MAX8814
PRODUCTION28V Linear Li+ Battery Charger with Smart Autoboot Assistant
The Simplest, Safest, and Smallest Charging Solution for Handheld Equipment
- Part Models
- 2
- 1ku List Price
- Starting From $2.53
Overview
- Reduces External Components and Total Cost
- Integrated Current-Sensing Circuit, MOSFET Pass Element, and Thermally Regulation Circuitry
- No Reverse Blocking Diode Required
- Guarantees Safe and Accurate Battery Charging
- Proprietary Die Temperature Regulation Control (+115°C) Allows Maximum Charging Current Without Damaging the IC
- 4.25V to 28V Input Voltage Range with Over-Voltage Protection Above +7V to Protect Against Unqualified or Faulty AC Adapters
- Soft-Start Limits Inrush Current
- Integrated System Features for Compact Designs
- Programmable Fast-Charge Current: 1ARMS Max
- Charge-Current Monitor for Fuel Gauging (ISET)
- Input Power-Source Detection Output (Active-Low POK) and Charge-Enable Input (Active-Low EN)
- Output for Autobooting (ABO)
- Reduce Power Dissipation
- Low Dropout Voltage (300mV at 500mA)
The MAX8814 intelligent, stand-alone constant-current, constant-voltage (CCCV), thermally regulated linear charger is designed for charging a single-cell lithium-ion (Li+) battery.
The MAX8814 controls the charging sequence from the prequalification state through constant-current fast-charge and the final constant voltage charge. The IC achieves high flexibility by providing an adjustable fast-charge current through an external resistor. It also features a booting assistant circuit that distinguishes input sources and battery connection, and provides an output signal (ABO) for system booting.
The device operates over the extended temperature range (-40°C to +85°C), and is available in an 8-pin thermally enhanced 2mm x 2mm TDFN package (0.8mm max height).
Applications
- Bluetooth® Equipment
- Cellular and Cordless Phones
- Charging Cradles and Docks
- Digital Still Cameras
- MP3 Players
- Smartphones and PDAs
- USB Appliances
Documentation
Data Sheet 1
Design Note 2
Technical Articles 2
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 |
|---|---|---|---|
| MAX8814ETA+ | Thin Dual Flatpack No Leads, Exposed Pad | ||
| MAX8814ETA+T | Thin Dual Flatpack No Leads, Exposed Pad |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Apr 20, 2026 - 2571D PIN/ERRATA |
||
| MAX8814ETA+T | PRODUCTION | |
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 4 | ||
| MAX1898 | PRODUCTION | Linear Charger for Single-Cell Li+ Battery |
| MAX1501 | PRODUCTION | Highly Integrated, Linear Battery Charger with Thermal Regulation for Portable Applications |
| MAX1508 | PRODUCTION | Linear Li+ Battery Charger with Integrated Pass FET, Thermal Regulation, and ACOK Flag in 3mm x 3mm TDFN |
| MAX1507 | PRODUCTION | Linear Li+ Battery Charger with Integrated Pass FET and Thermal Regulation in 3mm x 3mm Thin DFN |
Evaluation Kits
Evaluation Kit for the MAX8814
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