LM5115MTCX

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 LM5115MTCX is a family of highly integrated power devices designed to consume as little dissipated power as possible while operating in temperature ranges optimized for typical modern technology applications. The device uses eGaN FETs and low on-resistance digital power switches to achieve the desired performance. The integration of a high-speed voltage controlled oscillator and advanced digitally controlled switching frequency generator ensures precise regulation of output current and fast settling time. The integrated low-side drivers allow a wide range of control implementations. The LM5115MTCX is a 5 V power supply controller designed for automotive, communication, industrial, and other applications. The device is capable of providing precise voltage and current regulation across a wide range of temperatures and with a wide range of DC input voltages and available output current. The device utilizes a voltage controlled oscillator (VCO) to regulate the output voltage. A power switch is turned on when the VCO output is above a certain threshold, and turned off when the VCO output drops below another threshold. The current pulses passed through the power switch are determined by the VCO frequency and the external resistive components connected to the device.

The LM5115MTCX operates in one of three modes: standby, adaptive pulse frequency modulation (APFM), and pulse width modulation (PWM). In standby mode, no current is drawn from the output, and the devices draws only a very small amount of current from the input power. In APFM mode, the rate of switching of the power switch is dynamically varied to adapt the output voltage to the desired values. Finally, in PWM mode, the rate of switching is fixed and a steady output is supplied.

The device utilizes a digital current control loop to sense and regulate the output current. This loop uses a sensor connected to the output current sense pin to measure the output current. The error signal from the current loop is then used as an input to the voltage control loop which regulates the output voltage. The current control loop includes a PWM comparator, current sense resistor, error amplifier, and a transconductance amplifier. The voltage loop includes an voltage error amplifier, voltage reference, and an oscillator. The oscillator frequency is adjusted by the current loop, allowing the output current to be regulated over a wide range of input voltages and output current levels. Output current can be sensed for protection against over-current conditions.

The device also includes over-temperature protection, which shuts down when the temperature reaches a certain threshold. A programmable loop compensation circuit is provided to reduce the effects of output voltage droop. An enable/disable pin is also provided to enable or disable the chip.

The LM5115MTCX is a powerful and versatile power supply controller, monitor, and regulator suitable for a wide range of applications. It is designed to provide precise voltage and current regulation under a wide range of environmental conditions and with a wide range of DC input voltages and available output currents. The integrated digital current control loop and voltage control loop ensure fast settling time and precise regulation. The device also includes over-temperature protection and a programmable loop compensation circuit which reduces the effects of output voltage droop.

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