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Monolithic Power Systems Inc. MP2703GRP-0000-Z
- Part No.:
- MP2703GRP-0000-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- Battery Chargers
- Package:
- 10-VQFN
- Datasheet:
-
MP2703GRP-0000-Z.pdf
- Description:
- 26V INPUT, 1A, LINEAR CHARGER WI
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
MP2703GRP-0000-Z 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 configurable constant-current/constant-voltage charging, integrated battery diagnostics (impedance via BATTSNS + internal 95mA dummy load), JEITA-compliant temperature monitoring via NTC, and OTP-configurable parameters including cell count, regulation voltage (2.4–4.5V/cell), and VIN_LIM thresholds. It operates in compact wearable power systems requiring precise battery health assessment.
For engineers reviewing the MP2703GRP-0000-Z datasheet, MP2703GRP-0000-Z pinout, MP2703GRP-0000-Z application, or MP2703GRP-0000-Z equivalent, key selection criteria include its 0.5% battery regulation accuracy, ISET/IPRE_TERM resistor-programmable charge current (up to 1A) and termination threshold, QFN-10 package thermal performance (θJA = 88°C/W), and dual open-drain status pins (ACOK, CHG) for real-time power and charge state monitoring.
Technical Context
The MP2703 implements a four-phase linear charging algorithm-trickle, pre-charge, constant-current fast charge, and constant-voltage regulation-with automatic transition based on measured VBATT relative to OTP-configured thresholds (VBATT_TC, VBATT_PRE, VRECH). Its analog front-end includes dedicated pins for precision battery voltage sensing (BATTSNS, scaling 1/4 or 1/8 VBATT), NTC biasing (50μA typ), and diagnostic control (DIAG).
Internal protection logic enforces input over-voltage (VIN_OVP: 6.0V/14.4V), battery OVP (±215mV/cell), thermal regulation (TJ_REG = 120°C), and safety timer (10hr typ), while OTP memory stores configuration for cell count, regulation voltage, VIN_LIM level, and JEITA temperature zones-enabling field-programmable behavior without external MCU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | Up to 26V sustained; UVLO at 3.6V (typ), enabling compatibility with wide-input adapters and USB PD sources. |
| Charge Current | Configurable up to 1A via ISET resistor; OCP clamps at 1.25A if ISET shorted, preventing damage during misconfiguration. |
| Battery Regulation Accuracy | ±0.5% per cell; ensures tight voltage control critical for LiFePO₄ (3.6V/cell) and high-voltage Li-ion (4.5V/cell) chemistries. |
| Battery Sense Ratio | 1/4 VBATT (1-cell) or 1/8 VBATT (2-cell) at BATTSNS; enables direct ADC interface without external scaling resistors. |
| Thermal Regulation Point | 120°C junction temperature; dynamically reduces charge current before reaching 150°C shutdown, preserving reliability in sealed enclosures. |
| Shutdown Leakage | ≤1μA BATT leakage (VBATT = 4.2V/8.4V); minimizes self-discharge in long-term storage of wearables and emergency devices. |
| JEITA Compliance | Four-zone NTC monitoring (cold/cool/warm/hot) with hysteresis; meets IEC 62133 for safe charging across -20°C to +60°C ambient. |
Pinout & Package
MP2703GRP-0000-Z is housed in a thermally enhanced QFN-10 package (2mm × 2.5mm, 0.5mm pitch) with exposed thermal pad, optimized for space-constrained portable electronics and supporting θJA = 88°C/W on standard 4-layer PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Power input | Accepts up to 26V; requires 1–10μF bypass capacitor to GND for stability under dynamic load. |
| 2 ISET | Analog input | Sets fast charge current (ICC) via resistor to GND; includes short-circuit protection to prevent latch-up. |
| 3 GND | Ground reference | Common return for power, analog, and digital circuits; must be low-impedance connection to thermal pad. |
| 4 IPRE_TERM | Analog input | Configures pre-charge current (IPRE) and termination threshold (ITERM) ratio relative to ICC using single resistor. |
| 5 ACOK | Digital output (open-drain) | Pulls low when VIN > VIN_UVLO and VIN > VBATT + VHDRM; signals valid input power to host system. |
| 6 DIAG | Digital input | Active-high control for internal 95mA dummy load; enables impedance measurement by correlating ΔVBATT and discharge current. |
| 7 BATTSNS | Analog output | Provides scaled VBATT (25% or 12.5%) for direct ADC sampling; eliminates need for external divider network. |
| 8 CHG | Digital output (open-drain) | Indicates charging (low), terminated (high-Z), or fault (pulsed); supports status polling without interrupt overhead. |
| 9 NTC | Analog input | Bias current (50μA) drives NTC thermistor; floating or grounded NTC disables charging per JEITA cold/hot limits. |
| 10 BATT | Battery terminal | Connects directly to battery anode; requires 1–10μF ceramic capacitor to GND for ripple suppression. |
Key Features
| Feature | Design Value |
|---|---|
| Battery impedance diagnostics | Integrated 95mA dummy load + BATTSNS analog output enable real-time internal resistance estimation using external MCU ADC. |
| OTP-configurable battery chemistry | One-time programmable registers set cell count (1/2), regulation voltage (2.4–4.5V/cell in 50mV steps), and VIN_LIM (4.375/4.5/4.75V/cell). |
| JEITA-compliant thermal management | Four independent NTC voltage thresholds (VCOLD/VCOOL/VWARM/VHOT) with hysteresis ensure safe charging across full industrial temperature range. |
| Robust input protection | Input OVP (6.0V/14.4V), UVLO (3.6V), and headroom-based ACOK assertion prevent operation under unsafe supply conditions. |
| Low-quiescent-power shutdown | 335μA input quiescent current and ≤1μA battery leakage preserve battery life during extended standby in emergency devices. |
Applications
| Wireless Earbuds | Fitness Trackers |
|---|---|
Use Scenario: Compact dual-battery (2S Li-ion) charging in true wireless stereo earbuds with case-level power management. IC Role / Device Role / Timing Role: Linear charger managing CC/CV profile, battery voltage sensing, and thermal foldback during rapid charging cycles. Use Value: 0.5% regulation accuracy extends cycle life; BATTSNS scaling eliminates external dividers, saving PCB area in <100mm² form factor. | Use Scenario: Single-cell Li-ion charging in wrist-worn fitness trackers with continuous heart-rate monitoring and Bluetooth LE connectivity. IC Role / Device Role / Timing Role: Charger with integrated JEITA temperature profiling and low-leakage shutdown to maximize runtime between charges. Use Value: 1μA shutdown leakage preserves battery for >6 months in storage; NTC monitoring prevents charging below 0°C or above 60°C. |
| Emergency SOS Beacons | Smart Hearing Aids |
Use Scenario: Ruggedized handheld emergency beacon with 2-cell LiFePO₄ battery, requiring reliable charging under variable solar/USB inputs. IC Role / Device Role / Timing Role: High-input-tolerance (26V) linear charger supporting LiFePO₄ (3.6V/cell) with OTP-set regulation and OVP protection. Use Value: 26V input sustain allows direct connection to 12V vehicle systems; ±0.5% regulation ensures consistent capacity delivery across temperature. | Use Scenario: Rechargeable in-ear hearing aids using 1-cell Li-ion with ultra-low-power operation and battery health reporting. IC Role / Device Role / Timing Role: Charger with impedance diagnostics enabling battery health estimation via MCU-driven discharge pulses on BATTSNS. Use Value: Integrated 95mA dummy load + 25% scaled BATTSNS output enables accurate ESR calculation without additional components or firmware overhead. |
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 integrated battery diagnostics or OTP configuration; fixed 4.2V/cell regulation. | Limited to low-voltage USB-only charging; lacks impedance measurement or JEITA thermal zones. | Select only for cost-sensitive, single-chemistry (Li-ion) designs where 26V input tolerance and diagnostics are unnecessary. |
| MAX1555 | 12V max input; no NTC interface; no programmable termination or pre-charge; no battery sense output. | Supports basic USB/AC charging only; no temperature-aware charging or battery health features. | Choose only for legacy designs requiring pin compatibility with older Maxim platforms and minimal feature set. |
Compared with BQ24075RGTR and MAX1555, MP2703GRP-0000-Z uniquely combines 26V input tolerance, OTP-configurable multi-chemistry support, integrated battery diagnostics, and JEITA-compliant thermal management-making it the sole option for next-generation wearables requiring battery health visibility and wide-input adaptability.
Availability
MP2703GRP-0000-Z is available at Aetrix Electronics and suitable for wireless earbuds, fitness trackers, and emergency SOS beacons requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MP2703GRP-0000-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 power management ICs, with design focus on efficiency, integration, and thermal robustness for portable and industrial applications.
The MP2703 belongs to MPS's battery management IC product line, engineered specifically for space-constrained, multi-chemistry battery systems requiring precision charging, real-time diagnostics, and autonomous thermal safety-targeting wearables, medical devices, and IoT edge nodes.
FAQ
What battery chemistries does MP2703GRP-0000-Z support?
MP2703GRP-0000-Z supports 1-cell or 2-cell Li-ion, Li-polymer, LiFePO₄ (configurable 2.4–4.5V/cell), and 2–6-cell NiMH batteries. OTP programming sets cell count and regulation voltage per chemistry; JEITA-compliant NTC monitoring ensures safe charging across all supported types.
How is charge current configured on MP2703GRP-0000-Z?
Fast charge current (ICC) is set by connecting a resistor between ISET and GND. Using RISET = 786Ω yields 700mA (typ); RISET = 11kΩ gives 50mA (typ). The relationship follows ICC ≈ 1.2V / (RISET × 2.18×10⁻³), with ISET short-circuit protection limiting current to 1.25A.
Can MP2703GRP-0000-Z perform battery impedance measurements?
Yes. By asserting the DIAG pin (active-high), the IC enables a 95mA internal dummy load. Simultaneous sampling of BATTSNS (1/4 or 1/8 VBATT) before and during discharge allows external MCU to compute battery ESR. No external load or ADC scaling is required.
What protections does MP2703GRP-0000-Z include?
It integrates input OVP (6.0V/14.4V), battery OVP (±215mV/cell), thermal regulation (120°C), thermal shutdown (160°C), charge safety timer (10hr typ), trickle/pre-charge timers, and ISET short-circuit protection. All protections are hardware-based with no firmware dependency.
Is MP2703GRP-0000-Z compatible with 26V input sources?
Yes. The device sustains up to 26V at the IN pin and includes input OVP thresholds (6.0V for 1-cell, 14.4V for 2-cell) and UVLO (3.6V) to ensure safe operation. Its architecture tolerates transient overvoltage while maintaining regulation integrity across the full input range.
How does the ACOK pin indicate input power status?
ACOK is an open-drain output that pulls low when VIN exceeds both the UVLO threshold (3.6V) and the VBATT + headroom threshold (200mV for 1-cell, 240mV for 2-cell). It remains high-Z otherwise, providing unambiguous "power good" signaling to host systems.
What is the function of the BATTSNS pin?
BATTSNS provides an analog output proportional to battery voltage: 25% of VBATT for 1-cell mode or 12.5% for 2-cell mode. This scaled voltage connects directly to an external ADC, eliminating external resistor dividers and associated errors in battery monitoring.
MP2703GRP-0000-Z 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):
- 14.4V
- Interface:
- -
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-QFN (2x2.5)
MP2703GRP-0000-Z FAQ
1.How can I place an order for MP2703GRP-0000-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP2703GRP-0000-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 MP2703GRP-0000-Z reliable?
The price and inventory of MP2703GRP-0000-Z 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-Z is usually 5 days.
3.What payment methods are accepted for MP2703GRP-0000-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2703GRP-0000-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP2703GRP-0000-Z?
MP2703GRP-0000-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP2703GRP-0000-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 MP2703GRP-0000-Z?
For technical support, including MP2703GRP-0000-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2703GRP-0000-Z requirements.
6.How does Aetrix verify that MP2703GRP-0000-Z is sourced from the original manufacturer or authorized distributors?
All MP2703GRP-0000-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 MP2703GRP-0000-Z meets industry standards.
7.What is the process for return or replacement of MP2703GRP-0000-Z?
All MP2703GRP-0000-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP2703GRP-0000-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 MP2703GRP-0000-Z part is unused and in its original packaging.
Return procedure for MP2703GRP-0000-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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