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Diodes Incorporated AL1692S-13
- Part No.:
- AL1692S-13
- Manufacturer:
- Diodes Incorporated
- Category:
- LED Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AL1692S-13.pdf
- Description:
- IC LED DRIVER OFFL TRIAC 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:2,502
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Product details
Overview
AL1692S-13 from Diodes Incorporated is a triac-dimmable LED controller IC for buck-boost and flyback topologies, delivering ±3% current sense tolerance, 14.5V startup voltage, and NEMA SSL6-compliant dimming down to 1% with external MOSFET support up to 25W output power in mains-connected LED lamps.
For engineers reviewing the AL1692S-13 datasheet, AL1692S-13 pinout, AL1692S-13 application, or AL1692S-13 equivalent, this controller enables high-PF, BCM-mode operation across 120Vac/230Vac inputs while integrating thermal foldback, cycle-by-cycle OCP, and open/short LED protection - critical for reliable dimmable retrofit lamp design.
Technical Context
The AL1692S-13 operates in boundary conduction mode (BCM) using constant on-time control with adaptive tON_MAX limiting via external RT resistor to maintain stable LED current across wide dimmer conduction angles (0°–180°). Its source-driver architecture eliminates auxiliary winding requirements and reduces operating current to 210µA at 4kHz switching.
It implements closed-loop constant-current regulation via internal 0.4V reference and CS pin sensing, with integrated protections including UVLO (14.5V start / 8.5V hold), 1.6V CS clamp, 4.0V FB overvoltage threshold, and thermal foldback triggered at +145°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Topology Support | Buck-boost and flyback - enables single-winding inductor design for compact, cost-effective offline LED drivers |
| Startup Voltage | 14.5V - ensures reliable turn-on after AC rectification and VCC capacitor charging via startup resistors |
| Current Sense Tolerance | ±3% - guarantees tight LED current regulation across line/load/temperature for consistent luminous output |
| Dimming Compliance | NEMA SSL6 - delivers smooth, flicker-free dimming from 1% to 100% with leading/trailing-edge TRIAC dimmers |
| Thermal Foldback Trigger | +145°C typical - linearly reduces output current above threshold to prevent thermal runaway without shutdown |
| Protection Features | UVLO, LEB, cycle-by-cycle OCP, FB-based OVP/OSP, OTP latch-off - ensures robust fault handling in unattended lighting systems |
| Package | SO-8 - surface-mount package with 104°C/W θJA, optimized for thermal management in enclosed lamp housings |
Pinout & Package
AL1692S-13 is housed in an SO-8 package with exposed pad for enhanced thermal dissipation. Pin 7 is NC (not connected); all pins are electrically defined per Diodes DS39008 Rev. 3-2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VCC | Power supply input | Accepts 8.5–15.5V DC; powers internal circuitry and gate driver; clamped at 15.5V to prevent overvoltage damage |
| 2 RT | Timing resistor connection | Sets maximum on-time (tON_MAX) for dimming depth control; 0.5V reference enables precise external resistor selection |
| 3 COMP | Current loop compensation | Output of error amplifier; voltage range 0–4V determines tON duration and regulates LED current in closed loop |
| 4 GND | Signal and power ground | Reference node for all analog blocks; must be low-impedance return path to minimize noise coupling into CS/FB |
| 5 FB | LED string voltage feedback | Detects open-circuit condition at 4.0V threshold; triggers hiccup-mode OVP response to protect LEDs and driver |
| 6 CS | Primary-side current sensing | Monitors MOSFET current via R5; 1.6V clamp prevents false OCP triggering during leading-edge spikes |
| 7 NC | No connect | Unbonded pin; must remain floating - no PCB trace or component connection permitted |
| 8 SW | Low-side source driver output | Drives external N-channel MOSFET gate; designed for fast switching with low propagation delay in BCM operation |
Key Features
| Feature | Design Value |
|---|---|
| Single-winding inductor support | Eliminates auxiliary winding and associated components - reduces BOM count and layout area in compact lamp designs |
| Boundary conduction mode (BCM) | Enables natural zero-current switching, lowering EMI emissions and easing compliance with CISPR-15 Class B limits |
| Source-driver topology | Reduces quiescent current to 210µA at 4kHz - extends hold time during low-dimming-angle operation |
| Integrated thermal foldback | Self-adaptive current reduction above +145°C - maintains system operation without shutdown under sustained high ambient conditions |
| Triac dimmer compatibility | Supports both leading- and trailing-edge dimmers without external bleeder tuning - simplifies qualification across global markets |
Applications
| Dimmable A19 Retrofit Lamp | GU10 Dimmable Spotlight |
|---|---|
|
Use Scenario: 120Vac/230Vac LED replacement bulb with TRIAC wall dimmer in residential lighting. IC Role / Device Role / Timing Role: Primary-side controller regulating LED current in buck-boost topology; manages tON_MAX timing to track dimmer conduction angle. Use Value: Delivers 1%–100% smooth dimming per NEMA SSL6 while maintaining >0.9 PF and <20% THD across full input range. |
Use Scenario: Directional LED spotlight with enclosed heatsink and thermal constraints in retail display lighting. IC Role / Device Role / Timing Role: Constant-current controller with thermal foldback; adjusts output current linearly above +145°C junction temperature. Use Value: Prevents thermal shutdown during sustained high-ambient operation, extending lumen maintenance and lifetime in confined fixtures. |
| Dimmable PAR30 Floodlight | Outdoor Wall Pack Driver |
|
Use Scenario: Outdoor-rated floodlight with wide input voltage range (90–305Vac) and IP65 enclosure. IC Role / Device Role / Timing Role: Flyback-mode controller providing isolation and robust OVP/OSP protection against LED string failure. Use Value: Maintains safe operation during LED open/short faults and suppresses surge-induced latch-up via hiccup-mode recovery. |
Use Scenario: Commercial wall-mounted fixture operating continuously at elevated ambient temperatures (>60°C). IC Role / Device Role / Timing Role: High-efficiency BCM controller with 210µA operating current and low-temperature coefficient reference. Use Value: Ensures stable light output and extended service life by minimizing self-heating and enabling accurate current regulation at +105°C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dimmable LED controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AL1692-20CS7-13 | Integrates 600V/2A MOSFET in SO-7; eliminates external switch but reduces max output power to ~15W | Targeted at lower-power, space-constrained designs where board area is prioritized over flexibility | Select when BOM simplification and reduced layout complexity outweigh need for >15W output capability |
| AP3768MTR-G1 | Fixed-frequency CCM controller; lacks NEMA SSL6 dimming curve and thermal foldback; requires auxiliary winding | Suitable for non-dimmable or basic phase-cut applications where deep dimming and thermal resilience are not required | Choose only if legacy design reuse or cost sensitivity overrides need for certified dimming performance and adaptive thermal protection |
Compared with AL1692-20CS7-13, the AL1692S-13 offers higher power scalability (up to 25W) and SO-8 thermal performance; versus AP3768MTR-G1, it provides superior dimming fidelity, BCM efficiency, and integrated thermal management - making it optimal for premium retrofit and commercial dimmable LED drivers.
Availability
AL1692S-13 is available at Aetrix Electronics and suitable for dimmable LED retrofit lamps, commercial spotlights, outdoor floodlights, and wall pack drivers requiring stable component supply, long-lifecycle support, and regulatory-compliant dimming performance.
Supply support for AL1692S-13 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 semiconductor company specializing in discrete, analog, and mixed-signal solutions for power management, signal integrity, and lighting applications.
The AL1692 product line targets high-reliability, triac-dimmable LED drivers for residential and commercial retrofit lamps - engineered for seamless dimmer interoperability, high power factor, and thermal resilience in thermally constrained enclosures.
FAQ
What dimmer types does AL1692S-13 support?
The AL1692S-13 supports both leading-edge (TRIAC) and trailing-edge (electronic low-voltage) dimmers without external tuning. It achieves deep dimming down to 1% while maintaining stable current regulation and complying with NEMA SSL6 dimming curve requirements across 120Vac and 230Vac inputs.
How does thermal foldback operate in AL1692S-13?
At junction temperatures above +145°C (typical), AL1692S-13 linearly reduces its internal 0.4V current reference voltage, proportionally decreasing LED output current. This prevents thermal runaway while maintaining continuous operation - unlike OTP, which latches off at +160°C and requires power cycle recovery.
Can AL1692S-13 drive LEDs directly without an external MOSFET?
No. AL1692S-13 is a controller-only IC in SO-8 package and requires an external high-voltage N-channel MOSFET. The integrated-MOSFET variant is AL1692-20CS7-13 (SO-7), which embeds a 600V/2A device but caps output power at ~15W versus 25W achievable with discrete MOSFETs driven by AL1692S-13.
What protection features are built into AL1692S-13?
AL1692S-13 integrates undervoltage lockout (UVLO), leading-edge blanking (LEB), cycle-by-cycle overcurrent protection (OCP), FB-based overvoltage/short-circuit protection (OVP/OSP), thermal foldback (TFP), and overtemperature protection (OTP) with latch-off behavior. All functions operate autonomously without external components.
AL1692S-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- AC DC Offline Switcher
- Topology:
- Flyback, Step-Down (Buck), Step-Up (Boost)
- Internal Switch(s):
- No
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 8.5V
- Voltage - Supply (Max):
- 20V
- Voltage - Output:
- -
- Current - Output / Channel:
- -
- Frequency:
- 4kHz
- Dimming:
- Triac
- Applications:
- -
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
AL1692S-13 FAQ
1.How can I place an order for AL1692S-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AL1692S-13 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AL1692S-13 reliable?
The price and inventory of AL1692S-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AL1692S-13 is usually 5 days.
3.What payment methods are accepted for AL1692S-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AL1692S-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AL1692S-13?
AL1692S-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AL1692S-13 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AL1692S-13?
For technical support, including AL1692S-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AL1692S-13 requirements.
6.How does Aetrix verify that AL1692S-13 is sourced from the original manufacturer or authorized distributors?
All AL1692S-13 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AL1692S-13 meets industry standards.
7.What is the process for return or replacement of AL1692S-13?
All AL1692S-13 units undergo pre-shipment inspection (PSI). If there is an issue with AL1692S-13, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AL1692S-13 part is unused and in its original packaging.
Return procedure for AL1692S-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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