Monolithic Power Systems Inc. MP2696AGQ-0000-P

Overview

MP2696AGQ-0000-P from Monolithic Power Systems is an I²C-controlled, single-cell Li-ion/Li-polymer switching charger with integrated power-path management and 3.6A boost converter. It delivers programmable 500mA–3.6A charge current, ±0.5% accurate 3.6V–4.45V charge voltage regulation, and supports input voltage tracking via minimum-input-voltage loop - enabling high-efficiency charging in portable power banks and sub-battery systems.

For engineers reviewing the MP2696AGQ-0000-P datasheet, MP2696AGQ-0000-P pinout, MP2696AGQ-0000-P application, or MP2696AGQ-0000-P equivalent, this device offers real-time I²C register access to charge/boost parameters, JEITA-compliant temperature monitoring, SYS plug-in detection, and dual-mode operation (charge + boost) with ultra-low 25μA battery discharge in idle mode.

Technical Context

The MP2696A integrates a synchronous buck charger, bidirectional power-path FETs (Q1/Q2), and a synchronous boost converter in a single QFN-21 package. Its control architecture uses analog current sensing (via CSP/BATT) and digital I²C configuration to manage pre-charge, constant-current, and constant-voltage phases while enforcing input current limit (±10% accuracy) and input minimum voltage regulation loops.

It implements full JEITA profile support with four programmable temperature thresholds (VCOLD/VCOOL/VWARM/VHOT), USB BC1.2/DCP/non-standard adapter detection via DP/DM interface, and safety-critical functions including thermal shutdown (150°C), input over-voltage protection (6V/11V options), and battery under-voltage lockout (2.4V–3.0V range).

Key Specifications

Pinout & Package

MP2696AGQ-0000-P is housed in a thermally enhanced QFN-21 (3mm × 3mm, 0.5mm pitch) package with exposed thermal pad. Pin 1 is PGND; pin 21 is BST. The package supports high-density layout with minimal PCB footprint and efficient heat dissipation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar switching battery charger with boost and power-path applications.

Compared with BQ25895RTWR and IP2326, MP2696AGQ-0000-P provides superior configurability (I²C), higher boost capability (3.6A), and comprehensive JEITA/USB/thermal features - making it optimal for premium portable electronics requiring adaptive, safe, and host-integrated power management.

Availability

MP2696AGQ-0000-P is available at Aetrix Electronics and suitable for power bank charging, smartphone sub-battery systems, tablet external battery packs, and IoT gateway backup power applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for MP2696AGQ-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 focus on efficiency, integration, and thermal robustness for portable and industrial applications.

The MP2696A belongs to MPS's advanced battery management product line, engineered specifically for bidirectional, I²C-configurable charging and boosting in space-constrained, thermally demanding portable electronics.

FAQ

What is the maximum sustainable input voltage for MP2696AGQ-0000-P?

The absolute maximum input voltage (IN, PMID, SMID, SYS to PGND) is +16V per the datasheet Absolute Maximum Ratings table. This rating applies for transients up to 20ns. Continuous operation is specified from 4.0V to 11V, ensuring compatibility with standard 5V/9V/12V USB PD and wall adapters without external clamping.

Does MP2696AGQ-0000-P support USB Battery Charging Specification v1.2?

Yes - the DP/DM pins implement full BC1.2 detection (SDP/CDP/DCP) plus non-standard adapter identification using deglitch timing and short-resistance thresholds. It supports DCP entry after 2s and reports adapter type via I²C registers, eliminating need for external USB ID logic.

How is battery temperature monitored and used in charge control?

Temperature is sensed via an NTC thermistor connected between NTC (pin 18) and GND, biased by VRNTC (pin 20). Four programmable voltage thresholds (VCOLD/VCOOL/VWARM/VHOT) define JEITA zones. In cool range, charge current scales per JEITA_ISET; in warm range, charge voltage reduces per JEITA_VSET - all configurable via I²C.

Can MP2696AGQ-0000-P operate without I²C communication?

Yes - it supports autonomous operation with factory-default register settings: 1A charge current, 4.2V charge voltage, 3A input limit, and JEITA disabled. However, critical features like USB detection, custom JEITA profiles, boost voltage selection, and fault diagnostics require I²C initialization and polling.

What is the purpose of the IB pin and how is it calibrated?

IB (pin 17) outputs an analog voltage proportional to battery current: 0.35V/A during charging, 0.16V/A during discharging. It is calibrated at 25°C and requires no external components. For example, 2A charge current yields ~0.7V at IB; 1.5A discharge yields ~0.24V - enabling simple ADC-based current monitoring.

How does the input minimum voltage regulation (VIN_MIN) function improve adapter utilization?

VIN_MIN sets a target input voltage (e.g., 4.5V–4.76V) that the IC actively maintains by reducing charge current when input sags under load. This prevents adapter brownout, maximizes delivered power, and avoids triggering upstream over-current protection - especially valuable with low-cost or unregulated wall adapters.

Is thermal shutdown recoverable without power cycling?

Yes - thermal shutdown triggers at 150°C with 20°C hysteresis. Once junction temperature falls below 130°C, the device automatically resumes normal operation without requiring VIN removal or reset. This enables graceful thermal throttling in enclosed or high-ambient environments.