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Diodes Incorporated AL5892SP-13
- Part No.:
- AL5892SP-13
- Manufacturer:
- Diodes Incorporated
- Category:
- LED Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
AL5892SP-13.pdf
- Description:
- IC LED DRVR LIN TRIAC 75MA 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,298
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Product details
Overview
AL5892SP-13 from Diodes Incorporated is an offline TRIAC-dimmable linear LED driver IC with integrated 350V main MOSFET and 500V bleeder MOSFET, ±3% current sense tolerance, 75mA programmable output current, and NEMA SSL7-compliant dimming curve - designed for retrofit LED lamps operating directly from 120VAC mains.
For engineers reviewing the AL5892SP-13 datasheet, AL5892SP-13 pinout, AL5892SP-13 application, or AL5892SP-13 equivalent, key selection criteria include dimmer compatibility (leading/trailing edge), thermal foldback behavior at +150°C, bleeder control logic via DIMD/BLD pins, and SO-8EP package thermal resistance (θJC = 35.2°C/W).
Technical Context
The AL5892SP-13 implements a linear constant-current architecture that eliminates EMI filter components by avoiding high-frequency switching. Its bus voltage sensing (VBUS) and dimmer detection (DIMD) circuitry derive phase-angle information from rectified AC input to generate a DC-level conduction angle signal.
Internal protection includes LED open/short detection via CS pulse-width analysis, thermal foldback triggered at +150°C (reducing LED current >50%), and overtemperature shutdown at +165°C. The COMP pin provides loop compensation for current regulation stability across temperature and line variations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | Programmable up to 75mA - sets maximum RMS LED string current via external CS resistor; enables single high-voltage LED chain drive. |
| Current Sense Tolerance | ±3% - ensures tight LED brightness consistency across production units without calibration. |
| Efficiency | Up to 85% - achieved via internal efficiency compensation; reduces thermal load in enclosed lamp housings. |
| Power Factor | >0.7 - meets basic energy efficiency requirements for residential LED retrofit applications. |
| Dimming Compliance | NEMA SSL7 - delivers smooth, flicker-free dimming response matching incandescent behavior across 0–100% range. |
| Thermal Protection | Foldback at +150°C, shutdown at +165°C - prevents permanent damage during sustained overtemperature conditions. |
| Operating Input | 108–132VAC RMS - optimized for North American 120V mains; not rated for 230V operation. |
Pinout & Package
AL5892SP-13 is housed in an SO-8EP (Type TH) thermally enhanced package with exposed pad (EP) connected to GND for improved heat dissipation. Package dimensions: 4.90 × 6.00 × 1.40 mm (L × W × H), θJC = 35.2°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VBUS | Rectified mains voltage sensing input | Monitors AC line waveform to detect TRIAC conduction angle; threshold-based comparator drives dimmer detection logic. |
| 2 GND | IC ground reference | Common return for internal circuitry, CS resistor, and EP connection; must be low-impedance path to minimize noise coupling. |
| 3 BLD | Bleeder MOSFET drain | Connects to AC line via external resistor; activated during dimmer hold period to emulate incandescent bulb loading. |
| 4 PLED | LED string negative terminal interface | Drives high-side current through LED chain; withstands up to 350V transient voltage during open-circuit fault. |
| 5 VCC | IC power supply input | Powered via R-C network from VLED+; UVLO thresholds (7V fall / 11.6V rise) prevent erratic startup under brownout. |
| 6 CS | Current sense input | Measures voltage drop across external sense resistor; internal 0.3V reference sets ILED = 0.3V / RCS. |
| 7 COMP | Error amplifier compensation node | Accepts external capacitor for loop stability; sinks/source up to 28µA to adjust MOSFET gate drive based on CS feedback. |
| 8 DIMD | Dimmer detection output | RC-filtered PWM signal representing conduction angle; <2.4V indicates active dimmer, enabling bleeder control. |
| 9 EP | Exposed thermal pad | Must be soldered to PCB copper pour for thermal reliability; reduces junction-to-case resistance by ~40% vs standard SO-8. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 350V main + 500V bleeder MOSFETs | Eliminates need for external high-voltage transistors; reduces BOM count by ≥4 components in typical retrofit design. |
| 300µA operating current | Minimizes standby power loss; enables compliance with Energy Star and California Title 24 low-no-load requirements. |
| Smart bleeder activation logic | Turns bleeder ON only when dimmer edge detected or line voltage <40V; improves system efficiency by 8–12% vs fixed-bleed designs. |
| LED open/short protection (OSP) | Detects fault within one AC half-cycle; forces auto-recovery after short removal without manual reset or power cycle. |
| Thermal foldback + shutdown | Gradual current reduction above +150°C preserves light output while preventing thermal runaway; hard shutdown at +165°C ensures safety. |
Applications
| Residential LED Lamps | Retrofit A19 Bulbs |
|---|---|
|
Use Scenario: Direct replacement of 60W incandescent bulbs in E26 sockets with TRIAC-dimmable LED modules. IC Role / Device Role / Timing Role: Linear constant-current driver providing dimmable 75mA output to single high-Vf LED string (e.g., 36V @ 75mA). Use Value: Eliminates EMI filters and magnetics; achieves <10mm board height in compact bulb form factor. |
Use Scenario: Retrofit into existing ceiling fixtures using legacy wall-mounted leading-edge TRIAC dimmers. IC Role / Device Role / Timing Role: Dimmer detection and smart bleeder controller ensuring stable turn-on across 10–100% dimming range. Use Value: Complies with NEMA SSL7 dimming curve; avoids pop-on/pop-off and audible buzzing common in low-cost drivers. |
| Commercial LED Tubes | Industrial Panel Indicators |
|
Use Scenario: T8 LED tube replacement for fluorescent fixtures with existing TRIAC dimming infrastructure. IC Role / Device Role / Timing Role: High-voltage linear driver supporting 100–120V LED string configurations at 75mA RMS. Use Value: Withstands 350V PLED transients during open-circuit faults; maintains operation during brief line surges. |
Use Scenario: Status lighting in industrial HMIs where EMI-sensitive analog sensors operate nearby. IC Role / Device Role / Timing Role: EMI-free linear current source eliminating switching noise that interferes with precision ADC measurements. Use Value: No EMI filtering required - reduces layout complexity and avoids conducted emissions test failures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TRIAC-dimmable linear LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AL5890SP-13 | Lacks integrated bleeder MOSFET; requires external 500V transistor and gate driver; 60mA max output. | Suitable only when board space allows external bleeder circuit; lower integration increases BOM cost and layout risk. | Select if thermal constraints permit discrete bleeder placement and lower current (≤60mA) suffices. |
| AP3767MTR-G1 | Switching flyback controller (not linear); requires transformer, optocoupler, and EMI filter; 100mA output. | Supports universal input (90–264VAC); higher efficiency at partial load but introduces EMI and audible noise. | Select for 230VAC systems or where >85% efficiency across full dimming range is mandatory. |
Compared with AL5890SP-13, AL5892SP-13 reduces component count and improves dimmer compatibility via integrated bleeder control; versus AP3767MTR-G1, it trades universal input support for zero-EMI operation and simpler layout in 120VAC-only applications.
Availability
AL5892SP-13 is available at Aetrix Electronics and suitable for residential LED lamps, retrofit A19 bulbs, commercial LED tubes, and industrial panel indicators requiring stable component supply and long-term lifecycle continuity.
Supply support for AL5892SP-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 manufacturer of discrete semiconductors and ICs, specializing in power management, signal integrity, and lighting solutions with ISO/TS 16949-certified manufacturing.
The AL5892 belongs to Diodes' linear LED driver product line, engineered specifically for cost-sensitive, EMI-constrained TRIAC-dimmable retrofit lighting applications operating from 120VAC mains.
FAQ
What is the maximum LED string voltage supported by AL5892SP-13?
The AL5892SP-13 supports LED strings with forward voltage up to 350V, as confirmed by its PLED pin breakdown rating (VBD_PLED_OFF = 350V). This enables driving longer series-connected high-Vf LEDs (e.g., 100× 3.5V LEDs) without external voltage clamping, provided thermal limits are observed at full load.
How does AL5892SP-13 achieve EMI compliance without external filters?
AL5892SP-13 operates in linear mode-no high-frequency switching occurs-so it generates negligible broadband EMI. Its constant-current regulation avoids the dV/dt and di/dt noise inherent in switch-mode drivers, eliminating the need for Y-capacitors, common-mode chokes, or shielding in Class B residential applications.
Can AL5892SP-13 be used with 230VAC input?
No-AL5892SP-13 is explicitly optimized for 108–132VAC input per its Recommended Operating Conditions. Its internal 350V main MOSFET and 500V bleeder MOSFET are insufficient for reliable 230VAC operation, and thermal performance degrades significantly above 132VAC due to increased linear dissipation.
What happens during LED short-circuit fault?
During LED short, the AL5892SP-13 detects extended CS pulse width and pulls COMP low to minimize power. It then cycles the main MOSFET ON once every five AC half-cycles to limit average power dissipation and prevent overheating, enabling automatic recovery when the short is removed.
AL5892SP-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Linear
- Topology:
- Constant Current
- Internal Switch(s):
- No
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 7.5V
- Voltage - Supply (Max):
- 11V
- Voltage - Output:
- -
- Current - Output / Channel:
- 75mA
- Frequency:
- -
- Dimming:
- Triac
- Applications:
- Lighting
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO-EP
AL5892SP-13 FAQ
1.How can I place an order for AL5892SP-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AL5892SP-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 AL5892SP-13 reliable?
The price and inventory of AL5892SP-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AL5892SP-13 is usually 5 days.
3.What payment methods are accepted for AL5892SP-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AL5892SP-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AL5892SP-13?
AL5892SP-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AL5892SP-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 AL5892SP-13?
For technical support, including AL5892SP-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AL5892SP-13 requirements.
6.How does Aetrix verify that AL5892SP-13 is sourced from the original manufacturer or authorized distributors?
All AL5892SP-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 AL5892SP-13 meets industry standards.
7.What is the process for return or replacement of AL5892SP-13?
All AL5892SP-13 units undergo pre-shipment inspection (PSI). If there is an issue with AL5892SP-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 AL5892SP-13 part is unused and in its original packaging.
Return procedure for AL5892SP-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AL5892SP-13 Tags
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CL2N8-G
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