LT3932IUFD-1#TRPBF

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LT3932IUFD-1#TRPBF is a PMIC – LED Drivers incorporated with dual channel LED driver and rich selection of features. It allows designers to drive 1 to 8 LEDs in high-brightness applications, providing high performance in data rate and C out, while still conserving power. It is suitable for a wide range of applications such as direct LED backlight, automotive, white goods, and IoT edge connected lighting.

Application Field

The LT3932IUFD-1#TRPBF is ideal for dimmabale applications such as intelligent lighting, motherboards, and display instruments. It can provide a dynamic user experience with its integrated dual channel PWM-type LED driver. The device supports full bridge and half bridge topologies, making it applicable for low- to high-end LED driver applications and cost-effective to meet customer needs. Furthermore, its tolerance for high temperature can operate up to 125℃ without performance degradation, allowing the device to offer stable and reliable operation in applications requiring wider temperature range.

The LT3932IUFD-1#TRPBF has current controlling circuitry and thermal protection for safety issues like ESD, making it ideal for applications that require reliable and safe performance. In addition, its fast pulse/pulse skip dimming feature allows the user to set it up rapidly and precisely, which is necessary for modern LED applications like sensor and display backlighting.

Working Principle

The LT3932IUFD-1#TRPBF works on the concept of multiplexed LED drivers. The device is an integrated solution which combines a dual channel LED driver, LED current controlling circuitry and thermal protection. The LED current controlling circuitry regulates the LED current independently at each channel, and it can also source/sink current. To make sure one channel does not get overloaded, the LED current controlling circuitry will monitor the sum of the LED current for both channels and limit their total current to a peak current rating.

LT3932IUFD-1#TRPBF is designed with low quiescent current operation and minimal duty cycle. These features allow the devices to operate reliably with minimum power dissipation. Also, the device will throttle LED current and luminance to protect itself from overheating. The LED channels can be programmed independently, enabling fast and easy design changes for relevant application. Moreover, an internal safety circuit will also reduce LED current when an over-current situation is detected in order to maintain optimal performance.

The LT3932IUFD-1#TRPBF features integrated pulse skip dimming control with a cold start feature. For applications requiring faster switching times, the device\'s logic interface allows the user to implement logic level based dimming control. It is also possible to control the device via a serial interface which enables the user to set up complete dimming sequences with minimal effort and in short amount of time.

Conclusion

The LT3932IUFD-1#TRPBF is a perfect solution for applications which require robust performance and control accuracy. Its combination of dual channel LED driver, LED current controlling circuitry, and thermal protection enables fast and practical dimming control. It is ideal for dimmable applications like intelligent lighting, motherboard and display instruments. Its wide operating temperature range and integrated pulse skip dimming control makes it an ideal choice for high-end LED driver applications.

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