LM3421Q1MHX/NOPB

Voltage - Output:	3 V ~ 72 V
Base Part Number:	LM3421
Supplier Device Package:	16-HTSSOP
Package / Case:	16-TSSOP (0.173", 4.40mm Width) Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Applications:	--
Dimming:	Analog, PWM
Frequency:	2MHz
Current - Output / Channel:	--
Series:	Automotive, AEC-Q100
Voltage - Supply (Max):	75V
Voltage - Supply (Min):	4.5V
Number of Outputs:	1
Internal Switch(s):	No
Topology:	SEPIC, Step-Down (Buck), Step-Up (Boost)
Type:	DC DC Controller
Part Status:	Active
Packaging:	Tape & Reel (TR)

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PMIC - LED DriversLEDs are among the most common lighting components used in numerous applications ranging from domestic and general lighting to transportation, automotive, and more. Maxim Integrated LM3421Q1MHX/NOPB is a high-efficiency QSled driver specifically designed for use in high-power LED applications. It features an integrated current-mode, high-side buck regulator controller with all necessary components for designing, building and controlling LED-based lighting applications.This device can be used to drive up to eight strings of LEDs, with up to 10 LEDs connected in series within each string. It has an adjustable dimming range with extremely low input ripple, making it ideal for automobile, computer and backlight applications. The LM3421Q1MHX/NOPB is a cost-effective solution for driving high-power LED loads in various lighting applications.The LM3421Q1MHX/NOPB features an integrated current-mode high-side buck regulator controller and all necessary components for a 4.0A LED driver, including a dual-mode differential input stage, an adjustable current-mode buck regulator, an adjustable voltage feedback regulator, an adjustable current feedback regulator and an adjustable input voltage regulator. Each of these components can be adjusted for optimal performance.The LM3421Q1MHX/NOPB provides a dimming range of 0.1% to 100%, enabling dimming of up to 10 LEDs in series. Furthermore, its low on-resistance integrated MOSFET switches minimize power losses and enable high-efficiency operation. The device is designed to operate with a wide input voltage range and can support up to 4.0A of LED current in each string.The LM3421Q1MHX/NOPB also offers a wide range of input and output protection features designed to provide robust protection to the LED driver circuitry. This includes an input over-voltage protection circuit, an open LED protection circuit, an over-current protection circuit and an under-voltage lockout circuit. These features help ensure the safe operation of the LED driver and protect against power-on surges and overloads.The LM3421Q1MHX/NOPB is well suited for application in various automotive and consumer-grade applications, such as exterior lighting, interior lighting, backlights, ambient light applications and more. The device is available in a surface-mount package and is RoHS compliant. With its broad features and efficiency benefits, the LM3421Q1MHX/NOPB offers a cost-effective solution for driving high-power LED loads in diverse lighting applications.

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