My Inquiry
My Account
Diodes Incorporated AP1682MTR-PG1
- Part No.:
- AP1682MTR-PG1
- Manufacturer:
- Diodes Incorporated
- Category:
- LED Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AP1682MTR-PG1.pdf
- Description:
- IC LED DRIVER OFFL 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,542
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AP1682MTR-PG1 from Diodes Incorporated is a single-stage primary-side regulation (PSR) PFC controller for AC/DC LED drivers, implementing Pulse Frequency Modulation (PFM) to achieve >0.9 power factor and <15% THD across universal input (90–264 VAC). It delivers ±3% constant current regulation without opto-coupler or secondary CV/CC circuitry, and integrates over-voltage, over-current, short-circuit, and over-temperature protection. Used in offline LED streetlight and high-bay drivers requiring IEC61000-3-2 compliance.
For engineers reviewing the AP1682MTR-PG1 datasheet, AP1682MTR-PG1 pinout, AP1682MTR-PG1 application, or AP1682MTR-PG1 equivalent, this page provides verified functional context, SOIC-8 terminal mapping, real-world CC regulation performance, thermal shutdown behavior, and validated alternative options for PSR-based LED driver designs.
Technical Context
The AP1682 operates as a primary-side feedback controller that senses rectified input voltage via VS and VPK pins to shape input current and maintain sinusoidal draw. Its internal PFM modulator adjusts switching frequency based on FB voltage from an auxiliary winding, enabling accurate output current regulation without secondary sensing.
It integrates acceleration start control (triggered at 1.4–2.2 V on FB), peak current limiting (4 V threshold on CS), and UVLO with 18–20 V turn-on and 7–9 V hold-on thresholds. The gate driver delivers 300 mA sink/source with 100–190 ns rise/fall times into 1 nF load, supporting MOSFETs up to 600 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Topology | Single-stage PSR PFC + constant current LED driver controller |
| Input Range | 90–264 VAC universal input, supported by VS/VPK dual-sensing architecture |
| Power Factor | >0.9 at full load, meeting IEC61000-3-2 Class C requirements |
| CC Regulation | ±3% tolerance across line and load, enabled by FB-based acceleration stop and primary current sensing |
| Protection Features | OVP (4.5–7.5 V on FB), SCP (3–4 V on CS), OTP (140°C shutdown with 20°C hysteresis) |
| Supply Range | VCC = 9–21 V; UVLO turn-on at 18–20 V, turn-off at 7–9 V |
| Driver Output | 300 mA sink/source, 10–13.5 V clamp, 100–190 ns transition times (CL = 1 nF) |
Pinout & Package
AP1682MTR-PG1 is housed in a standard SOIC-8 package (4.00 × 5.00 mm body, 1.27 mm pitch), RoHS-compliant and halogen-free per Diodes Inc. "Green" definition (Br+Cl <1500 ppm, Sb <1000 ppm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 NC | No connection | Unused pad; must remain unconnected per datasheet |
| 2 VS | Rectified input voltage sensing | Monitors instantaneous AC line waveform for current shaping and zero-cross detection |
| 3 VPK | Rectified input peak voltage sensing | Enables input voltage feedforward to maintain stable PFC across universal mains range |
| 4 CS | Primary current sense input | Detects MOSFET drain current for cycle-by-cycle over-current protection and peak current limit (4 V threshold) |
| 5 FB | Auxiliary winding feedback | Sets no-load output voltage, triggers acceleration start (1.4–2.2 V), and enables OVP (4.5–7.5 V) |
| 6 GND | Power and signal ground reference | Common return for gate driver, bias circuits, and internal comparators |
| 7 OUT | High-current gate driver output | Drives external MOSFET gate with 300 mA capability and internal 12–15 V clamp |
| 8 VCC | Internal supply input | Accepts 9–21 V; powers control logic and driver; includes UVLO and OVP (28–36 V) |
Key Features
| Feature | Design Value |
|---|---|
| Primary-side constant current regulation | Eliminates opto-coupler, TL431, and secondary feedback components-reducing BOM count and layout complexity |
| Integrated acceleration start | Reduces startup time to <500 ms by temporarily increasing switching frequency until FB reaches 1.8 V |
| Open-load and reload detection | Uses FB voltage monitoring to detect LED string removal or reconnection without auxiliary sensors |
| Self-compensated control loop | Removes external compensation network (RC filter) while maintaining stability across temperature and line variations |
| Low-power operation | Start-up current ≤20 μA and operating current ≤1.3 mA enable efficient operation in standby and dimming modes |
Applications
| Street Lighting Driver | Industrial High-Bay Fixture |
|---|---|
Use Scenario: Outdoor 100–200 W LED luminaire operating from 220–240 VAC mains with IP66 enclosure and thermal derating. IC Role / Device Role / Timing Role: Primary-side PFC controller regulating output current while shaping input current to meet EN61000-3-2 Class C limits. Use Value: Enables single-stage topology with <15% THD and ±3% CC accuracy-reducing component count versus two-stage solutions. |
Use Scenario: Warehouse lighting system using 150 W LED modules with 0–10 V dimming interface and ambient temperature up to +85°C. IC Role / Device Role / Timing Role: Constant-current source controller with integrated OCP, OTP, and open-load detection for robust field operation. Use Value: Delivers stable current under wide input variation (±10%) and thermal stress, with automatic recovery after fault clearance. |
| Commercial Downlight Module | LED Retrofit Lamp (E27/B22) |
Use Scenario: 12–24 W integrated downlight with aluminum heat sink, operating from 90–305 VAC with surge immunity to 4 kV. IC Role / Device Role / Timing Role: Universal-input PSR controller managing MOSFET gate drive timing and current foldback during over-temp events. Use Value: Supports compact form factor via SOIC-8 footprint and eliminates secondary-side components-reducing PCB area by ~30%. |
Use Scenario: Self-ballasted A60 LED lamp replacing incandescent bulbs, requiring high PF (>0.9), low THD, and flicker-free dimming. IC Role / Device Role / Timing Role: Primary-side regulator synchronizing switching frequency with input zero-crossings to minimize EMI and improve dimmer compatibility. Use Value: Achieves smooth 10–100% dimming range with TRIAC dimmers due to adaptive PFM and fast transient response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar primary-side constant-current LED driver controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP1682EMTR-G1 | Enhanced version with improved ESD rating (HBM 4 kV vs. 3 kV), tighter VFB(OVP) tolerance (±5% vs. ±25%), and extended thermal hysteresis (25°C vs. 20°C) | Preferred for new designs targeting higher reliability in industrial environments with frequent thermal cycling | Select AP1682EMTR-G1 for production ramps; AP1682MTR-PG1 remains valid for legacy board reuse or cost-sensitive replacements |
| BP5609D | Non-isolated PSR controller with integrated 650 V MOSFET; lacks VPK pin and uses different FB threshold (2.5 V vs. 4.2 V typical) | Used in lower-cost, lower-power (<15 W) retrofit lamps where BOM reduction outweighs PFC precision | Choose BP5609D only when integrating high-voltage switch is acceptable and THD <20% is sufficient |
Compared with AP1682EMTR-G1, the AP1682MTR-PG1 offers identical core functionality but reduced ESD robustness and looser OVP tolerance-making it suitable for cost-optimized, non-safety-critical LED drivers. Versus BP5609D, it provides superior PFC accuracy and external MOSFET flexibility at the expense of integration density.
Availability
AP1682MTR-PG1 is available at Aetrix Electronics and suitable for street lighting drivers, industrial high-bay fixtures, and commercial downlight modules requiring stable component supply, long-term lifecycle support, and RoHS/Green compliance.
Supply support for AP1682MTR-PG1 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 protection solutions for industrial, automotive, and consumer markets.
The AP1682 belongs to Diodes' LED driver controller product line, designed specifically for cost-effective, high-efficiency, single-stage PSR topologies in universal-input LED lighting applications.
FAQ
What is the recommended minimum VCC hold-up capacitance for AP1682MTR-PG1?
For reliable operation across brown-out conditions, Diodes recommends ≥4.7 µF ceramic or low-ESR electrolytic capacitance on VCC. This ensures sustained gate drive during line dips down to 7 V, leveraging the device's 7–9 V UVLO hysteresis and 1.3 mA max operating current.
Can AP1682MTR-PG1 be used in isolated flyback configurations?
Yes-it is explicitly designed for isolated flyback-based LED drivers with auxiliary winding feedback. The FB pin interprets reflected output voltage from the auxiliary winding to regulate LED current without secondary-side components, and the SOIC-8 layout supports creepage/clearance compliance in Class II designs.
How does the AP1682MTR-PG1 implement power factor correction without a multiplier?
It uses input voltage feedforward via VS and VPK pins to reconstruct instantaneous line voltage, then shapes primary current by dynamically adjusting PFM frequency and on-time based on sensed CS and FB signals-achieving >0.9 PF without analog multipliers or complex digital control.
Is AP1682MTR-PG1 qualified for outdoor lighting applications with extended temperature range?
Yes-the device is rated for –40°C to +105°C ambient operation, with thermal shutdown at +140°C and 20°C hysteresis. Its SOIC-8 package meets JEDEC moisture sensitivity level MSL3, and the internal OTP protection ensures safe derating in enclosed luminaires with limited airflow.
AP1682MTR-PG1 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-PG1 FAQ
1.How can I place an order for AP1682MTR-PG1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP1682MTR-PG1 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-PG1 reliable?
The price and inventory of AP1682MTR-PG1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP1682MTR-PG1 is usually 5 days.
3.What payment methods are accepted for AP1682MTR-PG1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP1682MTR-PG1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP1682MTR-PG1?
AP1682MTR-PG1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP1682MTR-PG1 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-PG1?
For technical support, including AP1682MTR-PG1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP1682MTR-PG1 requirements.
6.How does Aetrix verify that AP1682MTR-PG1 is sourced from the original manufacturer or authorized distributors?
All AP1682MTR-PG1 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-PG1 meets industry standards.
7.What is the process for return or replacement of AP1682MTR-PG1?
All AP1682MTR-PG1 units undergo pre-shipment inspection (PSI). If there is an issue with AP1682MTR-PG1, 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-PG1 part is unused and in its original packaging.
Return procedure for AP1682MTR-PG1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AP1682MTR-PG1 Tags
-
BCR402RE6327HTSA1
Infineon Technologies
-
BCR430UXTSA2
Infineon Technologies
-
BCR420UE6433HTMA1
Infineon Technologies
-
BCR420UE6327HTSA1
Infineon Technologies
-
BCR421UE6327HTSA1
Infineon Technologies
-
LYT1604D-TL
Power Integrations
-
HV9910CLG-G
Microchip Technology
-
CL2N8-G
Microchip Technology
-
BCR420UW6-7
Diodes Incorporated
-
BCR421UW6-7
Diodes Incorporated
-
BCR420UFD-7
Diodes Incorporated
-
BCR421UFD-7
Diodes Incorporated
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
