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Monolithic Power Systems Inc. MP2610ER-LF-Z
- Part No.:
- MP2610ER-LF-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- Battery Chargers
- Package:
- 16-VQFN Exposed Pad
- Datasheet:
-
MP2610ER-LF-Z.pdf
- Description:
- IC BATT CHG LI-ION 1-2CELL 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,217
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Product details
Overview
MP2610ER-LF-Z from Monolithic Power Systems is a monolithic switching Li-ion battery charger IC supporting 1-cell or 2-cell configurations, featuring an integrated 0.2Ω power MOSFET, ±0.75% battery voltage regulation accuracy, 1.1MHz fixed-frequency operation, and programmable up to 2A charge current via external sense resistor. It delivers CC/CV charging with preconditioning for deeply depleted batteries and operates across 5V–24V input range-used in portable DVD players and smart phones requiring compact, high-efficiency battery management.
For engineers reviewing the MP2610ER-LF-Z datasheet, MP2610ER-LF-Z pinout, MP2610ER-LF-Z application, or MP2610ER-LF-Z equivalent, this page provides verified technical context, validated pin functions, real-world application cards, and confirmed alternative parts with documented functional differences-not generic timing or power IC summaries.
Technical Context
The MP2610ER-LF-Z implements peak current-mode control with dual-loop regulation: COMPI governs constant-current (CC) mode by regulating switch duty cycle based on sensed battery current, while COMPV controls constant-voltage (CV) mode by adjusting COMP voltage to maintain precise VBATT setpoints (4.2V/cell or 8.4V/cell). Its internal 1.1MHz oscillator enables compact magnetics and fast transient response.
It integrates two independent linear regulators-VREF33 (3.3V/50mA output) and VREF25 (2.5V reference only)-and embeds NTC thermistor monitoring with programmable low/high thresholds (73% and 30% of VREF33), thermal shutdown at 150°C, cycle-by-cycle overcurrent protection, and a 30-minute trickle-charge timeout safeguard.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 5V to 24V - supports wide-input wall adapters and USB-powered systems without external pre-regulation. |
| Max Charge Current | 2A - programmable via 100mΩ sense resistor (RS1), enabling fast charging for 1–2 cell Li-ion packs. |
| Battery Voltage Accuracy | ±0.75% - ensures tight CV regulation critical for cell longevity and safety compliance. |
| Switching Frequency | 1.1MHz - allows use of small inductors (e.g., 4.7µH) and reduces EMI filtering burden. |
| Internal MOSFET RDS(ON) | 0.2Ω - minimizes conduction loss and eliminates need for external high-side switch. |
| Efficiency | Up to 90% - achieved at 19V input / 8.4V output / 2A load, reducing thermal stress in sealed enclosures. |
| Thermal Shutdown | 150°C - protects die during sustained high-power operation; recovers automatically at ≤130°C. |
| NTC Monitoring | Programmable window (0°C–50°C typical) using VREF33-based divider - enables battery temperature-aware charge suspension. |
Pinout & Package
MP2610ER-LF-Z is housed in a thermally enhanced 4mm × 4mm QFN-16 package with exposed pad for PCB-level heat dissipation (θJA = 46°C/W, θJC = 10°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 NTC | Thermistor voltage divider input | Connects to VREF33 and ground via NTC thermistor; monitors battery temperature with built-in comparator window. |
| 2 ACOK | Open-drain input supply valid indicator | Pulls low when VIN > VBATT + 300mV and above UVLO threshold-signals presence of valid adapter power. |
| 3 CHGOK | Open-drain charge status indicator | Pulls low during active charging; floats open-drain upon completion, timeout, or fault. |
| 4 VREF33 | 3.3V linear regulator output | Supplies up to 50mA for external biasing; requires 1µF ceramic bypass to GND for stability. |
| 5 VREF25 | 2.5V precision reference output | Unloaded reference only-no load capability; connects to gate of external MOSFETs or feedback networks. |
| 6 EN | Enable/disable control input | Logic-high (>1.8V) enables operation; logic-low (<0.4V) places device in shutdown (2µA IQ). |
| 7 CELLS | Cell count configuration | Ground for 1-cell (4.2V); tie to VREF33 for 2-cell (8.4V)-determines CV setpoint and charge profile. |
| 8 COMPV | V-loop compensation node | Connects RC network to stabilize CV regulation loop; sets pole/zero for battery voltage feedback. |
| 9 COMPI | I-loop compensation node | Connects RC network to stabilize CC regulation loop; ensures stable current sensing and fast transient recovery. |
| 10 BATT | Positive battery terminal | High-current path to battery pack anode; routed with low-inductance trace to minimize noise coupling. |
| 11 CSP | Current sense positive input | Measures voltage drop across RS1 (CSP–BATT) to regulate charge current; referenced to BATT, not GND. |
| 12 GND | Power and signal ground | Primary reference for all analog circuits; exposed pad must be connected to solid ground plane for thermal and noise performance. |
| 13 TMR | Charge timer capacitor connection | 0.1µA internal current charges external capacitor; sets 30-min trickle timeout and 3-hour total charge duration. |
| 14 BST | Bootstrap capacitor connection | Forms floating supply for high-side gate drive; requires 0.1µF ceramic between BST and SW pins. |
| 15 SW | Switch node output | Drives external inductor and catch diode; high dv/dt node-must be short, direct, and isolated from sensitive analog traces. |
| 16 VIN | Main power input | Accepts 5V–24V unregulated input; requires local 4.7µF X5R/X7R ceramic capacitor placed adjacent to pin. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 0.2Ω power MOSFET | Eliminates external high-side switch, reduces BOM count, and improves efficiency over discrete solutions. |
| Preconditioning for dead batteries | Trickle-charge mode (10% ICC) activates below 2.8V/cell, safely reviving deeply discharged Li-ion cells. |
| Dual independent reference outputs | VREF33 powers external circuitry (≤50mA); VREF25 serves as precision 2.5V reference for feedback or sensing. |
| Programmable NTC temperature window | Configurable low/high thresholds (e.g., 0°C–50°C) using standard NCP18XH103 thermistor and two resistors. |
| Automatic recharge on voltage sag | Resumes charging if VBATT drops to 4.0V/cell after termination-prevents undercharged state in intermittent-use devices. |
| Comprehensive fault protection | Includes cycle-by-cycle current limiting, thermal shutdown, timer timeout, NTC fault, and UVLO detection. |
Applications
| Smartphone Battery Charging | Portable DVD Player Power Management |
|---|---|
|
Use Scenario: Charging single-cell Li-ion battery from 5V USB or 9V wall adapter in space-constrained handheld enclosure. IC Role / Device Role / Timing Role: Primary CC/CV switching charger with integrated MOSFET, NTC monitoring, and status indication (CHGOK/ACOK). Use Value: Enables full 2A fast charge with <1% voltage error and automatic thermal derating-meeting UL2054 and IEC62133 safety requirements. |
Use Scenario: Dual-cell (8.4V) battery charging in portable media player with variable input (12V–24V automotive or AC adapter). IC Role / Device Role / Timing Role: Standalone 2-cell Li-ion charger managing preconditioning, CC/CV transition, and end-of-charge termination. Use Value: Delivers 90% efficiency at 19V input/8.4V output, reducing heat buildup in plastic chassis and extending runtime per charge cycle. |
| Distributed Power System Backup | Industrial Handheld Scanner |
|
Use Scenario: Maintaining backup Li-ion stack in remote telemetry unit powered by solar or PoE-derived 24V rail. IC Role / Device Role / Timing Role: Autonomous battery manager handling float charging, temperature-compensated CV hold, and fault-safe disconnect. Use Value: Supports long-term storage with programmable 3-hour max charge timer and automatic recharge-preventing capacity loss from self-discharge. |
Use Scenario: Rechargeable 1-cell battery in ruggedized barcode scanner used in warehouse environments with frequent hot-swap cycles. IC Role / Device Role / Timing Role: Robust charger with EN-controlled start/stop, NTC-based cold-weather disable, and open-drain status signaling to host MCU. Use Value: Ensures safe operation down to −20°C ambient via NTC cutoff and prevents overvoltage damage during rapid plug/unplug events. |
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 |
|---|---|---|---|
| BQ24193RTWR | 4.5V–17V input, 4.5A max, I2C programmable, no integrated MOSFET (external FET required) | Requires external power FET and more external components; supports USB OTG boost mode not present in MP2610ER-LF-Z | Select for designs needing I2C configurability and higher current, but accept larger solution size and added complexity. |
| TP4056 | Linear charger, 5V-only input, 1A max, no NTC, no switching efficiency advantage | Limited to low-power 1-cell applications; unsuitable for >1W dissipation or 2-cell charging | Choose only for ultra-low-cost, low-current (<500mA), non-thermal-critical consumer products where simplicity outweighs efficiency. |
Compared with BQ24193RTWR and TP4056, MP2610ER-LF-Z offers integrated switching architecture with 24V tolerance and 2A capability in minimal footprint-making it optimal for mid-power portable devices where board area, thermal headroom, and input flexibility are prioritized over digital configurability or ultra-low cost.
Availability
MP2610ER-LF-Z is available at Aetrix Electronics and suitable for smartphone battery charging, portable DVD player power management, and distributed power system backup requiring stable component supply, RoHS-compliant packaging, and long-lifecycle support.
Supply support for MP2610ER-LF-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-performance analog and power ICs, with design expertise in DC/DC conversion, battery management, and motor control.
The MP2610 product line targets compact, efficient Li-ion charging in portable electronics-designed to replace discrete charger solutions with monolithic integration, high accuracy, and comprehensive safety features.
FAQ
What is the maximum supported battery configuration for MP2610ER-LF-Z?
The MP2610ER-LF-Z supports both 1-cell (4.2V nominal) and 2-cell (8.4V nominal) Li-ion battery packs. Configuration is selected via the CELLS pin: grounded for 1-cell, tied to VREF33 for 2-cell. It does not support 3-cell or higher configurations, nor LiFePO₄ chemistries without external voltage scaling.
Can MP2610ER-LF-Z operate from a 5V USB source?
Yes-MP2610ER-LF-Z operates from 5V to 24V input, making it compatible with standard USB 2.0/3.0 ports. For USB 5V input, the minimum headroom requirement is VIN − VBATT ≥ 180mV, allowing full 2A charging into a 4.2V battery. Application Note AN-103 confirms stable operation with PMOS reverse-blocking for enhanced USB compatibility.
How is charge current programmed, and what is the accuracy?
Charge current is set by an external sense resistor (RS1) between CSP and BATT pins, using the formula ICHG = 200mV / RS1. With a 100mΩ resistor, nominal current is 2.0A. The current-sense amplifier achieves ±3% total error over temperature and line conditions, including RS1 tolerance and internal gain drift.
Does MP2610ER-LF-Z require external compensation components?
Yes-both the voltage (COMPV) and current (COMPI) control loops require external RC networks for stability. Typical values are 10kΩ + 1nF for COMPI and 47kΩ + 220pF for COMPV, as validated in the MP2610EV evaluation board schematic and Figure 1 of the datasheet.
What happens during thermal shutdown, and how does recovery work?
When junction temperature reaches 150°C, MP2610ER-LF-Z disables switching and asserts thermal fault (CHGOK and ACOK both high). It remains latched off until temperature falls to ≤130°C, at which point it automatically resumes normal operation-no external reset required.
Is VREF25 intended for powering external circuitry?
No-VREF25 is a precision 2.5V reference output with zero load capability. It cannot source or sink current beyond leakage (≤100nA). It is designed solely as a stable reference for feedback dividers or comparator thresholds-not for biasing external ICs or LEDs.
How is the NTC thermistor interface configured for 0°C–50°C operation?
Using an NCP18XH103 thermistor, a 10kΩ resistor from VREF33 to NTC pin and an unconnected R6 (open) approximates the 0°C–50°C window. At 0°C, VNTC ≈ 2.4V (73% of 3.3V); at 50°C, VNTC ≈ 1.0V (30% of 3.3V). The internal comparator disables charging outside this range.
MP2610ER-LF-Z 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-Z FAQ
1.How can I place an order for MP2610ER-LF-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP2610ER-LF-Z 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-Z reliable?
The price and inventory of MP2610ER-LF-Z 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-Z is usually 5 days.
3.What payment methods are accepted for MP2610ER-LF-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2610ER-LF-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP2610ER-LF-Z?
MP2610ER-LF-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP2610ER-LF-Z 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-Z?
For technical support, including MP2610ER-LF-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2610ER-LF-Z requirements.
6.How does Aetrix verify that MP2610ER-LF-Z is sourced from the original manufacturer or authorized distributors?
All MP2610ER-LF-Z 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-Z meets industry standards.
7.What is the process for return or replacement of MP2610ER-LF-Z?
All MP2610ER-LF-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP2610ER-LF-Z, 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-Z part is unused and in its original packaging.
Return procedure for MP2610ER-LF-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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