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Monolithic Power Systems Inc. MP4054GJ-Z
- Part No.:
- MP4054GJ-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- LED Drivers
- Package:
- SOT-23-8 Thin, TSOT-23-8
- Datasheet:
-
MP4054GJ-Z.pdf
- Description:
- IC LED DRVR OFFL ANALOG TSOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:4,669
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Product details
Overview
MP4054GJ-Z from Monolithic Power Systems is a non-isolated offline LED controller with integrated active power factor correction (PFC), designed for high-side and low-side buck-boost topologies. It delivers ≥0.9 power factor across universal AC input (85–265VAC), achieves <1% line/load regulation, and provides accurate constant-current LED drive up to 200mA in 30-LED string configurations. Its valley-switching mode reduces MOSFET switching losses and EMI in solid-state lighting drivers.
For engineers reviewing the MP4054GJ-Z datasheet, MP4054GJ-Z pinout, MP4054GJ-Z application, or MP4054GJ-Z equivalent, this device is selected for cost-sensitive, high-efficiency non-isolated LED drivers requiring robust brown-out, over-voltage, short-circuit, over-current, and thermal protection - especially where compact TSOT23-8 packaging and single-stage PFC are critical.
Technical Context
The MP4054GJ-Z implements real-current control using a proprietary dual-function CS/ZCD pin that simultaneously senses MOSFET current during ON-time and detects zero-current crossing during OFF-time to enable valley switching. Its internal multiplier circuit accepts a rectified-line-derived sinusoidal signal at MULT to shape inductor peak current, achieving high PF without external controllers.
It integrates a totem-pole gate driver (0.8A source / –1A sink) with clamped output (6.7–14.5V), programmable minimum off-time (5.5µs), leading-edge blanking (400ns OCP, 1.6µs OVP), and auto-restart recovery after fault latch. Protection includes cycle-by-cycle current limit, VCC UVLO (25.5V turn-on / 9.5V turn-off), and thermal shutdown at 150°C with 25°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Topology Support | Non-isolated low-side & high-side buck-boost; enables single-stage PFC without isolation transformer |
| Power Factor | ≥0.9 over 85–265VAC input; achieved via internal multiplier-driven sinusoidal current shaping |
| LED Current Accuracy | <1% line and load regulation; enabled by real-current control and 0.413V precision FB reference |
| Switching Mode | Valley switching; reduces turn-on loss and diode reverse-recovery loss for higher efficiency & lower EMI |
| Protection Features | OVP (5.1V ZCD threshold), SCP (auto-restart at ~5kHz), OCP (2.46V CS threshold), OTP (150°C), brown-out (0.3V MULT detection) |
| Gate Drive Capability | 0.8A source / –1A sink; drives external MOSFET directly; output clamped to 14.5V max, >6.7V min |
| Operating Input Range | VCC supply: 12–28V; supports auxiliary-winding bias after startup; UVLO hysteresis = 15.7V |
Pinout & Package
MP4054GJ-Z is housed in a thermally enhanced TSOT23-8 package (2.9mm × 1.6mm × 0.85mm), optimized for high-power-density LED driver PCB layouts with exposed pad for thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VCC | Power supply input | Bypassed with 4.7µF capacitor; powers internal logic and gate driver; triggers UVLO at 9.5V/25.5V thresholds |
| 2 MULT | Multiplier input | Accepts rectified-line voltage divider signal; enables PFC and brown-out detection (0.3V threshold) |
| 3 NC | No-connect terminal | Must remain floating; no internal connection or function |
| 4 COMP | Error amplifier compensation node | Connects RC network to stabilize current loop; clamped between 1.5V and 4.75V for safe loop control |
| 5 GND | Signal and power ground return | Common reference for control signals, gate drive, and sensing; requires low-impedance PCB plane |
| 6 FB | LED current feedback input | Direct-sense node for high-side configurations; references 0.413V internal bandgap for precise current regulation |
| 7 CS/ZCD | Dual-function current sense & zero-cross detect | Monitors MOSFET current during ON-time; detects inductor zero-current during OFF-time to trigger valley switching and OVP/OCP |
| 8 GATE | High-current gate driver output | Drives external MOSFET with 0.8A source/–1A sink; clamped to 14.5V; ensures reliable turn-on down to 6.7V |
Key Features
| Feature | Design Value |
|---|---|
| Valley switching architecture | Reduces switching loss and EMI by triggering MOSFET turn-on at inductor current zero-crossing |
| Integrated active PFC | Eliminates need for separate PFC controller; achieves ≥0.9 PF across universal AC input without extra ICs |
| Single-chip protection suite | Combines OVP, SCP, OCP, OTP, brown-out, UVLO, and auto-restart - all internally sensed and latched |
| Real-current control method | Enables <1% LED current regulation accuracy in both low-side and high-side buck-boost topologies |
| TSOT23-8 thermal performance | θJA = 100°C/W on 4-layer PCB; supports 1.25W continuous dissipation at +25°C ambient |
Applications
| Commercial LED Troffer Drivers | Industrial High-Bay Lighting |
|---|---|
Use Scenario: 120VAC/230VAC-powered troffer fixtures with 30–60 LED strings in office buildings and retail spaces. IC Role / Device Role / Timing Role: Primary LED current controller implementing valley-switching buck-boost with active PFC to meet ENERGY STAR and IEC 61000-3-2 Class C harmonic limits. Use Value: Enables single-stage, non-isolated design that cuts BOM cost by 30% vs. isolated flyback + PFC combo while maintaining >90% efficiency and PF ≥0.92. | Use Scenario: 277VAC industrial high-bay luminaires driving 100W+ LED loads in warehouses and factories. IC Role / Device Role / Timing Role: High-side buck-boost controller regulating constant current under wide input variation (200–305VAC) and high ambient temperature (up to +85°C). Use Value: Delivers stable LED current with <1% drift over temperature and line, leveraging FB pin direct sensing and thermal shutdown at 150°C for long-term reliability. |
| Residential Smart Bulb Drivers | T8 LED Tube Retrofit Drivers |
Use Scenario: Dimmable/non-dimmable A19 and PAR30 smart bulbs operating directly from 120VAC/230VAC mains. IC Role / Device Role / Timing Role: Low-side buck-boost controller with integrated brown-out protection and auto-restart to maintain light output during grid sags and surges. Use Value: Prevents visible flicker during 100ms brown-outs via 42ms detection window and soft COMP recovery, meeting IEC TR 61547 immunity requirements. | Use Scenario: Direct-wire T8 LED tube replacements for fluorescent fixtures (ballast bypass), accepting 120–277VAC input. IC Role / Device Role / Timing Role: Non-isolated controller managing 36V/500mA output in low-side buck-boost with OVP triggered from auxiliary winding voltage. Use Value: Eliminates isolation barrier while achieving 1kV surge withstand via layout-optimized snubbers and 630V-rated RF EMI cap (C5), satisfying UL 1598 and EN 62368-1. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar non-isolated offline LED controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP4056GJ-Z | Same TSOT23-8 package; adds dimming interface (PWM/Analog) and improved THD compensation circuitry | Required for phase-cut or 0–10V dimmable systems; not drop-in compatible due to added pin functions | Select when dimming capability and sub-10% THD at high line are mandatory |
| BP57722E | Fixed-frequency (65kHz) controller; no valley switching; lower integration (external OVP/ZCD) | Suitable for cost-optimized, lower-performance drivers where EMI and efficiency are secondary | Choose only if BOM cost reduction outweighs 3–5% efficiency loss and higher thermal stress |
Compared with MP4056GJ-Z, MP4054GJ-Z offers simpler implementation and lower system cost for non-dimmable applications, while BP57722E trades valley-switching efficiency and integrated protection for reduced component count - making MP4054GJ-Z optimal for balanced performance, safety, and manufacturability in commercial-grade LED drivers.
Availability
MP4054GJ-Z is available at Aetrix Electronics and suitable for commercial LED troffer drivers, industrial high-bay lighting, and residential smart bulb designs requiring stable component supply, RoHS-compliant manufacturing, and long-lifecycle support.
Supply support for MP4054GJ-Z 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 distribution through authorized partners.
The MP4054 belongs to MPS's offline LED controller product line, engineered specifically for cost-effective, high-efficiency non-isolated lighting solutions that replace traditional isolated flyback + PFC architectures in universal-input AC/DC LED drivers.
FAQ
What topology configurations does MP4054GJ-Z support?
The MP4054GJ-Z supports both low-side and high-side buck-boost topologies. In low-side configuration, it uses CS/ZCD for current sensing and zero-current detection; in high-side configuration, it uses the FB pin for direct LED current feedback. Both achieve active PFC and valley switching without isolation transformers.
How does MP4054GJ-Z implement power factor correction without a separate PFC controller?
It uses an internal multiplier circuit fed by the MULT pin, which connects to a resistor divider from the rectified AC line. The multiplier shapes the inductor peak current to follow the input voltage waveform, achieving ≥0.9 PF across 85–265VAC without external controllers or boost stages.
What is the role of the CS/ZCD pin, and why is it dual-function?
The CS/ZCD pin serves two time-multiplexed roles: during MOSFET ON-time, it senses current for OCP and real-current control; during OFF-time, it detects zero-current crossing for valley switching and monitors auxiliary winding voltage for OVP. This integration eliminates external comparators and reduces component count.
Can MP4054GJ-Z be used in dimmable LED drivers?
No - MP4054GJ-Z lacks dedicated dimming interfaces (PWM, analog, or DALI). For dimmable applications, MPS recommends the pin-compatible MP4056GJ-Z, which adds PWM/DC dimming control and enhanced THD compensation while retaining the same TSOT23-8 footprint and protection features.
What is the minimum off-time, and how does it affect EMI performance?
The MP4054GJ-Z enforces a fixed minimum off-time of 5.5µs to limit maximum switching frequency. This prevents excessive high-frequency harmonics, improves EMI compliance, and stabilizes operation under light-load conditions where variable-frequency controllers might enter ultrasonic or audible ranges.
How does brown-out protection work, and what is its response time?
Brown-out protection monitors the peak value of the MULT signal. If the peak falls below 0.3V for ≥42ms (typical), the IC disables switching by pulling COMP to zero. Recovery occurs when MULT exceeds 0.4V, followed by soft-start of COMP - preventing inductor saturation and LED current instability during grid sags.
Is MP4054GJ-Z RoHS-compliant and halogen-free?
Yes - MP4054GJ-Z is lead-free and fully compliant with the EU RoHS directive (2011/65/EU). MPS confirms green status per its Quality Assurance documentation, and the TSOT23-8 package meets JEDEC MSL-3 moisture sensitivity and halogen-free material requirements.
MP4054GJ-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- SOT-23-8 Thin, TSOT-23-8
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Type:
- AC DC Offline Switcher
- Topology:
- Flyback, Step-Down (Buck), Step-Up (Boost)
- Internal Switch(s):
- No
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 12V
- Voltage - Supply (Max):
- 28V
- Voltage - Output:
- -
- Current - Output / Channel:
- -
- Frequency:
- -
- Dimming:
- Analog
- Applications:
- Lighting
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-8
MP4054GJ-Z FAQ
1.How can I place an order for MP4054GJ-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP4054GJ-Z 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 MP4054GJ-Z reliable?
The price and inventory of MP4054GJ-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP4054GJ-Z is usually 5 days.
3.What payment methods are accepted for MP4054GJ-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP4054GJ-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP4054GJ-Z?
MP4054GJ-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP4054GJ-Z 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 MP4054GJ-Z?
For technical support, including MP4054GJ-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP4054GJ-Z requirements.
6.How does Aetrix verify that MP4054GJ-Z is sourced from the original manufacturer or authorized distributors?
All MP4054GJ-Z 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 MP4054GJ-Z meets industry standards.
7.What is the process for return or replacement of MP4054GJ-Z?
All MP4054GJ-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP4054GJ-Z, 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 MP4054GJ-Z part is unused and in its original packaging.
Return procedure for MP4054GJ-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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