TC78H611FNG,EL

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Power Management Integrated Circuit (PMIC) is a kind of chip that regulates the power supply in electronic devices. It is commonly used in automotive and industrial applications for DC-DC converters, LED drivers, motor drivers, Li-ion chargers, and other regulators. PMICs are designed to reduce energy losses by optimizing the power configuration of the system and provide a better performance and higher efficiency. The TC78H611FNG is a motor driver and controller, specifically designed to drive and control 2-Phase Motors in automotive applications such as Electric Power Steering (EPS) and Hybrid Electric Vehicles (HEV) systems. The chip is capable of delivering continuous currents up to 4.2A, and peak currents up to 5.0A per phase. It offers low-voltage operation, low shutdown current, and supports 16-bit PWM control. The TC78H611FNG integrates several functional blocks such as Pulse Width Modulation (PWM) and On-Time Control (OTC), current sensing, thermal sensing, over-current protection and fault detection. The PWM is used to adjust the speed of the motor as well as the torque output. The OTC block compensates for the changes in motor speed due to temperature and humidity. Current sensing is used to monitor the current flowing through the motor and protect the device from over-current. The thermal sensing block monitors the die temperature and shuts down the device in case of over-heating. The chip is designed to meet the highest flexibility requirements such as Automatic Restart and Automatic Disable Modes. Automatic Restart works when the rotor position is detected outside the pre-defined range of -10°– +150°; it will restart the motor as soon as the rotor position is within the predefined range. In Automatic Disable Mode, the motor will stop automatically when the rotor position is outside the predefined range of -10°– +170° and will remain disabled until the rotor position is within the pre-defined limit.The TC78H611FNG comes in a TSOP-7 package and is cost-effectively compliant with the AEC-Q100 certification, making it suitable for automotive applications. It can operate over a temperature range of -40 °C – 150 °C and has a lower supply voltage than the conventional motor drivers. The chip is also RoHS compliant and has built-in EMI filtering functionality, which helps to reduce interference in EMI-sensitive applications.In summary, the TC78H611FNG is a motor driver and controller specifically designed to drive and control 2-Phase Motors in automotive applications, providing best-in-class performance in terms of power efficiency, flexibility and reliability. It offers several integrated peripherals such as PWM, OTC, current sensing, thermal sensing, over-current protection and fault detection, and is suitable for use in AEC-Q100-certified automotive products.

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