LX24232ILQ-TR

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Introduction

LX24232ILQ-TR is a Digital Step-Down Controller IC (PMIC) used for driving LEDs. It is a high efficiency, low power, low voltage LED driver which provides superior performance and reliability for LED lighting applications. The device supports many parameters and features for safer LED driving operations. In comparison to other LED drivers in the market, the LX24232ILQ-TR ensures lower cost, power savings, and improved accuracy. This PMIC can be used in many applications where constant current source is needed, such as LED lighting and general low voltage DC loads.

Specifications

The LX24232ILQ-TR is an AEC-Q100 qualified, low power, high efficiency PMIC which meets the requirements of the latest energy efficient systems. It has very low start-up current and a standby current of 0.05µA. The device can operate with a wide range input voltage range of 4.5V to 25V. It provides a constant current output up to 600mA. Its maximum power dissipation is 5W. The package type of the device is LEAD-FREE-EIAJ-Phenolic.

Features

• High efficiency for low power consumption - up to 96%
• Constant current output up to 600mA
• Wide range of input voltage from 4.5V to 25V
• Integrated internal compensation circuit
• Short circuit protection
• Under voltage lockout
• Soft start
• LED fault detection

Application Field

The LX24232ILQ-TR can be used in many applications such as commercial, industrial and outdoor LED lighting. It can be used in LED strips, LED street lights, LED signage and LED indoor lighting. With its high efficiency and wide range input voltage, it can be used in energy efficient systems. The device is also suitable for low voltage DC loads.

Working Principle

The LX24232ILQ-TR works by regulating the output current to a set current given by an external resistor. The device uses a peak current mode control scheme with Pulse Width Modulation (PWM). The regulator senses the output current using an external sense resistor. This sense resistor then provides a feedback signal to the internal regulator which is used to adjust the output current. In the event of a short circuit, the device enters into a protection state and shuts down the output. The device also features an Under voltage Lockout (UVLO) circuit and a Soft Start, protects against overvoltage and over temperature.

Conclusion

The LX24232ILQ-TR is a high efficiency, low power, low voltage LED driver which meets the requirements of the latest energy efficient systems. It is an AEC-Q100 qualified device with a high efficiency of up to 96% and a wide input voltage range of 4.5V to 25V. The device performs various safety functions such as short circuit protection, under voltage lockout, soft start and LED fault detection. It is suitable for many applications such as commercial, industrial and outdoor LED lighting, and low voltage DC loads. The device uses a peak current mode control scheme with PWM to regulate the output current.

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