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Monolithic Power Systems Inc. MP5034GJ-P
- Part No.:
- MP5034GJ-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- SOT-23-8 Thin, TSOT-23-8
- Datasheet:
-
MP5034GJ-P.pdf
- Description:
- IC PWR SWTCH P-CHAN 1:1 TSOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:270
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Product details
Overview
MP5034GJ-P from Monolithic Power Systems is a USB charging port controller integrating Qualcomm Quick Charge 3.0 protocol, BC1.2 DCP, divider mode, and 1.2V/1.2V mode detection - all without external user interaction. It operates from 3.6V to 14V input, delivers ±1% QC3.0 bus voltage accuracy (5V/9V/12V), and features integrated input OVP with automatic discharge and thermal shutdown. Used in AC/DC wall adapters and power banks to enable adaptive high-voltage USB charging.
For engineers reviewing the MP5034GJ-P datasheet, MP5034GJ-P pinout, MP5034GJ-P application, or MP5034GJ-P equivalent, this device is selected for USB port intelligence in multi-voltage charging systems requiring auto-negotiation, robust overvoltage protection, and seamless integration with buck/boost/AC-DC converters via ADJ-controlled feedback regulation.
Technical Context
The MP5034GJ-P implements a hardware-based, state-machine-driven USB charging protocol stack that autonomously detects downstream device capabilities across BC1.2, QC2.0, QC3.0, and legacy modes using DP/DM voltage signaling. Its ADJ pin sinks up to 500µA to dynamically adjust upstream converter output voltage in 200mV QC3.0 steps - enabling smooth, glitch-free transitions between 5V, 9V, and 12V bus levels.
OVP protection uses a dynamic threshold (110–120% of VIN) with fast comparator response and active input-to-ground discharge during high-to-low voltage transitions. Thermal shutdown activates at 160°C with 35°C hysteresis, and EN pin supports logic-level enable/disable with internal 7–16µA auto-pull-up current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input voltage range | 3.6V to 14V - powers directly from common AC/DC or battery-derived rails without LDO pre-regulation. |
| QC3.0 bus voltage accuracy | ±1% at 9V and 12V - ensures compliance with QC3.0 specification for reliable handshake and load acceptance. |
| ADJ sink current | 500µA max - sets practical limit on FB resistor sizing for stable upstream converter control loop design. |
| DP/DM output impedance (Divider mode) | 18–28kΩ - defines RC time constant with cable capacitance, ensuring reliable signal integrity during detection. |
| OVP threshold | 110–120% of VIN - scales protection with operating voltage, preventing false trips during QC3.0 transitions. |
| Thermal shutdown | 160°C activation / 125°C recovery - provides fail-safe operation under sustained overload or poor PCB thermal design. |
| Quiescent current | 250–320µA at 5V - enables low-power standby in always-on USB ports without compromising detection responsiveness. |
Pinout & Package
MP5034GJ-P is housed in an 8-pin TSOT23-8 package with exposed thermal pad (pin 4 GND). The package supports high-density layout and efficient heat dissipation in compact USB charger designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 EN | Enable control | Logic-high enable with internal 7–16µA pull-up; pulling low disables all functions and reduces IQ to 280µA. |
| 2,3 IN | Power input | Dual pins connected together on PCB to reduce trace resistance and improve current handling for up to 3A applications. |
| 4 GND | Ground reference | Primary ground return and thermal pad connection point; must be solidly tied to large copper area for thermal management. |
| 5 ADJ | Voltage regulation interface | Sinks controlled current from upstream converter's FB node to adjust output voltage - core of QC3.0 dynamic bus control. |
| 6 NC | No connection | Must be grounded on PCB; not electrically connected internally - prevents noise coupling if left floating. |
| 7 DM | USB D− data line | Bi-directional handshake pin for BC1.2, QC2.0/3.0 negotiation; outputs 0.25–0.4V low or 1.8–2.2V high per QC3.0 spec. |
| 8 DP | USB D+ data line | Bi-directional handshake pin; outputs 0.25–0.4V low or 1.8–2.2V high; timing-critical for QC3.0 mode transitions. |
Key Features
| Feature | Design Value |
|---|---|
| Multi-protocol auto-detection | Hardware-accelerated recognition of BC1.2 DCP, 1.2V/1.2V, Divider, QC2.0, and QC3.0 - eliminates firmware dependency and startup delay. |
| Dynamic OVP with discharge | Scalable 110–120% VIN threshold + active input-to-ground discharge path - prevents damage during rapid bus voltage collapse (e.g., device unplug). |
| Smooth QC3.0 voltage transition | 200mV stepwise slew rate with <60ms glitch time - avoids undershoot/overshoot that could reset connected devices or trigger protection. |
| ADJ-controlled feedback interface | 500µA sink capability with precise current matching - enables accurate, stable regulation of third-party DC/DC converters without modification. |
| Thermal fault recovery | 160°C shutdown with 35°C hysteresis - allows automatic resumption after cooling, avoiding latch-up in intermittently overloaded conditions. |
Applications
| AC/DC Wall Adapter | Portable Power Bank |
|---|---|
Use Scenario: Dual-port 18W wall charger delivering 5V/3A or 9V/2A based on connected device. IC Role / Device Role / Timing Role: Primary USB port intelligence unit managing DP/DM handshaking, bus voltage selection, and upstream converter feedback control. Use Value: Enables single-chip QC3.0 support without MCU, reducing BOM count and firmware validation burden while maintaining ±1% voltage accuracy. |
Use Scenario: 20,000mAh power bank with dual USB-A outputs supporting fast recharge of smartphones and tablets. IC Role / Device Role / Timing Role: Charging protocol arbitrator that negotiates optimal VBUS level with each port's connected device independently. Use Value: Delivers up to 12V/1.5A per port using existing boost converter topology - extends usable battery energy by ~25% vs fixed 5V output. |
| Automotive USB Charger | USB-C PD Companion (Legacy Port) |
Use Scenario: In-car 12V-to-USB charger with wide-input tolerance (9–16V) and transient immunity. IC Role / Device Role / Timing Role: Input-conditioned USB port controller interfacing with automotive-grade buck converter and providing OVP during load dump. Use Value: Survives 16V transients and regulates bus voltage accurately despite input variation - meets ISO 7637-2 pulse 5a requirements. |
Use Scenario: USB-A port on USB-C PD adapter providing backward compatibility for non-PD devices. IC Role / Device Role / Timing Role: Standalone BC1.2/QC3.0 detector coexisting with USB-C PD controller, sharing same power stage. Use Value: Adds legacy charging support without duplicating power conversion - leverages existing 5–20V rail and FB node for minimal footprint increase. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB charging port control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NCP4354 | Supports QC2.0 only; no QC3.0 dynamic stepping; requires external resistors for DCP modes. | Limited to fixed 5V/9V/12V selection without intermediate steps; lacks ADJ-controlled feedback interface. | Select when QC3.0 is unnecessary and cost sensitivity outweighs flexibility. |
| Diodes Incorporated AP43702 | Includes USB-C PD 2.0 support but requires I²C configuration; higher quiescent current (450µA). | Designed for mixed USB-A/USB-C implementations; adds firmware complexity for mode selection. | Select when future-proofing for USB-C migration is required and system has MCU resources. |
Compared with NCP4354 and AP43702, MP5034GJ-P uniquely combines QC3.0 hardware autonomy, ADJ-based analog feedback control, and minimal external component count - making it optimal for cost-sensitive, MCU-less, high-reliability USB-A charging systems.
Availability
MP5034GJ-P is available at Aetrix Electronics and suitable for AC/DC wall adapters, portable power banks, and automotive USB chargers requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for MP5034GJ-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 MP5034 belongs to MPS's USB Power Delivery and Charging Controller product line, engineered specifically for intelligent, protocol-aware USB port management in space-constrained, high-efficiency power conversion systems.
FAQ
What is the function of the NC pin on MP5034GJ-P?
Pin 6 is a no-connect terminal with no internal electrical connection. Per MPS layout guidelines, it must be tied to ground on the PCB to minimize noise coupling and prevent floating node effects. It is not safe to connect NC to any signal above 500mV or leave it unconnected.
Can MP5034GJ-P operate with input voltages below 3.6V?
No - the absolute minimum operating input voltage is 3.6V per the Recommended Operating Conditions table. Below this, the ADJ block does not activate, and the device cannot regulate or detect charging modes. The UVLO rising threshold is 2.7–3.3V, but functional operation begins only above 3.6V.
How does MP5034GJ-P handle bus voltage transitions during QC3.0 mode changes?
It uses a controlled ADJ current ramp to adjust the upstream converter's output in 200mV increments, achieving smooth transitions with <60ms total glitch time and no undershoot/overshoot. The DP/DM signaling follows QC3.0-defined voltage states (e.g., DP=3.3V/DM=0.6V for 9V), verified in typical waveforms on page 6 of the datasheet.
Is MP5034GJ-P compatible with both buck and boost converters?
Yes - its ADJ pin interfaces with the feedback node of any DC/DC converter topology. The datasheet explicitly lists compatibility with buck, boost, and AC/DC converters. Design examples include MP2499M (buck) and MP3431 (boost), confirming interoperability across topologies.
What is the maximum continuous output current supported by MP5034GJ-P?
The MP5034GJ-P itself does not deliver output current - it controls external power stages. However, the datasheet design example (Table 2) specifies 3A output capability, and thermal metrics (θJA = 66°C/W) confirm stable operation at full load when mounted on a 2-layer 58mm×32mm PCB with 2oz copper.
Does MP5034GJ-P support USB Battery Charging Specification v1.2 (BC1.2)?
Yes - it fully supports BC1.2 DCP detection including shorted DP/DM (R<50Ω), 1.2V/1.2V mode (DP/DM = 1.1–1.3V), and Divider mode (DP/DM = 2.5–2.85V). These modes are implemented in hardware with dedicated comparators and require no software intervention.
What happens when a device is unplugged during QC3.0 operation?
The MP5034GJ-P automatically discharges the bus to 5V within 500ms (TV_UNPLUG parameter), triggered when DP falls below 0.6V. During this transition, the input-to-ground discharge path is activated, and the ADJ sink current ceases - returning the upstream converter to its default 5.1V output.
MP5034GJ-P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Package/Case:
- SOT-23-8 Thin, TSOT-23-8
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Type:
- USB Switch
- Number of Outputs:
- 1
- Ratio - Input:Output:
- 1:1
- Output Configuration:
- -
- Output Type:
- P-Channel
- Interface:
- -
- Voltage - Load:
- 14V (Max)
- Voltage - Supply (Vcc/Vdd):
- -
- Current - Output (Max):
- 3A
- Rds On (Typ):
- -
- Input Type:
- -
- Features:
- -
- Fault Protection:
- -
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-8
MP5034GJ-P FAQ
1.How can I place an order for MP5034GJ-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MP5034GJ-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 MP5034GJ-P reliable?
The price and inventory of MP5034GJ-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP5034GJ-P is usually 5 days.
3.What payment methods are accepted for MP5034GJ-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP5034GJ-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP5034GJ-P?
MP5034GJ-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP5034GJ-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 MP5034GJ-P?
For technical support, including MP5034GJ-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP5034GJ-P requirements.
6.How does Aetrix verify that MP5034GJ-P is sourced from the original manufacturer or authorized distributors?
All MP5034GJ-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 MP5034GJ-P meets industry standards.
7.What is the process for return or replacement of MP5034GJ-P?
All MP5034GJ-P units undergo pre-shipment inspection (PSI). If there is an issue with MP5034GJ-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 MP5034GJ-P part is unused and in its original packaging.
Return procedure for MP5034GJ-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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