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Diodes Incorporated AL1692K-20CS7-13
- Part No.:
- AL1692K-20CS7-13
- Manufacturer:
- Diodes Incorporated
- Category:
- LED Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width), 7 Leads
- Datasheet:
-
AL1692K-20CS7-13.pdf
- Description:
- LED OFFLINE DRIVER SO-7 T&R 4K
- Quantity:
- Payment:
- Shipping:
Inventory:3,998
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Product details
Overview
AL1692K from Diodes Incorporated is a TRIAC-dimmable LED driver IC integrating a 600V/2A high-voltage MOSFET, supporting Boost, Buck-Boost, and Flyback topologies with >90% efficiency, ±3% current sense tolerance, and NEMA SSL6-compliant dimming down to 1%. It targets mains-powered LED lamps requiring single-winding inductor design and universal 120/230Vac compatibility.
For engineers reviewing the AL1692K datasheet, AL1692K pinout, AL1692K application, or AL1692K equivalent, key selection considerations include its boundary conduction mode (BCM) operation, thermal foldback at +145°C, internal UVLO (14.5V startup), 7-pin SO-7 package, and absence of auxiliary winding requirement for tOFF detection.
Technical Context
The AL1692K operates in boundary conduction mode (BCM) using constant on-time control to achieve high power factor and simplify EMI filtering. Its source-driver architecture reduces operating current to 210µA at 4kHz switching frequency, while integrated leading-edge blanking (LEB) and cycle-by-cycle OCP ensure robust current sensing under transient conditions.
Dimming is implemented via tON_MAX limiting controlled by an external RT resistor (R6), enabling deep dimming (1%) across leading/trailing-edge TRIAC dimmers. Feedback-based OVP/OSP and thermal foldback (linear current reduction above +145°C) provide system-level safety without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Topology Support | Boost, Buck-Boost, and Flyback - enables single-stage, single-winding designs for cost-sensitive LED lamp applications. |
| Integrated MOSFET | 600V/2A HV MOSFET - eliminates need for external HV switch, reducing BOM count and PCB footprint in 120/230Vac systems. |
| Current Regulation | ±3% current sense tolerance - ensures tight LED output current accuracy over line/load/temperature variations. |
| Dimming Compliance | NEMA SSL6-compliant curve - guarantees interoperability with commercial-grade leading/trailing-edge TRIAC dimmers. |
| Thermal Protection | Thermal foldback at +145°C (typical) - linearly reduces output current to prevent thermal runaway without shutdown. |
| Startup Current | 100µA typical - minimizes power loss during initial VCC charging from high-voltage mains via startup resistors. |
| Operating Current | 210µA at 4kHz - enables low-power operation critical for maintaining regulation at low dimming angles. |
| Protection Features | UVLO, LEB, cycle-by-cycle OCP, OVP/OSP, TFP, OTP - comprehensive fault coverage without external supervision circuitry. |
Pinout & Package
AL1692K is housed in a 7-pin SO-7 surface-mount package with exposed pad for thermal enhancement. Pin numbering follows standard top-view layout with GND (Pin 4) centrally located for noise immunity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VCC | Power supply input | Internal clamp at 15.5V; powers IC after startup; sourced from rectified output or startup resistors. |
| 2 RT | Timing resistor connection | Sets maximum on-time (tON_MAX) to control dimming depth; reference voltage 0.5V, internal 1.5pF capacitor. |
| 3 COMP | Error amplifier output | Drives internal gate driver; voltage range up to 4V determines tON duration in closed-loop current regulation. |
| 4 GND | Analog/digital ground reference | Common return for CS, FB, RT, and internal circuits; requires low-impedance PCB connection. |
| 5 FB | Output voltage feedback | Detects open-circuit (OVP) or short-circuit (OSP) conditions; threshold 3.95V (typical). |
| 6 CS | Current sense input | Monitors peak inductor current via R5; clamped at 1.2V (typical); triggers OCP when exceeded. |
| 7 D | Drain of internal HV MOSFET | Connects directly to boost inductor/flyback primary; rated 600V breakdown, 2A continuous drain current. |
Key Features
| Feature | Design Value |
|---|---|
| Single-winding inductor support | Eliminates auxiliary winding requirement for tOFF detection, reducing component count and transformer complexity. |
| Boundary conduction mode (BCM) | Enables high efficiency (>90%) and inherent power factor correction without active PFC stage. |
| NEMA SSL6 dimming compliance | Validated deep dimming to 1% with minimal flicker across diverse commercial TRIAC dimmers. |
| Integrated 600V/2A MOSFET | Supports universal input (120/230Vac) without external HV switch, lowering system BOM and layout risk. |
| Thermal foldback protection | Linear current reduction starting at +145°C junction temperature, preserving LED life and avoiding thermal shutdown. |
| No external high-voltage components | Removes need for HV startup network or snubbers in basic implementations, simplifying safety certification. |
Applications
| LED Retrofit Lamps | TRIAC-Dimmable Downlights |
|---|---|
|
Use Scenario: Replacement A19 and PAR30 bulbs for residential lighting with legacy wall dimmers. IC Role / Device Role / Timing Role: Primary LED current controller implementing TRIAC phase-cut dimming in single-stage Boost topology. Use Value: Enables >90% efficiency and ±3% current regulation while meeting NEMA SSL6 dimming curve requirements without auxiliary winding. |
Use Scenario: Integrated ceiling-mounted downlights requiring smooth dimming from 100% to 1% light output. IC Role / Device Role / Timing Role: Constant-current driver with thermal foldback managing LED thermal derating in enclosed fixtures. Use Value: Maintains stable current regulation across 120/230Vac inputs and prevents thermal runaway via linear foldback at +145°C. |
| Commercial Track Lighting | Dimmable LED Tubes |
|
Use Scenario: Modular track lighting systems with multiple heads controlled by a single TRIAC dimmer. IC Role / Device Role / Timing Role: High-PF, BCM-operating driver supporting Buck-Boost topology for wide output voltage range. Use Value: Delivers consistent lumen output across varying load configurations without external PFC or current-sense amplifiers. |
Use Scenario: Direct-wire LED tubes replacing fluorescent fixtures in offices and retail spaces. IC Role / Device Role / Timing Role: Flyback-based offline driver with integrated 600V MOSFET eliminating external HV switch and snubber. Use Value: Reduces BOM count by 3–4 components versus discrete HV MOSFET solutions while maintaining 1% dimming capability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TRIAC-dimmable LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AL1698K | Successor device with improved thermal foldback slope, lower standby current (80µA), and enhanced dimmer compatibility margin. | Same SO-7 package and pinout; supports identical topologies but optimized for newer energy standards (e.g., DOE 6, ERP Tier 2). | Select AL1698K for new designs requiring extended lifecycle support and tighter dimming consistency at ultra-low conduction angles. |
| BP5758D | Non-integrated HV MOSFET; requires external 600V switch; higher system BOM but offers greater flexibility in MOSFET selection. | Targeted at higher-power (>25W) applications where thermal management favors discrete HV FETs and custom gate drive. | Choose BP5758D when designing for >20W output or when needing independent optimization of HV switch RDS(ON) and SOA. |
Compared with AL1692K, AL1698K provides lower startup current and refined thermal foldback behavior for longer LED lifetime, while BP5758D trades integration for design flexibility in high-power or thermally constrained layouts.
Availability
AL1692K is available at Aetrix Electronics and suitable for LED retrofit lamps, TRIAC-dimmable downlights, and commercial track lighting requiring stable component supply and long-term production continuity.
Supply support for AL1692K 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 AL1692K belongs to Diodes' LED driver product line, engineered specifically for cost-sensitive, TRIAC-dimmable AC/DC LED lighting applications requiring high efficiency, universal input, and regulatory compliance.
FAQ
What is the maximum ambient temperature for continuous operation of the AL1692K?
The AL1692K operates continuously at ambient temperatures up to +105°C per recommended conditions. At +125°C ambient, it remains functional only if thermal foldback prevents junction temperature from exceeding +145°C. The absolute maximum junction temperature is +150°C, with thermal shutdown latching at +160°C.
Does the AL1692K require an auxiliary winding for tOFF detection?
No. The AL1692K uses a novel source-driver technique and internal zero-current detection (ZCD) to determine tOFF without an auxiliary winding. This simplifies transformer design, reduces component count, and improves reliability in compact LED lamp form factors.
How is dimming depth adjusted in the AL1692K?
Dimming depth is set by the external RT resistor (R6) connected to Pin 2, which controls tON_MAX. A larger RT value increases tON_MAX, allowing deeper dimming (down to 1%). The relationship follows tON_MAX = (0.33 × 10⁻⁶ × VRT_REF)/R6 + 3.3µs, with VRT_REF = 0.5V.
What protection features are integrated into the AL1692K?
The AL1692K integrates undervoltage lockout (UVLO), leading-edge blanking (LEB), cycle-by-cycle overcurrent protection (OCP), output open/short protection (OVP/OSP), thermal foldback (TFP), and overtemperature protection (OTP). All functions operate autonomously without external components or configuration.
AL1692K-20CS7-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width), 7 Leads
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- AC DC Offline Switcher
- Topology:
- Flyback, Step-Down (Buck), Step-Up (Boost)
- Internal Switch(s):
- Yes
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 8.5V
- Voltage - Supply (Max):
- 18V
- Voltage - Output:
- -
- Current - Output / Channel:
- 2A
- Frequency:
- -
- Dimming:
- Triac
- Applications:
- General Purpose
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 7-SO
AL1692K-20CS7-13 FAQ
1.How can I place an order for AL1692K-20CS7-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AL1692K-20CS7-13 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 AL1692K-20CS7-13 reliable?
The price and inventory of AL1692K-20CS7-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AL1692K-20CS7-13 is usually 5 days.
3.What payment methods are accepted for AL1692K-20CS7-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AL1692K-20CS7-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AL1692K-20CS7-13?
AL1692K-20CS7-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AL1692K-20CS7-13 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 AL1692K-20CS7-13?
For technical support, including AL1692K-20CS7-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AL1692K-20CS7-13 requirements.
6.How does Aetrix verify that AL1692K-20CS7-13 is sourced from the original manufacturer or authorized distributors?
All AL1692K-20CS7-13 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 AL1692K-20CS7-13 meets industry standards.
7.What is the process for return or replacement of AL1692K-20CS7-13?
All AL1692K-20CS7-13 units undergo pre-shipment inspection (PSI). If there is an issue with AL1692K-20CS7-13, 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 AL1692K-20CS7-13 part is unused and in its original packaging.
Return procedure for AL1692K-20CS7-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AL1692K-20CS7-13 Tags
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