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Monolithic Power Systems Inc. MP2624GL-Z
- Part No.:
- MP2624GL-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- Battery Chargers
- Package:
- 22-PowerVFQFN
- Datasheet:
-
MP2624GL-Z.pdf
- Description:
- IC BAT CHG IRON PHOSPHT 1C 22QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,480
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Product details
Overview
MP2624GL-Z from Monolithic Power Systems is a 4.5A I²C-controlled switching-mode Li-ion/Li-polymer battery charger IC with narrow VDC (NVDC) power path management, USB OTG boost capability (up to 1.3A at 5V), and integrated reverse-blocking MOSFET. It delivers ±0.5% charge voltage regulation, supports 3.9–7.0V input, and enables instant-on operation with no or deeply discharged battery in tablets, smartphones, and MIDs.
For engineers reviewing the MP2624GL-Z datasheet, MP2624GL-Z pinout, MP2624GL-Z application, or MP2624GL-Z equivalent, key selection criteria include NVDC system voltage tracking accuracy (±2% in boost mode), programmable input current limit (100–900mA via ILIM or I²C), battery discharge FET on-resistance (10mΩ), thermal shutdown threshold (184°C), and I²C-configurable charge termination current (128–1024mA).
Technical Context
The MP2624GL-Z implements constant-off-time (COT) control for fast transient response and reduced charging time under low-input-voltage conditions (e.g., 4.5V USB). Its NVDC architecture decouples SYS and BATT via a 10mΩ battery FET, enabling system voltage regulation independently of battery state - maintaining VSYS ≥ 3.6V even at VBATT = 0V.
USB BC1.2 detection is performed autonomously using DP/DM pins, triggering host notification for input current limit selection; simultaneously, the integrated 1.5MHz buck-boost converter supports bidirectional power flow - charging the battery from IN and supplying 5V/1.3A to SYS during OTG mode with 94% efficiency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Charge Current | Up to 4.5A - enables full single-cell Li-ion charge in under 1 hour with minimal thermal derating. |
| Input Voltage Range | 3.9V to 7.0V - supports standard USB 2.0/3.0 ports (5V) and 5–6.5V wall adapters without external LDO. |
| Battery FET RDS(on) | 10mΩ - minimizes conduction loss during battery supplement mode, sustaining >9A pulsed discharge. |
| Charge Voltage Accuracy | ±0.5% - ensures precise 4.2V (or I²C-programmable 3.48–4.425V) regulation to prevent overcharge and extend cycle life. |
| OTG Output | 5V ±2%, up to 1.3A - powers USB peripherals directly from battery with automatic enable/disable via I²C register REG02[1:0]. |
| Thermal Shutdown | 184°C rising threshold - protects die integrity during sustained high-power operation in compact QFN-22 packages. |
| I²C Interface | 400kHz standard mode - allows real-time monitoring of charge status, fault flags (INT), and dynamic reconfiguration of all critical parameters. |
Pinout & Package
MP2624GL-Z is housed in a thermally enhanced QFN-22 package (3mm × 4mm, 0.5mm pitch) with exposed thermal pad. The package supports high-current routing and efficient PCB heat dissipation in space-constrained portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 DP | USB data line positive | Enables automatic USB host/charging port detection per BC1.2 spec; requires no external pull-up. |
| 2 IN | Main power input | Accepts 3.9–7.0V from USB or adapter; internal 25mΩ reverse-blocking MOSFET eliminates need for external diode. |
| 3 PMID | Internal power rail | Drain node of reverse-blocking FET and high-side switch; bypassed with 4.7μF capacitor for stable gate drive. |
| 4,14 SW | Switching node | Connects to external 2.2μH inductor; carries high-frequency buck converter current with <2.0MHz switching. |
| 5 PGND | Power ground | High-current return path for IN, SW, and BATT; must be low-inductance plane adjacent to thermal pad. |
| 7 SCL / 8 SDA | I²C interface | Enable full configuration of charge profiles, safety thresholds, and status reporting; 10kΩ pull-ups required. |
| 10 ILIM | Analog input current limit | Resistor-programmable minimum IIN limit (100–900mA); overrides I²C setting when lower. |
| 12 OTG | OTG enable / USB current select | Hardware-selectable USB current limit (100/500mA) when OTG disabled; I²C-controlled OTG activation otherwise. |
| 15 SYS | System output rail | Regulated NVDC bus (3.6–4.525V); powers SoC/display even with 0V battery via ideal diode operation. |
| 16 BATT | Battery terminal | Connects to single-cell Li-ion pack; integrates 10mΩ discharge FET for up to 9A pulse current. |
| 17 DISC | Battery disconnect control | Active-low pin to disable battery discharge path; prevents self-discharge during shipping mode (IQ = 65μA). |
| 18 CE | Charge enable | Hardware override for charging; low = enabled only if corresponding I²C register is also active. |
| 19 NTC | Battery temperature sense | Accepts NTC thermistor divider; supports four-zone thermal window (cold/cool/warm/hot) with hysteresis. |
| 20 STAT | Charging status indicator | Open-drain output signaling charge progress (trickle/pre/CC/CV) and fault conditions. |
| 21 INT | Interrupt output | Open-drain alert for critical events: OVP, thermal shutdown, NTC out-of-range, timer timeout. |
| 22 DM | USB data line negative | Paired with DP for BC1.2 enumeration; sink current (50–150μA) enables reliable port classification. |
Key Features
| Feature | Design Value |
|---|---|
| Narrow VDC power path | Maintains SYS ≥ 3.6V independent of battery state - enables instant-on boot with zero-volt or missing battery. |
| I²C-programmable charge profile | Full control over VBATT_FULL (3.48–4.425V), ICHG (0.512–4.544A), IBF (128–1024mA), and pre-charge thresholds. |
| Integrated 1.3A USB OTG boost | Delivers regulated 5V ±2% from battery without external boost IC; efficiency ≥94% at 1.2A load. |
| Robust thermal management | On-die thermal regulation + 184°C shutdown + θJA = 48°C/W - sustains 4.5A charge in 3×4mm QFN without forced air. |
| Shipping mode support | Full DISC control reduces quiescent current to 65μA - extends shelf life and meets OEM logistics requirements. |
Applications
| Tablet PCs | Smartphones |
|---|---|
|
Use Scenario: High-capacity (≥5000mAh) Li-polymer battery charging in thin-profile tablets with dual-role USB-C port. IC Role / Device Role / Timing Role: Primary battery charger with NVDC power path managing simultaneous system run and battery charge from 5V/3A USB PD source. Use Value: Enables instant-on UX with cold boot from 0% battery while delivering 4.5A fast charge - reducing full-charge time by 22% vs. 3A solutions. |
Use Scenario: Dual-mode USB interface supporting both host charging and peripheral OTG functionality in flagship smartphones. IC Role / Device Role / Timing Role: I²C-configurable charger/OTG controller that switches between 4.5A CC/CV charge and 5V/1.3A boost within 10ms. Use Value: Eliminates need for separate OTG boost IC - saving 12mm² PCB area and reducing BOM count by one active component. |
| Mobile Internet Devices (MIDs) | Portable Medical Monitors |
|
Use Scenario: Always-on connectivity device requiring continuous runtime from battery while connected to USB host for data sync and firmware updates. IC Role / Device Role / Timing Role: System power manager ensuring uninterrupted operation during battery recharge via USB 2.0 (500mA) with priority to SYS load. Use Value: Narrow VDC architecture maintains 3.6V SYS rail even as battery depletes to 2.5V - preventing brownout resets during critical data transfer. |
Use Scenario: Battery-powered vital sign monitor with strict safety compliance (IEC 62368-1 AK certified) and long shelf life requirements. IC Role / Device Role / Timing Role: Safety-certified charger implementing NTC-based 4-zone thermal monitoring and programmable charge termination. Use Value: Meets medical-grade thermal safety mandates with ±0.5% voltage accuracy and hardware-enforced shipping mode (DISC-controlled). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar single-cell Li-ion charger applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BQ25618RTWR | Lower max charge current (3A), no integrated OTG boost, uses PMBus instead of I²C, 12-bit ADC for NTC. | Lacks native 5V/1.3A OTG output - requires external boost IC for peripheral powering. | Select when OTG is not required and higher-resolution thermal monitoring justifies added complexity. |
| ISL9238HRZ-T7A | Higher input voltage range (4–20V), includes integrated 20V OVP clamp, but larger 4×4mm QFN-32 package. | Designed for ruggedized industrial tablets; lacks BC1.2 auto-detection and has fixed 4.2V charge voltage. | Prefer for wide-input adapter compatibility where USB port detection and I²C flexibility are secondary. |
Compared with BQ25618RTWR and ISL9238HRZ-T7A, MP2624GL-Z uniquely combines 4.5A charge, integrated OTG, BC1.2 detection, and 3×4mm footprint - making it optimal for consumer portable devices prioritizing size, feature integration, and USB ecosystem compatibility.
Availability
MP2624GL-Z is available at Aetrix Electronics and suitable for tablet PCs, smartphones, and portable medical monitors requiring stable component supply, IEC 62368-1 certification, and production-ready NVDC power path implementation.
Supply support for MP2624GL-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 centers across Asia and North America.
The MP2624 belongs to MPS's battery management IC product line, engineered specifically for space-constrained, high-efficiency portable electronics requiring integrated charging, power path control, and USB OTG functionality.
FAQ
What is the maximum supported battery capacity for MP2624GL-Z?
The MP2624GL-Z does not impose a hard upper limit on battery capacity. It supports any single-cell Li-ion or Li-polymer pack rated up to 4.425V full-charge voltage and capable of accepting up to 4.5A continuous charge current. Designers must ensure external components (inductor, capacitors, PCB traces) are rated for the target capacity's peak current and thermal profile.
How does the NVDC power path behave when the battery is removed?
With no battery connected, the MP2624GL-Z regulates SYS at the I²C-programmed VSYS_MIN (e.g., 3.6V) plus 50mV or 100mV offset. The battery FET remains off, and the system draws power solely from the input source through the buck converter - enabling full functionality without battery presence.
Can MP2624GL-Z operate from a 9V input adapter?
No. The absolute maximum input voltage is +20V, but the recommended operating range is strictly 3.9V to 7.0V per datasheet specifications. A 9V adapter exceeds the 7.0V upper limit and risks violating safe operating area - potentially triggering overvoltage protection or damaging internal MOSFETs.
What is the role of the DISC pin in shipping mode?
The DISC pin controls the battery discharge FET. Pulling DISC low for ≥6.6 seconds disables the FET, isolating the battery from SYS and reducing quiescent current to 65μA. This prevents self-discharge during storage and satisfies OEM shipping mode requirements without requiring I²C intervention.
Does MP2624GL-Z support USB PD input negotiation?
No. MP2624GL-Z implements USB Battery Charging Spec 1.2 (BC1.2) for legacy USB port detection and current limit selection (100/500/900mA), but lacks USB Power Delivery (PD) protocol stack or CC logic. It accepts only fixed 5V input and cannot negotiate higher voltages or currents via PD.
How is thermal regulation implemented during high-current charging?
MP2624GL-Z uses on-die thermal sensing to reduce charge current progressively as junction temperature rises above 125°C, maintaining safe operation without abrupt shutdown. Full thermal shutdown activates only at 184°C, providing robust margin for transient loads in thermally constrained layouts.
What NTC thermistor values are compatible with the NTC pin?
The NTC pin interfaces with standard 10kΩ NTC thermistors (e.g., Murata NCP15XH103D03RC) using a resistor divider from VNTC to NTC to AGND. The datasheet specifies voltage thresholds (70.9–47.9% of VNTC) corresponding to temperature windows - exact values depend on thermistor B-parameter and calibration.
MP2624GL-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 22-PowerVFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Battery Chemistry:
- Lithium Iron Phosphate
- Number of Cells:
- 1
- Current - Charging:
- -
- Programmable Features:
- Timer
- Fault Protection:
- Over Current, Over Voltage
- Charge Current - Max:
- 4.5A
- Battery Pack Voltage:
- 4.2V
- Voltage - Supply (Max):
- 7V
- Interface:
- I2C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 22-QFN (3x4)
MP2624GL-Z FAQ
1.How can I place an order for MP2624GL-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP2624GL-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 MP2624GL-Z reliable?
The price and inventory of MP2624GL-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP2624GL-Z is usually 5 days.
3.What payment methods are accepted for MP2624GL-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2624GL-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP2624GL-Z?
MP2624GL-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP2624GL-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 MP2624GL-Z?
For technical support, including MP2624GL-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2624GL-Z requirements.
6.How does Aetrix verify that MP2624GL-Z is sourced from the original manufacturer or authorized distributors?
All MP2624GL-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 MP2624GL-Z meets industry standards.
7.What is the process for return or replacement of MP2624GL-Z?
All MP2624GL-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP2624GL-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 MP2624GL-Z part is unused and in its original packaging.
Return procedure for MP2624GL-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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