A8502KLPTR-T Integrated Circuits (ICs)

Series:	Automotive, AEC-Q100
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	DC DC Regulator
Topology:	Step-Up (Boost)
Internal Switch(s):	Yes
Number of Outputs:	2
Voltage - Supply (Min):	5V
Voltage - Supply (Max):	40V
Voltage - Output:	--
Current - Output / Channel:	120mA
Frequency:	580kHz ~ 2.3MHz
Dimming:	Analog, PWM
Applications:	Automotive, Backlight
Operating Temperature:	-40°C ~ 125°C (TA)
Mounting Type:	Surface Mount
Package / Case:	16-TSSOP (0.173", 4.40mm Width) Exposed Pad
Supplier Device Package:	16-TSSOP-EP
Base Part Number:	A8502

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PMIC – LED Drivers

A8502KLPTR-T Application Field and Working Principle

The A8502KLPTR-T is a PMIC – LED Driver, specifically designed by Allegro MicroSystems, a leading manufacturer of power management and motor control integrated circuits. It is a monolithic switching regulator that is ideal for use in LED lighting applications.The A8502KLPTR-T LED driver is a self-contained, easy to use, constant current source that features integrated current sense and voltage regulation, providing a high power density. It integrates an internally fixed power stage, consisting of a high-side switch, PWM control circuitry, an adjustable current sense amplifier and an adjustable voltage regulator. The power stage is designed to deliver constant current over a wide range of input voltages, with a low-dropout (LDO) voltage regulator that provides a regulated output voltage. The LDO can be used to adjust the output voltage, to support different types of LEDs. The current sense amplifier can be used to monitor the output current, for diagnostics or for feedback control to control the LEDs or to protect their circuits from over-current. The power stage is designed to deliver constant current over a wide range of input voltages, from 8 V to 42 V DC with 2.2 V to 10 V adjustable output voltage. It provides a peak output current of 500 mA. The A8502 enables low-power LED lighting applications to be designed using different architectures. The low drop-out voltage regulator fulfills an important role, as it enables the LED supply regulation without the need of an additional secondary regulator.The A8502KLPTR-T LED driver is suitable for a range of general lighting applications, including low-power LED lighting, adjustable LED lighting and automotive LED illumination. It is also suitable for emergency lighting applications. In terms of operation, the A8502KLPTR-T LED driver allows the output voltage to be adjusted manually or via an external control signal and also allows dimming control. It can operate in either PWM or analog closed-loop control mode, ensuring linear and smooth LED lighting solution. The A8502KLPTR-T LED driver provides an efficient and reliable LED driver solution which meets the requirements of the motor control and lighting application markets. Its versatility makes it suitable for a wide range of LED applications, from simple on/off applications, to sophisticated dimming control. Overall, the A8502KLPTR-T LED driver is an ideal option for providing a high power density, high efficiency, low noise, and low EMI performance for LED lighting solutions. With a wide input range and adjustable output voltage, it is suitable for a variety of applications.

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