AL5890-15P1-13

Introduction of AL5890-15P1-13
The AL5890-15P1-13 is a Constant Current LED Driver IC from Diodes Incorporated. It is a high-efficiency, digital LED driver for driving up to 15 LEDs in parallel. This product is specifically designed for Power Management IC (PMIC) applications, specifically LED lighting applications. It is an ideal IC for digital control of LEDs in applications such as LCD backlighting, automotive lighting, digital billboards, and LED lighting for buildings.

Application Field of AL5890-15P1-13
The AL5890-15P1-13 is a PMIC LED Driver IC and is intended to drive LED applications that require current to be set in an analog fashion. The IC is designed to increase the efficiency of LED systems by reducing the number of external resistors required in the design. This IC enables the user to set an accurate and constant current through the LED without the need for an external current-setting resistor. This makes the IC suitable for use in applications that require a constant current such as LCD backlighting, automotive lighting, digital billboards, and LED lighting for buildings.

Features of AL5890-15P1-13
The AL5890-15P1-13 incorporates features such as:

• On-chip voltage regulator that supports input voltages ranging from 4.5V to 28V.
• Adjustable current limit for each LED that can be set using external resistors.
• Internal Schottky diode to clamp input voltage.
• On-chip thermal protection.
• PWM dimming control.

Working Principle of AL5890-15P1-13
The AL5890-15P1-13 is a PMIC LED Driver IC and is designed to drive up to 15 LEDs in parallel. The IC has an on-chip voltage regulator that sets the output voltage for the desired LED current. The voltage regulator is connected to the LED power terminals and an external resistor is used to set the current. The current is then set to the desired level by adjusting the value of the external resistor. The IC also incorporates an internal Schottky diode connected to the LED power terminals. This diode is used to clamp the voltage applied to the LED power terminals and prevents the LED from receiving excessive current.

In addition, the IC provides a thermal protection circuit that limits the maximum power dissipation in the IC. The thermal protection circuit monitors the IC temperature and shuts down the IC if the temperature exceeds the maximum allowable limit. The IC also provides a PWM dimming control. The PWM dimming control is used to adjust the LED brightness. The PWM dimming control is used to set the LED current by modulating the LED current using PWM pulses of varying frequency and duty cycle.

Conclusion
The AL5890-15P1-13 is a PMIC LED Driver IC from Diodes Incorporated. It is designed for use in LED lighting applications such as LCD backlighting, automotive lighting, digital billboards, and LED lighting for buildings. The IC has an on-chip voltage regulator that sets the output voltage for the desired LED current and an internal Schottky diode connected to the LED power terminals to clamp the voltage applied to the LEDs. The IC also incorporates thermal protection and PWM dimming control features. These features make the AL5890-15P1-13 an ideal IC for digital control of LEDs in lighting applications.