Monolithic Power Systems Inc. EVKT-MP2696B

Overview

EVKT-MP2696B from Monolithic Power Systems is an evaluation kit for the MP2696B I²C-controlled, single-cell Li-ion/Li-polymer switching charger with integrated power-path management, boost converter (up to 4.0A), and 3.5A input current limit. It enables full functional validation of battery charging, SYS power delivery, USB BC1.2 detection, JEITA temperature profiling, and I²C register configuration in portable power bank and sub-battery applications.

For engineers reviewing the EVKT-MP2696B datasheet, EVKT-MP2696B setup guide, EVKT-MP2696B GUI operation, or EVKT-MP2696B hardware compatibility, this kit provides ready-to-run test infrastructure including the MP2696B evaluation board (EV2696B-Q-00A), USB-to-I²C interface (EVKT-USBI2C-02-BAG), and firmware-configurable GUI for real-time monitoring of charge/boost parameters, fault status, and thermal behavior.

Technical Context

The EVKT-MP2696B implements a complete reference design for the MP2696B IC, supporting all three operational modes: buck-mode charging (pre-charge → CC → CV), boost-mode system power delivery (5.15V/5.225V output), and idle-mode ultra-low-power operation (25μA battery discharge). It integrates the required external components - including 1μH inductor (L1), 22μF battery capacitor (CBATT), 10mΩ current-sense resistor (RS1), and NTC thermistor interface - on the EV2696B-Q-00A PCB.

Hardware-level USB BC1.2 and non-standard adapter detection is validated via DP/DM signaling circuitry, while real-time analog monitoring is enabled through the IB pin (battery current indicator) and VRNTC/NTC interface. The kit's USB-to-I²C bridge allows full read/write access to all 16 I²C registers, enabling dynamic adjustment of charge voltage (3.6–4.45V), input current limit (0.5–3.5A), boost output voltage, JEITA thresholds, and safety timers.

Key Specifications

Availability

EVKT-MP2696B is available at Aetrix Electronics and suitable for power bank development, smartphone/tablet accessory design, and portable medical device prototyping requiring stable component supply and rapid validation of bidirectional power-path architectures.

Supply support for EVKT-MP2696B 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 over two decades of expertise in DC/DC converters, battery chargers, and motor drivers.

The MP2696B product line targets portable and battery-powered systems requiring integrated charging, system power delivery, and intelligent thermal/power management - designed specifically for compact, high-efficiency power banks and dual-input portable electronics.

FAQ

What hardware components are included in the EVKT-MP2696B kit?

The kit contains one EV2696B-Q-00A evaluation board (MP2696B in QFN-21 package with all supporting passives), one EVKT-USBI2C-02-BAG (USB-to-I²C interface board + USB cable + ribbon cable), and access to online resources including datasheet, user guide, product brief, and GUI software - no additional components required for basic operation.

Does the EVKT-MP2696B support real-time I²C register read/write during operation?

Yes - the included USB-to-I²C interface enables live read/write access to all 16 MP2696B registers via the GUI, allowing dynamic reconfiguration of charge voltage, input current limit, boost output, JEITA thresholds, and safety timers without power cycling or hardware modification.

Can the EVKT-MP2696B validate both charging and boost modes simultaneously?

No - the MP2696B operates in only one primary mode at a time (charge, boost, or idle); however, the kit fully validates seamless transitions between modes, such as automatic boost activation when input is removed during system operation, or charge resumption upon input reconnection.

Is the EV2696B-Q-00A board RoHS-compliant and halogen-free?

Yes - the evaluation board uses MP2696B ICs and all passive components that meet MPS's green policy: lead-free, halogen-free, and compliant with EU RoHS Directive 2011/65/EU, as confirmed in the official MP2696B product documentation.

What USB standards does the EVKT-MP2696B support for adapter detection?

The kit validates BC1.2-compliant detection (SDP, CDP, DCP) and non-standard adapter identification using the MP2696B's integrated DP/DM interface, with programmable comparator thresholds (2.1V/2.9V), deglitch timing (8–12ms), and DCP timeout (2s) per the datasheet specifications.

How is battery current monitored on the EVKT-MP2696B?

Battery current is monitored via the analog IB pin output: 0.28–0.4V corresponds to 1A charge current; 0.135–0.175V corresponds to 1A discharge current in boost mode. This signal is accessible on the EV2696B-Q-00A board for oscilloscope or ADC measurement without I²C interaction.