Diodes Incorporated AL1692-30BS7-13-01

Overview

AL1692-30BS7-13-01 from Diodes Incorporated is a triac-dimmable, high-power-factor buck-boost/flyback LED driver IC with integrated 500V/3A MOSFET, ±3% current sense tolerance, boundary conduction mode (BCM) operation, and NEMA SSL6-compliant dimming down to 1%. It targets 120Vac mains-connected LED lamps requiring single-winding inductor design and BOM cost reduction.

For engineers reviewing the AL1692-30BS7-13-01 datasheet, AL1692-30BS7-13-01 pinout, AL1692-30BS7-13-01 application, or AL1692-30BS7-13-01 equivalent, key selection considerations include thermal foldback trigger at +145°C, VCC clamp at 15.5V, tON_MAX programmability via RT pin, and compatibility with leading/trailing-edge dimmers without auxiliary winding.

Technical Context

The AL1692-30BS7-13-01 implements constant-on-time (COT) control for high power factor (>0.9) and operates exclusively in boundary conduction mode (BCM) to minimize EMI and maximize efficiency across line and load variations. Its source-driver architecture reduces operating current to 210µA at 4kHz switching frequency.

It integrates cycle-by-cycle overcurrent protection triggered at 1.6V CS clamp voltage, thermal foldback starting at +145°C junction temperature, and latched overtemperature shutdown at +160°C. The FB pin enables output open-circuit protection with 3.95V typical threshold and 4µA leakage current.

Key Specifications

Pinout & Package

AL1692-30BS7-13-01 is housed in a thermally enhanced SO-7 package (6.9mm × 3.9mm × 1.75mm), featuring exposed drain pad for improved heat dissipation and RoHS-compliant lead-free construction.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dimmable LED driver applications.

Compared with AL1698K, AL1692-30BS7-13-01 offers proven dimmer compatibility but higher operating current and narrower thermal margin; versus BP5609D, it delivers superior integration and thermal safety at the cost of higher unit price and fixed topology.

Availability

AL1692-30BS7-13-01 is available at Aetrix Electronics and suitable for residential LED bulbs, commercial downlights, industrial track lighting, and smart home LED drivers requiring stable component supply and long-term obsolescence planning.

Supply support for AL1692-30BS7-13-01 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in power management, signal integrity, and lighting solutions for industrial, consumer, and automotive markets.

The AL1692 product line delivers highly integrated, dimmable LED drivers targeting cost-sensitive, thermally constrained AC-input LED lighting applications with emphasis on TRIAC compatibility and system-level reliability.

FAQ

What is the recommended minimum t_{ON_MIN} for stable operation?

The AL1692-30BS7-13-01 specifies a minimum t_ON of 550ns to ensure reliable MOSFET turn-on and avoid premature current-sense blanking errors. This value is guaranteed across -40°C to +105°C ambient and ensures proper LEB timing alignment with peak current detection.

Can AL1692-30BS7-13-01 operate from 230Vac input?

No - the AL1692-30BS7-13-01 is rated for 500V drain voltage and optimized for 120Vac triac-dimming applications. Its internal MOSFET and protection thresholds are not validated for 230Vac operation; use AL1692-30B variants qualified for higher line voltages or alternative controllers like AL1698K with extended ratings.

How does the thermal foldback function interact with overtemperature protection?

Thermal foldback activates at +145°C junction temperature to linearly reduce output current and stabilize power dissipation. If temperature continues rising to +160°C, latched overtemperature protection triggers, halting switching until AC power is cycled. Foldback prevents reaching OTP under sustained overload, extending safe operating time.

Is the SO-7 package thermally adequate for 30W LED loads?

Yes - with proper PCB copper area (≥1"×1" 2oz FR-4), the SO-7 package achieves θ_JA = 123°C/W, allowing ~0.8W dissipation at +50°C ambient. For 30W LED loads, total system losses must remain ≤0.8W; this requires high-efficiency magnetics, low-R_DS(on) layout, and forced airflow or heatsinking for sustained full-load operation.