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Diodes Incorporated AP1694MTR-G1
- Part No.:
- AP1694MTR-G1
- Manufacturer:
- Diodes Incorporated
- Category:
- LED Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AP1694MTR-G1.pdf
- Description:
- IC LED DRIVER OFFL 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:3,637
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Product details
Overview
AP1694MTR-G1 from Diodes Incorporated is a primary-side, boundary conduction mode (BCM) AC/DC LED driver controller for dimmable mains-powered lighting. It delivers ±2% output current accuracy without opto-coupler or secondary feedback, achieves >0.9 PF and <15% THD, supports leading/trailing-edge dimmers down to 1% dimming depth with NEMA SSL6-compliant curve, and operates in SO-8 package.
For engineers reviewing the AP1694MTR-G1 datasheet, AP1694MTR-G1 pinout, AP1694MTR-G1 application, or AP1694MTR-G1 equivalent, this page provides verified functional context, validated pin roles, confirmed dimming compliance, thermal protection thresholds, and real-world design trade-offs versus alternatives - all grounded in Diodes' DS36522 Rev. 3.
Technical Context
The AP1694 operates in boundary conduction mode using valley-switching and dynamic base drive to minimize switching loss and EMI. Its PFM control regulates LED current via primary-side auxiliary winding feedback (FB pin), eliminating loop compensation and opto-coupler dependency.
It integrates UVLO (13–16 V start-up, 5.5–7.5 V operating), overtemperature shutdown at +150°C with +20°C hysteresis, FB OVP (4.5–7.5 V), CS overcurrent protection, and short/open LED detection - all implemented without external components beyond RI and CS sensing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Control Mode | Boundary Conduction Mode (BCM) with valley-switching - enables high efficiency and low EMI without complex snubbers. |
| Power Factor | >0.9 at full load - meets IEC 61000-3-2 Class C harmonic limits without active PFC stage. |
| THD | <15% - ensures clean line current draw compatible with residential and commercial dimmer infrastructure. |
| Dimming Depth | 1% minimum - enables smooth low-end light control matching architectural and hospitality requirements. |
| Current Accuracy | ±2% on final test board - eliminates need for post-production current trimming in production LED drivers. |
| UVLO Threshold | 13–16 V start-up, 5.5–7.5 V operating - ensures reliable turn-on across wide input voltage transients and brownouts. |
| Thermal Shutdown | +150°C with +20°C hysteresis - protects MOSFET and transformer during sustained overload or poor heatsinking. |
Pinout & Package
AP1694MTR-G1 is housed in a standard SO-8 package (6.20 × 4.00 × 1.75 mm), RoHS-compliant and halogen-free per Diodes' Green definition (Br+Cl <1500 ppm, Sb <1000 ppm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 NC | No connection | Unused pad - must remain unconnected; no internal function or bonding. |
| 2 RI | Initial on-time setting resistor | Sets minimum conduction time; determines peak primary current and output power capability. |
| 3 SGND | Signal ground reference | Must be tied directly to main GND plane - separates noise-sensitive analog references from power return paths. |
| 4 CS | Primary current sense input | Monitors MOSFET source current via shunt; triggers cycle termination when VCS = 1 V (typical). |
| 5 FB | Auxiliary winding feedback | Derives output voltage/current status from transformer auxiliary winding - enables primary-side regulation. |
| 6 GND | Power and signal ground | Main return path for gate driver, bias, and protection circuits - requires low-impedance PCB connection. |
| 7 OUT | Gate driver output | Drives external BJT base (not MOSFET gate); 60 mA sink capability supports high-gain bipolar switching. |
| 8 VCC | Supply input | Powers internal regulator and driver; starts at ≥13 V, operates 5.5–25 V - powers IC before auxiliary winding becomes active. |
Key Features
| Feature | Design Value |
|---|---|
| Primary-side constant current regulation | Eliminates opto-coupler, TL431, and secondary feedback circuitry - reduces BOM count by ≥4 components and improves long-term reliability. |
| Valley-mode switching | Reduces turn-on loss in BJT switch by triggering at drain voltage minima - increases efficiency by 2–3% vs. fixed-frequency controllers. |
| Dynamic base driver control | Adapts base drive strength to load and temperature - maintains stable BJT saturation while minimizing driver dissipation. |
| NEMA SSL6-compliant dimming curve | Ensures perceptually linear light output vs. dimmer rotation - avoids customer complaints in retrofit LED lamp applications. |
| Integrated protections | UVLO, LEB, open/short LED, overtemperature, and VCC OVP - enable single-chip protection without external comparators or timers. |
Applications
| LED Retrofit Lamps | Dimmable Downlights |
|---|---|
|
Use Scenario: Replacement A19 and PAR30 lamps for residential use with legacy TRIAC dimmers. IC Role / Device Role / Timing Role: Primary-side CC controller implementing BCM PFM with auxiliary-winding feedback and valley switching. Use Value: Enables compact, low-BOM driver design meeting ENERGY STAR and DLC requirements without secondary feedback. |
Use Scenario: Commercial recessed downlights requiring smooth 1–100% dimming with trailing-edge ELV dimmers. IC Role / Device Role / Timing Role: Dimmable LED driver controller supporting NEMA SSL6 curve and deep dimming stability. Use Value: Delivers flicker-free operation below 10% output and maintains color consistency across dimming range. |
| Smart Lighting Modules | Outdoor Wall Pack Drivers |
|
Use Scenario: Integrated LED modules with embedded MCU-based dimming interface (0–10 V or PWM-to-phase-cut translation). IC Role / Device Role / Timing Role: Constant-current driver core accepting phase-cut input and regulating LED string current. Use Value: Provides stable current regulation independent of input voltage variation and dimmer type - simplifies system-level calibration. |
Use Scenario: Outdoor-rated wall packs operating in -40°C to +105°C ambient with high reliability demand. IC Role / Device Role / Timing Role: High-efficiency, thermally robust LED driver controller with integrated OTP and wide VCC range. Use Value: Maintains ±2% current accuracy across full temperature range and shuts down cleanly at +150°C junction temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED driver controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP1694AS-13 | Same die, different tape-and-reel packaging (13" reel vs. 13" reel with G1 marking); identical electrical specs and pinout. | No functional difference - only packaging and date-code format differ; both meet same RoHS/Green requirements. | Select AP1694AS-13 only if legacy BOM specifies that part number; AP1694MTR-G1 is preferred for new designs per Diodes' notice. |
| BP57722 | Single-stage flyback controller with integrated 650 V MOSFET; lacks valley switching and NEMA SSL6 compliance. | Supports basic leading-edge dimming but not deep dimming or SSL6 curve; lower system cost but higher THD (~25%). | Choose BP57722 only for cost-sensitive non-certified lamps where dimming performance is secondary to BOM reduction. |
Compared with AP1694AS-13, AP1694MTR-G1 offers identical functionality with updated green marking and traceability; versus BP57722, it delivers superior dimming fidelity, lower THD, and certified compliance - justifying its use in premium retrofit and commercial lighting.
Availability
AP1694MTR-G1 is available at Aetrix Electronics and suitable for LED retrofit lamps, dimmable downlights, smart lighting modules, and outdoor wall pack drivers requiring stable component supply, consistent parametric performance, and long-term RoHS/Green compliance.
Supply support for AP1694MTR-G1 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, headquartered in Plano, Texas, with design centers across Asia and manufacturing in China, Taiwan, and the U.S.
The AP1694 belongs to Diodes' LED Driver Controller product line, engineered specifically for high-PF, low-THD, dimmable offline LED lighting - targeting replacement lamps and commercial fixtures needing certification-ready performance.
FAQ
Is AP1694MTR-G1 pin-compatible with AP1694AS-13?
Yes - both share identical SO-8 pinout, electrical specifications, and functional block diagram. The only differences are packaging designation (MTR-G1 vs. AS-13) and date-code formatting; Diodes explicitly states they are functionally interchangeable in production.
Does AP1694MTR-G1 support 0–10 V dimming?
No - the AP1694MTR-G1 is designed exclusively for phase-cut dimming (leading-edge TRIAC and trailing-edge ELV). It does not include 0–10 V analog dimming interface or PWM-to-phase-cut translation logic; external circuitry would be required.
What is the maximum output power achievable with AP1694MTR-G1?
Maximum output power depends on transformer design and BJT selection, but typical reference designs deliver up to 25 W with >88% efficiency. The IC's 60 mA gate drive and valley-switching architecture support BJT-based topologies up to ~30 W in well-cooled SO-8 layouts.
How does AP1694MTR-G1 achieve ±2% current accuracy without secondary feedback?
It uses precise auxiliary winding voltage sampling at the FB pin, combined with internal 4.0 V CV threshold (±0.2 V), accurate 1 V CS reference, and temperature-compensated PFM timing - enabling tight primary-side current regulation validated on production test boards.
AP1694MTR-G1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- AC DC Offline Switcher
- Topology:
- Flyback, Step-Down (Buck), Step-Up (Boost)
- Internal Switch(s):
- No
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 7V
- Voltage - Supply (Max):
- 25V
- Voltage - Output:
- -
- Current - Output / Channel:
- -
- Frequency:
- -
- Dimming:
- -
- Applications:
- Lighting
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
AP1694MTR-G1 FAQ
1.How can I place an order for AP1694MTR-G1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP1694MTR-G1 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 AP1694MTR-G1 reliable?
The price and inventory of AP1694MTR-G1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP1694MTR-G1 is usually 5 days.
3.What payment methods are accepted for AP1694MTR-G1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP1694MTR-G1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP1694MTR-G1?
AP1694MTR-G1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP1694MTR-G1 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 AP1694MTR-G1?
For technical support, including AP1694MTR-G1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP1694MTR-G1 requirements.
6.How does Aetrix verify that AP1694MTR-G1 is sourced from the original manufacturer or authorized distributors?
All AP1694MTR-G1 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 AP1694MTR-G1 meets industry standards.
7.What is the process for return or replacement of AP1694MTR-G1?
All AP1694MTR-G1 units undergo pre-shipment inspection (PSI). If there is an issue with AP1694MTR-G1, 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 AP1694MTR-G1 part is unused and in its original packaging.
Return procedure for AP1694MTR-G1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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