The LM5108DRCR is an integrated circuit (IC) component manufactured by Texas Instruments. It is a high-voltage, half-bridge PWM controller designed for use in various power conversion applications. The device is capable of driving both high- and low-side N-channel MOSFETs or IGBTs, making it suitable for controlling power in converters, inverters, and motor drives.
Key features of the LM5108DRCR include:
1. High-voltage operation: The IC supports a wide input voltage range of up to 100 V, allowing it to handle high-voltage applications in industrial and automotive systems.
2. Half-bridge controller: The LM5108DRCR is designed as a half-bridge controller, offering an interface to drive both high-side and low-side power switches. This arrangement ensures efficient power conversion in various applications.
3. PWM Control: It incorporates a high-speed voltage comparator for generating a pulse-width modulation (PWM) signal. This PWM signal regulates the duty cycle of the half-bridge switches, enabling precise control over the power delivered to the load.
4. Fixed-frequency operation: The device operates at a fixed switching frequency ranging from 100 kHz to 1 MHz. This fixed frequency ensures predictable behavior of the power conversion system and simplifies design considerations.
5. Programmable current limit: The LM5108DRCR allows users to program the maximum current limit to protect the system during over-current conditions
