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Monolithic Power Systems Inc. MP2731GQC-0000-P
- Part No.:
- MP2731GQC-0000-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- Power Management - Specialized
- Package:
- 26-PowerVFQFN
- Datasheet:
-
MP2731GQC-0000-P.pdf
- Description:
- 4.5A, SINGLE-CELL FAST CHARGER W
- Quantity:
- Payment:
- Shipping:
Inventory:186
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Product details
Overview
MP2731GQC-0000-P 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 - deployed in smartphones, tablets, and wireless cameras.
For engineers reviewing the MP2731GQC-0000-P datasheet, MP2731GQC-0000-P pinout, MP2731GQC-0000-P application, or MP2731GQC-0000-P equivalent, key selection considerations include its 1.35MHz buck topology, QFN-26 (3.5mm×3.5mm) package with 26-pin terminal mapping, NVDC instant-on capability with deeply discharged batteries, and configurable USB DP/DM fast-charge protocol detection.
Technical Context
The MP2731 implements a synchronous buck converter with integrated 25mΩ high-side and low-side MOSFETs, operating at 1.1–1.6MHz (typ. 1.35MHz) to minimize external component count while maintaining >92% efficiency at 3A charge current. Its NVDC architecture decouples system power from battery charge path, enabling instant-on operation even with zero or deeply discharged battery voltage.
USB OTG functionality is implemented via a boost converter controlled by I²C registers and enabled through the OTG pin; it delivers 4.8–5.5V (adjustable) with up to 3.0A output and 93% efficiency at 1.5A. Battery discharge path uses a 14mΩ BATFET supporting up to 8.5A continuous current, with DISC pin control for shipping mode (13µA battery leakage) and system reset.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.7V–16V - supports USB hosts, wall adapters, and fast-charge sources without external LDO or pre-regulator. |
| Charge Current | Up to 4.5A - programmable via I²C or ILIM pin; enables rapid charging of 2000–5000mAh portable device batteries. |
| Switching Frequency | 1.35MHz (typ.) - allows use of compact 1.0µH inductor and reduces EMI filtering requirements. |
| OTG Output | 4.8–5.5V adjustable, up to 3.0A - powers USB peripherals directly from battery during host-less operation. |
| BATFET RDS(on) | 14mΩ - minimizes discharge losses during system operation, sustaining >8.5A continuous current. |
| ADC Resolution | 8-bit - monitors VIN, VBAT, ISYS, ICHG, and NTC voltage with ±2 LSB accuracy for closed-loop thermal and charge control. |
| JEITA Compliance | Configurable hot/cold/warm thresholds via VNTC/NTC divider - enables safe charging across -40°C to +125°C ambient. |
| Shipping Mode Leakage | 13µA - extends shelf life of pre-charged devices by minimizing battery self-discharge during storage. |
Pinout & Package
MP2731GQC-0000-P is housed in a thermally enhanced QFN-26 package (3.5mm × 3.5mm, 0.5mm pitch) with exposed thermal pad. Pin numbering follows standard top-view layout; pins 5 and 6 are PGND, pin 17 is BATT, and pin 22 is DISC for shipping mode activation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 25 (DP, DM) | USB data pair interface | Detects USB source type (SDP/CDP/DCP) and enables fast-charge negotiation without host CPU involvement. |
| 2 (IN) | Main power input | Accepts 3.7–16V input; withstands up to 22V transient - eliminates need for external OVP circuitry. |
| 9 (STAT) | Open-drain status indicator | Signals charge state (trickle/pre-charge/CC/CV/complete/fault) via pulsed or static logic levels to MCU GPIO. |
| 10 (INT) | Open-drain interrupt output | Asserts on fault events (OVP, thermal shutdown, JEITA violation) - enables real-time host response without polling. |
| 11 (NTC), 12 (VNTC) | Thermal sensing interface | VNTC supplies bias voltage; NTC connects to thermistor network - implements full JEITA profile with 4-zone temperature control. |
| 18 (CE) | Hardware charge enable | Active-low pin that overrides I²C register setting - provides fail-safe hardware disable for safety-critical systems. |
| 22 (DISC) | Battery disconnect control | Pull-low for ≥8s enters shipping mode (BATFET off); short pulse triggers system reset - replaces discrete reset IC. |
| 23 (OTG) | Boost mode enable | Hardware override for OTG function - suspends boost when pulled low, independent of I²C command state. |
Key Features
| Feature | Design Value |
|---|---|
| NVDC Power Path Management | Enables instant-on system boot with no battery or <2.5V battery; ideal diode mode supplements SYS from BATT during input dropout. |
| I²C-Controlled Parameter Tuning | Registers configure charge voltage (3.4–4.67V), current (320–4520mA), termination threshold (120–720mA), and JEITA windows - no firmware recompile needed. |
| Integrated Reverse-Blocking MOSFET | 20mΩ RDS(on) between IN and PMID - prevents battery backfeed into input port during OTG or input removal. |
| Multi-Source Input Detection | DP/DM pins auto-identify USB SDP (500mA), CDP (1.5A), DCP (2.4A+), and proprietary fast-charge protocols - eliminates external ID resistors. |
| Comprehensive Safety Monitoring | Includes battery OVP (103.5% of VBAT_REG), thermal regulation (112°C), watchdog timer (160s), and input/system OVP - all with interrupt reporting. |
| Low-Power Shipping Mode | 13µA battery leakage with BATFET disabled - meets IPC-JEDEC J-STD-033 moisture sensitivity and long-term storage requirements. |
Applications
| Smartphones | Tablets |
|---|---|
|
Use Scenario: Dual-input power management for USB-C PD and legacy USB-A charging in slim form factor designs. IC Role / Device Role / Timing Role: Primary battery charge controller with NVDC path, managing simultaneous charge and system load under variable input conditions. Use Value: Enables full-system operation during charging, eliminates "battery-only" boot restriction, and reduces bill-of-materials by integrating MOSFETs, ADC, and USB detection. |
Use Scenario: High-current charging (≥3A) with thermal-aware JEITA compliance for large-capacity Li-polymer batteries (≥7000mAh). IC Role / Device Role / Timing Role: System-level power manager coordinating charge, discharge, OTG, and thermal protection across wide ambient temperature range (-40°C to +85°C). Use Value: Delivers 92% efficiency at 3A charge current and 93% at 1.5A OTG output - extends runtime and reduces thermal derating in sealed enclosures. |
| Wireless Cameras | Portable Medical Devices |
|
Use Scenario: Intermittent solar/USB-powered operation with deep discharge recovery and low-quiescent shipping mode. IC Role / Device Role / Timing Role: Autonomous charge supervisor initiating full CC/CV cycle upon input presence, including trickle-to-precharge transition at 1.9V VBATT. Use Value: Recovers from 1.9V battery voltage without external wake-up circuitry; 13µA shipping mode preserves battery for >12-month shelf life. |
Use Scenario: Safety-critical battery backup for handheld diagnostics with mandatory thermal monitoring and fault logging. IC Role / Device Role / Timing Role: Certified charge controller providing JEITA-compliant temperature zones, watchdog-monitored I²C, and interrupt-driven fault reporting to host MCU. Use Value: Meets IEC 62304 Class B software safety requirements via hardware-enforced thermal limits and non-software-dependent charge termination. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar battery charge management applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BQ25618RTWR | Lower max charge current (3A vs. 4.5A); no integrated USB DP/DM detection; requires external NTC biasing. | Lacks native USB type detection and OTG boost - needs companion IC for full USB-C PD support. | Select when cost-sensitive design accepts reduced current headroom and external USB ID logic. |
| IP2326 | Fixed 4.2V charge voltage only; no I²C configurability; no JEITA thermal zones; 2.5A max charge current. | Targeted at basic power banks - lacks NVDC, shipping mode, and system-level power path control. | Choose only for ultra-low-cost, non-thermal-critical consumer accessories with fixed battery chemistry. |
Compared with BQ25618RTWR and IP2326, MP2731GQC-0000-P uniquely integrates USB detection, 4.5A programmable charging, JEITA thermal profiling, and 13µA shipping mode - making it optimal for premium portable electronics requiring autonomous, safe, and flexible power management.
Availability
MP2731GQC-0000-P is available at Aetrix Electronics and suitable for smartphones, tablets, and wireless cameras requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for MP2731GQC-0000-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 power management ICs, with over two decades 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 devices needing autonomous charging, USB compatibility, and robust thermal safety - not general-purpose power conversion.
FAQ
What input voltage sources does MP2731GQC-0000-P support?
The MP2731GQC-0000-P supports 3.7V–16V input, including standard USB hosts (5V/500mA), USB-C PD (9V/12V/15V), and high-power wall adapters. Its 22V absolute maximum rating protects against transients, and integrated DP/DM pins auto-detect USB source type (SDP/CDP/DCP) and negotiate fast-charge current without host intervention.
How does NVDC power path management improve system reliability?
NVDC decouples the system rail (SYS) from the battery (BATT), allowing the device to power on instantly even with a dead or missing battery. During charging, SYS is powered directly from the input source while simultaneously charging the battery; if input is removed, SYS seamlessly transitions to battery power via ideal diode operation - eliminating brownouts and boot failures.
Can MP2731GQC-0000-P operate in USB On-The-Go mode without firmware control?
Yes. OTG mode can be enabled via I²C register write or hardware assertion of the OTG pin. Once active, it delivers regulated 4.8–5.5V (I²C-configurable) up to 3.0A from the battery to the input bus. The OTG pin also allows hardware suspension of boost operation - enabling deterministic power-off sequencing independent of software state.
What thermal protection mechanisms are built into MP2731GQC-0000-P?
The MP2731GQC-0000-P implements three-tier thermal protection: (1) JEITA-compliant NTC monitoring with four user-configurable temperature zones (cold/cool/warm/hot), (2) thermal regulation limiting junction temperature to 112°C, and (3) hard thermal shutdown at 150°C with 20°C hysteresis. All events trigger the INT pin for host notification.
Is shipping mode activation reversible without reprogramming?
Yes. Shipping mode is activated by holding the DISC pin low for ≥8 seconds, which disables the BATFET and reduces battery leakage to 13µA. To exit, apply normal input voltage (VIN > UVLO threshold) and issue an I²C command to clear the shipping mode bit - no factory reprogramming or soldering required.
Does MP2731GQC-0000-P require external current-sense resistors?
No. The MP2731GQC-0000-P integrates high-side and low-side MOSFETs with internal current sensing for both charge and discharge paths. Input current limit is set either by the ILIM pin resistor or I²C register - eliminating external sense resistors and associated PCB area and power loss.
How is battery voltage regulation accuracy maintained across temperature?
Battery voltage regulation accuracy is ±0.5% at 4.2V (per REG07h settings), with built-in compensation for temperature drift. The integrated 8-bit ADC monitors VBATT with ±2 LSB accuracy (20mV LSB), and the JEITA engine dynamically adjusts charge parameters based on real-time NTC readings - ensuring consistent full-charge cutoff across -40°C to +125°C.
MP2731GQC-0000-P 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-P FAQ
1.How can I place an order for MP2731GQC-0000-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MP2731GQC-0000-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 MP2731GQC-0000-P reliable?
The price and inventory of MP2731GQC-0000-P 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-P is usually 5 days.
3.What payment methods are accepted for MP2731GQC-0000-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2731GQC-0000-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP2731GQC-0000-P?
MP2731GQC-0000-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP2731GQC-0000-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 MP2731GQC-0000-P?
For technical support, including MP2731GQC-0000-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2731GQC-0000-P requirements.
6.How does Aetrix verify that MP2731GQC-0000-P is sourced from the original manufacturer or authorized distributors?
All MP2731GQC-0000-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 MP2731GQC-0000-P meets industry standards.
7.What is the process for return or replacement of MP2731GQC-0000-P?
All MP2731GQC-0000-P units undergo pre-shipment inspection (PSI). If there is an issue with MP2731GQC-0000-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 MP2731GQC-0000-P part is unused and in its original packaging.
Return procedure for MP2731GQC-0000-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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