IS31FL3740-QFSL4-TR

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Power management integrated circuit (PMIC) is a type of integrated circuit (IC) used for low-power and application-specific integrated circuit with limited power. The IC is composed of several voltage regulators, a linear voltage regulator, a dc-dc converter, a voltage detector and a clock generator, etc., and can fully meet the requirements of system power management. IS31FL3740-QFSL4-TR is the type of PMIC. It is a single-chip light source driver which features a 27V digital input, a 16K step 24 current source and 20 programmable channels.

IS31FL3740-QFSL4-TR Application Field

IS31FL3740-QFSL4-TR is carefully designed for LED drive field, its application is mainly used for LED Matrix for 4*4 application and low divergence LED scanning. The LED scan driving is designed for low divergence LED display, which is suitable for LED display, small to medium size indoor and outdoor displays, architectural decoration, advertising light box, stage lighting, costume lighting, product lighting, and various decorative lighting applications.

In addition, it is also suitable for products such as intelligent engineering lights, lamps, light strip, curtain lights, indoor and outdoor advertisings, car lights, automotive decorative lights and so on.

IS31FL3740-QFSL4-TR Working Principle

The IS31FL3740-QFL4-TR is a 4-channel LED light source driving solution for applications such as LED display, small to medium size indoor and outdoor display. It has a digital input of 27V and 16K steps of 24 current source. The device allows 20 programmable channels with high accuracy control and driving capability. The chip is highly configurable and programmable, with individually switchable channels for driving and multiple profiles for different applications.

The IC offers an extremely low power consumption, with a typical quiescent current of only 4.5mA, and an idle current of less than 500nA. The power input range is up to 27V, and the maximum output current per channel is up to 24mA. The device uses a pin-controlled interface to allow users to configure the parameters and profiles. The chip also features an I2C/SPI interface to allow users to monitor and control the drivers. The chip features a built-in temperature monitor and protection functions to protect it from damage due to over temperature.

The power supply utilised in this device can provide a wide range of output currents, which makes the device ideal for a variety of LEDs with different power requirements. Additionally, the device is capable of current and voltage monitoring and provides adjustable PWM control and multiple profiles for different requirements. The IS31FL3740-QFSL4-TR is an excellent solution for LED scanning and matrix applications.

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