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AL1782 (NRND)

NRND = Not Recommended for New Design

Dual-Channel Dimmable Linear LED Driver

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Description

The a AL1782, a dual-channel dimmable Linear LED driver with PWM dimming control, is targeted for 2-Channel tunable Smart Connected Lighting (SCL) applications. It serves as the LED driving element along with AC-DC Power Conversion Block and Intelligent wireless MCU as an emerging connected lighting applications.

Feature(s)

Input Voltage Range: 6.5V to 30V
Independent PWM dimming control for each channel
Adjustable Reference Current by external reference resistors
LED Current Accuracy ≤ ±4%
Maximum LED current 1500mA for AL1781 and 750mA Per channel for AL1782
Adaptive Thermal Management (ATM) scheme to minimize power dissipation
High Frequency E-flicker free PWM dimming
Internal Protections:

Undervoltage Lockout (UVLO);
LED string open/short protection;
Over-temperature protection (OTP): Thermal shutdown and auto thermal recovery

Fault Reports: UVLO, OTP, LED Open/Short

Application(s)

2-Channel Tunable White SCL Bulbs
Multiple-Channel of SCL Bulbs
Smart Connected LED Tubes, Panel Lights, Troffers, and Ceiling Lights

Specifications & Technical Documents

Product Parameters

Accuracy (%)	4
Channel Max. Output Current (mA)	750
Compliance (Only Automotive Supports PPAP)	Standard
Dimming	PWM
LED Current (A)	750
LED Current Sense Voltage (mV)	N/A
Maximum Supply Voltage (V)	30
Maximum V_{OUT (V)}	N/A
Minimum Supply Voltage (V)	6.5
Number of Channels	2
Output Current (A)	750
AEC Qualified	No
Temperature Range (°C)	-40 to 105
Topology	Linear LED Driver

Technical Documents

SPICE Model

AL1782_PSPICE_MODEL-v2.rar

Recommended Soldering Techniques

TN1.pdf

Purchase & Availability

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Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN #	Issue Date	Implementation Date	Subject
PCN-2770	2025-10-30	2025-10-30	Add Fab Site Code, Country of Diffusion (COD) and Assembly Site Origin (ASO) on Product and Shipping Labels for all Diodes Products
PCN-2610	2023-03-30	2023-09-30	Device End of Life (EOL)