MAX712
PRODUCTIONNiCd/NiMH Battery Fast-Charge Controllers
Charges 1-16 Series Cells at Rates Up to 4C
- Part Models
- 6
- 1ku List Price
- Starting From $5.00
Overview
- Fast-Charge NiMH or NiCd Batteries
- Voltage Slope, Temperature, and Timer Fast-Charge Cutoff
- Charge 1 to 16 Series Cells
- Supply Battery's Load While Charging (Linear Mode)
- Fast Charge from C/4 to 4C Rate
- C/16 Trickle-Charge Rate
- Automatically Switch from Fast to Trickle Charge
- Linear Mode Power Control
- 5µA (max) Drain on Battery when Not Charging
- 5V Shunt Regulator Powers External Logic
The MAX712/MAX713 fast-charge Nickel Metal Hydride (NiMH) and Nickel Cadmium (NiCd) batteries from a DC source at least 1.5V higher than the maximum battery voltage. 1 to 16 series cells can be charged at rates up to 4C. A voltage-slope detecting analog-to-digital converter, timer, and temperature window comparator determine charge completion. The MAX712/MAX713 are powered by the DC source via an on-board +5V shunt regulator. They draw a maximum of 5µA from the battery when not charging. A low-side current-sense resistor allows the battery charge current to be regulated while still supplying power to the battery's load.
The MAX712 terminates fast charge by detecting zero voltage slope, while the MAX713 uses a negative voltage-slope detection scheme. Both parts come in 16-pin DIP and SO packages. An external power PNP transistor, blocking diode, three resistors, and three capacitors are the only required external components.
The evaluation kit is available: Order the MAX712EVKIT-DIP for quick evaluations of the linear charger.
Applications
- Cellular Phones
- Cordless Phones
- Handy-Terminals
- Laptop, Notebook, and Palmtop Computers
- Portable Stereos
Documentation
Data Sheet 1
Design Note 2
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 |
|---|---|---|---|
| MAX712CPE+ | Plastic Dual-In-Line, Narrow (0.3in) | ||
| MAX712CSE+ | Small-Outline IC Narrow (0.15in) | ||
| MAX712CSE+T | Small-Outline IC Narrow (0.15in) | ||
| MAX712EPE+ | Plastic Dual-In-Line, Narrow (0.3in) | ||
| MAX712ESE+ | Small-Outline IC Narrow (0.15in) | ||
| MAX712ESE+T | Small-Outline IC Narrow (0.15in) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Aug 18, 2021 - 1702RN ASSEMBLY |
||
| MAX712CSE+ | PRODUCTION | |
| MAX712CSE+T | PRODUCTION | |
| MAX712ESE+ | PRODUCTION | |
| MAX712ESE+T | PRODUCTION | |
|
May 22, 2018 - 1702N ASSEMBLY |
||
| MAX712CSE+ | PRODUCTION | |
| MAX712CSE+T | PRODUCTION | |
| MAX712ESE+ | PRODUCTION | |
| MAX712ESE+T | PRODUCTION | |
|
Apr 20, 2026 - 2571A PIN/ERRATA |
||
| MAX712CSE+T | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Battery Charger ICs 3 | ||
| MAX846A | PRODUCTION | Cost-Saving, Multichemistry, Battery Charger System |
| MAX1640 | PRODUCTION | Adjustable-Output, Switch-Mode Current Sources with Synchronous Rectifier |
| MAX1647 | PRODUCTION | Chemistry-Independent Battery Chargers |
| Hot Swap Controllers 1 | ||
| MAX1612 | Obsolete | Bridge Battery Backup Controllers for Notebooks |
| Microcontrollers 1 | ||
| MAX1782 | Obsolete | Advanced Smart Battery-Pack Controller |
Evaluation Kits
Evaluation Kit for the MAX713 (Switching Applications)