fast switching frequencies. This results in a more efficient operation of the MOSFET, resulting in reduced power dissipation. The driver IC also incorporates a pull-up circuit, which helps reduce the rise and fall times of the MOSFET, thus improving overall switching efficiency. The supply voltage (VCC) is clamped to a maximum of 16V, thus avoiding unnecessary voltage spikes on the MOSFET gate.

In addition, the IR21064 provides a slew rate control feature to control the MOSFET’s gate-to-drain capacitance. This helps reduce switching losses and ensures that the MOSFET is operated in its linear region. It also helps improve system efficiency and reduce EMI. The IR21064 also features an over-voltage protection circuit, which helps protect the MOSFET from high voltage spikes.

The IR21064 can be used in high power applications, as it is capable of handling current up to 2A/400V. The low RDS(ON) and low input capacitance also make it suitable for use in low current applications, such as portable device power management or battery charging systems. Overall, the IR21064 is an ideal solution for efficient gate-drive applications in a variety of applications.

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