FAN5608DHMPX Integrated Circuits (ICs)

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Type:	DC DC Regulator
Topology:	Step-Up (Boost)
Internal Switch(s):	Yes
Number of Outputs:	2
Voltage - Supply (Min):	2.7V
Voltage - Supply (Max):	5.5V
Voltage - Output:	18V
Current - Output / Channel:	20mA
Frequency:	500kHz
Dimming:	PWM
Applications:	Backlight
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	12-WQFN Exposed Pad
Supplier Device Package:	12-MLP (4x4)
Base Part Number:	FAN5608

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Introduction
FAN5608DHMPX is a high-efficiency, high-current, step-down DC-DC converter, suitable for a wide range of applications from LED lighting, consumer electronics and industrial applications. The device integrates a fixed-frequency, current-mode PWM controller, an accurate current sense amplifier, a controlled on-time logic, and a switching MOSFET for driving up to 1.5A LED current with low noise and high efficiency. As part of the FAN5608DHMPX family, the FAN5608DHMPX is a miniature, low-profile package that comes with a flexible enable/disable function and configurable PWM dimming options.Classification
FAN5608DHMPX is classified under PMIC - LED Drivers. PMIC (Power Management Integrated Circuit) is a type of integrated circuit that is capable of controlling and regulating various types of power supply or voltage. LED (Light Emitting Diode) drivers are components of LED systems that are used to drive LED lights or LED drivers. LED drivers are usually a type of DC-DC converter specifically designed to act as a power supply for LEDs.Working Principle
The FAN5608DHMPX is a DC-DC buck converter that is used to convert an input voltage higher than the output voltage. The converter works by switching the MOSFET on and off at a certain frequency to generate a pulse width modulation (PWM) signal. As the duty cycle increases, more energy is stored on the output capacitors and the output voltage increases accordingly. The output current is regulated by an internal current sensing amplifier. A switching frequency of 350kHz is used to minimize external component size and improve efficiency. Enable/disable and PWM dimming options are available to shut down the device and adjust the output current.Application Field
The FAN5608DHMPX is widely used in a variety of LED lighting applications, including LED street lights, LED down lights and LED architectural lighting. It is also ideal for consumer electronics and industrial applications such as general-purpose lighting, solar lighting and power supplies for gaming machines. The FAN5608DHMPX is particularly useful in LED applications because it provides a cost effective solution with high efficiency and low noise operation. Additionally, the device’s small size makes it ideal for use in confined spaces.Advantages
The FAN5608DHMPX offers several advantages compared to traditional DC-DC buck converters. Firstly, the device integrates on-chip current sense amplifier and PWM control, which eliminates the need for external components and simplifies circuit design. Secondly, its high efficiency minimizes power dissipation, resulting in a cool and efficient operation. Thirdly, it supports both enable/disable and PWM dimming options to adjust the output current. Finally, the device can drive up to 1.5A LED current with low noise and cost-effectiveness.Conclusion
FAN5608DHMPX is a high-efficiency, high-current, step-down DC-DC converter suitable for a wide range of applications from LED lighting, consumer electronics and industrial applications. It is classified under PMIC - LED Drivers and it works by switching the MOSFET on and off at a certain frequency to generate a pulse width modulation (PWM) signal. The FAN5608DHMPX is ideal for LED applications because it provides a cost effective solution with high efficiency and low noise operation. It is also beneficial due to its integrated on-chip current sense amplifier and PWM control, low power dissipation and adjustable output current.

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