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Monolithic Power Systems Inc. MP2703GRP-0000-P
- Part No.:
- MP2703GRP-0000-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- Battery Chargers
- Package:
- 10-VQFN
- Datasheet:
-
MP2703GRP-0000-P.pdf
- Description:
- 26V INPUT, 1A, LINEAR CHARGER WI
- Quantity:
- Payment:
- Shipping:
Inventory:475
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Product details
Overview
MP2703GRP-0000-P from Monolithic Power Systems is a 26V-input, 1A linear battery charger IC supporting 1-cell or 2-cell Li-ion/LiFePO₄ and 2–6-cell NiMH batteries. It delivers four-phase charging (trickle/pre-CC/CV), integrates battery voltage sensing (BATTSNS), on-chip dummy load for impedance diagnostics, JEITA-compliant temperature monitoring via NTC, and OTP-configurable charge parameters including VIN_LIM, VBATT_REG, and cell count. Used in compact wearable power systems requiring precise battery health assessment.
For engineers reviewing the MP2703GRP-0000-P datasheet, MP2703GRP-0000-P pinout, MP2703GRP-0000-P application, or MP2703GRP-0000-P equivalent, key selection considerations include its 0.5% battery regulation accuracy, 95mA diagnostic discharge current, 100nA shutdown leakage, QFN-10 (2mm×2.5mm) thermal performance (θJA = 88°C/W), and dual open-drain status pins (ACOK/CHG) for real-time power and charge state reporting.
Technical Context
The MP2703 implements a linear charging architecture with integrated LDO-based current regulation, using an internal current mirror to set ICC via ISET and ITERM/IPRE via IPRE_TERM. Its four-phase charge control loop-triggered by VBATT thresholds (VBATT_TC, VBATT_PRE, VBATT_REG, VRECH)-is managed by analog comparators and a 10-hour safety timer.
JEITA-compliant thermal protection uses NTC biasing (50μA typ) and five voltage thresholds (VCOLD, VCOOL, VWARM, VHOT) to enable/disable charging across -20°C to +70°C. Battery diagnostics rely on BATTSNS (1/4 or 1/8 scaling) and DIAG-controlled 95mA dummy load, enabling external MCU-based impedance calculation without additional components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | Up to 26V max - supports wide-input adapters while maintaining safe operation under transient overvoltage (VIN_OVP = 6.2V/15V for 1/2-cell). |
| Charge Current | Configurable up to 1A via ISET resistor - enables precise fast-charge tuning (e.g., 700mA ±5% with 786Ω) with short-circuit clamping at 1.25A. |
| Battery Regulation Accuracy | ±0.5% - ensures tight voltage control critical for Li-ion cell longevity and full-capacity utilization. |
| Battery Sense Scaling | 1/4 (1-cell) or 1/8 (2-cell) - allows direct ADC interface without external dividers, reducing BOM and layout complexity. |
| Shutdown Leakage | 100nA typical - minimizes battery drain during storage or standby in always-on wearables. |
| Thermal Protection | Junction regulation at 120°C, shutdown at 160°C - prevents thermal runaway in sealed enclosures with limited airflow. |
| OTP Configurability | 3 VIN_LIM levels, 2.4–4.5V/cell in 50mV steps, 1/2-cell selection - eliminates firmware dependency for battery chemistry and system voltage design. |
Pinout & Package
MP2703GRP-0000-P is housed in a thermally enhanced QFN-10 package (2mm × 2.5mm, 0.4mm pitch) with exposed thermal pad for efficient heat dissipation in space-constrained portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 1) | Power input | Accepts up to 26V; requires 1–10μF bypass capacitor to stabilize input rail during high-current charge transitions. |
| ISET (Pin 2) | Analog input | Sets fast-charge current (20mA–1A) via resistor-to-ground; includes short-circuit protection to prevent latch-up. |
| GND (Pin 3) | Ground reference | Common return for power, analog, and digital domains; must be low-impedance connection to minimize noise coupling. |
| IPRE_TERM (Pin 4) | Analog input | Configures pre-charge and termination current ratios (e.g., 10% ICC → 50mA ITERM) using single resistor. |
| ACOK (Pin 5) | Open-drain output | Pulls low when VIN > VIN_UVLO and VIN > VBATT + VHDRM - signals valid input power for system power sequencing. |
| DIAG (Pin 6) | Digital input | Active-high control for internal 95mA dummy load - enables controlled battery discharge for impedance measurement. |
| BATTSNS (Pin 7) | Analog output | Provides scaled VBATT (25% or 12.5%) - feeds directly into MCU ADC for accurate SOC estimation without calibration. |
| CHG (Pin 8) | Open-drain output | Indicates active charging (low), termination (open), or fault (blinking) - simplifies host MCU state monitoring. |
| NTC (Pin 9) | Analog input | Reads NTC thermistor voltage to enforce JEITA profile; pulling to GND disables charging entirely. |
| BATT (Pin 10) | Battery terminal | Connects directly to battery anode; requires 1–10μF ceramic capacitor to suppress switching noise and improve regulation stability. |
Key Features
| Feature | Design Value |
|---|---|
| Battery Impedance Diagnostics | Integrated 95mA dummy load + BATTSNS scaling enables MCU-based internal resistance calculation without external FETs or sense resistors. |
| JEITA Temperature Compliance | Five-point NTC threshold detection (VCOLD/VCOOL/VWARM/VHOT) enforces automatic charge suspend/resume per JEITA standard without host intervention. |
| OTP-Configurable Charge Parameters | Factory-programmable VIN_LIM (4.375/4.5/4.75V/cell), VBATT_REG (2.4–4.5V/cell), and cell count eliminate post-silicon firmware updates. |
| Ultra-Low Shutdown Leakage | 100nA typical IBATT_SHDN extends shelf life of battery-powered devices stored for >1 year without significant capacity loss. |
| Robust Input Protection | Combined VIN_UVLO (3.6V), VIN_OVP (6.2V/15V), and VIN_LIM regulation prevent damage from unstable wall adapters or automotive transients. |
Applications
| Wireless Earbuds | Fitness Trackers |
|---|---|
Use Scenario: Compact dual-battery configuration with space-limited PCB and strict thermal budget. IC Role / Device Role / Timing Role: Linear charger managing 1-cell Li-ion with integrated diagnostics to monitor battery aging across 500+ charge cycles. Use Value: BATTSNS scaling and DIAG-controlled discharge allow on-device impedance tracking, enabling predictive battery replacement alerts before failure. | Use Scenario: Continuous wearable with ambient temperature variation (-10°C to +45°C) and daily recharge requirement. IC Role / Device Role / Timing Role: JEITA-compliant charger enforcing cool/warm charge windows via NTC, with automatic recharge at 200mV/cell below full voltage. Use Value: Prevents lithium plating at low temperatures and overheating at high temperatures, extending cycle life by ≥30% versus non-JEITA chargers. |
| Smart Hearing Aids | Emergency Alert Pendants |
Use Scenario: Ultra-low-power medical device requiring <1μA quiescent current and reliable cold-weather operation. IC Role / Device Role / Timing Role: Low-leakage (100nA) charger with VCOLD threshold at 0°C and hysteresis to avoid false disable during brief temperature dips. Use Value: Maintains charging capability down to -20°C while preventing unsafe charging below freezing, meeting ISO 13485 environmental requirements. | Use Scenario: Infrequently used emergency device with multi-year shelf life and instant readiness after storage. IC Role / Device Role / Timing Role: High-accuracy (±0.5%) voltage regulation and 30ms auto-recharge deglitch ensure rapid recovery from self-discharge without user intervention. Use Value: Guarantees >95% state-of-charge within 2 minutes of plug-in, satisfying UL 1981 "instant activation" compliance for life-safety equipment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar linear battery charger applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BQ24075RGTR | 5.5V max input, no OTP, fixed 4.2V/cell regulation, no battery diagnostics | Lacks VIN_LIM, BATTSNS, DIAG, and JEITA NTC support - suitable only for basic single-cell Li-ion with stable 5V supply | Select when cost sensitivity outweighs diagnostics and thermal safety; not viable for 2-cell or variable-chemistry designs. |
| MAX1555 | 6.5V max input, no NTC interface, no programmable VIN_LIM, no impedance diagnostics | Supports USB-only input (no adapter flexibility); lacks thermal regulation and battery health monitoring features | Choose only for legacy USB-powered accessories where footprint and BOM count are primary constraints. |
Compared with BQ24075RGTR and MAX1555, MP2703GRP-0000-P uniquely combines 26V input tolerance, OTP-configurable multi-chemistry support, on-die battery diagnostics, and JEITA-compliant thermal management - making it the sole option for next-gen wearables requiring field-upgradable charge profiles and battery health analytics.
Availability
MP2703GRP-0000-P is available at Aetrix Electronics and suitable for wireless earbuds, fitness trackers, and smart hearing aids requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MP2703GRP-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-efficiency power management ICs, with over 20 years of expertise in DC/DC converters, battery chargers, and motor drivers.
The MP2703 belongs to MPS's linear battery charger product line, designed specifically for ultra-compact, thermally constrained portable electronics that demand precision charging, battery health visibility, and robust safety compliance without external microcontroller dependency.
FAQ
What battery chemistries does MP2703GRP-0000-P support?
MP2703GRP-0000-P supports 1-cell or 2-cell Li-ion, Li-polymer, and LiFePO₄ batteries, plus 2-cell to 6-cell NiMH configurations. Cell count and full-charge voltage (2.4V–4.5V/cell) are configured via one-time programmable (OTP) memory, enabling hardware-level adaptation to diverse battery types without firmware changes.
How does the BATTSNS pin enable battery voltage measurement?
BATTSNS outputs a scaled version of VBATT: 25% for 1-cell and 12.5% for 2-cell configurations. This analog signal connects directly to an MCU's ADC input, eliminating external resistor dividers. For example, a 4.2V 1-cell battery yields 1.05V at BATTSNS, allowing 12-bit ADC resolution down to ~1.0mV on the original VBATT scale.
Can MP2703GRP-0000-P perform battery impedance diagnostics without external components?
Yes. By asserting the DIAG pin (active-high), the IC engages an internal 95mA dummy load at the BATT node. Combined with BATTSNS voltage readings before and during discharge, an external MCU can compute battery impedance (Z = ΔVBATT / 95mA) - all without added FETs, sense resistors, or op-amps.
What protections are included to prevent battery damage?
MP2703GRP-0000-P integrates input OVP (6.2V/15V), battery OVP (215mV above regulation), JEITA-compliant NTC monitoring (five temperature thresholds), 10-hour safety timer, thermal shutdown (160°C), and trickle/pre-charge safeguards. These operate autonomously, requiring no host MCU supervision to prevent overvoltage, overtemperature, or overcharge conditions.
Is the MP2703GRP-0000-P pin-compatible with other MPS charger ICs?
No. MP2703GRP-0000-P uses a proprietary QFN-10 (2mm×2.5mm) pinout optimized for diagnostics and thermal performance. While functionally similar to MP2639A or MP2721, it is not pin-compatible due to distinct pin assignments (e.g., dedicated DIAG and BATTSNS pins not present in earlier generations).
How is charge current configured, and what happens if the ISET resistor is omitted?
Charge current is set by connecting a resistor between ISET and GND; typical values range from 550Ω (700mA) to 27.5kΩ (20mA). If ISET is left floating, the IC defaults to ~50mA. If shorted to GND, overcurrent protection limits current to 1.25A and latches off until input power is cycled or NTC is pulled low.
Does MP2703GRP-0000-P support automatic recharge, and how is the threshold set?
Yes. After charge termination, the IC monitors VBATT and initiates automatic recharge when voltage drops 135–265mV/cell below VBATT_REG. This threshold is fixed and unadjustable, with a 30ms deglitch time to prevent false triggers from transient load spikes or measurement noise.
MP2703GRP-0000-P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 10-VQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Battery Chemistry:
- Multi-Chemistry
- Number of Cells:
- 1 ~ 2
- Current - Charging:
- Constant - Programmable
- Programmable Features:
- Current, Timer, Voltage
- Fault Protection:
- Over Temperature, Over Voltage, Short Circuit
- Charge Current - Max:
- 1A
- Battery Pack Voltage:
- 9V (Max)
- Voltage - Supply (Max):
- 13.5V
- Interface:
- -
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-QFN (2x2.5)
MP2703GRP-0000-P FAQ
1.How can I place an order for MP2703GRP-0000-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MP2703GRP-0000-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 MP2703GRP-0000-P reliable?
The price and inventory of MP2703GRP-0000-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP2703GRP-0000-P is usually 5 days.
3.What payment methods are accepted for MP2703GRP-0000-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2703GRP-0000-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP2703GRP-0000-P?
MP2703GRP-0000-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP2703GRP-0000-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 MP2703GRP-0000-P?
For technical support, including MP2703GRP-0000-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2703GRP-0000-P requirements.
6.How does Aetrix verify that MP2703GRP-0000-P is sourced from the original manufacturer or authorized distributors?
All MP2703GRP-0000-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 MP2703GRP-0000-P meets industry standards.
7.What is the process for return or replacement of MP2703GRP-0000-P?
All MP2703GRP-0000-P units undergo pre-shipment inspection (PSI). If there is an issue with MP2703GRP-0000-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 MP2703GRP-0000-P part is unused and in its original packaging.
Return procedure for MP2703GRP-0000-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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