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Analog Devices Inc./Maxim Integrated MAX14680EWC+T
- Part No.:
- MAX14680EWC+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Battery Management
- Package:
- 12-WFBGA, WLBGA
- Datasheet:
-
MAX14680EWC+T.pdf
- Description:
- IC BATT SWITCH BIDIR 12WLP
- Quantity:
- Payment:
- Shipping:
Inventory:868
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Product details
Overview
MAX14680EWC+T from Maxim Integrated is a bidirectional battery switch IC with reverse-current blocking, ultra-low 7mΩ (typ) RON, +2.3V to +5.5V operating voltage range, and active-high enable logic. It isolates battery packs from system loads in portable electronics, enabling safe hot-swap and power-path control in high-capacity Li-ion applications.
For engineers reviewing the MAX14680EWC+T datasheet, MAX14680EWC+T pinout, MAX14680EWC+T application, or MAX14680EWC+T equivalent, key selection criteria include bidirectional conduction capability, slew-rate controlled switching for large load capacitance, low quiescent current (1µA typ), and WLP package thermal performance under high-current transient conditions.
Technical Context
The MAX14680EWC+T integrates a single N-channel MOSFET-based bidirectional switch with internal pulldown resistor (500–700kΩ) on its EN input and logic buffer circuitry. Its reverse-blocking architecture prevents backflow from either PWRA or PWRB when disabled, supporting true battery isolation in dual-power-path systems.
It operates across -40°C to +85°C with 73°C/W junction-to-ambient thermal resistance in its 12-bump WLP package. Turn-on/off times are 3ms (typ) with 100Ω load, and RON remains stable over temperature (-40°C to +85°C) and supply voltage (2.3V–5.5V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 7mΩ (typ) at 4.2V, 100mA - enables <10mV drop at 1.4A, minimizing power loss in battery-disconnect paths |
| Supply Voltage Range | +2.3V to +5.5V - supports full Li-ion battery voltage range including depleted and fully charged states |
| Enable Logic Polarity | Active-high EN - simplifies interface with standard GPIOs without external inverters |
| Quiescent Current | 1µA (typ) - extends battery shelf life during system standby or shutdown modes |
| Turn-On/Off Time | 3ms (typ) - provides controlled slew rate to limit inrush current into large load capacitors |
| Operating Temperature | -40°C to +85°C - qualified for extended industrial and consumer portable device environments |
| Package Thermal Resistance | 73°C/W (θJA) - allows ~1.1W continuous dissipation at +70°C ambient before derating |
Pinout & Package
MAX14680EWC+T uses a 12-bump Wafer-Level Package (WLP), 1.3mm × 1.7mm, 0.4mm pitch, with bumps on bottom side. The package is lead(Pb)-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PWRA | Power I/O (Bidirectional) | Primary power terminal; connects to system-side rail or charger output; handles bidirectional current flow |
| PWRB | Power I/O (Bidirectional) | Battery-side terminal; connects directly to Li-ion pack; reverse-blocking prevents battery discharge into system when off |
| EN | Active-High Enable Input | Drives switch ON when ≥1.6V; internally pulled down via 500–700kΩ resistor for default OFF state |
| GND | Ground Reference | Common return path for control logic and power FET body; must be low-impedance connection to minimize noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low RON | 7mΩ typical enables <15mW conduction loss at 1.5A, reducing thermal stress in space-constrained layouts |
| Bidirectional reverse blocking | Prevents current flow from PWRA to PWRB or PWRB to PWRA when disabled - critical for battery safety and charge path isolation |
| Integrated EN pulldown | 500–700kΩ internal resistor ensures reliable default-OFF behavior without external components |
| Slew-rate controlled switching | 3ms turn-on/off limits di/dt to suppress EMI and avoid voltage droop on shared rails during hot-swap events |
| Compact WLP footprint | 1.3mm × 1.7mm area saves >60% board space vs. comparable SOT-23 or DFN packages |
Applications
| Smartphone Battery Switch | Tablet PC Power Path |
|---|---|
Use Scenario: Isolating main Li-ion battery during USB-C charging to prevent parasitic discharge and enable simultaneous system operation. IC Role / Device Role / Timing Role: Bidirectional battery disconnect switch with reverse-current blocking and active-high enable synchronized to PMIC charge-state signals. Use Value: Eliminates need for external MOSFET + gate driver + pull-down resistor, reducing BOM count by 4 components and layout area by 2.1mm². |
Use Scenario: Managing dual-input power (AC adapter + battery) while preventing backfeed and supporting seamless switchover. IC Role / Device Role / Timing Role: System-level power-path controller that blocks battery-to-adapter current and enforces unidirectional energy flow per charging state. Use Value: Enables 95%+ power efficiency in battery-disconnect mode due to sub-10mΩ RON, minimizing heat generation during sustained 2A load conditions. |
| Battery Isolator for IoT Devices | Portable Medical Monitor Power Control |
Use Scenario: Preserving battery charge during long-term storage or firmware updates by cutting all leakage paths between battery and MCU subsystems. IC Role / Device Role / Timing Role: Low-leakage isolation switch activated only during boot or wake-up sequences; remains OFF during deep sleep. Use Value: Achieves ≤1µA total system shutdown current - extending 2000mAh battery shelf life from 6 months to >24 months. |
Use Scenario: Safely disconnecting medical-grade Li-ion battery during patient-coupled sensor calibration to eliminate risk of unintended current injection. IC Role / Device Role / Timing Role: Certified-safe power gate with guaranteed reverse-blocking and fail-safe OFF default via integrated EN pulldown. Use Value: Meets IEC 60601-1 creepage/clearance requirements through monolithic WLP construction and absence of external high-voltage routing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional battery switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX14634EWC+T | Active-low EN input; identical RON, voltage range, and package; shares same bump map except EN polarity | Requires inverted control signal; not drop-in compatible with MAX14680EWC+T without logic-level adjustment | Select when host MCU GPIO is open-drain or when system design already uses active-low enable architecture |
| TPL7407LPGEDR | 7-channel low-side driver; higher RON (150mΩ min), no reverse blocking, requires external FET for bidirectional use | Not suitable for battery isolation; limited to unidirectional load switching with external components | Only consider for non-isolation, low-current peripheral control where cost-per-channel is prioritized over integration |
Compared with MAX14634EWC+T and TPL7407LPGEDR, the MAX14680EWC+T uniquely delivers integrated bidirectional blocking, sub-10mΩ RON, and active-high enable in a 1.3mm × 1.7mm WLP - enabling single-component battery isolation without layout or firmware changes required for polarity inversion.
Availability
MAX14680EWC+T is available at Aetrix Electronics and suitable for smartphone battery switches, tablet PC power-path management, and portable medical monitor power control requiring stable component supply and long-term lifecycle support.
Supply support for MAX14680EWC+T 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 industrial, automotive, and portable applications.
The MAX14634/MAX14680 product line targets space-constrained portable devices requiring robust, integrated battery isolation with minimal external components and guaranteed reverse-current blocking.
FAQ
What is the maximum continuous current rating for MAX14680EWC+T?
The MAX14680EWC+T does not specify a maximum continuous current in its datasheet. Its current handling is thermally limited: at +70°C ambient, it supports up to ~1.1W power dissipation, translating to ~1.4A at 7mΩ RON. Derating is required above +70°C using its 13.7mW/°C thermal coefficient. Actual current capability depends on PCB copper area and airflow. MAX14680EWC+T must be used within its absolute maximum ratings and thermal constraints to ensure reliability.
Does MAX14680EWC+T support reverse-voltage protection on PWRA or PWRB?
No, MAX14680EWC+T does not provide reverse-voltage protection. It offers reverse-*current* blocking - meaning it prevents current flow from one terminal to the other when disabled - but does not clamp or regulate negative voltages applied to PWRA or PWRB. Absolute maximum ratings specify -0.3V minimum on these pins. External TVS or series diodes are required for true reverse-voltage tolerance. This behavior is inherent to the MAX14680EWC+T's internal FET architecture.
Can MAX14680EWC+T be used in parallel to increase current capacity?
No, MAX14680EWC+T is not designed for parallel operation. Its RON mismatch and lack of current-sharing control circuitry make paralleling unreliable and potentially unsafe. Uneven current distribution could cause thermal runaway in one device. For higher current needs, select a discrete FET solution with matched characteristics or a higher-rated integrated switch. MAX14680EWC+T should be used individually per power path.
Is the EN pin of MAX14680EWC+T 5V-tolerant?
Yes, the EN pin of MAX14680EWC+T is 5V-tolerant. Its absolute maximum rating specifies -0.3V to +6V, and VIH is defined at 1.6V minimum. It can be driven directly from 3.3V or 5V logic without level shifting. However, exceeding 5.5V on PWRA/PWRB or applying >6V to EN violates absolute maximum ratings and may damage MAX14680EWC+T. Always reference GND for all voltage measurements.
How does MAX14680EWC+T differ from MAX14634EWC+T beyond enable polarity?
MAX14680EWC+T and MAX14634EWC+T share identical electrical specifications - same RON, voltage range, quiescent current, thermal performance, and package - differing only in EN logic polarity (active-high vs. active-low) and top-mark code (ACV vs. ACO). Their bump maps are identical except for EN function assignment. No other functional or parametric differences exist between MAX14680EWC+T and MAX14634EWC+T per Maxim's official datasheet Rev 2.
MAX14680EWC+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 12-WFBGA, WLBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Power Management
- Battery Chemistry:
- -
- Number of Cells:
- -
- Fault Protection:
- Reverse Current
- Interface:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-WLP
MAX14680EWC+T FAQ
1.How can I place an order for MAX14680EWC+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX14680EWC+T 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 MAX14680EWC+T reliable?
The price and inventory of MAX14680EWC+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX14680EWC+T is usually 5 days.
3.What payment methods are accepted for MAX14680EWC+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX14680EWC+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX14680EWC+T?
MAX14680EWC+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX14680EWC+T 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 MAX14680EWC+T?
For technical support, including MAX14680EWC+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX14680EWC+T requirements.
6.How does Aetrix verify that MAX14680EWC+T is sourced from the original manufacturer or authorized distributors?
All MAX14680EWC+T 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 MAX14680EWC+T meets industry standards.
7.What is the process for return or replacement of MAX14680EWC+T?
All MAX14680EWC+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX14680EWC+T, 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 MAX14680EWC+T part is unused and in its original packaging.
Return procedure for MAX14680EWC+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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