LP8543SQE

Voltage - Output:	40V
Base Part Number:	LP8543
Supplier Device Package:	24-WQFN (4x4)
Package / Case:	24-WFQFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-30°C ~ 85°C (TA)
Applications:	Backlight
Dimming:	PWM
Frequency:	625kHz ~ 1.25MHz
Current - Output / Channel:	60mA
Series:	--
Voltage - Supply (Max):	22V
Voltage - Supply (Min):	5.5V
Number of Outputs:	7
Internal Switch(s):	Yes
Topology:	Step-Up (Boost)
Type:	DC DC Regulator
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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LP8543SQE Application Field and Working PrinciplePMIC, short for power management integrated circuits, are used to manage and control power distribution within circuits. This can be anything from controlling the fan speed on a laptop or regulating the power supply on a mobile phone. One such PMIC device is the LP8543SQE LED driver, which is designed to control LED lighting and provide a reliable power source for LED applications.The LP8543SQE LED driver is specifically designed to power LED’s in high-power and high brightness applications, such as car headlights and indoor lighting. It is capable of providing up to 10 amps of output current, and can accommodate a wide range of LED lighting configurations, from single LEDs to large arrays of LEDs. The on-board Auto-Balancing technology ensures that each LED in a series-connected array will receive an equal amount of current, ensuring uniform brightness.The LP8543SQE LED driver also has a wide operating temperature range, allowing it to operate in high-power environments such as industrial or mining applications. It has an adjustable voltage output and power regulation mode, making it suitable for a wide variety of LED lighting applications. Additionally, the device has an integrated Charge Pump and built-in overvoltage and overcurrent protection, giving it the ability to detect and respond to short circuit conditions.The LP8543SQE LED driver works by taking in input power, regulating it to the desired voltage, and providing the power to the LED via a PWM driver circuit. The device also has an integrated voltage supervisor, which monitors the input voltage and provides a warning if it falls outside the range required for proper operation.When selecting the LP8543SQE LED driver for a particular application, it is important to consider the input voltage and output current, as well as the size and number of LEDs in the system. This device has a maximum input voltage of 45V and a minimum output current of 10mA, so it is important to ensure that the selected system is within its operating voltage and current range. Additionally, the device should be sized accordingly to ensure that the output current is not too low or too high for the system requirement.Overall, the LP8543SQE LED driver is a highly reliable and efficient device for powering LEDs in high-power and high brightness applications. With its wide temperature range, adjustable output voltage and power regulation mode, integrated voltage supervisor, and onboard Auto-balancing technology, the LP8543SQE provides a reliable and cost-effective solution for LED lighting applications.

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