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AL1676 (Not Recommended for new design)

NRND = Not Recommended for New Design

UNIVERSAL HIGH POWER FACTOR BUCK LED DRIVER

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Description

The AL1676 is a universal AC input (85~277 VAC), high power factor (PF) and high efficiency Buck LED driver. The AL1676 topology provides accurate constant current (CC) with good line and load regulation, operating at boundary conduction mode (BCM) to ease in EMI/EMC qualification and testing to meet the latest regulatory laws.

Feature(s)

>90% Efficiency
Universal 85 to 277 VAC Input Range
Multiple Options for Internal MOSFET
Tight Output Current Tolerance: ±3%
Low Startup Current: 100µA
Low Operation Current: 170µA (5KHs Switching)
Single Winding Inductor
Internal Protections:
Undervoltage Lockout (UVLO)
Leading-Edge Blanking (LEB)
Cycle-by-cycle Overcurrent Protection (OCP)
Output Open/Short Protection (OVP/OSP)
Thermal Fold-back Protection (TFP)
Overtemperature Protection (OTP)
SO-7 Package

Application(s)

Retrofit LED Lamps
LED Tube
High Voltage DC-DC LED Driver
General Purpose Constant Current Source

Product Specifications

Product Parameters

Accuracy (%)	3
Dimming	N/A
Efficiency (%)	90
Frequency (kHz)	200
LED Current (mA)	350
Maximum DC VDD (V_DC)	15.5
Maximum Input AC Voltage (V_AC)	265
Minimum Input AC Voltage (V_AC)	85
SupplyCurrent (mA)	0.17
Temperature Range (°C)	-40 to 105

Technical Documents

Recommended Soldering Techniques

TN1.pdf

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-2567	2022-03-30	2022-09-30	Device End of Life (EOL)