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Monolithic Power Systems Inc. MP4088GN
- Part No.:
- MP4088GN
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- LED Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
MP4088GN.pdf
- Description:
- IC LED DRIVER OFFL TRIAC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,630
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Product details
Overview
MP4088GN from Monolithic Power Systems is a non-isolated, TRIAC-dimmable LED driver IC with integrated 500V MOSFET, designed for 230VAC input and up to 10W LED loads. It delivers constant current regulation via internal averaging feedback, achieves >0.7 power factor, and supports buck/buck-boost topologies using only a single-winding inductor.
For engineers reviewing the MP4088GN datasheet, MP4088GN pinout, MP4088GN application, or MP4088GN equivalent, this device is selected for cost-sensitive, compact residential/commercial LED lamps (A19, GU10, PAR) requiring flicker-free dimming, thermal foldback, and robust protection including OVP, SCP, and UVLO.
Technical Context
The MP4088GN implements MPS' proprietary hybrid operation mode-dynamically switching between DCM and CCM across the AC cycle-to maintain stable latching/holding current for smooth TRIAC triggering and high dimming linearity. Its internal HV regulator enables fast start-up without perceptible delay, while the 0.186V feedback reference and 0.4V CS threshold enable precise average current control.
Thermal protection operates in two stages: power de-rating begins at 145°C to prevent flicker, and full thermal shutdown activates at 160°C with 50°C hysteresis. Over-voltage protection is programmable via external resistors on the OVF pin, with a 2.0V trigger threshold and 2–32μs response window.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 198–265VAC: Validated for high-line European/Asian mains; supports universal 230V nominal operation. |
| Max Output Power | 10W: Enables compact A19/GU10 lamp designs with single-stage, non-isolated architecture. |
| Power Factor | >0.7: Meets basic IEC 61000-3-2 Class C harmonic limits for lighting equipment without active PFC stage. |
| Integrated MOSFET | 500V/8Ω (25°C): Eliminates external HV switch; supports direct connection to rectified 230VAC (peak ~375V). |
| LED Current Accuracy | ±5% typical: Achieved via internal 0.186V reference and 0.4V CS threshold with leading-edge blanking. |
| Thermal Shutdown | 160°C with 50°C hysteresis: Ensures automatic recovery after ambient cooling; prevents permanent IC damage. |
| OVP Threshold | 2.0V on OVF pin: Programmable output over-voltage limit; protects LEDs during open-circuit or dimmer failure. |
Pinout & Package
MP4088GN is packaged in TSOT23-5 - a 2.9mm × 1.6mm surface-mount package with exposed pad for thermal enhancement. Pin 1 is marked with a dot; the exposed pad must be soldered to GND plane for optimal thermal performance (θJA = 100°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Internal regulator supply | Accepts 4.2–4.7V; powers control circuitry; internal HV regulator charges external 10μF capacitor during dimmer-on phase. |
| OVF | Output voltage feedback | Monitors LED string voltage; triggers OVP if >2.0V after 2–32μs blanking window; enables programmable over-voltage cutoff. |
| GND | Signal and power ground | Reference node for all analog blocks; must be low-impedance; connects to exposed pad for thermal conduction. |
| CS | Current sense input | Senses voltage across external sense resistor; MOSFET turns off when CS ≥ 0.4V; includes 20ns leading-edge blanking. |
| HV | High-voltage MOSFET drain | Connects directly to rectified AC input (up to 500V); integrates 500V MOSFET; no external HV switch required. |
Key Features
| Feature | Design Value |
|---|---|
| TRIAC dimming compatibility | Hybrid DCM/CCM mode maintains stable latching current across full dimming range; eliminates pop-on/pop-off and step discontinuities. |
| Single-winding inductor support | Reduces BOM count and board area vs. transformer-based isolated drivers; enables <10mm height lamp designs. |
| Thermal foldback | Gradually reduces LED current above 145°C to eliminate visible flicker while maintaining illumination-no abrupt shutdown. |
| Programmable OVP | External R1/R2 divider on OVF pin sets precise over-voltage trip point; protects LEDs during open-circuit or dimmer fault conditions. |
| Integrated HV start-up | Internal 500V regulator draws current directly from HV node; eliminates external start-up resistor network and associated power loss. |
Applications
| Residential LED Lamps | Commercial Downlights |
|---|---|
|
Use Scenario: Retrofit A19 bulb operating directly from 230VAC mains with leading-edge TRIAC wall dimmer. IC Role / Device Role / Timing Role: Constant-current LED driver with hybrid-mode dimming control; regulates average LED current while synchronizing MOSFET switching to TRIAC conduction angle. Use Value: Delivers flicker-free dimming down to 5% with <±5% current accuracy; eliminates need for auxiliary winding or optocoupler. |
Use Scenario: GU10 spotlight in office ceiling grid, powered by 230VAC branch circuit with multi-location dimming. IC Role / Device Role / Timing Role: Non-isolated buck-boost LED controller; manages inductor current ripple and thermal foldback during sustained high-ambient operation. Use Value: Maintains consistent lumen output across 0–50°C ambient; power de-rating at 145°C prevents thermal-induced dimming instability. |
| PAR30/38 Track Lighting | Smart Plug-in LED Modules |
|
Use Scenario: 230VAC PAR38 lamp with integrated TRIAC dimmer interface and thermal management for enclosed fixtures. IC Role / Device Role / Timing Role: High-voltage LED driver with integrated 500V MOSFET; senses current via CS pin and regulates output using internal averaging loop. Use Value: Single-stage design achieves >0.7 PF and meets EN 61000-3-2 Class C without additional components; exposed pad ensures reliable thermal dissipation in confined housing. |
Use Scenario: Replaceable LED module for smart lighting systems requiring plug-and-play compatibility with legacy TRIAC dimmers. IC Role / Device Role / Timing Role: Standalone LED driver IC with auto-restart protection; handles short-circuit, over-voltage, and over-temperature faults without external supervision. Use Value: Full protection suite (UVLO, OVP, SCP, thermal shutdown) enables field-replaceable modules with zero external fault-handling logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TRIAC-dimmable LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NCL30000 | Fixed-frequency CCM-only operation; no hybrid mode; requires external HV startup resistor. | Limited dimming linearity below 20%; higher BOM count due to external start-up network and OVP divider. | Select when strict cost minimization outweighs dimming smoothness; not recommended for premium residential lamps. |
| Diodes Incorporated AL1676 | Supports 100–240VAC universal input; lower integration (no integrated HV MOSFET); requires external 600V switch. | Better suited for dual-voltage markets; larger solution size due to external MOSFET and gate driver. | Choose for global product variants needing 120/230VAC compatibility; avoid when board space or component count is constrained. |
Compared with NCL30000 and AL1676, MP4088GN uniquely combines integrated 500V MOSFET, hybrid dimming mode, and single-winding inductor support-enabling the smallest, lowest-BOM, flicker-free 230VAC TRIAC-dimmable LED solution below 10W.
Availability
MP4088GN is available at Aetrix Electronics and suitable for residential LED lamps, commercial downlights, and PAR-series track lighting requiring stable component supply, long-lifecycle assurance, and RoHS-compliant manufacturing.
Supply support for MP4088GN 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.
The MP4088GN belongs to MPS's LED driver product line, engineered specifically for cost-sensitive, non-isolated, TRIAC-dimmable lighting applications targeting A19, GU10, and PAR lamp form factors.
FAQ
What is the minimum recommended VCC capacitor value for MP4088GN?
A 10μF/25V electrolytic capacitor is specified for stable operation under TRIAC dimming. This value ensures sufficient charge retention during dimmer-off periods and supports the internal HV regulator's fast start-up. Smaller capacitors may cause intermittent restarts or reduced dimming range.
Can MP4088GN drive LEDs in boost topology?
No-MP4088GN supports only buck and buck-boost configurations. Its internal architecture and pinout (HV as MOSFET drain, CS referenced to GND) are incompatible with boost operation, which would require HV as source and CS referenced to output.
How does the hybrid operation mode improve dimming performance?
Hybrid mode dynamically switches between DCM and CCM based on AC phase angle: DCM ensures stable latching current at low dimming angles, while CCM maintains high efficiency and low EMI at high angles. This eliminates the "dead zone" and step transitions seen in fixed-mode drivers.
Is an external freewheeling diode mandatory?
Yes-an ultrafast diode (trr < 75ns, e.g., ES1G or WUGC10JH) is required. The MP4088GN lacks internal body diode capability; slow diodes cause excessive voltage spikes, increased EMI, and potential OVP false triggering during reverse recovery.
What happens during LED short-circuit condition?
The MP4088GN extends off-time to reduce switching frequency, entering hiccup mode. Output current drops to near zero, VCC discharges, and the IC auto-restarts once VCC recovers above 3.8V. This protects the MOSFET and inductor without requiring external fault latching.
Does MP4088GN require a heatsink in TSOT23-5 package?
No discrete heatsink is needed. The TSOT23-5 exposed pad must be soldered to a ≥1cm² copper pour connected to GND. With proper PCB thermal design (2oz copper, thermal vias), it sustains 10W operation at TA ≤ 50°C without exceeding 125°C junction temperature.
How is over-voltage protection configured?
OVP is set by a resistor divider (R2/R3) from LED+ to OVF pin. Using Equation VOUT_OVP = VOVP × (R2 + R3)/R2 − VD, a 2.0V threshold yields precise trip points-for example, 60V OVP with R2 = 100kΩ and R3 = 220kΩ (VD ≈ 0.7V).
MP4088GN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Type:
- AC DC Offline Switcher
- Topology:
- Buck, Boost
- Internal Switch(s):
- Yes
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 4.5V
- Voltage - Supply (Max):
- 5V
- Voltage - Output:
- -
- Current - Output / Channel:
- -
- Frequency:
- 22kHz
- Dimming:
- Triac
- Applications:
- Lighting
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC-EP
MP4088GN FAQ
1.How can I place an order for MP4088GN through Aetrix?
Please submit a Request for Quotation (RFQ) for MP4088GN 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 MP4088GN reliable?
The price and inventory of MP4088GN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP4088GN is usually 5 days.
3.What payment methods are accepted for MP4088GN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP4088GN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP4088GN?
MP4088GN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP4088GN 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 MP4088GN?
For technical support, including MP4088GN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP4088GN requirements.
6.How does Aetrix verify that MP4088GN is sourced from the original manufacturer or authorized distributors?
All MP4088GN 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 MP4088GN meets industry standards.
7.What is the process for return or replacement of MP4088GN?
All MP4088GN units undergo pre-shipment inspection (PSI). If there is an issue with MP4088GN, 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 MP4088GN part is unused and in its original packaging.
Return procedure for MP4088GN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MP4088GN Tags
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