IS31FL3235A-QFLS2-TR

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The IS31FL3235A is a CMOS analog and mixed-signal integrated circuit from Isamu Technologies which offers a cost-effective solution for driving LEDs. As a Power Management and Interface Electronic (PMIC-LED driver), it is particularly suited for controlling RGB and dual RGBW LED strings.

The IS31FL3235A offers a wide range of applications, including LED lighting, automotive lighting, white goods, STBs, toys, and IoT products. It provides an ideal solution for challenging applications where a dual LED driver with flexibility and programmability is required.

The IS31FL3235A is a small, low-cost, low-power LED driver with an integrated power switch providing current control and LED dimming without additional circuitry. It also integrates an on-chip voltage regulator, eliminating the need for an external power supply and allowing simpler, more portable solutions with better stability.

The IS31FL3235A consists of two output amplifiers, each with eight current sinks with independent control. Each output amplifier can handle up to eight LEDs, allowing for up to 16 LEDs in total to be controlled. It also features four independent pulse width modulation (PWM) brightness settings, which allow for up to 16 dimming settings for a single LED.

The LED drivers are flexible and configurable allowing for various LED combinations and brightness levels. They can be used to create smooth and uniform brightness over multiple LEDs, or to create dramatic and colorful effects using multiple LED strings. LEDs can also be dimmed electronically, with the brightness level adjustable across a wide range.

The IS31FL3235A’s core operating principle is to sink current through the LEDs at the output. The power is regulated by adjusting the current flow through the output sinks. This is done through the integrated Pulse-Width Modulation (PWM) circuitry, which operates at 10mHz and has a 91dB signal-to-noise ratio. The duty cycle of the signal controls the brightness of the LEDs.

In addition to the powerful integrated circuits, the IS31FL3235A also features a number of other features including an on-board I2C bus, which allows for further customization and control of the system. The I2C bus is supported by sophisticated software tools that allow developers to quickly program the driver assemblies according to their specific requirements.

The IS31FL3235A is an ideal solution for a wide range of applications that require a powerful, cost-effective and configurable PMIC-LED driver. It offers a single chip solution with support for up to sixteen LEDs, and efficient current control and dimming without additional circuitry. The integrated I2C bus and software tools provide developers with further customization and control, allowing them to quickly develop complex LED assemblies without needing to invest in extra components.

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