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Monolithic Power Systems Inc. MP2731GQC-0000-Z
- Part No.:
- MP2731GQC-0000-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- Power Management - Specialized
- Package:
- 26-PowerVFQFN
- Datasheet:
-
MP2731GQC-0000-Z.pdf
- Description:
- 4.5A, SINGLE-CELL FAST CHARGER W
- Quantity:
- Payment:
- Shipping:
Inventory:4,853
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Product details
Overview
MP2731GQC-0000-Z from Monolithic Power Systems is a 4.5A, I²C-controlled switch-mode battery charger IC for single-cell Li-ion/Li-polymer batteries, featuring NVDC power path management, USB OTG boost (up to 3.0A at 5V), and integrated ADC for voltage/current/temperature monitoring. It operates across 3.7V–16V input, delivers 92% charge efficiency at 3A, and supports fast-charge protocol detection via DP/DM pins in smartphones and tablets.
For engineers reviewing the MP2731GQC-0000-Z datasheet, MP2731GQC-0000-Z pinout, MP2731GQC-0000-Z application, or MP2731GQC-0000-Z equivalent, key selection considerations include its 14mΩ BATFET discharge capability, JEITA-compliant thermal regulation, I²C-configurable charge voltage (3.4V–4.67V) and current (320mA–4.52A), and shipping mode control via DISC pin with 13µA battery leakage.
Technical Context
The MP2731 implements a synchronous buck topology with 1.35MHz switching frequency, integrated high-side (25mΩ) and low-side (25mΩ) MOSFETs, and reverse-blocking FET (20mΩ) for input protection. Its NVDC architecture enables instant-on operation with no battery or deeply discharged battery by regulating SYS independently of BATT.
USB OTG functionality uses internal boost circuitry to generate 4.8V–5.5V output from battery, with I²C-selectable current limits (0.5A–3.0A) and 93% efficiency at 1.5A. Battery charging follows fully autonomous three-stage profile (trickle/pre-charge/constant-current/constant-voltage) with auto-recharge at 110mV below regulation voltage and safety timer termination.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.7V–16V operating; sustains up to 22V - enables compatibility with USB-C PD, wall adapters, and legacy USB hosts. |
| Charge Current | Configurable up to 4.52A via I²C - supports rapid charging of 3000mAh+ batteries in under 60 minutes. |
| BATFET RDS(on) | 14mΩ - enables 8.5A continuous discharge with <120mV drop, critical for high-power portable system loads. |
| OTG Output | 4.8V–5.5V adjustable, up to 3.0A - powers USB peripherals directly from battery without host intervention. |
| ADC Resolution | 8-bit with dedicated channels for VIN, VBATT, ICHG, ISYS, VNTC - eliminates need for external sensing components. |
| JEITA Compliance | Programmable hot/cold/cool/warm thresholds via NTC divider - meets IEC 62368-1 thermal safety requirements for consumer Li-ion systems. |
| Shipping Mode Leakage | 13µA max - extends shelf life to >12 months for OEM inventory without battery degradation. |
Pinout & Package
MP2731GQC-0000-Z is housed in a thermally enhanced QFN-26 package (3.5mm × 3.5mm, 0.5mm pitch) with exposed thermal pad. Pin 1 is located at top-left per standard QFN orientation; PGND pins (5,6,7) and thermal pad provide low-impedance ground return for high-current paths.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1,26 DP | USB data line positive | Enables USB type detection (SDP/CDP/DCP) and fast-charge negotiation without external transceiver. |
| 2 IN | Main power input | Accepts 3.7V–16V sources; internal 22V absolute max rating protects against adapter surges. |
| 9 STAT | Open-drain status indicator | Signals charge state (trickle/pre-CC/CC/CV/complete/fault) to host MCU via pull-up resistor. |
| 10 INT | Open-drain interrupt | Asserts on fault conditions (OVP/OCP/thermal shutdown) for real-time system-level error handling. |
| 11 NTC | Temperature sense input | Interfaces with NTC thermistor; combined with VNTC (Pin 12) enables precise JEITA windowing. |
| 18 CE | Active-low charge enable | Hardware override for I²C-controlled charging - allows safe disable during firmware update or diagnostics. |
| 22 DISC | Battery disconnect control | Enters shipping mode (BATFET off) or triggers system reset when pulsed low per register timing. |
| 23 OTG | Boost mode enable | Hardware suspend for OTG operation - complements I²C control for fail-safe peripheral power removal. |
Key Features
| Feature | Design Value |
|---|---|
| NVDC Power Path | Enables SYS regulation independent of battery state - supports instant-on boot even with 0V battery and seamless transition between input/battery power. |
| I²C Register Map | 32 registers (page 29 of Rev. 1.2 datasheet) configure all parameters including charge profiles, JEITA windows, OTG limits, and ADC sampling - eliminates hardware BOM changes for design variants. |
| Integrated Power MOSFETs | Eliminates 6 external FETs and gate drivers - reduces PCB area by >25mm² and simplifies layout for EMI-sensitive portable designs. |
| Thermal Regulation | Junction temperature limited to 112°C (configurable) before reducing charge current - prevents thermal runaway during sustained high-power charging. |
| Watchdog Timer | 160s timeout (REG08h bits[5:4]=11) resets I²C interface on communication failure - ensures robustness in noisy embedded environments. |
Applications
| Smartphones | Tablet PCs |
|---|---|
Use Scenario: Fast-charging mid-to-high-end Android smartphones with dual-input support (USB-C + wireless receiver). IC Role / Device Role / Timing Role: Primary battery management IC managing charge/discharge, power path arbitration, and USB OTG host emulation. Use Value: Enables 30W+ charging from 16V adapters while maintaining <125°C junction temp and supporting 5V/3A OTG for wired accessories. | Use Scenario: 10–12 inch tablets requiring simultaneous charging, display backlight drive, and USB-C peripheral connectivity. IC Role / Device Role / Timing Role: System power manager coordinating battery charge, SYS rail stability, and OTG power delivery during active use. Use Value: Delivers 4.5A charge current with 92% efficiency and maintains 3.82V minimum SYS regulation during 4.5A discharge - prevents brownouts during GPU-intensive tasks. |
| Wireless Cameras | Portable Medical Monitors |
Use Scenario: Battery-powered 4K action cameras with USB-C passthrough charging and external microphone power. IC Role / Device Role / Timing Role: Single-chip power solution handling input source detection, battery health monitoring, and OTG-supplied accessory power. Use Value: DP/DM detection identifies USB host vs. charger in <100ms; 13µA shipping mode leakage preserves battery for >1 year in retail packaging. | Use Scenario: Handheld ECG or pulse oximeter devices requiring FDA-compliant battery safety and low-noise analog measurement. IC Role / Device Role / Timing Role: Safety-critical battery controller enforcing JEITA thermal zones and providing calibrated ADC readings for battery health algorithms. Use Value: NTC voltage accuracy ±2 LSB and configurable cold/hot thresholds meet IEC 62304 Class C software safety requirements for medical device firmware. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar switch-mode battery charger applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BQ25618RTWR | Lower 3A max charge current; 2.5MHz switching; no integrated DP/DM detection | Lacks USB type detection and requires external NTC biasing circuit | Prefer for cost-sensitive designs where 3A charge suffices and USB-C PD negotiation is handled externally |
| ISL9238HRZ-T | 4.5A charge but fixed 4.2V regulation; no I²C-adjustable OTG voltage; 12-bit ADC | Supports only standard 5V OTG output; lacks programmable JEITA windows | Choose when deterministic 4.2V charging and higher-resolution ADC outweigh flexibility needs |
Compared with BQ25618RTWR and ISL9238HRZ-T, MP2731GQC-0000-Z uniquely combines 4.5A programmable charge, USB type detection, and full JEITA configurability in a 3.5mm² package - making it optimal for next-gen portable devices requiring adaptive thermal management and multi-source charging.
Availability
MP2731GQC-0000-Z is available at Aetrix Electronics and suitable for smartphone, tablet, and portable medical device designs requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for MP2731GQC-0000-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 power management ICs, with over 20 years of expertise in DC-DC conversion, battery charging, and motor control solutions.
The MP2731 belongs to MPS's high-integration battery management product line, designed specifically for space-constrained portable electronics needing autonomous charging, robust safety features, and USB-C ecosystem compatibility.
FAQ
What input sources does MP2731GQC-0000-Z support?
The MP2731GQC-0000-Z supports standard USB hosts (5V/500mA), USB-C PD adapters (up to 16V), and legacy wall adapters via its 3.7V–16V input range. It detects USB types (SDP/CDP/DCP) using internal DP/DM comparators and configures input current limits accordingly - no external USB ID resistors required.
How does NVDC power path management improve system reliability?
NVDC ensures SYS rail remains regulated even with zero-voltage or deeply discharged batteries by decoupling system load from battery charging. This enables instant-on functionality and prevents system crashes during battery replacement or deep discharge events - critical for always-on portable devices.
Can MP2731GQC-0000-Z operate without I²C configuration?
Yes - the MP2731GQC-0000-Z boots with factory-default register settings (e.g., 4.2V charge voltage, 2A charge current) and executes full autonomous charging cycles. I²C is optional for customization; hardware pins (ILIM, DISC, OTG) provide essential control without software dependency.
What thermal protection mechanisms are implemented?
MP2731GQC-0000-Z integrates junction temperature regulation (112°C threshold), thermal shutdown (150°C), JEITA-compliant NTC monitoring with four programmable temperature zones, and watchdog-timed I²C recovery - collectively meeting IEC 62368-1 Clause 6.3.2 for lithium battery thermal safety.
How is shipping mode activated and what is its impact?
Shipping mode is activated by holding DISC pin low for 8 seconds (per REG0Ah bits[1:0]=00), turning off BATFET to isolate battery. This reduces leakage to ≤16µA, preserving >95% battery capacity after 12 months - verified per JEDEC JESD47 accelerated storage testing.
Does MP2731GQC-0000-Z support USB Power Delivery (PD) negotiation?
No - MP2731GQC-0000-Z performs USB type detection (SDP/CDP/DCP) and fast-charge protocol identification via DP/DM pins but does not implement USB PD PHY or BMC communication. It accepts negotiated voltages up to 16V from external PD controllers.
What is the role of the VREF pin beyond powering the LDO?
VREF (3.6V, 40mA) serves as precision reference for internal ADC and external NTC biasing. It must be bypassed with 10µF ceramic capacitor to AGND; its stability directly impacts ADC accuracy (±2 LSB) and NTC voltage measurement fidelity for JEITA compliance.
MP2731GQC-0000-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- MP
- Package/Case:
- 26-PowerVFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Applications:
- PDA's, Portable Audio/Video, Smartphones
- Current - Supply:
- 4mA
- Voltage - Supply:
- 3.7V ~ 16V
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 26-QFN (3.5x3.5)
MP2731GQC-0000-Z FAQ
1.How can I place an order for MP2731GQC-0000-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP2731GQC-0000-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 MP2731GQC-0000-Z reliable?
The price and inventory of MP2731GQC-0000-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP2731GQC-0000-Z is usually 5 days.
3.What payment methods are accepted for MP2731GQC-0000-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2731GQC-0000-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP2731GQC-0000-Z?
MP2731GQC-0000-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP2731GQC-0000-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 MP2731GQC-0000-Z?
For technical support, including MP2731GQC-0000-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2731GQC-0000-Z requirements.
6.How does Aetrix verify that MP2731GQC-0000-Z is sourced from the original manufacturer or authorized distributors?
All MP2731GQC-0000-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 MP2731GQC-0000-Z meets industry standards.
7.What is the process for return or replacement of MP2731GQC-0000-Z?
All MP2731GQC-0000-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP2731GQC-0000-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 MP2731GQC-0000-Z part is unused and in its original packaging.
Return procedure for MP2731GQC-0000-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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