A6217KEJTR-1-J

PMIC - LED Drivers

The A6217KEJTR-1-J is a Power Management Integrated Circuit (PMIC) for driving Light Emitting Diodes (LED) and other lighting solutions. It has a wide variety of applications, ranging from switching power supplies and regulators to LED driver circuits.

The A6217KEJTR-1-J is a buck-boost driver IC. Its main function is to efficiently boost the supply voltage while stabilizing the output current and voltage. It features a 3.2 V to 6 V voltage range and 1.2 A to 2 A current range, making it suitable for driving 1 or 2 LED string or multiple LED strings in parallel. Furthermore, its integrated high efficiency, power factor correction and current monitoring/limiting circuits help protect the LED and improve system reliability.

The A6217KEJTR-1-J is suitable for driving LEDs in automotive, industrial, medical, consumer and other lighting applications. Its high efficiency allows it to operate from a small input power, eliminating the need for bulky circuits and resulting in lower costs. In addition, the IC\'s wide range of operating voltage and current make it suitable for a variety of LED configurations.

Working Principle

The A6217KEJTR-1-J works on the principle of pulse adjustment. A voltage pulse is applied to the input of the IC to adjust the input current and target output voltage. The IC then adjusts the on-time of the switch in order to achieve the desired output voltage and current. The output voltage can be adjusted by varying the input voltage, or by using a PWM signal to control the duty cycle of the on-time pulse.

The IC also features an integrated current monitoring circuit that helps to protect the LEDs and improve system reliability. It measures the current on the output of the IC and compares it to a preset current limit. If the current exceeds the limit, the IC will latch off, thereby preventing the LEDs from being damaged due to overcurrent.

Overall, the A6217KEJTR-1-J is a highly efficient and reliable driver IC for driving LEDs and other lighting solutions. It can operate within a wide input voltage range, ensuring compatibility with a variety of power sources. In addition, its integrated current monitoring circuit helps protect the LEDs and improve system reliability.