Monolithic Power Systems Inc. MP2700GC-0000-Z

Overview

MP2700GC-0000-Z from Monolithic Power Systems is a 1-cell to 2-cell Li-ion/LiFePO₄ linear battery charger IC with JEITA-compliant temperature monitoring, 26V input tolerance, 1A configurable fast charge current (via ISET), and integrated thermal regulation. It operates across -40°C to +125°C junction temperature and supports automatic recharge, safety timer, and OVP/OCP protection in wearable and portable medical devices.

For engineers reviewing the MP2700GC-0000-Z datasheet, MP2700GC-0000-Z pinout, MP2700GC-0000-Z application, or MP2700GC-0000-Z equivalent, this page delivers verified functional context, WLCSP-8 package layout, JEITA temperature threshold values, OTP-configurable VIN_LIM and VBATT_REG settings, and real-world charge-phase timing behavior - all critical for low-power portable system integration.

Technical Context

The MP2700 implements a four-phase linear charging algorithm (trickle → pre-charge → constant-current → constant-voltage) with dual-loop control: battery voltage regulation (0.5% accuracy) and input current limiting via USBM pin (high/low/float). Its internal temperature regulation loop activates at TJ = 120°C and triggers shutdown at 160°C.

JEITA compliance is enforced through NTC-based cold (0°C), cool (10°C), warm (45°C), and hot (60°C) thresholds with hysteresis, while OTP memory configures cell count (1/2), full-cell voltage (2.4–4.5V/cell), and minimum input voltage limit (4.375/4.5/4.75V/cell).

Key Specifications

Pinout & Package

MP2700GC-0000-Z is housed in a WLCSP-8 package (1.05mm × 1.6mm, 0.4mm pitch), optimized for ultra-compact portable designs requiring minimal PCB footprint and thermal mass.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar linear battery charger applications.

Compared with BQ24075RGTR and MAX1555, MP2700GC-0000-Z uniquely integrates JEITA-compliant NTC monitoring, OTP-configurable cell count/voltage/VIN_LIM, and WLCSP-8 packaging - enabling safe, compact, and flexible charging for next-gen wearables where thermal safety and footprint are non-negotiable.

Availability

MP2700GC-0000-Z is available at Aetrix Electronics and suitable for wireless earbuds, fitness trackers, and portable medical sensors requiring stable component supply, JEITA-compliant thermal management, and ultra-compact WLCSP packaging.

Supply support for MP2700GC-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-efficiency power management ICs, with design centers in the US, China, and Taiwan.

The MP2700 belongs to MPS's linear battery charger product line, engineered specifically for space-constrained, thermally sensitive portable electronics requiring JEITA compliance, multi-chemistry support, and OTP configurability without external microcontroller intervention.

FAQ

What battery chemistries does MP2700GC-0000-Z support?

MP2700GC-0000-Z supports 1-cell to 2-cell Li-ion, Li-polymer, and LiFePO₄ batteries, plus 2-cell to 6-cell NiMH batteries. Cell count and full-cell voltage (2.4V–4.5V/cell) are configured via one-time programmable (OTP) memory, enabling hardware-defined chemistry selection without firmware changes.

How is the charge current (ICC) set and limited?

ICC is set by a resistor between ISET and GND (20mA–1A range), but actual charge current is capped by the lower of ICC or the USBM-configured input limit: 500mA (USBM high), ISET value (USBM low), or 100mA (USBM float). This dual-limit architecture prevents input source overload while maintaining precise battery current control.

Does MP2700GC-0000-Z require external components for JEITA compliance?

No external components beyond the NTC thermistor are required. The MP2700 integrates all JEITA threshold comparators, bias current sources (50μA typ), and hysteresis logic. Cold (0°C), cool (10°C), warm (45°C), and hot (60°C) thresholds are factory-trimmed and can be fine-tuned via OTP - eliminating calibration resistors or microcontroller polling.

What happens during ISET pin short-circuit?

When ISET is shorted to GND, the MP2700 limits fast charge current to 1.25A and latches off after a 1ms deglitch period. Recovery requires either re-applying input power or pulling the NTC pin to GND to reset the fault state - ensuring robustness against accidental shorts in production or field use.

Can MP2700GC-0000-Z operate without an NTC thermistor?

Yes: pulling NTC to GND disables charging entirely; floating NTC enables charging without temperature monitoring (but forfeits JEITA protection). For safety-critical applications, NTC connection is mandatory - the device will not initiate charge unless VNTC is within 75–105mV (enable threshold) or actively monitored across the full JEITA range.

What is the function of the CHG pin during different charge states?

The CHG pin is open-drain: pulled low during active charging (trickle, pre-charge, CC, or CV phase); high-impedance at termination, automatic recharge wait, or fault conditions (OVP, thermal shutdown, timer expiry). No external pull-up is required for basic status indication, though one may be added for LED drive or MCU interrupt signaling.

How does the VIN_LIM feature protect the input source?

VIN_LIM dynamically reduces ICC when input voltage drops to a user-configured threshold (4.375/4.5/4.75V/cell), preventing adapter brownout or USB port current violation. Unlike fixed current limits, this loop responds to real-time input sag - preserving system stability during peak load transients without disabling charging entirely.