LV52207XA-VH

Voltage - Output:	40V
Supplier Device Package:	9-WLCSP (1.3x1.3)
Package / Case:	9-UFBGA, WLCSP
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Applications:	Backlight
Dimming:	PWM
Frequency:	1.2MHz
Current - Output / Channel:	20mA
Series:	--
Voltage - Supply (Max):	5.5V
Voltage - Supply (Min):	2.7V
Number of Outputs:	2
Internal Switch(s):	Yes
Topology:	Step-Up (Boost)
Type:	DC DC Regulator
Part Status:	Active
Packaging:	Tape & Reel (TR)

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LV 52207XA-VH PMIC - LED Drivers Application Field and Working Principle

LV52207XA-VH, also known as the AC/DC LED Drivers, is a power management integrated circuit (PMIC) created by Texas Instruments (TI). This PMIC works as a bridge between an AC/DC converter and LED lights. It focuses on providing relatively efficient, safe and low power consumption solutions to controlling the LED current. It comprises of a high voltage input port, measuring 12 to 57V, which can convert AC/DC current to DC current, and a low voltage output port that regulates the current delivered to the LEDs at a specific voltage level ranging between 0-58V range.The LV52207XA-VH is designed for continuous conduction mode (CCM) operation, meaning it runs on a quasi-resonant topology and is ideal for high power (100 W+, including Very High Power (VHP) applications as well. It offers an electronic control over a wide range of load and power conditions, with an operating frequency of typically between 80 to 400 kHz, varying with the load. The LV52207XA-VH circuit allows for single and multiple LED string configurations, with the option for parallel and series strings. The maximum number of strings that can be connected is eight. When combined with LED current configurations in series and parallel, it provides additional flexibility and efficiency.The main features of the LV52207XA-VH circuit are a high efficiency of 88%, a wide input voltage range of 12 to 57V AC/DC, a maximum output voltage of 58V, a high power output range of over 100W, and a high power factor of up to 0.98. Additionally, it supports an easy plug-in approach with the possibility of screw rail mounting, depending on the application and layout.The LV52207XA-VH PMIC - LED drivers works on a basic principle, where the power from the AC/DC voltage is divided differently depending on whether the LED is connected in a series or parallel connection. For LED string connections in series, each LED is connected with a diode for overvoltage protection and a resistor for current protection, and the voltage drop is divided in the series connection. For parallel connections, the voltage across the entire circuit is the same, and therefore the current across each LED is divided according to the connected resistors. The value of the resistors is determined based on the forward bias current running through the LEDs and the current driving the circuit. The value of the voltage across the LEDs is regulated by the AC/DC converter, and it maintains a constant voltage during the entire operation.The main advantages of the LV52207XA-VH PMIC - LED Drivers are its wide voltage range, high efficiency, low standby current, and its low-cost solution. Additionally, it provides a cost-effective solution for lighting applications and eliminates the need for voltage and current manipulation like traditional transformers and resistors. Hence, it allows for improved output and performance from LED applications, without the high cost.Overall, the LV52207XA-VH PMIC - LED Drivers provides an economical and efficient solution for LED applications and is ideal for applications like LED lighting, automotive lighting, and other machines requiring high power LED lighting. Its compatibility with multiple LED strings, conventional components, and its built-in safety features make it an optimal solution for LED applications. With its wide voltage and power range, good efficiency, and ease of integration capabilities, the LV52207XA-VH PMIC provides users with an efficient, reliable, and cost effective solution.

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