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AL1793AFE-13

DIOAL1793AFE-13

Diodes Incorporated
LED Driver IC 3 Output Linear Analog, PWM Dimming 500mA U-DFN4030-14
Active14,691 in stock
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Overview

The AL1793AFE-13 is a three-channel linear LED driver designed for smart connected lighting applications. It supports both PWM and analog dimming across a wide input voltage range of 6.5V to 30V, delivering up to 500mA per channel. The device integrates fault reporting and protection features in a compact U-DFN4030-14 package to simplify system design and reduce BOM costs.

Why Choose This Part

The IC features e-flicker free high-frequency PWM dimming and deep dimming capabilities for high-quality light output. It offers robust protection including UVLO, OTP, and LED open/short protection with dedicated fault reporting pins. The linear architecture eliminates the need for external inductors, significantly reducing electromagnetic interference (EMI) and PCB footprint.

Applications

Tunable White Lighting
Precise control over two or three LED strings to adjust color temperature in smart bulbs and troffers.
RGB Accent Lighting
Independent channel control for color-mixing applications in smart home and architectural environments.
Smart LED Tubes
Integration into connected LED tubes where high-frequency PWM is required to eliminate visible flicker.
Industrial Indicator Panels
Reliable multi-channel status indication with integrated fault reporting and power good signals.

Key Specifications

Type Linear
Dimming Analog, PWM
Applications Lighting
Mounting Type Surface Mount
Package / Case 14-UFDFN Exposed Pad
Voltage - Output 30V
Number of Outputs 3
Internal Switch(s) Yes
Operating Temperature -40degC ~ 125degC (TA)
Voltage - Supply (Max) 30V
Voltage - Supply (Min) 6.5V
Supplier Device Package U-DFN4030-14
Current - Output / Channel 500mA

Getting Started

Designers should calculate the external reference resistor (RSET) to define the maximum LED current for the application. The PWM pins should be driven by a microcontroller to achieve dimming, while the Power Good (PG) and Fault pins can be monitored for system health. Ensure the U-DFN4030-14 package's thermal pad is properly soldered to a large copper area to manage heat dissipation at 500mA per channel.