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Diodes Incorporated AP1682MTR-OG1
- Part No.:
- AP1682MTR-OG1
- Manufacturer:
- Diodes Incorporated
- Category:
- LED Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AP1682MTR-OG1.pdf
- Description:
- IC LED DRIVER OFFL 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,382
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Product details
Overview
AP1682MTR-OG1 from Diodes Incorporated is a single-stage primary-side regulation (PSR) PFC controller IC for universal-input AC/DC LED drivers. It delivers accurate constant-current (CC) regulation without opto-coupler or secondary feedback, achieves >0.9 power factor and <15% THD across 90–265 VAC, and operates with 7–21 VCC supply voltage. Used in offline LED lighting systems requiring IEC61000-3-2 compliance.
For engineers reviewing the AP1682MTR-OG1 datasheet, AP1682MTR-OG1 pinout, AP1682MTR-OG1 application, or AP1682MTR-OG1 equivalent, this page provides verified technical context, SOIC-8 pin mapping, real-world LED driver use cases, and validated alternative controllers with documented functional differences.
Technical Context
The AP1682 implements Pulse Frequency Modulation (PFM) to regulate output current directly from primary-side sensing-using VS for instantaneous rectified input voltage, VPK for peak detection, and CS for primary current sampling. Its internal acceleration start control and open/reload detection enable robust cold-start behavior in LED drivers.
It integrates a high-voltage gate driver (OUT), precision CV/CC thresholds (VFB(CV) = 4.2 V typ, VFB(OVP) = 6 V typ), and comprehensive protection: overvoltage (OVP), short-circuit, overcurrent (VSOCP = 4 V), and thermal shutdown at +140 °C with +20 °C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Topology | Single-stage PSR PFC with integrated gate driver for flyback/QR operation |
| Input Range | Universal AC: 90–265 VAC; enables global LED driver deployment without hardware change |
| Power Factor | >0.9 at full load; meets IEC61000-3-2 Class C requirements for lighting equipment |
| CC Regulation Accuracy | ±3% typical over line/voltage/temperature; eliminates secondary feedback loop complexity |
| VCC Operating Range | 7–21 V; supports wide auxiliary winding design margin and brown-out resilience |
| Start-up Current | 20 µA max; reduces startup energy loss and enables smaller VCC capacitor |
| Thermal Shutdown | +140 °C with +20 °C hysteresis; prevents latch-up during sustained overload or poor heatsinking |
Pinout & Package
AP1682MTR-OG1 is housed in an industry-standard SOIC-8 package (4.90 × 3.90 × 1.75 mm), RoHS-compliant and halogen-free, optimized for automated assembly and thermal dissipation in compact LED driver PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 NC | No connection | Unused pad; must remain unconnected to avoid noise coupling or latch-up risk |
| 2 VS | Rectified input voltage sensing | Directly monitors instantaneous AC line waveform for real-time PFC shaping and zero-crossing detection |
| 3 VPK | Peak input voltage sensing | Tracks rectified sine peak to scale reference for adaptive current limit and soft-start timing |
| 4 CS | Primary current sense input | Accepts shunt-resistor voltage for cycle-by-cycle peak current limiting and OCP triggering at 4 V |
| 5 FB | Auxiliary winding feedback | Samples reflected output voltage to regulate no-load CV, set acceleration stop point, and trigger OVP at 6 V |
| 6 GND | Signal and power ground | Common return for gate driver, bias, and control circuits; requires low-impedance PCB pour |
| 7 OUT | High-current gate driver output | Drives external MOSFET with 300 mA sink/source capability and 140 ns rise time (CL = 1 nF) |
| 8 VCC | IC supply input | Accepts 7–21 V DC from auxiliary winding; includes UVLO (19 V turn-on, 8 V turn-off) and OVP (32 V) |
Key Features
| Feature | Design Value |
|---|---|
| Primary-side CC regulation | Eliminates opto-coupler, TL431, and secondary feedback components-reducing BOM cost and board space by ≥30% |
| Integrated acceleration start | Reduces startup time to <500 ms under full load while preventing transformer saturation during cold start |
| Open- and reload detection | Automatically disables output during open-circuit condition and resumes regulation within 100 ms after load reconnection |
| Built-in protection suite | Hardware-level OVP (FB pin), SCP (CS pin), OTP (+140 °C), and UVP (VCC UVLO) - no external circuitry required |
| Pulse Frequency Modulation | Enables >90% efficiency at 230 VAC/50% load while maintaining stable regulation across 10:1 dimming range |
Applications
| LED Street Lighting Driver | Commercial Downlight Power Supply |
|---|---|
|
Use Scenario: Outdoor 100–150 W LED luminaire operating continuously at -40 °C to +85 °C ambient with surge immunity to 4 kV. IC Role / Device Role / Timing Role: Primary-side PFC controller managing both power factor correction and constant-current regulation via VS/VPK/CS/FB sensing. Use Value: Enables single-stage architecture meeting IEC61000-3-2 Class C and IEC61547 immunity standards without secondary feedback loop. |
Use Scenario: Indoor 20–40 W downlight with TRIAC dimming compatibility and flicker-free operation at 100 Hz. IC Role / Device Role / Timing Role: PSR controller executing PFM-based current regulation synchronized to AC line zero-crossings for smooth dimming response. Use Value: Delivers ±3% CC accuracy across 90–265 VAC input and 20–100% load, eliminating opto-coupler aging drift. |
| Industrial High-Bay LED Fixture | Smart LED Panel Light Driver |
|
Use Scenario: 120–240 W high-bay fixture in warehouse environments with frequent on/off cycling and thermal stress. IC Role / Device Role / Timing Role: Integrated PFC+CC controller providing open-load detection, thermal foldback, and fast restart after power interruption. Use Value: Sustains regulation stability during 1000+ thermal cycles; OTP hysteresis prevents oscillation near shutdown threshold. |
Use Scenario: Slim-profile 60×60 cm LED panel with integrated DALI interface and standby power <0.5 W. IC Role / Device Role / Timing Role: Low-quiescent-current (20 µA start-up, 1.3 mA operating) PSR controller enabling ultra-low standby consumption. Use Value: Meets ERP Tier 2 standby requirements while maintaining full PFC functionality during active mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar primary-side regulation PFC controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP1682EMTR-G1 | Revised version with enhanced ESD robustness (HBM 4 kV vs. 3 kV), tighter VFB(CV) tolerance (±1.5% vs. ±2.5%), and updated thermal shutdown hysteresis (+25 °C vs. +20 °C) | Required for new designs per Diodes' PCN; supports higher reliability in humid industrial environments | Select for all new designs; backward-compatible pinout and electrical behavior with improved long-term stability |
| BP57711E | Non-PFC PSR controller; lacks VS/VPK inputs and IEC61000-3-2 compliance circuitry; lower BOM cost but no harmonic mitigation | Suitable only for non-regulated or Class D (non-lighting) applications where PF >0.7 is acceptable | Choose only when PFC is not mandated; cannot replace AP1682MTR-OG1 in Class C-compliant LED drivers |
Compared with AP1682EMTR-G1, the AP1682MTR-OG1 offers identical functionality but reduced ESD immunity and looser CV threshold tolerance-making it suitable for legacy production but not recommended for new designs. BP57711E omits PFC entirely, trading harmonic compliance for cost savings in non-certified applications.
Availability
AP1682MTR-OG1 is available at Aetrix Electronics and suitable for LED street lighting, commercial downlights, and industrial high-bay fixtures requiring stable component supply, long-lifecycle support, and RoHS/Green compliance.
Supply support for AP1682MTR-OG1 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 connectivity solutions for industrial, consumer, and automotive markets.
The AP1682 belongs to Diodes' LED driver controller product line, engineered specifically for cost-sensitive, high-reliability offline LED lighting systems demanding single-stage PFC, tight CC regulation, and full safety protection integration.
FAQ
What is the minimum VCC start-up voltage for AP1682MTR-OG1?
The AP1682MTR-OG1 starts switching when VCC reaches 19 V (typical), with a guaranteed turn-on threshold between 18 V and 20 V. This UVLO threshold ensures reliable initiation only after sufficient auxiliary winding voltage is established, preventing erratic startup under marginal conditions.
Can AP1682MTR-OG1 drive a 600 V MOSFET directly?
Yes-the AP1682MTR-OG1's OUT pin delivers 300 mA source/sink current and clamps at 13.5 V (typical) when sourcing 5 mA, making it compatible with standard 600 V superjunction MOSFETs requiring ≤20 V gate drive. External gate resistor selection must ensure <190 ns rise time per datasheet CL=1 nF test condition.
How does the AP1682MTR-OG1 achieve power factor correction without secondary feedback?
It uses VS and VPK pins to reconstruct the input sine waveform in real time, then modulates switching frequency (PFM) to shape primary current proportionally-achieving >0.9 PF by aligning current peaks with voltage peaks across universal AC input, independent of output voltage feedback.
Is AP1682MTR-OG1 compliant with IEC61000-3-2 Class C?
Yes-when implemented per Diodes' reference design (DS40848, Figure 2), the AP1682MTR-OG1 meets IEC61000-3-2 Class C harmonic limits for lighting equipment up to 25 W per lamp and total input power ≤600 W, verified with THD <15% at full load and 230 VAC.
AP1682MTR-OG1 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:
- -
- Internal Switch(s):
- No
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 9V
- Voltage - Supply (Max):
- 21V
- Voltage - Output:
- -
- Current - Output / Channel:
- -
- Frequency:
- -
- Dimming:
- -
- Applications:
- -
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AP1682MTR-OG1 FAQ
1.How can I place an order for AP1682MTR-OG1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP1682MTR-OG1 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 AP1682MTR-OG1 reliable?
The price and inventory of AP1682MTR-OG1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP1682MTR-OG1 is usually 5 days.
3.What payment methods are accepted for AP1682MTR-OG1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP1682MTR-OG1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP1682MTR-OG1?
AP1682MTR-OG1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP1682MTR-OG1 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 AP1682MTR-OG1?
For technical support, including AP1682MTR-OG1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP1682MTR-OG1 requirements.
6.How does Aetrix verify that AP1682MTR-OG1 is sourced from the original manufacturer or authorized distributors?
All AP1682MTR-OG1 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 AP1682MTR-OG1 meets industry standards.
7.What is the process for return or replacement of AP1682MTR-OG1?
All AP1682MTR-OG1 units undergo pre-shipment inspection (PSI). If there is an issue with AP1682MTR-OG1, 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 AP1682MTR-OG1 part is unused and in its original packaging.
Return procedure for AP1682MTR-OG1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AP1682MTR-OG1 Tags
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CL2N8-G
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