LM5104MX

Current - Peak Output (Source, Sink):	1.6A, 1.6A
Base Part Number:	LM5104
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Rise / Fall Time (Typ):	600ns, 600ns
High Side Voltage - Max (Bootstrap):	118V
Input Type:	Inverting, Non-Inverting
Series:	--
Logic Voltage - VIL, VIH:	0.8V, 2.2V
Voltage - Supply:	9 V ~ 14 V
Gate Type:	N-Channel MOSFET
Number of Drivers:	2
Channel Type:	Synchronous
Driven Configuration:	Half-Bridge
Part Status:	Discontinued at Digi-Key
Packaging:	Tape & Reel (TR)

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IntroductionThe LM5104MX is an advanced integrated power management and gate driverIt is the modern solution for many of today\'s challenging switch mode power conversion requirements. It is a current mode smart PMIC (Power Management Integrated Circuit) family designed for high voltage and high power output applications. It integrates up to two very low operating voltage power stages, as well as various other power components, delivering a powerful, reliable and cost-efficient switch mode power supply solution. Application Fields The LM5104MX are designed to meet the requirements of high voltage, high power output systems with a high system efficiency and low voltage dropout. It has a wide range of applications such as motor control and AC interface applications, automotive motor control, high power LED lighting systems, AC power conversion core and power adapters. Features The LM5104MX is suitable for a wide range of applications, from 24V to 500V, and features a high efficiency MOSFET gate driver with low gate capacitance as well as drift compensators for overvoltage, undervoltage and over-temperature protection. In addition, the LM5104MX also integrates various system components such as efficient drive circuits, synchronous rectification, error amplifier, programmable protection, fault logging and over-current protection. Working Principle The LM5104MX follows a USP Mode operation which ensures an efficient and safe power conversion process. It starts in the OFF state, then the gate driver is slowly activated. This is done by slowly raising the voltage at the gate of the MOSFET. Once it reaches the threshold level, the MOSFET is ready to be switched on. In the next step, the driver turns the MOSFET on and off (if the load requires it) to regulate the power and provide a stable voltage output. The LM5104MX can be programmed for either linear, Pulse Width Modulation (PWM) or hysteretic operation. In PWM mode, the driver modulates the frequency and duty cycle to regulate the output voltage. The linear or hysteretic modes go one step further, by regulating the output voltage based on a set of user-defined voltage limits and loop bandwidths. ConclusionThe LM5104MX is an integrated, high voltage, high power gate driver that offers a powerful and efficient power conversion solution. It is designed to meet the requirements of high voltage, high power systems, with an ultra low operating voltage and high system efficiency. It integrates various system components, such as a high efficiency MOSFET gate driver, drift compensators, synchronous rectification, error amplifier, programmable protection, fault logging and over-current protection. It also offers USP Mode operation which ensures an efficient and safe power conversion process, and can be programmed for either linear, PWM or hysteretic operation.

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