ICL7667EPA+

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The ICL7667EPA+ is a PMIC - Gate Driver created by Intersil that is geared towards driving high-voltage MOSFET and IGBT power switches. It is an improvement over their previous models due to its smaller footprint, increased efficiency, reduced power dissipation, improved EMI/EMC performance, and increased fault protection. The device can be used in AC-DC and DC-DC converters, resonant converters, DC motors, UPS systems, and anywhere else that requires power switching between loads.

The ICL7667EPA+ features an integrated driver stage on a small 11-pin package, with two high voltage MOSFETs or IGBTs connected in a complementary half-bridge configuration for driving large inductive and capacitive loads. The device is supplied by an internal power supply, and is capable of 200 mA peak current charging and discharging currents up to 1.5A. The integrated driver shut-down protection further enhances reliability.

The working principle of the ICL7667EPA+ is based on its ability to independently control both sides of the half-bridge switch. Using PWM control, the gate voltages of both devices can be precisely adjusted, allowing the load current to be accurately regulated and scalable to the specific application requirements. The device also features built-in short-circuit and thermal protection, as well as over-current protection, which helps prevent damage and increase the safety of the system.

The ICL7667EPA+ can also be used for power factor correction in AC to DC applications. By accurately driving the switching inputs, harmonic distortion can be minimized, resulting in improved power efficiency and reliability. In DC-DC applications, the device’s integrated 3v-12v voltage regulator allows for precise and stable supply voltages, resulting in higher efficiency and improved system reliability.

In summary, the ICL7667EPA+ is a PMIC - Gate Driver from Intersil that is designed for power switching applications. With its built-in driver shut-down protection, high current handling capability, and integrated voltage regulator, it offers improved system efficiency and reliability. The device can be used in a variety of applications including AC-DC and DC-DC converters, resonant converters, and DC motors.

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