Monolithic Power Systems Inc. MP2650GV-0300-P

Overview

MP2650GV-0300-P from Monolithic Power Systems is an I²C-controlled buck/boost battery charger IC optimized for 3-cell Li-ion/Li-polymer battery packs (10.8V–12.6V nominal), delivering up to 5A charge current and supporting NVDC power path management, USB OTG (5V/3A), and IMVP8-compliant system power monitoring via PSYS, IAM, and IBM analog outputs.

For engineers reviewing the MP2650GV-0300-P datasheet, MP2650GV-0300-P pinout, MP2650GV-0300-P application, or MP2650GV-0300-P equivalent, key selection considerations include its 4V–21V input range, configurable 600–1250kHz switching frequency, integrated dual-phase MOSFETs (Q1–Q5), thermal regulation at 120°C, and factory-configured 3-cell charge voltage (12.6V) with JEITA-compliant NTC temperature profiling.

Technical Context

The MP2650 operates in adaptive buck or boost charging mode based on input voltage and cell count-enabling efficient charging from low-voltage USB sources (e.g., 5V) or high-voltage adapters (up to 21V) while maintaining stable system bus voltage via NVDC control. Its dual-switching architecture integrates four power MOSFETs (Q1–Q4) and a system FET (Q5) to manage charge/discharge paths, battery isolation, and OTG reverse power delivery.

Real-time parameter control is implemented through a standard I²C interface (400kHz), enabling dynamic configuration of input current limit (up to 5A), charge voltage (12.6V default for 3S), safety timer (12hr max), and OTG output (5V ±2% with 1.43A/2.93A selectable current limits). Fault reporting includes register-mapped status for OVP, thermal shutdown, battery OVP/UVP, and short-circuit events.

Key Specifications

Pinout & Package

MP2650GV-0300-P is housed in a thermally enhanced QFN-30 package (4mm × 5mm, 0.5mm pitch) with exposed thermal pad. Pin functions are validated per MPS MP2650 Rev. 1.0 datasheet (p.5–6).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar buck/boost battery charger applications.

Compared with BQ25792RTWR and ISL9238HRZ-T, MP2650GV-0300-P uniquely combines factory-tuned 3S support, integrated OTG FET, NVDC path autonomy, and full JEITA NTC programmability in a single QFN-30 package-reducing design complexity for portable 3-cell applications requiring USB host capability and thermal robustness.

Availability

MP2650GV-0300-P is available at Aetrix Electronics and suitable for tablet power management, notebook battery subsystems, portable gimbal power hubs, and Bluetooth speaker charging modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for MP2650GV-0300-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 expertise in DC/DC conversion, battery charging, and motor control solutions.

The MP2650 product line targets portable computing and consumer electronics requiring highly integrated, I²C-configurable battery chargers with NVDC power path management and USB OTG functionality for multi-cell Li-ion packs.

FAQ

What does the "-0300" suffix indicate in MP2650GV-0300-P?

The "-0300" suffix denotes factory-programmed configuration for 3-cell (3S) battery packs, including default charge voltage regulation at 12.6V (±65mV), JEITA temperature thresholds optimized for 3S NTC networks, and pre-set I²C register values for 3S-specific charge profiles and safety timers.

Does MP2650GV-0300-P support USB Power Delivery (USB-PD) input negotiation?

No-MP2650GV-0300-P does not include a USB-PD PHY or BMC decoder. It accepts regulated DC input (4–21V) from external PD controllers or fixed-voltage sources; USB-PD negotiation must be handled by a separate PD controller IC upstream of the IN pin.

How is thermal regulation implemented, and what is the difference between TJ_REG and TJ_SHDN?

Thermal regulation activates at 120°C (TJ_REG) to reduce charge current and maintain safe junction temperature; thermal shutdown triggers at 150°C (TJ_SHDN) with 20°C hysteresis to force complete device disable until cooling occurs-both are hardware-monitored and independent of I²C control.

Can the MP2650GV-0300-P operate in battery-only mode with no input voltage applied?

Yes-it supports battery-only mode with VIN < 3.68V UVLO threshold. In this state, the system rail (SYS) remains powered via the battery FET (Q5), and PROCHOT, PSYS, and ADC functions remain active if enabled via REG0Bh bits[1:0] = 11, drawing only 2.8mA typical quiescent current.

What is the purpose of the PSYS, IAM, and IBM pins, and how are they calibrated?

PSYS outputs 100µA per watt of system power (256-step resolution); IAM provides 250mV/A input current sensing with 100mV offset; IBM delivers 125mV/A (charge) or 62.5mV/A (discharge) battery current sensing. All three are factory-calibrated and require no external compensation for ±2% accuracy across temperature.

Is the MP2650GV-0300-P pin-compatible with other MP2650 variants like -0200 or -0400?

Yes-all MP2650GV-x*xx variants share identical QFN-30 pinout and electrical characteristics; only factory-configured I²C registers differ (e.g., VBATT_REG, JEITA thresholds, safety timers), allowing drop-in replacement where application requirements align with the variant's cell count.

What external components are mandatory for basic operation?

Mandatory components include: five 22µF ceramic capacitors (SYS: 5×22µF, BATT: 2×22µF), two 470nF bootstrap capacitors (BST1–SW1, BST2–SW2), one 100nF + 100Ω RC filter on VMAX_BST, one 10µF VCC capacitor, and a 10mΩ current-sense resistor (RS1) between IN and IAP/IAN.