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Monolithic Power Systems Inc. MP4030AGS-P
- Part No.:
- MP4030AGS-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- LED Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MP4030AGS-P.pdf
- Description:
- NRFND:FOR NEW DESIGNS,RECOMMEND
- Quantity:
- Payment:
- Shipping:
Inventory:2,227
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Product details
Overview
MP4030AGS-P from Monolithic Power Systems is a TRIAC-dimmable, primary-side-control offline LED controller with integrated active PFC and an internal low-side MOSFET (30V BVDSS, 260mΩ RDS(ON)). It delivers accurate constant-current LED output in isolated flyback topologies without optocoupler or secondary-side feedback, supports 1%–100% flicker-free dimming, and operates in boundary-conduction mode for high efficiency in residential and commercial lighting.
For engineers reviewing the MP4030AGS-P datasheet, MP4030AGS-P pinout, MP4030AGS-P application, or MP4030AGS-P equivalent, key selection criteria include its real-current-control architecture, VCC fast-start charging circuit, 8-pin SOIC package with validated pin functions (MULT, ZCD, DP, S, D), and compatibility with TRIAC-dimming infrastructure in legacy AC lighting systems.
Technical Context
The MP4030AGS-P implements proprietary real-current control using primary-side sensing via the S pin and multiplier-based line-voltage tracking on the MULT pin to reconstruct LED current without secondary feedback. Its zero-current detection (ZCD) circuit triggers MOSFET turn-on at valley points to minimize switching loss and EMI.
It integrates boundary-conduction-mode control with 5.1µs minimum OFF time, cycle-by-cycle OCP (2.73V threshold), and auto-restart fault protection including OVP (5.4V on ZCD), SCP, OTP (150°C), and UVLO (9V/7V hysteresis). The internal dimming pull-down MOSFET (BVDSS=30V, RDS(ON)=28Ω) enables precise phase-angle detection across full dimming range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Operating Range | 11V to 27V - powers control logic and gate driver; internal charging circuit maintains startup until auxiliary winding takes over |
| LED Dimming Range | 1% to 100% - achieved via MULT pin phase detection and COMP clamping at 1.9V to sustain TRIAC holding current |
| Power Factor | >0.9 - enabled by sinusoidal multiplier reference shaping primary current to match input voltage phase |
| OCP Threshold | 2.73V on S pin - cycle-by-cycle over-current protection with 685ns leading-edge blanking prevents false triggering |
| OVP Threshold | 5.4V on ZCD pin - monitors reflected auxiliary winding voltage to protect output stage without direct output sensing |
| Thermal Shutdown | 150°C with 30°C hysteresis - latches shutdown until VCC drops below UVLO, ensuring safe thermal recovery |
| Start-up Time | <115µs - internal auto-starter guarantees MOSFET turn-on if ZCD fails, eliminating perceptible delay |
Pinout & Package
MP4030AGS-P is housed in an 8-pin SOIC package (SOIC8), with exposed pad not electrically connected. Pin spacing is 1.27mm, body width 3.9mm, and maximum height 1.75mm per JEDEC MS-012.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 MULT | Multiplier Input & Dimming Phase Detector | Accepts half-wave rectified line voltage divider signal; detects TRIAC turn-on/off (0.15V/0.35V thresholds) and provides sinusoidal reference for current control loop |
| 2 ZCD | Zero-Current Detection & OVP Sense | Triggers MOSFET turn-on at valley point; monitors auxiliary winding for over-voltage (5.4V threshold after 1.85µs blanking) |
| 3 VCC | Supply Voltage Input | Powered by internal charging circuit from D pin during startup; regulated to 10V operating level with 9V/7V UVLO hysteresis |
| 4 DP | Dimming Pull-Down Drain | Drives external resistor to pull down rectified input during TRIAC OFF interval; ensures clean phase detection and avoids mis-triggering |
| 5 S | Main MOSFET Source Sensing | Connects to sense resistor to ground; feeds current comparator with 2.73V OCP threshold and 2.3V clamp for cycle-by-cycle limiting |
| 6 D | Main MOSFET Drain & VCC Charger | Internally connects to VCC via JFET/diode; supplies initial charge to bulk capacitor before auxiliary winding takeover |
| 7 GND | Signal & Gate Drive Return | Common reference for control logic, gate driver, and current-sense amplifier; requires low-impedance PCB layout |
| 8 COMP | Loop Compensation Node | Connects external RC network to stabilize current regulation loop; clamped between 1.9V and 4.9V for dimming linearity |
Key Features
| Feature | Design Value |
|---|---|
| Primary-Side Real-Current Control | Eliminates optocoupler and TL431, reducing BOM count by ≥4 components and enabling compact, cost-effective isolated LED drivers |
| Integrated VCC Charging Circuit | Enables sub-115µs start-up with no perceptible delay; eliminates need for external high-voltage start-up resistor network |
| Flicker-Free TRIAC Dimming | 1%–100% range with 25% line-cycle blanking and COMP clamping ensures stable dimming even at lowest settings without random flicker |
| Built-in Boundary-Conduction Mode | Reduces MOSFET turn-on loss and secondary diode reverse-recovery loss, achieving >88% typical efficiency in 7-LED 350mA designs |
| Multi-Fault Auto-Restart Protection | OVP, SCP, OCP, OTP, and UVLO all latch and auto-restart only after VCC drops below 7V - prevents uncontrolled lockout during transient faults |
Applications
| Residential LED Lamps | Commercial Downlights |
|---|---|
|
Use Scenario: Retrofit A19 and PAR30 lamps replacing incandescent bulbs in standard wall-dimmer circuits. IC Role / Device Role / Timing Role: Primary-side LED current controller with TRIAC phase detection and real-current regulation; manages flyback converter timing in boundary-conduction mode. Use Value: Enables full 1%–100% dimming range without flicker or pop-on, meeting ENERGY STAR SSL V2.1 requirements for residential dimmable luminaires. |
Use Scenario: 20–40W recessed downlights in office ceilings with leading-edge TRIAC wall dimmers. IC Role / Device Role / Timing Role: Isolated flyback controller with active PFC and integrated MOSFET; regulates constant current while maintaining PF >0.9 and THD <20%. Use Value: Reduces system component count by eliminating secondary feedback, lowering bill-of-materials cost by ~12% versus optocoupler-based solutions. |
| Industrial Track Lighting | Hotel & Hospitality Lighting |
|
Use Scenario: Adjustable track heads in retail stores requiring smooth dimming across wide ambient temperature ranges (−40°C to +125°C). IC Role / Device Role / Timing Role: High-reliability LED driver IC with thermal shutdown (150°C) and auto-restart; handles frequent on/off cycling and voltage surges. Use Value: Maintains stable current regulation under line voltage variation (100–305VAC) and load step changes, preventing visible brightness shifts during operation. |
Use Scenario: Dimmable sconces and pendants in hotel rooms using legacy Lutron® or Leviton® TRIAC dimmers. IC Role / Device Role / Timing Role: Dimming interface controller with DP pin pull-down and MULT pin phase decoding; synchronizes LED current to AC line phase angle. Use Value: Eliminates compatibility issues with aging dimmer hardware, delivering silent, buzz-free operation and consistent dimming curve across 10,000+ cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TRIAC-dimmable, primary-side LED controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP4027AGS-P | No integrated main MOSFET; requires external 600V MOSFET; lower power factor (>0.85) and narrower dimming range (5%–100%) | Suitable for higher-output (>60W), non-isolated buck-boost LED drivers where external FET selection is preferred | Select when higher voltage blocking or thermal separation of controller/FET is required; not drop-in compatible due to pinout and bias differences |
| NCL30001DR2G | Fixed-frequency CCM operation; no internal MOSFET; uses external op-amp for current sense; lacks DP pin and expanded dimming range | Targets industrial-grade 0–10V/PWM dimming systems rather than TRIAC infrastructure; requires more external components | Choose for fixed-frequency EMI compliance needs or where analog dimming interface is mandatory; not suitable for retrofit TRIAC dimming |
Compared with MP4030AGS-P, MP4027AGS-P trades integration for flexibility in high-voltage designs, while NCL30001DR2G prioritizes deterministic frequency control over dimming fidelity-making MP4030AGS-P uniquely suited for cost-sensitive, fully integrated TRIAC-dimmable retrofit lamps.
Availability
MP4030AGS-P is available at Aetrix Electronics and suitable for residential LED lamp replacement, commercial downlight production, and industrial track lighting requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for MP4030AGS-P 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
Monolithic Power Systems (MPS) is a fabless semiconductor company specializing in high-performance analog and power ICs, with design centers in the US, China, and Taiwan, and global manufacturing partnerships.
The MP4030A product line targets cost-optimized, TRIAC-compatible LED lighting systems requiring high power factor, flicker-free dimming, and minimal external components - specifically engineered for single-stage isolated flyback LED drivers in retrofit and new-build applications.
FAQ
What is the function of the DP pin on MP4030AGS-P?
The DP (Dimming Pull-Down) pin is the drain terminal of an internal MOSFET used to actively pull down the rectified AC input voltage during the TRIAC OFF interval. Connected via an external resistor to the D pin, it ensures clean phase-angle detection on the MULT pin and prevents mis-triggering caused by residual voltage, enabling reliable 1%–100% dimming performance.
Does MP4030AGS-P require an external MOSFET?
No. MP4030AGS-P integrates a low-side MOSFET with 30V breakdown voltage and 260mΩ typical RDS(ON), sufficient for ≤350mA LED current in 108–132VAC input designs. For higher-power or higher-voltage applications (e.g., 230VAC universal input), an external high-voltage MOSFET must be used with MP4027AGS-P instead.
How does MP4030AGS-P achieve primary-side current regulation without secondary feedback?
It uses proprietary real-current control: the S pin senses primary current through a source resistor, while the MULT pin provides a scaled line-voltage reference. An internal multiplier shapes the current reference waveform, and the ZCD pin detects transformer demagnetization to synchronize switching. This allows accurate LED current calculation using VREF (0.403V), turn ratio, and RS - eliminating optocoupler dependency.
What protections are included and how do they behave under fault conditions?
MP4030AGS-P includes OVP (5.4V on ZCD), SCP (via ZCD timeout), OCP (2.73V on S), OTP (150°C), and UVLO (9V/7V). All protections latch and force the IC into quiescent mode; auto-restart occurs only after VCC drops below 7V, ensuring controlled recovery without unregulated bursts of energy during sustained faults.
Can MP4030AGS-P operate with both leading-edge and trailing-edge TRIAC dimmers?
MP4030AGS-P is optimized for leading-edge (standard TRIAC) dimmers, as confirmed by its MULT pin detection thresholds (0.15V OFF, 0.35V ON) and DP pin pull-down behavior. Trailing-edge (ELV) dimmer compatibility is not specified in the datasheet and requires validation with actual ELV hardware; MPS recommends MPQ4030A-Q for automotive-grade ELV support.
What is the purpose of the 5.1µs minimum OFF time?
The 5.1µs minimum OFF time limits maximum switching frequency to prevent excessive MOSFET gate drive losses and EMI emissions at high line voltages. It ensures stable boundary-conduction-mode operation across 100–305VAC inputs and improves conducted EMI performance, particularly in the 150kHz–30MHz band required for EN55015 compliance.
Is MP4030AGS-P RoHS-compliant and lead-free?
Yes. MP4030AGS-P is lead-free and fully compliant with the EU RoHS directive (2011/65/EU). It uses matte-tin plating on SOIC8 leads and meets JEDEC J-STD-020 moisture sensitivity level 3 (MSL3) for standard surface-mount assembly processes.
MP4030AGS-P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- MP
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Type:
- AC DC Offline Switcher
- Topology:
- Flyback
- Internal Switch(s):
- Yes
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 11V
- Voltage - Supply (Max):
- 27V
- Voltage - Output:
- -
- Current - Output / Channel:
- -
- Frequency:
- -
- Dimming:
- Triac
- Applications:
- Commercial & Industrial Lighting
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MP4030AGS-P FAQ
1.How can I place an order for MP4030AGS-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MP4030AGS-P 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 MP4030AGS-P reliable?
The price and inventory of MP4030AGS-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP4030AGS-P is usually 5 days.
3.What payment methods are accepted for MP4030AGS-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP4030AGS-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP4030AGS-P?
MP4030AGS-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP4030AGS-P 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 MP4030AGS-P?
For technical support, including MP4030AGS-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP4030AGS-P requirements.
6.How does Aetrix verify that MP4030AGS-P is sourced from the original manufacturer or authorized distributors?
All MP4030AGS-P 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 MP4030AGS-P meets industry standards.
7.What is the process for return or replacement of MP4030AGS-P?
All MP4030AGS-P units undergo pre-shipment inspection (PSI). If there is an issue with MP4030AGS-P, 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 MP4030AGS-P part is unused and in its original packaging.
Return procedure for MP4030AGS-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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