L9709

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The L9709 is a specialized integrated circuit (IC) that is generally employed in automation, electromechanical and power applications. It is a three-phase pulse width modulation (PWM) IGBT driver designed for multiple applications where excellent motor control performance, higher gate drive current capability, overload protection and noise reduction are the primary criteria for selection. This high performance IC offers guarantees of better overall system performance and reliability.

The L9709 utilizes a unique pulse width modulation technique to boost certain parameters, such as the current driving capability, switch on speed, etc., to a higher level than that of traditional pulse width modulation schemes. It operates on the principle of pulse width modulation, where the frequency and width of the pulses applied to the gate of the IGBT are varied to control the current passing through the device. The main components of the L9709 are a three-phase bridge driver with an output slew rate of up to 30V/μs, a logic interface for decoding logic signals for current sharing, a logic configured for optimised functional implementation, a low-noise PWM circuit and an adjustable gate drive voltage.

The L9709 is capable of delivering a current drive capability of up to 10 A per line, with an adequate margin for effectively clocking in and out the IGBTs. In order to meet the various power requirements of different applications, the L9709 offers a wide range of switching frequency values, ranging from 100 KHz to 600 KHz. Furthermore, the IC also provides flexibility in terms of gate drive voltage. This voltage can be adjustable depending on the application, wherein the exact drive voltage can be established using an external resistor.

The L9709 has numerous advantages over other conventional three-phase PWM IGBT drivers. Its low noise design provides an effective suppression of the difference in the peak-to-peak level of the drive signals thereby reducing noise effects such as switching artifacts. Additionally,high frequency operating capability of the L9709 ensures faster switching, giving superior performance and control when compared to other driver solutions. Also, inrush and high frequency noise can be effectively minimized by utilizing the overvoltage protection feature of the IC.

The L9709 is an excellent choice for various automation, power and electromechanical applications requiring superior performance. It can be used for IGBT based switching solutions for AC motor control, fault protection and monitoring applications. Its adjustable drive voltage, high frequency operating capability and efficient noise suppression provide cost-effective solutions for industrial and commercial applications. Furthermore, due to its efficient operation and guaranteed long-term reliability, the L9709 can reduce operational costs, thus improving the system’s overall efficiency.

The specific data is subject to PDF, and the above content is for reference