AP1651BEL Integrated Circuits (ICs)

Voltage - Output:	400V
Supplier Device Package:	14-SOP
Package / Case:	14-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 105°C (TA)
Applications:	Lighting
Dimming:	Analog, PWM
Frequency:	--
Current - Output / Channel:	--
Series:	--
Voltage - Supply (Max):	26V
Voltage - Supply (Min):	11V
Number of Outputs:	1
Internal Switch(s):	No
Topology:	Step-Down (Buck)
Type:	DC DC Controller
Part Status:	Not For New Designs
Packaging:	Tape & Reel (TR)

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AP1651BEL is a type of PMIC – LED Driver that can be used in a wide range of application fields. This type of drivers has the capability of providing a constant current to multiple LEDs in series or parallel in multi-functional LED lighting applications. It can also provide a constant current in low-voltage applications while offering fast transient response, good compensation performance and high output power. This type of driver is commonly used in lighting applications, such as automotive headlight assemblies, exterior LED spotlights, interior LED lights for track, and street lighting.The working principle of AP1651BEL is based on the switching regulator topology. It uses a series of high-chain transistors to regulate the current and provide a constant output current to LED in different applications. The voltage source is supplied from an external power source to the AP1651BEL. The voltage is stepped down by the series of transistors and is converted into a constant current for the LEDs.The AP1651BEL features a comprehensive set of features that allow for maximum flexibility and efficiency in different LED lighting applications. It provides the user with full control over the output current, temperature, current sensing, and frequency response. Furthermore, it has an adjustable On/Off time, on-chip oscillator, and a variable analog input voltage regulator.The AP1651BEL provides an output current range of 3V to 32V, with a maximum current of 6A. It also offers fast transient reaction times and a low quiescent current. This driver is protected against over-temperature, over-current, over-voltage and under-voltage conditions.The AP1651BEL is also equipped with a range of other features, such as automatic frequency adjustment based on the output power, adjustable step response time, adjustable soft start, adjustable output voltage compensation, and high output ripple frequency. Additionally, it features low output voltage ripple, low self-inductance, and high output power.In conclusion, the AP1651BEL is a type of PMIC – LED driver that has been designed to provide a constant current for multiple LEDs in a wide range of applications. It features a comprehensive set of features to ensure maximum efficiency and flexibility in different LED lighting applications. Thus, it is well suited for automotive headlight assemblies, exterior LED spotlights, interior LED lights for track, and street lighting applications.

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