Monolithic Power Systems Inc. MP2676EG-LF-P

Overview

MP2676EG-LF-P from Monolithic Power Systems is a Li-ion battery charger protection IC with integrated P-channel MOSFET and body-diode reverse protection, providing input over-voltage (6.0 V), input over-current (1.6 A), battery over-voltage (4.35 V), and thermal shutdown (140 °C) protection in portable PMIC-based charging systems. It replaces external blocking diodes and discrete P-MOSFETs in smartphones, digital cameras, and PDAs.

For engineers reviewing the MP2676EG-LF-P datasheet, MP2676EG-LF-P pinout, MP2676EG-LF-P application, or MP2676EG-LF-P equivalent, key selection considerations include its 1 µs OVP response time, 200 µs BOVP blanking, integrated charge-path MOSFET, QFN8 (2 mm × 2 mm) package, and compatibility with PMIC-controlled CC/CV charging architectures.

Technical Context

The MP2676EG-LF-P implements four independent protection channels-input OVP (6.0 V threshold, 1 µs propagation delay), BOVP (4.35 V, 200 µs blanking), OCP (1.6 A, 180 µs blanking), and OTP (140 °C trip)-each with dedicated comparators (CP1–CP3) and internal hysteresis. All protections feature programmable blanking to suppress false triggering during hot-insertion transients.

It integrates a P-channel MOSFET for reverse current blocking and supports external gate control via GATDRV to enable/disable charging under PMIC coordination. The device uses a power-on reset (2.65 V POR, 130 mV hysteresis) and soft-start logic to limit inrush current, with permanent latch-off after 16 repeated fault events unless power-cycled.

Key Specifications

Pinout & Package

MP2676EG-LF-P is housed in an 8-pin QFN package (2 mm × 2 mm, 0.5 mm pitch) with exposed thermal pad. Pin 1 is marked by a dot; the package supports reflow soldering per JEDEC MO-220 VCCD and provides θ_JA = 100 °C/W on a 4-layer PCB.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BQ24314RGER and RT9711CGQW, MP2676EG-LF-P uniquely delivers simultaneous OVP (1 µs), BOVP (200 µs blanking), OCP (180 µs blanking), and OTP in one QFN8 package with integrated P-MOSFET-enabling smaller, safer, and more reliable charge-path protection for next-gen portable devices.

Availability

MP2676EG-LF-P is available at Aetrix Electronics and suitable for smartphones, digital cameras, and PDAs requiring stable component supply, RoHS-compliant packaging, and long-lifecycle support for consumer electronics production programs.

Supply support for MP2676EG-LF-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 analog and power ICs, with design centers in the US, China, and Taiwan, and global manufacturing partnerships.

The MP2676 belongs to MPS's battery protection product line, engineered specifically for space-constrained, high-safety Li-ion charging applications in portable electronics where integration, speed, and reliability are non-negotiable.

FAQ

What is the function of the GATDRV pin?

GATDRV controls the gate of the integrated P-channel MOSFET. When pulled to GND, it turns the MOSFET fully ON to enable charging; when tied to CHRIN, it forces the MOSFET OFF to isolate the battery. This allows external PMICs to coordinate charge sequencing without additional drivers or logic.

Does MP2676EG-LF-P require external resistors for voltage thresholds?

No. All protection thresholds-including 6.0 V input OVP, 4.35 V battery OVP, and 1.6 A OCP-are internally trimmed and do not require external resistor dividers. Only the VBAT sense resistor (200 kΩ recommended) is needed to limit fault current and minimize OVP threshold error.

How does the MP2676 handle repeated fault conditions?

Each protection channel (OVP, BOVP, OCP, OTP) has an independent 4-bit counter. After 16 consecutive faults, the internal N-MOSFET latches OFF permanently. Recovery requires full power cycle-removing and reapplying ACIN-to reset all counters and restore operation.

Can MP2676EG-LF-P operate with a 3.7 V nominal Li-ion battery?

Yes. Its BOVP threshold is fixed at 4.35 V, matching standard single-cell Li-ion full-charge voltage. The device monitors VBAT through a high-value resistor (200 kΩ), enabling accurate detection without loading the battery, and supports discharge down to 2.5 V input (POR hysteresis ensures clean restart).

What is the purpose of the 10 ms power-on blanking time?

The 10 ms delay after POR (2.65 V) allows input transients from hot-plug events to settle before enabling the internal MOSFET. During this window, even if ACIN exceeds OVP, no action is taken-preventing nuisance shutdowns during normal adapter insertion.

Is thermal pad soldering required for MP2676EG-LF-P?

Yes. The exposed thermal pad on the QFN8 package must be soldered to a PCB copper pour for effective heat dissipation. Without proper thermal pad connection, junction temperature can exceed 150 °C under 1.5 A load, triggering premature thermal shutdown and degrading long-term reliability.