AL16937-30BAS7-13 Integrated Circuits (ICs)

Voltage - Output:	400V
Supplier Device Package:	7-SO
Package / Case:	8-SOIC (0.154", 3.90mm Width), 7 Leads
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 105°C (TA)
Applications:	Lighting
Dimming:	Yes
Frequency:	4kHz
Current - Output / Channel:	3A
Series:	--
Voltage - Supply (Max):	18V
Voltage - Supply (Min):	8.5V
Number of Outputs:	1
Internal Switch(s):	Yes
Topology:	Step-Down (Buck), Step-Up (Boost)
Type:	AC DC Offline Switcher
Part Status:	Active
Packaging:	Tape & Reel (TR)

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AL16937-30BAS7-13 LED Driver PMIC

The AL16937-30BAS7-13 is a LED driver PMIC (Power Management IC) designed to provide LED illumination for applications such as automotive headlights, taillights, and markers. The AL16937-30BAS7-13 chip utilizes a buck-boost topology which enables it to drive two separate LEDs from a single IC package. The IC operates from a wide input voltage range from 4.75V to 27V, and has an adjustable output current range of 0.2A to 3A.

Application Field

The AL16937-30BAS7-13 applies to a wide range of automotive lighting applications, including headlights, taillights, parking lights, and markers. It is designed to provide a constant current to drive two LEDs in parallel. The device is well suited for use in automotive headlamps and tail lamps, thanks to its small size, low cost, and the use of the buck-boost driver topology.

Working Principle

The AL16937-30BAS7-13 operates using a buck-boost driver topology, which enables it to drive two separate LEDs from a single IC package. The chip is set up to support two different LED lighting chains (LED1 and LED2) with individual on/off control, allowing for independent PWM control.The IC features a programmable current limit, allowing users to adjust the output current to suit the requirements of their application. The IC also features a thermal shutoff circuit which prevents the device from overheating and keeps it within safe operating temperature limits.The IC is also equipped with reverse current protection, which prevents current from flowing backwards through the IC, and short-circuit protection which prevents the IC from over-drawing current or damaging the related components. The integrated over voltage protection prevents the IC from drawing too much voltage and damaging the connected components.The chip offers low noise, high efficiency, and low power consumption, which makes it ideal for automotive lighting applications.

Conclusion

The AL16937-30BAS7-13 is a versatile LED driver PMIC which offers multiple features, such as reverse current protection, short-circuit protection, and over-voltage protection. It is suitable for a wide range of automotive lighting applications, due to its small size, low cost, and the use of the buck-boost driver topology. The device operates from a wide input voltage range from 4.75V to 27V, and has an adjustable output current range of 0.2A to 3A. With its low noise, high efficiency, and low power consumption, the AL16937-30BAS7-13 is an ideal choice for automotive lighting applications.

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