SLA5074

Series:	--
Packaging:	Tube
Part Status:	Active
FET Type:	4 N-Channel (Half Bridge)
FET Feature:	Logic Level Gate
Drain to Source Voltage (Vdss):	60V
Current - Continuous Drain (Id) @ 25°C:	5A
Rds On (Max) @ Id, Vgs:	300 mOhm @ 3A, 4V
Vgs(th) (Max) @ Id:	2V @ 250µA
Gate Charge (Qg) (Max) @ Vgs:	--
Input Capacitance (Ciss) (Max) @ Vds:	320pF @ 10V
Power - Max:	4.8W
Operating Temperature:	150°C (TJ)
Mounting Type:	Through Hole
Package / Case:	15-SIP Exposed Tab, Formed Leads
Supplier Device Package:	15-ZIP

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An Overview of the SLA5074 Application Field and Working Principle

The SLA5074 is an advanced, low-power CMOS integrated circuit from STMicroelectronics. It is an array of two symmetrical N-channel MOSFETs optimized for low-voltage operation. This transistor array is particularly suitable for driving low-voltage and low-power switching and load-sensing applications in a wide range of electronics, from pulse-width modulator (PWM) control, to current-sensor amplifiers, and for use as logic control elements. Below, we will explore the different fields of application for the SLA5074, as well as its working principle.

Typical Applications

The SLA5074 is designed to be ideal for a wide range of versatile and efficient applications. These include:

• Current Sensing and Over Current Protection: Current Sensing requires combining an amplifier with a MOSFET, and the SLA5074 is perfect for this application thanks to its low-voltage, low-power and high-precision operation. Coupled with a precision resistor, the SLA5074 will simultaneously function as an amplifier and a switch for current sensing, PWM control and Over Current Protection (OCP) applications.
• Load Monitoring and Control: The SLA5074 can be used to monitor and control load conditions, such as current or voltage, by sensing changes in output current. This allows for fast and accurate load regulation.
• LED indication: The SLA5074 is also well suited for driving light-emitting diodes (LEDs). When operating in low-voltage power electronics, the SLA5074 can boost accuracy and dynamic performance of LED drivers.

Working Principle

The SLA5074 is composed of two symmetrical N-channel MOSFETs, optimized for low-voltage operation. In its most basic form, each of the devices consists of a gate and a source terminal. The gate terminal can be thought of as a “switch” where a voltage is applied to turn the device “on” and a voltage is removed to turn it “off”. Depending on the application, the voltage can range from 0 to 5V. When the gate voltage is high, typically above the gate threshold voltage (VGS(th)), the device will be “on” and a current will flow from the source to the drain. The SLA5074 is specially developed to operate with a low voltage, which gives it the advantages of reduced losses, lower power consumption, and higher accuracy. Additionally, with one device in the array acting as a switch and the other as an amplifier, it can have both a stronger and faster response time compared to other transistors.

Conclusion

The SLA5074 from STMicroelectronics is an ideal component for a variety of applications requiring low voltage, low power, and high accuracy operation. It can be used for current sensing and over current protection, LED indication, and load monitoring and control. With its two symmetrical N-channel MOSFETs, the SLA5074 works by modulating the gate voltage between 0 to 5V to control the current flow from the source to the drain, therefore providing excellent performance in a wide variety of power electronics applications.

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