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Monolithic Power Systems Inc. MP2617BGL-Z
- Part No.:
- MP2617BGL-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- Battery Chargers
- Package:
- 20-PowerTFQFN
- Datasheet:
-
MP2617BGL-Z.pdf
- Description:
- IC BATT CHG LI-ION 1CELL 20QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,521
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Product details
Overview
MP2617BGL-Z from Monolithic Power Systems is a monolithic 3A synchronous buck switching charger IC with integrated NVDC (Narrow Voltage DC) power path management for single-cell Li-ion batteries. It delivers regulated SYS output voltage (4.08–4.4V programmable), supports dual-input USB/DC adapter, implements five independent control loops (input current/voltage limit, constant-current/constant-voltage battery charge, thermal foldback), and enables immediate system operation even with deeply discharged or absent battery. It is used in portable tablets and handheld devices requiring simultaneous system power delivery and battery charging.
For engineers reviewing the MP2617BGL-Z datasheet, MP2617BGL-Z pinout, MP2617BGL-Z application, or MP2617BGL-Z equivalent, this page provides verified technical context, validated pin functions, confirmed input current limit modes (USB2.0/USB3.0/default/programmable), exact battery full voltage (4.2V), and real-world power path behavior under input-limited conditions - all critical for USB-compliant portable power design.
Technical Context
The MP2617BGL-Z integrates a 1.6MHz fixed-frequency synchronous buck regulator with internal high-side (130mΩ) and low-side (100mΩ) NMOS switches, enabling direct conversion from 4–10V input to a regulated SYS rail while simultaneously managing battery charge current up to 3.025A. Its NVDC architecture decouples SYS and BATT rails via an internal 40mΩ ideal diode switch, allowing priority-based load powering and seamless battery supplementation when input power is insufficient or removed.
Five closed-loop controls operate concurrently: average input current limit (programmable up to 3A via ILIM resistor or M0/M1 logic), input voltage clamp (via VLIM pin), constant-charge-current (set by ISET resistor), terminal battery voltage regulation (4.2V ±21mV), and thermal foldback (120°C activation). The device uses fixed off-time control with BST bootstrap for gate drive and includes dedicated open-drain status pins (CHGOK, ACOK) for system-level monitoring.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.0V to 10.0V - Supports USB 5V and wide-range DC adapters without external LDO pre-regulation. |
| Max Charge Current | 3.025A at RISET = 760Ω - Enables fast charging of 2000–3000mAh Li-ion cells within thermal limits. |
| Battery Full Voltage | 4.20V ±21mV - Matches standard single-cell Li-ion termination threshold; differs from MP2617A's 4.35V. |
| Switching Frequency | 1.6MHz typical - Allows use of compact 1.2µH inductors and reduces EMI filtering burden. |
| Input Current Limit Modes | USB2.0 (450mA), USB3.0 (825mA), Default (2A), Programmable (up to 3A via ILIM) - Ensures strict compliance with host port specifications. |
| Thermal Regulation | 120°C foldback, 150°C shutdown - Protects silicon integrity during sustained high-power operation in confined enclosures. |
| Package | QFN-20 (3mm × 4mm, 0.5mm pitch) - Surface-mount footprint optimized for space-constrained portable PCBs. |
Pinout & Package
MP2617BGL-Z is housed in a thermally enhanced QFN-20 package (3mm × 4mm, 0.5mm pitch) with exposed thermal pad (PGND-connected) for efficient heat dissipation in high-current charging applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 BST | Bootstrap supply | Connects external capacitor between BST and SW to generate gate drive voltage > IN for high-side NMOS. |
| 3 IN | Main power input | Accepts 4–10V from USB or DC adapter; feeds buck converter and triggers ACOK when valid. |
| 2,4 SW | Power switch node | Drives external inductor; connects to BST capacitor and internal HS/LS FETs. |
| 5 PGND | Power ground | High-current return path for buck converter and battery discharge; tied to thermal pad. |
| 6 EN | Enable control | Active-low logic input; pulls device into ultra-low-quiescent (3µA) shutdown when high. |
| 7 M0 / 8 M1 | Input current mode select | Logic pair sets USB2.0/USB3.0/programmable/default input current limit without resistor network. |
| 9 CHGOK | Charge status indicator | Open-drain output pulled low during charging; high (via external pull-up) indicates full-charge completion. |
| 10 ACOK | Input power presence | Open-drain output pulled low when valid IN voltage detected (>3.8V and >VBATT+280mV). |
| 12 SYSFB | System output voltage feedback | Resistor divider from SYS to AGND programs VSYS from 4.08V to 4.4V; float disables programming. |
| 13 SYS | Regulated system output | Delivers power to host system load; dynamically tracks VBATT (VBATT+0.2V) above 3.4V or holds 3.6V below. |
| 14 BATT | Battery positive terminal | Connects directly to Li-ion cell anode; internal 40mΩ ideal diode enables battery-to-SYS power supplement. |
| 15 ISET | Charge current programming | Resistor to AGND sets ICC (e.g., 760Ω = 3.025A); floating disables charging. |
| 16 NTC | Battery temperature monitor | Reads NCP18XH103F-type thermistor; triggers charge suspension outside 0°C–50°C range. |
| 17 ILIM | Adapter input current limit | Resistor to AGND programs input current limit up to 3A; overridden by M0/M1 in USB modes. |
| 19 VLIM | Input voltage clamp reference | Resistor divider from IN sets clamp threshold (e.g., 1.52V reference enables safe adapter overvoltage protection). |
Key Features
| Feature | Design Value |
|---|---|
| Integrated power switches | Eliminates need for external MOSFETs, blocking diodes, or current-sense resistors - reduces BOM count and layout area. |
| NVDC power path | Enables system operation with zero battery voltage and automatic battery supplementation during peak SYS load transients. |
| Five concurrent control loops | Guarantees USB compliance, prevents adapter overload, maintains battery health, avoids thermal runaway, and ensures stable SYS regulation. |
| Programmable SYS output | Adjusts system rail from 4.08V to 4.4V via external resistor divider on SYSFB - matches SoC VDD requirements without LDO post-regulation. |
| Dual-mode input current limit | Hardware-selectable (M0/M1) or resistor-programmable (ILIM) input current limiting - simplifies firmware-free USB port adaptation. |
| Battery safety monitoring | Combines NTC thermistor interface, 2.4V–2.8V battery UVLO, 4.2V precise CV termination, and 120°C thermal foldback. |
Applications
| Tablet PC | Smartphone |
|---|---|
|
Use Scenario: Dual-role portable device requiring instant boot from dead battery and fast charging via USB-C or barrel adapter. IC Role / Device Role / Timing Role: Primary switching charger with NVDC power path - supplies SYS rail to application processor while concurrently charging Li-ion cell. Use Value: Enables "instant-on" user experience and USB3.0-compliant 825mA charging without compromising system stability during high-CPU-load scenarios. |
Use Scenario: Compact mobile phone with tight thermal envelope and dual-input (USB + wireless receiver) power architecture. IC Role / Device Role / Timing Role: Single-chip power management unit handling input selection, SYS regulation, battery charge control, and thermal supervision. Use Value: Reduces solution size by integrating 3A buck, ideal diode, and battery safety logic - eliminates discrete PMIC + charger + fuel gauge combo. |
| E-Book Reader | Portable Media Player |
|
Use Scenario: Low-power e-ink display device needing long standby time, reliable trickle charge, and USB2.0-safe 450mA input. IC Role / Device Role / Timing Role: Battery charge controller with programmable trickle threshold (3.0V) and 45-min trickle timer - prevents lithium plating on aged cells. Use Value: Extends battery cycle life in infrequently charged devices by enforcing safe low-voltage preconditioning before CC/CV stages. |
Use Scenario: High-fidelity audio player with burst-mode DSP processing causing dynamic SYS load spikes exceeding adapter capability. IC Role / Device Role / Timing Role: Intelligent power router - prioritizes SYS load, draws supplemental current from BATT via 40mΩ switch when IN is insufficient. Use Value: Prevents audio dropout or system reset during playback peaks by enabling seamless battery-to-SYS power handoff without software intervention. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar single-cell Li-ion switching charger applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BQ25601RTWR | Lower max charge current (3A vs. 3.025A); no integrated SYS-to-BATT ideal diode; requires external BATFET for NVDC. | Lacks native power-path arbitration - needs additional IC or discrete FET for battery supplementation during input dropouts. | Select when BOM cost sensitivity outweighs board space constraints and autonomous power-path behavior is non-critical. |
| SP2617BGL-Z | Not a valid part number - no Monolithic Power Systems product with this prefix; likely confusion with MP2617BGL-Z. | N/A - invalid alternative. | Avoid; verify manufacturer part numbering before sourcing - only MP2617BGL-Z is qualified and documented. |
Compared with BQ25601RTWR, MP2617BGL-Z delivers higher integration (no external BATFET needed), tighter battery full voltage tolerance (±21mV vs. ±50mV), and hardware-configurable USB current limits - reducing firmware dependency and improving USB compliance robustness in mass-produced portable devices.
Availability
MP2617BGL-Z is available at Aetrix Electronics and suitable for tablet PC, smartphone, and portable media player designs requiring stable component supply, guaranteed long-term manufacturability, and RoHS-compliant packaging.
Supply support for MP2617BGL-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 core expertise in DC-DC conversion, battery management, and motor control solutions.
The MP2617 series belongs to MPS's portable battery charger product line, engineered specifically for space-constrained, dual-input (USB + adapter) consumer electronics that demand simultaneous system power delivery and intelligent battery charging with minimal external components.
FAQ
What is the exact battery full voltage threshold for MP2617BGL-Z?
The MP2617BGL-Z regulates terminal battery voltage to 4.20V ±21mV under constant-voltage (CV) charge mode. This value is factory-trimmed and differs from the MP2617AGL-Z's 4.35V specification. It is measured with VBATT > VRECH (4.0V) and ICHG ≤ IBF, and remains stable across temperature and load conditions per datasheet Rev. 1.24 Section 7.
How does the MP2617BGL-Z handle input power loss during system operation?
Upon input removal (IN < 3.65V), ACOK goes high, and the internal 40mΩ BATT-to-SYS switch turns on, allowing the battery to power the SYS rail without interruption. The device maintains SYS regulation at VBATT – 65mV (ideal diode mode) and continues supplying system load until battery UVLO (2.4V) is reached - ensuring zero-system-reset operation.
Can MP2617BGL-Z be configured for USB2.0 compliance without external resistors?
Yes. Setting M0 = LOW and M1 = LOW configures the device for USB2.0 mode with a guaranteed 400–500mA input current limit (typical 450mA). No ILIM resistor or SYSFB divider is required - the logic pins directly select the internal current-sense reference, eliminating calibration overhead.
What is the maximum supported inductor value for MP2617BGL-Z at 3A charge current?
The datasheet specifies optimal operation with a 1.2µH shielded inductor (e.g., TDK SPM5030). While not explicitly rated for higher values, using >2.2µH risks violating peak current limit (4.8A) during startup or low-VIN conditions, potentially triggering premature current-limit mode and reducing effective charge current below 3A.
Does MP2617BGL-Z support battery temperature monitoring with standard NTC thermistors?
Yes. It interfaces directly with NCP18XH103F (10kΩ @ 25°C, B=3380K) thermistors. The NTC pin reads voltage divided between VCC and ground through the thermistor; thresholds are set at 65%VCC (0°C) and 33.5%VCC (50°C), with hysteresis to prevent oscillation near trip points.
Is the SYS output voltage adjustable below 4.08V on MP2617BGL-Z?
No. The programmable SYS range is strictly 4.08V to 4.4V when using the SYSFB resistor divider. Below 4.08V, the device defaults to its internal regulation scheme: 3.6V when VBATT ≤ 3.4V, or VBATT + 0.2V when VBATT > 3.4V. There is no method to set SYS to, e.g., 3.3V or 2.8V.
What happens if the ISET resistor is omitted from MP2617BGL-Z?
Omitting the ISET-to-AGND resistor disables battery charging entirely. The charger enters high-impedance state on the BATT rail, and CHGOK remains high (open-drain inactive). SYS output continues operating normally from IN, but no current flows into the battery - useful for system-only power delivery mode.
MP2617BGL-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 20-PowerTFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Battery Chemistry:
- Lithium Ion
- Number of Cells:
- 1
- Current - Charging:
- Constant - Programmable
- Programmable Features:
- Timer
- Fault Protection:
- Over Temperature
- Charge Current - Max:
- -
- Battery Pack Voltage:
- 4.2V
- Voltage - Supply (Max):
- 10V
- Interface:
- USB
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-QFN (3x4)
MP2617BGL-Z FAQ
1.How can I place an order for MP2617BGL-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP2617BGL-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 MP2617BGL-Z reliable?
The price and inventory of MP2617BGL-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP2617BGL-Z is usually 5 days.
3.What payment methods are accepted for MP2617BGL-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2617BGL-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP2617BGL-Z?
MP2617BGL-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP2617BGL-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 MP2617BGL-Z?
For technical support, including MP2617BGL-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2617BGL-Z requirements.
6.How does Aetrix verify that MP2617BGL-Z is sourced from the original manufacturer or authorized distributors?
All MP2617BGL-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 MP2617BGL-Z meets industry standards.
7.What is the process for return or replacement of MP2617BGL-Z?
All MP2617BGL-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP2617BGL-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 MP2617BGL-Z part is unused and in its original packaging.
Return procedure for MP2617BGL-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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