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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Battery Chargers

Monolithic Power Systems Inc. MP2610ER-LF-P

Name: MP2610ER-LF-P
Brand: Monolithic Power Systems Inc.
SKU: MP2610ER-LF-P
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MP2610ER-LF-P

Manufacturer:: Monolithic Power Systems Inc.

Category:: Battery Chargers

Package:: 16-VQFN Exposed Pad

Datasheet:: MP2610ER-LF-P.pdf

Description:: IC BATT CHG LI-ION 1-2CELL 16QFN

Quantity:: RFQ Add To RFQ list

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Product details

Overview

MP2610ER-LF-P from Monolithic Power Systems is a monolithic switching Li-ion battery charger IC supporting 1-cell or 2-cell configurations, integrating a 0.2Ω internal power MOSFET, delivering up to 2A programmable charge current, ±0.75% battery voltage accuracy, and fixed 1.1MHz switching frequency - used in portable electronics requiring fast, thermally robust, and NTC-monitored charging.

For engineers reviewing the MP2610ER-LF-P datasheet, MP2610ER-LF-P pinout, MP2610ER-LF-P application, or MP2610ER-LF-P equivalent, key selection criteria include its dual-cell configuration flexibility (via CELLS pin), integrated thermal shutdown and cycle-by-cycle overcurrent protection, NTC-based temperature window monitoring, and 5V–24V wide-input operation with minimal external components.

Technical Context

The MP2610ER-LF-P implements peak current-mode control with dual feedback loops: COMPI regulates constant-current (CC) mode via current-sense amplifier A2 and RS1, while COMPV regulates constant-voltage (CV) mode via GMV amplifier. Its 1.1MHz oscillator enables compact magnetics and low output ripple.

It features two internal linear regulators (VREF33 at 3.3V/50mA and VREF25 at 2.5V reference-only), programmable timer termination (3-hour total / 30-minute trickle), and automatic recharge at 4.0V/cell with 100mV/cell hysteresis - all coordinated through a dedicated fault-protection state machine covering NTC out-of-window, thermal shutdown (>150°C), UVLO (3.2V), and timer timeout.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	5V to 24V - supports wall adapters, USB PD, and industrial DC supplies without pre-regulation
Charge Current	Up to 2A programmable via 100mΩ sense resistor - enables full-rate charging for 2600mAh+ single-cell or 1300mAh+ dual-cell packs
Battery Voltage Accuracy	±0.75% - ensures precise CV termination at 4.2V/cell or 8.4V for 2-cell, minimizing overcharge risk
Switching Frequency	Fixed 1.1MHz - allows use of small 4.7µH inductors and reduces EMI filtering burden
Internal MOSFET R_DS(ON)	0.2Ω - eliminates external high-side switch, reducing BOM count and PCB area
NTC Monitoring	Programmable low/high thresholds (73%/30% × VREF33) - enables safe charging across 0°C–50°C using standard NCP18XH103 thermistor
Thermal Shutdown	150°C junction - protects die during sustained high-power operation or poor heatsinking
Efficiency	Up to 90% at 19V input, 2-cell 8.4V output - minimizes thermal load in sealed enclosures

Pinout & Package

MP2610ER-LF-P is housed in a thermally enhanced 4mm × 4mm QFN-16 package with exposed pad for improved heat dissipation. The pin layout supports compact, noise-immune layout: high-current paths (IN, SW, BATT, CSP, GND) are grouped on one side; analog/compensation pins (COMPV, COMPI, NTC, TMR) are isolated on the opposite side.

Pin/Terminal	Circuit Role	Design Meaning
1 NTC	NTC thermistor input	Voltage divider node for battery temperature sensing; triggers charge suspend if outside 73%/30% × VREF33 window
2 ACOK	Input supply valid indicator	Open-drain output pulled low when VIN > VBATT + 300mV and above UVLO threshold
3 CHGOK	Charging status indicator	Open-drain output pulled low during active charge; floats upon CV completion or fault
4 VREF33	3.3V reference output	Stable 3.3V/50mA supply for external biasing or NTC divider; requires 1µF ceramic bypass
5 VREF25	2.5V reference output	High-precision 2.5V reference only - no load capability; must remain unloaded or capacitively coupled <100pF
6 EN	Enable control input	Active-high logic input; <0.4V = shutdown (2µA I_Q), >1.8V = operational
7 CELLS	Cell count configuration	Ground = 1-cell (4.2V), tie to VREF33 = 2-cell (8.4V); floating prohibited
8 COMPV	V-loop compensation	Connect RC network to stabilize CV regulation loop; sets pole/zero for 8.4V output stability
9 COMPI	I-loop compensation	Connect RC network to stabilize CC regulation loop; ensures fast transient response to load steps
10 BATT	Battery positive terminal	Main high-current path to battery anode; routed with wide copper to minimize IR drop
11 CSP	Current sense positive	High-side sense input; forms differential pair with BATT to measure RS1 voltage (200mV full-scale)
12 GND	Power and signal ground	Reference for all analog blocks; exposed pad must be solidly connected to PCB ground plane
13 TMR	Timer capacitor connection	0.1µA current charges external cap; sets 30-min trickle timeout and 3-hour total charge limit
14 BST	Bootstrap supply	Connects between SW and BST to generate gate drive voltage >VIN for internal high-side MOSFET
15 SW	Switch node	Drives external inductor; high dv/dt node requiring short, shielded trace away from analog pins
16 IN	Input supply	Accepts 5–24V unregulated input; requires local 4.7µF X5R/X7R ceramic decoupling

Key Features

Feature	Design Value
Integrated 0.2Ω power MOSFET	Eliminates need for external high-side switch, reducing solution size by >30% and simplifying layout
Dual independent regulation loops	Separate COMPI (CC) and COMPV (CV) pins enable independent loop compensation for optimal stability across 1/2-cell configurations
Programmable NTC temperature window	Configurable low/high thresholds via external resistors allow precise thermal cutoff for specific battery chemistries and pack designs
Preconditioning for dead batteries	Trickle mode (10% ICC) activates below 2.8V/cell, safely recovering deeply discharged cells before CC ramp-up
Two open-drain status outputs	ACOK and CHGOK provide real-time system-level visibility into input presence and charge state without polling or ADC
Fixed-frequency 1.1MHz operation	Enables consistent EMI profile and predictable filter design; avoids audible noise and simplifies compliance testing

Applications

Smartphone Charging Module

Industrial Handheld Terminal

Use Scenario: Integrated charging subsystem in space-constrained smartphone PCB with dual-cell 8.4V battery.

IC Role / Device Role / Timing Role: Primary switching charger IC managing CC/CV profiles, NTC monitoring, and status signaling to baseband processor.

Use Value: Delivers 2A charge current with ±0.75% voltage accuracy and automatic 4.0V/cell recharge - extending usable runtime and preventing overvoltage stress on aging cells.

Use Scenario: Ruggedized handheld terminal operating in variable ambient temperatures (−20°C to +60°C) with hot-swappable 2-cell battery.

IC Role / Device Role / Timing Role: Battery management front-end providing input fault detection, thermal-safe charging, and EN-controlled power sequencing.

Use Value: NTC window comparator (0°C–50°C) and thermal shutdown prevent charging outside safe battery temperature range - critical for field-deployed equipment reliability.

USB-Powered Portable DVD Player

Distributed Power System Charger

Use Scenario: Consumer DVD player accepting 5V USB input with 1-cell 4.2V Li-ion battery backup.

IC Role / Device Role / Timing Role: Input-flexible charger IC enabling direct USB 5V charging with minimal external components and low dropout.

Use Value: Wide 5–24V input range and 180mV VIN–VBATT headroom allow stable 5V USB charging even under cable voltage drop - eliminating need for boost pre-regulator.

Use Scenario: Centralized 24V DC distribution board powering multiple remote devices, each with local 2-cell Li-ion backup.

IC Role / Device Role / Timing Role: Standalone charger per node, configured via CELLS pin for 2-cell operation and coordinated via shared TMR timing.

Use Value: Fixed 1.1MHz frequency and integrated MOSFET reduce per-node component count and EMI coupling - simplifying multi-channel power architecture.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BQ24160RGTR	Lower max input (16V), no integrated MOSFET (requires external FET), 3.5A max charge current	Requires external power stage and more compensation components; better suited for higher-current, lower-input systems	Select if >2A charge current or tighter input voltage limits (≤16V) are required
MAX1555	Linear charger (not switching), 500mA max, 6V max input, no NTC support	Lacks switching efficiency, thermal headroom, and temperature safety - limited to low-power, low-heat applications	Select only for ultra-low-noise, sub-500mA, single-cell applications where simplicity outweighs efficiency

Compared with BQ24160RGTR and MAX1555, MP2610ER-LF-P uniquely combines 24V input tolerance, integrated 0.2Ω MOSFET, and programmable NTC monitoring in a 4mm×4mm QFN - making it optimal for industrial and portable systems needing robust, self-contained 1/2-cell charging without external power switches or thermal sensors.

Availability

MP2610ER-LF-P is available at Aetrix Electronics and suitable for smartphone charging modules, industrial handheld terminals, USB-powered portable DVD players, and distributed power system chargers requiring stable component supply, long-lifecycle availability, and RoHS-compliant packaging.

Supply support for MP2610ER-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 expertise in DC/DC conversion, LED drivers, motor drivers, and battery management solutions.

The MP2610 product line delivers highly integrated switching Li-ion chargers targeting portable and industrial applications where space, thermal performance, and safety-critical battery monitoring are essential - emphasizing minimal external components and configurable protection.

FAQ

What is the maximum supported battery configuration for MP2610ER-LF-P?

The MP2610ER-LF-P supports both 1-cell (4.2V nominal) and 2-cell (8.4V nominal) Li-ion battery packs. Configuration is set by the CELLS pin: grounding selects 1-cell mode; connecting to VREF33 selects 2-cell mode. Leaving CELLS floating is prohibited and may cause undefined behavior or latch-up.

How is charge current programmed, and what is the sensing accuracy?

Charge current is programmed using an external sense resistor (RS1) between CSP and BATT pins. With a typical 100mΩ resistor, full-scale current is 2A (ICHG = 200mV / RS1). The current-sense amplifier achieves ±1% gain accuracy over temperature, enabling precise CC regulation within datasheet-specified tolerances.

Does MP2610ER-LF-P support battery temperature monitoring, and how is it implemented?

Yes - MP2610ER-LF-P integrates an NTC thermistor window comparator. A resistor divider formed by VREF33, an external resistor (e.g., 10kΩ), and the battery-pack NTC connects to the NTC pin. Internal thresholds at 73% and 30% of VREF33 detect out-of-range temperatures, suspending charge until the thermistor voltage re-enters the window.

What protection features are built into MP2610ER-LF-P?

MP2610ER-LF-P includes cycle-by-cycle overcurrent limiting, thermal shutdown at 150°C, input UVLO (3.2V with 200mV hysteresis), NTC-based temperature fault detection, programmable timer termination (30-min trickle / 3-hour total), and automatic recharge at 4.0V/cell with 100mV hysteresis - all implemented in hardware without software intervention.

Can MP2610ER-LF-P operate from a 5V USB source, and what design considerations apply?

Yes - MP2610ER-LF-P operates down to 5V input. For USB 5V applications, ensure VIN–VBATT headroom ≥180mV (per datasheet) and use a low-drop PMOS instead of the blocking diode to maintain sufficient voltage for full 4.2V/cell charging. Also verify inductor saturation current exceeds 2.3A peak under worst-case duty cycle.

What is the role of the VREF25 pin, and can it drive external circuitry?

VREF25 provides a precision 2.5V reference only - it cannot source or sink current beyond leakage (<1µA). It must not be loaded; connecting any capacitor larger than 100pF or resistive load will destabilize internal biasing. Its intended use is as a reference for external comparators or ADCs, not as a power rail.

How does the timer function interact with trickle and main charge phases?

The internal timer uses a 0.1µA current source charging the external TMR capacitor. Trickle mode duration is 30 minutes × (C_TMR/0.1µF); total charge time is 3 hours × (C_TMR/0.1µF). If trickle mode expires before VBATT reaches 2.8V/cell, charging terminates immediately with CHGOK high and ACOK low.

MP2610ER-LF-P Specifications

Product attributes: Attribute value

Manufacturer:: Monolithic Power Systems Inc.

Series:: -

Package/Case:: 16-VQFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Active

Battery Chemistry:: Lithium Ion

Number of Cells:: 1 ~ 2

Current - Charging:: Constant - Programmable

Programmable Features:: Timer

Fault Protection:: Over Current, Over Temperature

Charge Current - Max:: 2A

Battery Pack Voltage:: 8.4V

Voltage - Supply (Max):: 24V

Interface:: -

Operating Temperature:: -20°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 16-QFN (4x4)

MP2610ER-LF-P FAQ

1.How can I place an order for MP2610ER-LF-P through Aetrix?

Please submit a Request for Quotation (RFQ) for MP2610ER-LF-P on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for MP2610ER-LF-P reliable?

The price and inventory of MP2610ER-LF-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP2610ER-LF-P is usually 5 days.

3.What payment methods are accepted for MP2610ER-LF-P?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2610ER-LF-P transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MP2610ER-LF-P?

MP2610ER-LF-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MP2610ER-LF-P order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for MP2610ER-LF-P?

For technical support, including MP2610ER-LF-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2610ER-LF-P requirements.

6.How does Aetrix verify that MP2610ER-LF-P is sourced from the original manufacturer or authorized distributors?

All MP2610ER-LF-P products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MP2610ER-LF-P meets industry standards.

7.What is the process for return or replacement of MP2610ER-LF-P?

All MP2610ER-LF-P units undergo pre-shipment inspection (PSI). If there is an issue with MP2610ER-LF-P, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The MP2610ER-LF-P part is unused and in its original packaging.

Return procedure for MP2610ER-LF-P:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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