MAX8677A
PRODUCTION1.5A Dual-Input, USB/AC Adapter Charger and Smart Power Selector
Optimized Smart Power control maximizes charger rate from USB/AC-adapter power while supporting system load
- Part Models
- 2
- 1ku List Price
- Starting From $3.60
Overview
- Complete Charger and Smart Power Selector
- No External MOSFETs Required
- Common or Separate USB and Adapter Inputs
- System Operates with Discharged or No Battery
- Automatic Adapter/USB/Battery Switchover
- Load Peaks Over Adapter Rating Are Supported by Battery
- Input Overvoltage Protection to 16V
- 40mΩ System-to-Battery Switch
- Thermal Regulation Prevents Overheating
- Active-Low CHG, Active-Low DOK, Active-Low UOK, and Active-Low FLT Indicators
- 5.3V (typ) SYS Regulation Voltage
The MAX8677A is an integrated 1-cell Li+ charger and Smart Power Selector™ with dual (DC and USB) power inputs. It can operate with either separate inputs for USB and AC adapter power*, or from a single input that accepts both. All power switches for charging and switching the load between battery and external power are included on-chip. No external MOSFETs are required.
The MAX8677A features a Smart Power Selector to make the best use of limited USB or adapter power. The battery charge current and input current limit are independently set up to 1.5A and 2A, respectively. Input power not used by the system charges the battery. USB input current can be set to 100mA or 500mA. Automatic input selection switches the system load from battery to external power.
Other features include overvoltage protection (OVP), charge status and fault outputs, power-OK monitors, charge timer, and battery thermistor monitor. Additionally, on-chip thermal limiting reduces the battery charge rate to prevent overheating. The MAX8677A is available in a 4mm x 4mm, 24-pin TQFN-EP package.
Applications
- Digital Cameras
- GPS Navigation
- PDAs, Palmtops, and Wireless Handhelds
- Portable Media/MP3 Players
- Smart Cell Phones
Documentation
Data Sheet 1
Technical Articles 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 |
|---|---|---|---|
| MAX8677AETG+ | 24-TQFN-4X4X0.75 | ||
| MAX8677AETG+T | 24-TQFN-4X4X0.75 |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Battery Charger ICs 7 | ||
| MAX8677C | PRODUCTION | 1.5A Dual-Input USB/AC Adapter Charger and Smart Power Selector |
| MAX8934A | PRODUCTION | Dual-Input Linear Chargers, Smart Power Selector with Advanced Battery Temperature Monitoring |
| MAX8934B | PRODUCTION | Dual-Input Linear Chargers, Smart Power Selector with Advanced Battery Temperature Monitoring |
| MAX8934C | PRODUCTION | Dual-Input Linear Chargers, Smart Power Selector with Advanced Battery Temperature Monitoring |
| MAX8934D | PRODUCTION | Dual-Input Linear Chargers, Smart Power Selector with Advanced Battery Temperature Monitoring |
| MAX8934G | PRODUCTION | Dual-Input Linear Charger, Smart Power Selector with Advanced Battery Temperature Monitoring |
| MAX8934E | PRODUCTION | Dual-Input Linear Chargers, Smart Power Selector with Advanced Battery Temperature Monitoring |
Evaluation Kits
MAX8677A Evaluation Kit
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