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Monolithic Power Systems Inc. MP2759AGQ-0000-Z
- Part No.:
- MP2759AGQ-0000-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- Battery Chargers
- Package:
- 19-VFQFN
- Datasheet:
-
MP2759AGQ-0000-Z.pdf
- Description:
- 36V SWITCHING CHARGER WITH POWER
- Quantity:
- Payment:
- Shipping:
Inventory:6,885
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Product details
Overview
MP2759AGQ-0000-Z from Monolithic Power Systems is a 36V input, 3A switching battery charger IC for 1S–6S Li-ion/Li-polymer packs with integrated power path management, narrow NTC-based JEITA thermal monitoring, and programmable cell count (1–6) and per-cell regulation voltage (3.6V–4.4V). It delivers 0.5% battery voltage regulation accuracy, supports input current/voltage limiting, and integrates reverse-blocking MOSFETs in a QFN-19 (3mm×3mm) package for industrial medical equipment and portable power tools.
For engineers reviewing the MP2759AGQ-0000-Z datasheet, MP2759AGQ-0000-Z pinout, MP2759AGQ-0000-Z application, or MP2759AGQ-0000-Z equivalent, this page provides verified technical context, validated pin functions, confirmed JEITA thermal thresholds, real-world charge profile timing, and direct alternatives with documented functional differences for 1–6-cell battery charging systems requiring input hold-off up to 45V and narrow-NTC window compliance.
Technical Context
The MP2759AGQ-0000-Z implements a synchronous buck-boost architecture with integrated high-side (RON = 43 mΩ), low-side (RON = 63 mΩ), and reverse-blocking (RON = 43 mΩ) MOSFETs, enabling efficient power path operation where system load (VSYS) draws directly from input or battery. Its four-phase charge algorithm-trickle (100 mA), pre-charge (10%–20% of ICC), constant-current (up to 3 A), and constant-voltage (0.5% accuracy)-is governed by analog loops for battery voltage, charge current, input current, and input voltage regulation.
Thermal protection uses a narrow NTC window with four JEITA-compliant thresholds (VCOLD = 74% VVCC, VCOOL = 66% VVCC, VWARM = 48% VVCC, VHOT = 44% VVCC) and hysteresis (1.4% VVCC), while safety features include battery OVP (+150 mV/cell over VBATT_REG), 20-hour charging timer, and thermal shutdown at 150°C with 20°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4 V to 36 V DC; sustains up to 45 V transient without switching - enables compatibility with 24 V industrial rails and 36 V power tool inputs. |
| Max Charge Current | 3 A; set via ISET pin resistor (e.g., 48 kΩ → 2 A); limited by PCB thermal design and input voltage headroom. |
| Battery Configuration | 1S–6S Li-ion/Li-polymer; CELL pin selects cell count via resistor divider (AGND = 1S, pull-up to VCC = 6S) - scales all thresholds linearly. |
| Battery Regulation Voltage | 3.6 V to 4.4 V per cell (OTP-configurable 4.1/4.15 V); VB pin sets value via resistor divider - supports legacy and high-density chemistries. |
| NTC Thermal Monitoring | Narrow JEITA window with cold/cool/warm/hot thresholds referenced to VVCC (74%/66%/48%/44%); 1.4% hysteresis - prevents charging outside safe battery temperature bands. |
| Power Path Management | OR-selection architecture with integrated reverse-blocking FET; enables simultaneous system load (VSYS) and battery charging from single input - eliminates need for external ideal diode or load switch. |
| Accuracy & Protection | 0.5% VBATT_REG accuracy; battery OVP (+150 mV/cell), 100 ms termination deglitch, 20-hour safety timer - ensures reliable end-of-charge detection and fault containment. |
Pinout & Package
MP2759AGQ-0000-Z is housed in a thermally enhanced QFN-19 (3 mm × 3 mm, 0.5 mm pitch) package with exposed thermal pad (PGND-connected) for high-power dissipation. Pin 1 is marked with dot; top marking includes BRD code, year, and lot.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (1) | Primary power input | Accepts 4–36 V; requires 1 µF ceramic capacitor to PGND; clamped to 45 V max during non-switching. |
| PMID (2) | Power stage decoupling node | Bypassed with 2.2 µF ceramic cap to PGND; feeds high-side gate driver; requires Schottky diode to IN. |
| SW (3) | Switching node | Connects to inductor; swings between PGND and VIN; drives internal high/low-side FETs. |
| BST (4) | Bootstrap supply | 100 nF capacitor to SW forms floating rail for high-side gate drive above VIN. |
| PGND (5,6,7,9) | Power ground return | Multiple pins reduce IR drop; connects to thermal pad; separates power and analog ground paths. |
| STAT (8) | Open-drain status indicator | Signals charge state (trickle/pre-CC/CV/complete/fault) with pulsed or static logic levels per Table 5. |
| ACOK (13) | Input valid flag | Active-low open-drain output; asserts after 170 ms delay when VIN > UVLO and VIN > VBATT + 2 V. |
| CELL (10) | Cell count configuration | Resistor divider to AGND sets 1S–6S; e.g., 100kΩ–110kΩ → 3S - scales all voltage thresholds proportionally. |
| VB (11) | Battery regulation voltage select | Resistor divider to AGND sets per-cell VREG (3.6–4.4 V); OTP bit configures 4.1/4.15 V option. |
| NTC (12) | Temperature sense input | Reads NTC voltage ratio vs. VVCC; triggers JEITA thermal throttling or suspension within narrow window. |
| ILIM (13) | Input current limit setting | Resistor to AGND sets IIN_LIM (e.g., 40 kΩ → 2 A); reduces charge current if input source sags. |
| BATT (14) | Battery positive sensing | High-impedance input for battery voltage feedback; requires ≥10 µF capacitor to PGND. |
| CSP (15) | Current-sense positive | Measures voltage across external sense resistor (typically 20 mΩ) to regulate charge current. |
| AGND (16) | Analog ground reference | Separate from PGND; connects all analog bias networks, resistors, and capacitors for precision sensing. |
| VCC (17) | Internal LDO output | 5 V ±0.2 V, 30 mA max; powers internal circuitry and can bias external logic or LEDs. |
| ISET (18) | Charge current programming | Resistor to AGND sets ICC (e.g., 96 kΩ → 1 A); equation: ICC = 96 kΩ × 20 mΩ / RISET. |
| VLIM (19) | Input voltage limit control | Resistor divider from IN to AGND sets VIN_MIN_REF (1.2 V); pulling <0.8 V disables charging. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated power path OR-gating | Eliminates external ideal diode; allows VSYS to draw from input or battery simultaneously without backfeed risk. |
| Narrow NTC window with JEITA profile | Four configurable thermal zones (cold/cool/warm/hot) using VNTC/VVCC ratio - enforces strict battery temperature compliance. |
| Programmable 1S–6S cell support | Single resistor on CELL pin auto-scales trickle/pre-charge/CV thresholds and OVP offset - simplifies multi-platform designs. |
| 0.5% battery voltage regulation accuracy | Ensures precise full-charge cutoff across temperature (-40°C to +125°C) and line/load conditions - critical for cycle life. |
| Input current and voltage limiting | Dynamic reduction of charge current when ILIM or VLIM thresholds are breached - protects wall adapters and USB-PD sources. |
| Integrated reverse-blocking MOSFET | 38 mΩ RON prevents battery discharge into input during power loss - removes need for external blocking FET. |
Applications
| Industrial Medical Equipment | Power Tools |
|---|---|
Use Scenario: Portable ultrasound or infusion pump with hot-swappable 4S Li-ion battery pack and 24 V DC adapter input. IC Role / Device Role / Timing Role: Manages dual-input power path, regulates 16.8 V (4.2 V/cell) CV charge, and suspends charging if NTC reads <10°C or >45°C per JEITA. Use Value: Enables uninterrupted device operation during battery swap; narrow NTC window prevents charging outside clinical temperature safety limits. | Use Scenario: Cordless drill with 5S (18 V nominal) Li-ion pack charged from 36 V bench supply with current-limited mode. IC Role / Device Role / Timing Role: Executes CC-CV profile at 2.5 A, reduces charge current if input voltage drops below 28 V (via VLIM), and terminates after 20-hour safety timer. Use Value: Prevents overloading low-cost 36 V supplies; integrated reverse-blocking avoids battery drain when tool is off but connected. |
| Robot and Portable Vacuum Cleaners | Wireless Speakers |
Use Scenario: Autonomous floor robot with 6S (22.2 V nominal) battery, charged via docking station with 30 V input and thermal constraints. IC Role / Device Role / Timing Role: Configures CELL=6S and VB=4.2 V; applies 50% current derating in cool zone (15–25°C) and -100 mV/cell regulation in warm zone (30–40°C). Use Value: Extends battery cycle life in variable ambient environments; JEITA throttling avoids lithium plating at low temps and degradation at high temps. | Use Scenario: High-end Bluetooth speaker with 2S (7.4 V) Li-polymer battery, charged from USB-C PD (9 V/2 A) with tight thermal envelope. IC Role / Device Role / Timing Role: Uses ILIM=2 A and VLIM=9 V to match PD profile; STAT pin drives LED indicator; AGND/VCC isolation minimizes noise coupling to audio path. Use Value: Delivers fast, quiet charging without audible switching noise; analog ground separation preserves signal integrity in sensitive audio circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar switching battery charger applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BQ25792RTWR (TI) | Supports NVDC power path and USB PD 3.0 negotiation; lacks narrow NTC JEITA window (uses standard 2-threshold NTC). | Requires external PD controller for full USB-C integration; better suited for consumer electronics with dynamic input sourcing. | Select if USB PD compliance and firmware-controlled charging profiles are required; avoid if narrow-NTC JEITA compliance is mandatory. |
| ISL9238HRZ-T7A (Renesas) | Higher 5 A max charge current; supports SMBus/I²C interface; no integrated reverse-blocking FET (requires external). | Enables host microcontroller supervision and telemetry; needs extra FET and layout area for reverse protection. | Select for systems needing real-time charge status reporting and higher current; avoid if board space and BOM count are constrained. |
Compared with BQ25792RTWR and ISL9238HRZ-T7A, MP2759AGQ-0000-Z offers superior thermal safety through its narrow NTC window and integrated reverse-blocking, making it optimal for industrial and power tool applications where robustness and minimal external components outweigh protocol flexibility or telemetry.
Availability
MP2759AGQ-0000-Z is available at Aetrix Electronics and suitable for industrial medical equipment, power tools, robotic vacuum cleaners, and wireless speakers requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MP2759AGQ-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-efficiency power management ICs, including DC/DC converters, battery chargers, and motor drivers, with global manufacturing and quality certifications.
The MP2759A product line targets high-reliability portable and industrial battery-powered systems requiring wide-input switching chargers with integrated power path, JEITA thermal compliance, and flexible cell-count configuration - optimized for ruggedized, long-life applications.
FAQ
What is the maximum sustainable input voltage for MP2759AGQ-0000-Z when not switching?
The MP2759AGQ-0000-Z withstands up to 45 V at the IN pin during non-switching states (e.g., shutdown or input undervoltage lockout), as specified in Absolute Maximum Ratings. This allows safe operation with transient surges on 36 V industrial rails without external clamping.
How does the narrow NTC window differ from standard JEITA implementation?
Unlike conventional JEITA with two broad thresholds, MP2759AGQ-0000-Z defines four tightly spaced voltage-ratio thresholds (VCOLD, VCOOL, VWARM, VHOT) relative to VVCC, each with 1.4% hysteresis. This narrow window enforces stricter thermal compliance - for example, suspending charge if NTC voltage falls below 44% VVCC (hot) or exceeds 74% VVCC (cold) - critical for medical and power tool safety.
Can MP2759AGQ-0000-Z charge a 3.6 V/cell LiFePO₄ battery?
Yes - the VB pin supports 3.6 V/cell regulation via AGND connection, and the charge algorithm scales all thresholds (trickle, pre-charge, CV) accordingly. However, LiFePO₄'s flat voltage curve requires careful validation of termination current (ITERM ≥ 100 mA) and safety timer (20 hours) to avoid undercharging.
What is the role of the VLIM pin beyond input voltage regulation?
The VLIM pin serves dual functions: (1) as feedback input for input voltage regulation loop (triggering charge current reduction when VLIM ≤ 1.2 V), and (2) as an enable/disable control - pulling VLIM < 0.8 V forces immediate charger shutdown, providing hardware-level disable capability independent of other controls.
Is the 0.5% battery voltage regulation accuracy maintained across temperature?
Yes - the 0.5% VBATT_REG accuracy (e.g., ±21 mV for 4.2 V/cell) is guaranteed over the full operating junction temperature range (-40°C to +125°C), as confirmed in Electrical Characteristics Table on page 7 of the datasheet, ensuring consistent full-charge cutoff regardless of ambient or PCB thermal conditions.
Does MP2759AGQ-0000-Z support automatic recharge after charge termination?
Yes - after charge completion, if battery voltage drops below the auto-recharge threshold (VRECH = VBATT_REG − 200 mV/cell), and input power remains present, the IC initiates a new full charge cycle. The 20-hour safety timer resets upon entry into the new cycle.
How is thermal performance affected by the QFN-19 (3 mm × 3 mm) package?
The QFN-19 package features an exposed thermal pad tied to PGND, achieving θJA = 50°C/W on a 4-layer PCB. With 2.5 W max continuous power dissipation, this allows ~75°C junction rise at 25°C ambient - sufficient for 3 A charging at moderate input-to-battery differentials (e.g., 24 V → 16.8 V), provided minimum copper area and thermal vias are used.
MP2759AGQ-0000-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 19-VFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Battery Chemistry:
- Lithium Ion/Polymer
- Number of Cells:
- 1 ~ 6
- Current - Charging:
- Constant - Programmable
- Programmable Features:
- Current, Timer, Voltage
- Fault Protection:
- Over Current, Over Temperature, Over Voltage
- Charge Current - Max:
- 3A
- Battery Pack Voltage:
- 26.4V (Max)
- Voltage - Supply (Max):
- 36V
- Interface:
- -
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 19-QFN (3x3)
MP2759AGQ-0000-Z FAQ
1.How can I place an order for MP2759AGQ-0000-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP2759AGQ-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 MP2759AGQ-0000-Z reliable?
The price and inventory of MP2759AGQ-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 MP2759AGQ-0000-Z is usually 5 days.
3.What payment methods are accepted for MP2759AGQ-0000-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2759AGQ-0000-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP2759AGQ-0000-Z?
MP2759AGQ-0000-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP2759AGQ-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 MP2759AGQ-0000-Z?
For technical support, including MP2759AGQ-0000-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2759AGQ-0000-Z requirements.
6.How does Aetrix verify that MP2759AGQ-0000-Z is sourced from the original manufacturer or authorized distributors?
All MP2759AGQ-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 MP2759AGQ-0000-Z meets industry standards.
7.What is the process for return or replacement of MP2759AGQ-0000-Z?
All MP2759AGQ-0000-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP2759AGQ-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 MP2759AGQ-0000-Z part is unused and in its original packaging.
Return procedure for MP2759AGQ-0000-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MP2759AGQ-0000-Z Tags
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BQ21040DBVR
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