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Analog Devices Inc./Maxim Integrated MAX77960BEFV06+
- Part No.:
- MAX77960BEFV06+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Special Purpose Regulators
- Package:
- 30-PowerUFQFN
- Datasheet:
-
MAX77960BEFV06+.pdf
- Description:
- 25VIN, 6AOUT USB-C PD BUCK-BOOST
- Quantity:
- Payment:
- Shipping:
Inventory:452
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Product details
Overview
The MAX77960BEFV06+ from Maxim Integrated is a wide-input (3.5V–25.4V), 3A buck-boost battery charger IC with integrated FETs, Smart Power Selector™, and reverse buck (USB OTG) capability. It supports 2S/3S Li-ion batteries, delivers up to 97% peak efficiency at 9VIN/7.4VOUT/1.5AOUT, and enables system instant-on from dead-battery or no-battery conditions in portable medical monitors and USB-C powered handheld radios.
For engineers reviewing the MAX77960BEFV06+ datasheet, MAX77960BEFV06+ pinout, MAX77960BEFV06+ application, or MAX77960BEFV06+ equivalent, key selection considerations include its programmable 100mA–3.15A input current limit, I²C/resistor configurability, JEITA-compliant NTC thermistor interface, 4mm × 4mm 30-pin FC2QFN package, and integrated 10mΩ BATT-to-SYS switch supporting up to 10A overcurrent threshold.
Technical Context
The MAX77960BEFV06+ implements a synchronous 4-switch buck-boost topology with dual independent gate drivers (BST1/LX1 and BST2/LX2), enabling seamless transition between buck, boost, and buck-boost modes across varying input and battery voltages. Its Smart Power Selector manages power path arbitration between CHGIN, BATT, and SYS rails without external components.
It integrates autonomous charging control via resistor-programmed pins (INLIM, ISET, VSET, ITO) and full I²C register access for dynamic configuration of charge profiles, thermal foldback, AICL, and JEITA compliance. The reverse buck mode operates at 5.1V/3A output with true load disconnect and adjustable current limiting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.5V to 25.4V - supports USB PD, automotive, and wide-range industrial adapters without external pre-regulation. |
| Max Charge Current | 3A constant current - programmable from 100mA to 3A via I²C or resistor network for precise battery safety compliance. |
| Reverse Buck Output | 5.1V/3A - powers USB OTG accessories directly without secondary inductor or external DC-DC stage. |
| Switching Frequency | 600kHz or 1.2MHz - selectable for optimal trade-off between efficiency, EMI, and inductor size in compact layouts. |
| Package | 4mm × 4mm, 30-pin FC2QFN - surface-mount footprint with exposed thermal pad for high-power density and thermal reliability. |
| JEITA Compliance | NTC thermistor monitoring with configurable trip points - ensures safe charging across temperature zones per JEITA standard. |
| Peak Efficiency | 97% at 9VIN/7.4VOUT/1.5AOUT (2S) - minimizes thermal stress and extends runtime in space-constrained devices. |
Pinout & Package
The MAX77960BEFV06+ is housed in a 4mm × 4mm, 30-pin FC2QFN package with exposed thermal pad (package code F304A4F+1), optimized for thermal dissipation in high-current portable applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CHGIN | Primary input power rail | Accepts 3.5V–25.4V input; includes OVLO (26.05V) and UVLO (3.5V) protection with 10μs response. |
| BATT | Battery connection node | Direct interface to 2S/3S Li-ion pack; supports differential voltage sensing (BATSP/BATSN) for accurate state-of-charge. |
| SYS | System power rail output | Regulated output powering host processor and peripherals; features Smart Power Selector for seamless source arbitration. |
| LX1, LX2 | Power switch nodes | Connect to external inductors; support synchronous 4-switch buck-boost operation with integrated high-side/low-side FETs. |
| ISET | Fast-charge current programming | Resistor-programmable pin setting CC charge current from 100mA to 3A; also accessible via I²C register. |
| THM | NTC thermistor input | Analog input for JEITA-compliant battery temperature monitoring; supports configurable trip thresholds per Table 3. |
| OTGEN | OTG enable control | Active-high signal enabling reverse buck mode; asserts INOKB when 5.1V/3A OTG output is stable. |
| STAT | Charge status indicator | 3-state open-drain output encoding charge state (precharge, CC, CV, done, fault) per Table 10. |
| INTB | Interrupt output | Active-low, open-drain interrupt signaling faults (thermal, OVP, OCP, JEITA violation) and status changes. |
| SCL/SDA | I²C serial interface | Standard 400kHz/1MHz I²C bus for full register read/write access, including real-time telemetry and dynamic reconfiguration. |
Key Features
| Feature | Design Value |
|---|---|
| Smart Power Selector™ | Enables system startup even with deeply discharged or missing battery by prioritizing CHGIN to SYS path while isolating BATT until safe. |
| Adaptive Input Current Limit (AICL) | Dynamically adjusts input current draw to prevent adapter overload or brownout, maintaining stable SYS voltage under variable source impedance. |
| True Load Disconnect in Reverse Buck | Guarantees zero current leakage to OTG port when disabled, meeting USB specification requirements for accessory safety. |
| Dual Switching Frequency Options | 600kHz or 1.2MHz selection allows optimization for low EMI (600kHz) or smaller magnetics (1.2MHz) without firmware change. |
| Factory Ship Mode | Reduces quiescent current to ≤5µA during logistics and storage, preventing battery drain before first power-up. |
Applications
| Medical Vital Sign Monitors | USB-C Powered Handheld Radios |
|---|---|
Use Scenario: Portable ECG and pulse oximetry units requiring continuous operation from 2S Li-ion with fast recharge between patient checks. IC Role / Device Role / Timing Role: Primary battery charger and system power manager with Smart Power Selector enabling instant-on from standby with depleted battery. Use Value: Eliminates cold-start failure; 97% efficiency at 1.5A reduces heat buildup near sensitive analog front-end circuitry. | Use Scenario: Ruggedized two-way radios using USB-C for both charging and data, needing reliable OTG power for Bluetooth headsets or GPS modules. IC Role / Device Role / Timing Role: Dual-role power IC providing regulated SYS rail and 5.1V/3A reverse buck output with true load disconnect. Use Value: Enables simultaneous charging and accessory power without external OTG controller or second inductor. |
| 2-in-1 Detachable Tablets | Drones with Hot-Swappable Batteries |
Use Scenario: Tablet docked to keyboard base with shared USB-C port for charging, data, and peripheral power. IC Role / Device Role / Timing Role: Buck-boost charger managing 3S battery and supplying SYS rail while enabling OTG to keyboard peripherals. Use Value: Single-chip solution replaces discrete charge + boost + OTG ICs, reducing BOM count and PCB area by >40%. | Use Scenario: Consumer drones requiring rapid battery swaps and in-flight USB-C accessory power (e.g., FPV camera feed). IC Role / Device Role / Timing Role: High-efficiency charger with JEITA-compliant thermal management and reverse buck for auxiliary 5V rail. Use Value: Prevents thermal shutdown during fast charging; 10mΩ BATT-to-SYS switch supports 10A peak current for motor surge demands. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck-boost charger applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BQ25792RTWR | Lower max input voltage (20V vs. 25.4V); no integrated reverse buck; requires external OTG controller. | Best suited for cost-sensitive 2S applications where USB OTG is optional and input sources are limited to 20V. | Select if OTG functionality is unnecessary and JEITA compliance is handled externally. |
| MP2731GQZ-0000-P | Higher charge current (4.5A vs. 3A); 2.5MHz switching; no Smart Power Selector-requires external path FETs for dead-battery startup. | Ideal for compact 2S designs needing faster charging but accepting added complexity for system power path control. | Choose when 3A charge current is insufficient and layout space allows discrete power-path FETs. |
Compared with BQ25792RTWR and MP2731GQZ-0000-P, the MAX77960BEFV06+ uniquely integrates Smart Power Selector, reverse buck, and JEITA thermistor interface in a single 4mm × 4mm package-reducing component count and enabling dead-battery instant-on without design compromises.
Availability
The MAX77960BEFV06+ is available at Aetrix Electronics and suitable for USB-C powered handheld radios, medical vital sign monitors, and 2-in-1 detachable tablets requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX77960BEFV06+ 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
Maxim Integrated, now part of Analog Devices, designs precision analog, mixed-signal, and power management ICs for demanding industrial, medical, and consumer applications.
The MAX77960B product line targets high-density portable electronics requiring integrated buck-boost charging, intelligent power path management, and USB OTG capability-optimized for space-constrained 2S/3S Li-ion systems.
FAQ
What is the maximum input voltage rating for the MAX77960BEFV06+?
The MAX77960BEFV06+ has an absolute maximum CHGIN voltage rating of +30VDC and operates continuously within 3.5V to 25.4V. This wide range supports USB PD 3.0, automotive 24V systems, and industrial adapters without external clamping or regulation. The device includes internal OVLO at 26.05V with 10μs response time to protect against transient overvoltage events.
Does the MAX77960BEFV06+ support charging from a dead battery condition?
Yes, the MAX77960BEFV06+ supports system startup with a dead or missing battery via its Smart Power Selector™. When CHGIN is present, the IC routes power directly from CHGIN to SYS while keeping the battery isolated until safe charging conditions are met. This enables instant-on behavior in devices like medical monitors and handheld radios without requiring backup capacitors or auxiliary power paths.
How is USB OTG functionality implemented in the MAX77960BEFV06+?
The MAX77960BEFV06+ implements USB OTG through its integrated reverse buck converter, delivering a regulated 5.1V/3A output without requiring an external inductor. Activation is controlled via the OTGEN pin or I²C register. The design includes true load disconnect, adjustable output current limiting, and INOKB assertion upon stable output-meeting USB specification requirements for accessory power negotiation and safety.
What thermal management features does the MAX77960BEFV06+ include?
The MAX77960BEFV06+ incorporates die temperature regulation via a thermal foldback loop that reduces charge current above 110°C junction temperature, plus hardware thermal shutdown at 150°C. It also supports JEITA-compliant charging using an external NTC thermistor on the THM pin, with configurable hot/cold zone thresholds. The 4mm × 4mm FC2QFN package provides θJA = 24.77°C/W on a four-layer board for robust thermal performance.
Can the MAX77960BEFV06+ be configured without I²C communication?
Yes, the MAX77960BEFV06+ supports fully autonomous operation using resistor networks on pins INLIM, ISET, VSET, and ITO to set input current limit, fast-charge current, termination voltage, and top-off current. Configuration pins accept standard 1% resistors; default values are established at power-up based on CNFG pin state. I²C remains available for dynamic reconfiguration but is not required for basic charging functionality.
MAX77960BEFV06+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 30-PowerUFQFN
- Packaging:
- Tray
- Product Status:
- Active
- Applications:
- Converter, USB, Digital Cameras
- Voltage - Input:
- 3.5V ~ 25.4V
- Number of Outputs:
- 1
- Voltage - Output:
- 8V ~ 13.05V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 30-FC2QFN (4x4)
MAX77960BEFV06+ FAQ
1.How can I place an order for MAX77960BEFV06+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX77960BEFV06+ 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 MAX77960BEFV06+ reliable?
The price and inventory of MAX77960BEFV06+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX77960BEFV06+ is usually 5 days.
3.What payment methods are accepted for MAX77960BEFV06+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX77960BEFV06+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX77960BEFV06+?
MAX77960BEFV06+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX77960BEFV06+ 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 MAX77960BEFV06+?
For technical support, including MAX77960BEFV06+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX77960BEFV06+ requirements.
6.How does Aetrix verify that MAX77960BEFV06+ is sourced from the original manufacturer or authorized distributors?
All MAX77960BEFV06+ 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 MAX77960BEFV06+ meets industry standards.
7.What is the process for return or replacement of MAX77960BEFV06+?
All MAX77960BEFV06+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX77960BEFV06+, 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 MAX77960BEFV06+ part is unused and in its original packaging.
Return procedure for MAX77960BEFV06+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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