Products
MAX77976
PRODUCTION19VIN, 3.5/5.5A 1-Cell Li+ Battery Charger with Smart Power Selector and OTG for USBC PD
Industry's Highest-Efficiency Buck Charger for USB Type-C Power Delivery Applications
- Part Models
- 2
- 1ku List Price
- price unavailable
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Part Details
- High-Efficiency Single-Cell Switching Charger
- Up to 5.5A Charging with MAX77976
- 91.2% Buck Efficiency at 4A, 12V Input
- 90.5% Charging Efficiency at 3.5A, 9V Input
- Optimized for High Voltage Input Operation
- Accelerate Charge Time by Monitoring Kelvin Sensing Battery Voltage
- Up to 3.2A Input Current Limit with AICL
- +28V Absolute Maximum Input Voltage Rating
- 4.7V to 19V Input Operating Voltage Range
- Reverse Boost with Programmable Output Voltage Options up to 12V
- Up to 18W for MAX77976
- Up to 12W for MAX77975
- Integrated Battery True-Disconnect FET
- RDSON = 7.7mΩ
- Discharge Current up to 10A
- Support Shipping Mode and Low Battery Leakage Current
- 1.3MHz/2.6MHz Switching Frequency with 1μH/0.47μH Inductor
- Disconnect Input (DISQBAT)
- Safety
- Battery Temperature Sensing and Charge Safety Timer
- JEITA Guideline Compliant
- Thermal Regulation and Thermal Shutdown
- System Voltage OVLO/UVLO
- Charge Status Output for LED
- Push-Button Input for Exiting from Ship Mode
- External Discharge FET Enable Output
- Dedicated Input for Suspend Mode (SUSPND)
- I2C Interface
- 4mm x 4mm FC2QFN
The MAX77976 remains in production, however, for new projects, we recommend MAX77986. The migration guide to move from MAX77976 to MAX77986 is provided under the Documentation & Resources section below.
The MAX77975/MAX77976 is a high-performance high-input 3.5/5.5A fast charger with Smart Power SelectorTM. The IC can operate as a reverse boost without an additional inductor, allowing the battery to share its power through the charging port and is voltage programmable from 5V to 12V. The device features fully integrated low-loss power switches to provide small solution size and high-efficiency, even at high input voltage and high charging current. Its high switching frequency allows the use of a smaller sized inductor. The IC features true load disconnection in reverse boost mode and has an adjustable output current protection limit. The device is highly flexible and programmable through I2C configuration.
The battery charger includes a Smart Power Selector to accommodate a wide range of battery sizes and system loads. The Smart Power Selector allows the system to start-up gracefully as soon as an input source is available, even when the battery is deeply discharged (dead battery) or missing. It can be configured so that when power is applied to the charger input, the battery charging can automatically start.
Applications
- Gaming Devices
- VR Applications
- mPOS
- Tablet PCs
There is a newer version of this part available
19VIN, 3.5/5.5A 1-Cell Li+ Battery Charger with Smart Power Selector and OTG for USBC PD
There is a newer version of this part available
19VIN, 3.5/5.5A 1-Cell Li+ Battery Charger with Smart Power Selector and OTG for USBC PD
Documentation
Data Sheet 1
Technical Articles 1
Spec Notice 1
Device Drivers 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX77976EFD+ | 23-LFCSP-4X4X0.55 | ||
| MAX77976EFD+T | 23-LFCSP-4X4X0.55 |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jul 21, 2021 - 2169 ELECTRICAL DATASHEET |
||
| MAX77976EFD+ | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Device Drivers 1
Evaluation Software 0
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| USB Charger Detectors 1 | ||
| MAX77958 | PRODUCTION | Standalone USB Type-C and USB Power Delivery Controller |
Tools & Simulations
LTpowerCAD
Design tools for the following parts are available in LTpowerCAD:
Software Development 2
Evaluation Kits
Evaluation Kit for the MAX77975/MAX77976/MAX77958
Resources
Evaluation Kit for the MAX77975/MAX77976/MAX77958
Resources
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