MP3412EJ-LF-Z

Voltage - Output:	2.5 V ~ 5 V
Supplier Device Package:	TSOT-23-6
Package / Case:	SOT-23-6 Thin, TSOT-23-6
Mounting Type:	Surface Mount
Operating Temperature:	-20°C ~ 125°C (TJ)
Applications:	Backlight
Dimming:	PWM
Frequency:	1MHz
Current - Output / Channel:	1.1A (Switch)
Series:	--
Voltage - Supply (Max):	4.4V
Voltage - Supply (Min):	0.8V
Number of Outputs:	1
Internal Switch(s):	Yes
Topology:	Step-Up (Boost)
Type:	DC DC Regulator
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Application Field and Working Principle of MP3412EJ-LF-Z PMIC - LED Drivers

Introduction to MP3412EJ-LF-Z

MP3412EJ-LF-Z from Micro-Power is a high efficiency DC/DC synchronous buck converter IC that operates from 2.5V to 5V input voltage and provides a regulated output current up to 500mA. An internal reference voltage and a temperature compensating PWM are designed to maximize the output current accuracy and stability. The MP3412EJ-LF-Z also features Daisy Chain, Parallel Boost, and dimming control interface, ideal for applications such as lighting systems, LCD displays, and automotive applications.

Application Field of MP3412EJ-LF-Z

The MP3412EJ-LF-Z PMIC - LED Drivers is primarily used in applications such as lighting systems, LCD displays, and automotive applications. It can be used for the control, regulation and dimming of illuminating devices, with its high efficiency and accurate output current. Its temperature compensation, sleep and wake-up functions are also helpful for applications sensitive to thermal changes. Moreover, the device is suitable for daisy chain and parallel light bars, as well as to dim LEDs from 0% to 100%.

Working Principle of MP3412EJ-LF-Z

The basic principles of the MP3412EJ-LF-Z PMIC - LED Drivers is that of a buck type DC/DC converter, with a control loop providing stability, and the output of the device determined by the input voltage, the reference voltage and the output current. The MP3412EJ-LF-Z PMIC features a synchronous buck mode, which means that two or more switching MOSFETS comprise the converter circuit, with the output being either the high side PMOS or the low side NMOS, depending on the switching state of the circuit.The synchronous buck mode has superior performance as compared to the traditional buck mode due to low output voltage ripple and minimum switching losses.The switching of the MOSFETS is controlled by an internal high-efficiency PWM to optimise the efficiency of the device, and the output current is regulated by an internal high-accuracy reference voltage.The PWM compensates for temperature variations and ensures stable output current over the ambient temperature range. It can also be used for dimming LED’s from 0% to 100%, when combined with an external pulse-width-modulation signal. The MP3412EJ-LF-Z also features a wide range of safety and protection features, such as over-voltage protection, under-voltage protection, over-temperature protection and short-circuit protection which further increases the stability and safety of the device.

Conclusion

The MP3412EJ-LF-Z PMIC - LED Drivers is an efficient and accurate DC/DC synchronous buck converter IC. It features a temperature compensating PWM, Daisy Chain, Parallel Boost and dimming control interface, making it suitable for a range of lighting, LCD displays and automotive applications. Its synchronous buck mode increases the efficiency, and its wide range of safety features provides a reliable and safe solution for controlling lighting and other illumination devices.

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