Monolithic Power Systems Inc. MP2724GRH-0000-P

Overview

MP2724GRH-0000-P from Monolithic Power Systems is a 2.2A, I²C-controlled buck battery charger IC with integrated NVDC power path management, USB Type-C sink mode detection, and 15mA termination current for wearable Li-ion/Li-polymer applications. It delivers ±0.5% battery voltage regulation, supports 3.9V–6.3V input, and integrates 30mΩ battery MOSFET and 26V input tolerance.

For engineers reviewing the MP2724GRH-0000-P datasheet, MP2724GRH-0000-P pinout, MP2724GRH-0000-P application, or MP2724GRH-0000-P equivalent, this device enables precise charge control in space-constrained USB-C portable devices requiring adaptive JEITA thermal management, ultra-low shipping-mode discharge (8.5μA), and dual-role (sink/OTG) USB power negotiation.

Technical Context

The MP2724 implements a narrow-voltage DC (NVDC) architecture with integrated high-side and low-side MOSFETs (25mΩ each) and a 30mΩ battery FET, enabling seamless system power sourcing from input or battery without voltage droop. Its USB Type-C CC1/CC2 pins perform sink port detection per USB PD spec, while D+/D− lines support BC1.2 and non-standard adapter identification.

I²C-configurable parameters include charge current (40mA–2.2A), input current limit (100mA–3.2A), switching frequency (750kHz–1.5MHz), and JEITA temperature windows (via NTC1/NTC2). The device embeds die temperature regulation (60°C–120°C), watchdog timer (40s), and lockable registers to prevent runtime parameter corruption.

Key Specifications

Pinout & Package

MP2724GRH-0000-P is housed in a thermally enhanced QFN-22 package (2.5mm × 3.5mm, 0.5mm pitch) with exposed thermal pad. Pin functions are validated per MPS MP2724 Rev. 1.0 datasheet (April 2024).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar single-cell Li-ion buck charger applications.

Compared with BQ25618RTWR and IP2326, MP2724GRH-0000-P uniquely combines USB-C sink detection, dual NTC JEITA, 2.2A charging, and 8.5μA shipping mode - making it the only solution meeting full USB-C PD-compliant wearable requirements in a single QFN-22 package.

Availability

MP2724GRH-0000-P is available at Aetrix Electronics and suitable for Bluetooth headphones, point-of-sale terminals, portable cameras, and Bluetooth speakers requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for MP2724GRH-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 design centers in the US, China, and Taiwan.

The MP2724 belongs to MPS's battery management IC product line, engineered specifically for USB-C–enabled portable electronics demanding integrated charging, system power control, and adaptive thermal safety in sub-4mm² footprints.

FAQ

What USB Type-C capabilities does MP2724GRH-0000-P support?

MP2724GRH-0000-P natively supports USB Type-C sink mode detection via CC1/CC2 pins, identifying UFP attachment, Rp value, and current capability (500mA/1.5A/3A). It also implements BC1.2 D+/D− detection and non-standard adapter identification without external components - eliminating need for discrete CC logic or BC1.2 ICs.

How does the NVDC power path improve system reliability?

The NVDC architecture uses an internal 30mΩ battery MOSFET to decouple SYS rail from BATT voltage. When input power is present, SYS is powered directly from IN; during discharge, SYS draws from BATT without voltage sag. This prevents system resets during battery depletion and enables "instant-on" operation even with deeply discharged cells.

Can MP2724GRH-0000-P be used for both charging and OTG power delivery?

Yes - MP2724GRH-0000-P operates in bidirectional mode: buck charging (IN→BATT) and boost source mode (BATT→PMID). Its configurable boost converter delivers up to 3A at 5.08–5.22V with OCP and OVP, supporting USB OTG peripherals like flash drives or keyboards without additional DC-DC stages.

What is the purpose of the STAT/IB pin's dual functionality?

STAT/IB serves two mutually exclusive modes: as open-drain STAT output (low = charging, high = complete/fault blink), or as analog IB current source (20μA/mA scaling) for real-time battery current telemetry. Mode selection is controlled via I²C register bit, enabling either status signaling or closed-loop battery health monitoring.

How does the JEITA profile implementation differ from basic thermal cutoff?

MP2724GRH-0000-P supports fully customizable JEITA zones (cold/cool/warm/hot) using two independent NTC inputs (NTC1 and PG/NTC2). Each zone defines distinct charge voltage/current limits - e.g., reduce ICC to 500mA and VBATT_REG to 4.1V between 45°C–60°C - rather than binary on/off cutoff, preserving usable capacity across wider temperature ranges.

Is MP2724GRH-0000-P compatible with USB PD 3.0 communication?

No - MP2724GRH-0000-P handles USB Type-C sink detection and BC1.2 negotiation only. It does not implement USB PD message exchange (SOP packets) or VCONN power. For full PD 3.0 compliance, pairing with a dedicated PD controller (e.g., CYPD3177) is required, with MP2724 managing the power stage under PD policy engine direction.

What PCB layout considerations are critical for thermal performance?

Thermal pad must be soldered to ≥4 thermal vias (0.3mm diameter) connecting to inner-layer copper pour. PMID and PGND traces require minimum 1.2mm width; BST capacitor must be placed within 2mm of BST/SW pins. NTC1/NTC2 traces should be routed away from heat sources and use Kelvin connections to minimize measurement error.