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Monolithic Power Systems Inc. MP2731GQC-0001-Z
- Part No.:
- MP2731GQC-0001-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- Battery Chargers
- Package:
- 26-PowerVFQFN
- Datasheet:
-
MP2731GQC-0001-Z.pdf
- Description:
- 4.5A I2C CONTROLLED SW CHARGER W
- Quantity:
- Payment:
- Shipping:
Inventory:4,965
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Product details
Overview
MP2731GQC-0001-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 automatic charging cycles with JEITA-compliant thermal regulation in smartphones and tablets.
For engineers reviewing the MP2731GQC-0001-Z datasheet, MP2731GQC-0001-Z pinout, MP2731GQC-0001-Z application, or MP2731GQC-0001-Z equivalent, key selection considerations include its QFN-26 (3.5mm×3.5mm) package, 1.35MHz buck switching frequency, 14mΩ BATFET, 13µA shipping-mode leakage, and dual-role DP/DM pins for USB type detection and fast-charge protocol negotiation.
Technical Context
The MP2731 implements a synchronous buck topology with monolithically integrated high-side (25mΩ) and low-side (25mΩ) MOSFETs, enabling up to 4.5A charge current and 8.5A continuous battery discharge. Its NVDC architecture decouples system power from battery state, allowing instant-on operation even with no or deeply discharged battery via ideal diode mode.
USB OTG functionality is implemented as a regulated boost converter with adjustable output (4.8V–5.5V) and programmable current limit (0.5A–3.0A), while the I²C interface (400kHz) provides full control over charge profiles, input current limits, JEITA thresholds, and status reporting via 8-bit ADC readings for VIN, VBATT, ICHG, ISYS, VNTC, and VSYS.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.7V to 16V - Supports USB hosts, wall adapters, and PD sources without external LDO or pre-regulator. |
| Max Charge Current | 4.5A - Configurable via I²C register; enables <1.5-hour full charge for 6,000mAh battery packs. |
| Switching Frequency | 1.35MHz - Allows use of compact 1.0µH inductor and reduces EMI filtering requirements. |
| BATFET RDS(on) | 14mΩ - Minimizes conduction loss during battery discharge, supporting 8.5A continuous load. |
| Shipping Mode Leakage | 13µA - Enables >1-year shelf life for portable devices shipped with charged battery. |
| I²C Interface Speed | 400kHz - Enables real-time telemetry updates and dynamic charge parameter adjustment during runtime. |
| ADC Resolution | 8-bit - Provides quantized monitoring of six critical analog signals with ≤2 LSB accuracy. |
Pinout & Package
MP2731GQC-0001-Z is housed in a thermally enhanced QFN-26 package (3.5mm × 3.5mm, 0.5mm pitch) with exposed thermal pad. Pin 1 is top-left per standard QFN orientation; PGND pins (5,6,7) and AGND (15) are assigned to minimize ground bounce and ADC noise coupling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 26 DP | USB data line positive | Configurable D+ pull-up for USB BC1.2/CDP/DCP detection and fast-charge protocol negotiation. |
| 2 IN | Main power input | Accepts 3.7V–16V; internal 20mΩ reverse-blocking MOSFET prevents battery backfeed into input. |
| 11 NTC | Temperature sense input | Connects to NTC thermistor; enables JEITA-compliant charge suspension outside 0°C–45°C hot/cold windows. |
| 19,20 SCL/SDA | I²C serial interface | Supports multi-device addressing; open-drain with 1.8V logic compatibility and watchdog timer supervision. |
| 22 DISC | Battery disconnect control | Hardware-triggered entry to shipping mode (BATFET off) or system reset (SYS rail discharge). |
| 23 OTG | Boost enable control | Active-low hardware override to suspend OTG operation during fault or thermal events. |
Key Features
| Feature | Design Value |
|---|---|
| NVDC power path with ideal diode mode | Enables system operation from battery only (no input) or input-only (no battery); 20mV forward drop at 10mA. |
| Integrated 8-channel ADC | Monitors VIN, VBATT, ICHG, ISYS, VSYS, VNTC, ILIM, and STAT with shared 8-bit resolution and ≤2 LSB error. |
| Programmable USB OTG output | Adjustable 4.8V–5.5V output with 0.5A/1.5A/2.25A/3.0A current limits; 93% efficiency at 1.5A load. |
| JEITA temperature regulation | Four-zone NTC-based thermal control (cold/cool/warm/hot) with configurable thresholds and hysteresis. |
| Auto-recharge with deglitch | Re-initiates charge when VBATT drops ≥110mV below regulation voltage; 200ms deglitch prevents false triggers. |
Applications
| Smartphones | Tablet PCs |
|---|---|
|
Use Scenario: Main battery charging and system power management in slim-profile handsets with USB-C input and dual-role OTG capability. IC Role / Device Role / Timing Role: Primary charge controller managing CC/CV stages, NVDC path arbitration, and USB OTG boost conversion. Use Value: 92% charge efficiency at 3A reduces thermal stress on PCB; 13µA shipping-mode leakage extends shelf life beyond 12 months. |
Use Scenario: High-current charging for large-capacity Li-polymer batteries (≥8,000mAh) in 10-inch tablets with USB PD and legacy adapter support. IC Role / Device Role / Timing Role: Integrated power manager handling input source detection, adaptive charge current scaling, and system voltage regulation. Use Value: 4.5A max charge current cuts full-charge time to <100 minutes; 1.35MHz switching allows compact 1.0µH inductor placement. |
| Wireless Cameras | Portable Medical Devices |
|
Use Scenario: Battery-powered IP cameras requiring reliable charging from PoE injectors (5V/9V/12V) and field-deployable OTG power delivery. IC Role / Device Role / Timing Role: Dual-function PMIC providing regulated SYS rail and bidirectional power path between battery and USB bus. Use Value: Wide 3.7V–16V input range eliminates need for external buck pre-regulator; DP/DM detection auto-selects optimal input current limit. |
Use Scenario: Portable diagnostic tools with strict safety compliance, requiring battery temperature monitoring and fail-safe charge termination. IC Role / Device Role / Timing Role: Safety-critical charge supervisor enforcing JEITA thermal zones, 200ms recharge deglitch, and hardware-based shipping mode. Use Value: Integrated NTC comparator with 1.3% hysteresis ensures precise cold/hot threshold enforcement; BATFET disable guarantees zero battery drain in storage. |
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; no integrated DP/DM detection; uses external NTC bias resistor. | Lacks native USB type detection and requires external components for fast-charge negotiation. | Preferred where cost sensitivity outweighs USB protocol flexibility and thermal integration. |
| ISL9238HRZ-T | Higher 5A charge current but fixed 5V OTG output; no I²C-configurable JEITA thresholds. | Supports wider input (4.5V–24V) but lacks fine-grained thermal zone programming and shipping-mode control pin. | Selected for industrial applications needing higher input voltage tolerance and simpler thermal policy. |
Compared with BQ25618RTWR and ISL9238HRZ-T, MP2731GQC-0001-Z uniquely integrates USB type detection, programmable JEITA windows, and dedicated DISC pin for hardware shipping mode-reducing BOM count by 3–5 passive components and enabling faster design iteration for consumer portable devices.
Availability
MP2731GQC-0001-Z is available at Aetrix Electronics and suitable for smartphone power management, tablet battery charging, and wireless camera OTG power delivery requiring stable component supply across production ramps and long-life programs.
Supply support for MP2731GQC-0001-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 for consumer, industrial, and automotive markets since 1997.
The MP2731 belongs to MPS's high-integration battery management product line, designed specifically for space-constrained portable devices requiring autonomous charging, robust thermal safety, and seamless USB-C/OTG interoperability.
FAQ
What input sources does MP2731GQC-0001-Z support natively?
The MP2731GQC-0001-Z supports standard USB host ports (5V), USB CDP/DCP chargers, and high-voltage wall adapters up to 16V via its 3.7V–16V input range. Its DP/DM pins perform automatic USB type detection (BC1.2, CDP, DCP) and negotiate input current limits without host software intervention.
How does NVDC power path management improve system reliability?
NVDC ensures the system (SYS rail) remains powered regardless of battery state: it draws from input when available, seamlessly switches to battery during input removal, and enables instant-on operation even with 0V battery. The ideal diode mode reduces supplemental discharge losses to 20mV at 10mA, extending runtime.
Can MP2731GQC-0001-Z operate without I²C configuration?
Yes. The device boots with factory-default register settings (e.g., 4.2V charge voltage, 2A charge current, 5V OTG output) and executes full CC/CV charging autonomously. I²C is optional for advanced features like JEITA tuning, dynamic current limiting, or status telemetry-not required for basic operation.
What thermal protection mechanisms are implemented?
MP2731GQC-0001-Z includes three-tier thermal protection: (1) JEITA-compliant NTC monitoring with four user-programmable temperature zones, (2) 112°C thermal regulation that throttles charge current, and (3) 150°C hardware thermal shutdown with 20°C hysteresis-each independently verified and latched until reset.
How is shipping mode activated and verified?
Shipping mode is activated by holding the DISC pin low for 8 seconds (configurable via REG0Ah), which disables the BATFET and reduces battery leakage to 13µA. Verification is confirmed by measuring IBATT_SP ≤16µA at VBATT=4.2V and VIN < VIN_UVLO (3.2V), with STAT pin indicating "shipping" state via I²C register read.
Does MP2731GQC-0001-Z support USB Power Delivery (USB-PD)?
No. MP2731GQC-0001-Z supports USB BC1.2, CDP, and DCP detection via DP/DM pins but lacks native USB-PD PHY or BMC decoding. For USB-PD input, an external PD controller (e.g., MPQ4257) must negotiate voltage before routing to MP2731's IN pin.
What is the role of the VNTC pin?
VNTC is a precision 1.2V reference output used to bias the NTC thermistor divider network. It enables accurate temperature measurement across the full -40°C to +125°C range with ±1.5% hysteresis on hot/warm thresholds, directly feeding the JEITA comparator block without external components.
MP2731GQC-0001-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 26-PowerVFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Battery Chemistry:
- Lithium Ion/Polymer
- Number of Cells:
- 1
- Current - Charging:
- Constant - Programmable
- Programmable Features:
- Current, Timer, Voltage
- Fault Protection:
- Over Current, Over Temperature, Over Voltage
- Charge Current - Max:
- 4.5A
- Battery Pack Voltage:
- 4.67V (Max)
- Voltage - Supply (Max):
- 16V
- Interface:
- I2C, USB
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 26-QFN (3.5x3.5)
MP2731GQC-0001-Z FAQ
1.How can I place an order for MP2731GQC-0001-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP2731GQC-0001-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-0001-Z reliable?
The price and inventory of MP2731GQC-0001-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-0001-Z is usually 5 days.
3.What payment methods are accepted for MP2731GQC-0001-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2731GQC-0001-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP2731GQC-0001-Z?
MP2731GQC-0001-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP2731GQC-0001-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-0001-Z?
For technical support, including MP2731GQC-0001-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2731GQC-0001-Z requirements.
6.How does Aetrix verify that MP2731GQC-0001-Z is sourced from the original manufacturer or authorized distributors?
All MP2731GQC-0001-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-0001-Z meets industry standards.
7.What is the process for return or replacement of MP2731GQC-0001-Z?
All MP2731GQC-0001-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP2731GQC-0001-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-0001-Z part is unused and in its original packaging.
Return procedure for MP2731GQC-0001-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MP2731GQC-0001-Z Tags
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BQ21040DBVR
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