LM5114AMFX/S7003103

Logic Voltage - VIL, VIH:	--
Base Part Number:	LM5114
Supplier Device Package:	SOT-23-6
Package / Case:	SOT-23-6
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Rise / Fall Time (Typ):	82ns, 12.5ns
Input Type:	Inverting, Non-Inverting
Current - Peak Output (Source, Sink):	1.3A, 7.6A
Series:	--
Voltage - Supply:	4 V ~ 12.6 V
Gate Type:	N-Channel MOSFET
Number of Drivers:	1
Channel Type:	Single
Driven Configuration:	Low-Side
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The LM5114AMFX/S7003103 is an integrated power management device designed and manufactured by Texas Instruments. It is a power gate driver specifically designed for high-side, isolated switching applications. It is optimized for low power consumption, low parasitic capacitance and easy board layout.

Features

The LM5114AMFX/S7003103 features a wide input voltage range of 4.5V to 36V and can drive up to 5A of load current. It includes a 500mA low side driver, adjustable current limit and thermal shut-down protection. It also features a low quiescent current consumption of 10μA, under voltage lock out, individual enable and reset pins, programmable soft-start and slew rate, and a wide output voltage range of 1.4V to 36V. In addition, it comes in a low profile SOIC-8 package and is available with either 120KHz (S7003xxxx) or 230KHz (S701xxxxx) switching frequencies.

Application Field and Working Principle

The LM5114AMFX/S7003103 power gate driver is designed for use in a wide range of applications including high-side switch applications, load switching, motor control and DC-DC converters. It is ideal for applications that require high current isolation, low power loss and low capacitance.The LM5114AMFX/S7003103 works by driving a high side power switch with a logic-level voltage. This voltage is provided by the input logic pins, which can either be enabled or disabled by the user or controlled by the power supply. The LM5114AMFX/S7003103 also incorporates two low side drivers to provide transistor level voltage to the ground side of the switch. These drivers can be enabled or disabled as needed.The output of the LM5114AMFX/S7003103 is also adjustable through an internal current limiter and thermal shut-down. The adjustment is regulated by a small resistor connected to the VREF pin. This allows users to control the power output of the LM5114AMFX/S7003103 and protect the power components from overcurrent damage.

Conclusion

The LM5114AMFX/S7003103 is a versatile, high-side gate driver with an adjustable current limiter and under-voltage lock-out designed for use in a variety of applications. It is suitable for battery powered applications and can be used for load switching and motor control. The integrated features of the LM5114AMFX/S7003103 provide a low power, easy to use solution for the power switches in your designs.

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