Maxim Integrated MAX713CPE Battery Charger

The Maxim Integrated MAX713CPE is a highly efficient and versatile NiCd/NiMH battery charger integrated circuit designed to simplify the construction of smart battery chargers. This particular IC is capable of charging batteries ranging from 1 to 16 cells, providing a flexible solution for a wide array of battery configurations. The MAX713CPE is housed in a 16-pin DIP package, making it suitable for through-hole mounting, which is ideal for prototyping and small-scale production.

One of the key features of the MAX713CPE is its fast-charge control algorithm that ensures rapid and safe charging of batteries. The IC automatically switches to a lower trickle charge rate once the battery is fully charged, thus preventing overcharging and extending battery life. This is achieved through a combination of voltage slope detection, temperature sensing, and a programmable timer, which together ensure that the charging process is halted at the optimal point.

The device also offers a high level of integration, requiring only a few external components to create a complete charging system. This simplicity reduces the overall design complexity and allows for a more compact and cost-effective charger design. The MAX713CPE includes a precision voltage reference and an analog-to-digital converter, which facilitate accurate monitoring of the battery voltage and temperature during charging.

Furthermore, the MAX713CPE provides the flexibility to select between two charge termination methods: the negative delta V method, which detects a slight voltage drop that indicates full battery charge, and the peak voltage method, which detects when the battery voltage reaches a specific threshold. Designers can choose the best method based on the specific characteristics of the battery being charged.

For enhanced safety, the MAX713CPE incorporates a variety of protection features. These include an undervoltage lockout, which prevents operation when the supply voltage is too low, and a charge safety timer, which ensures that the charger will shut off if the battery does not reach full charge within a predetermined time frame.

In summary, the Maxim Integrated MAX713CPE is a comprehensive solution for designing advanced battery chargers for NiCd and NiMH batteries. Its combination of fast charging, flexible configuration, and safety features make it a top choice for applications requiring reliable and efficient battery management.