LT3965EFE

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The LT3965EFE is an integrated switching regulator specifically designed for driving strings of up to five LEDs while maintaining output accuracy of ±2%. Operating over an input voltage range of 2.7 to 6 V, the highly efficient LT3965EFE delivers up to 100 mA of LED current while requiring only an external inductor and four capacitors, making it an excellent choice for space-constrained LED projects.

LT3965EFE Certified as a PMIC- LED Driver

The LT3965EFE is a PMIC-LED driver that enables capturing of the desired LED current for each LED and for each LED string simultaneously. Its integrated commutating P-channel FET allows reverse current protection, regardless of input power. The LT3965EFE utilizes digital logic to allow the programmer to adjust LED current and to select between multiple LED stringing configurations, such as series and parallel, without the need for externally switching capacitors.

LT3965EFE Working Principle

As a switching regulator, the LT3965EFE utilizes pulse width modulation, or PWM, to achieve its output current accuracy. The LT3965EFE operates in a four-phase, fixed-frequency phase-shift mode. This mode is ideal for LED applications due to the fact that it requires fewer external components and offers near-uniform current distribution across the LEDs.

The four phases of the LT3965EFE are comprised of two switches, which are on/off and phase-shifting together to create four different timing windows. During each phase, the inductor operates in a different direction. These four timing windows are what control the average output current.

The LT3965EFE also has a current sense circuit that allows it to sense the current flowing through the LEDs and schedule the timing windows for the switching of the pulses. By monitoring and controlling the output current in this manner, the LT3965EFE can maintain the output current accuracy of ±2%, which is ideal for LED applications.

LT3965EFE Application Field

The LT3965EFE is ideal for lighting applications that require a high-current, accurate regulation of the output current such as systems that require multiple strings of up to five LEDs in series or parallel. Additionally, due to its integrated reverse current protection feature and its small size, the LT3965EFE is also well-suited to automotive applications and other space-constrained projects.

Due to its high efficiency and accuracy, the LT3965EFE is ideal for applications that require accurate output current regulation of multiple LEDs and output current of up to 100 mA. The ability to drive up to five LEDs while only requiring minimal external components makes the LT3965EFE an excellent choice for LED projects.

The specific data is subject to PDF, and the above content is for reference