MAX713
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MAX713

NiCd/NiMH Battery Fast-Charge Controllers

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Charges 1-16 Series Cells at Rates Up to 4C

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 6
1ku List Price Starting From $4.02
Features
  • 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
Additional Details
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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
Part Models 6
1ku List Price Starting From $4.02

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX713CPE+
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MAX713CSE+
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MAX713CSE+T
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MAX713EPE+
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MAX713ESE+
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MAX713ESE+T
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Filter by Model

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Part Models

Product Lifecycle

PCN

Aug 18, 2021

- 1702RA

ASSEMBLY

MAX713CSE+

PRODUCTION

Aug 18, 2021

- 1702RN

ASSEMBLY

MAX713CSE+T

PRODUCTION

MAX713ESE+

PRODUCTION

MAX713ESE+T

PRODUCTION

May 22, 2018

- 1702N

ASSEMBLY

MAX713ESE+

PRODUCTION

MAX713ESE+T

PRODUCTION

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Aug 18, 2021

- 1702RA

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ASSEMBLY

MAX713CSE+

PRODUCTION

Aug 18, 2021

- 1702RN

arrow down

ASSEMBLY

MAX713CSE+T

PRODUCTION

MAX713ESE+

PRODUCTION

MAX713ESE+T

PRODUCTION

May 22, 2018

- 1702N

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ASSEMBLY

MAX713ESE+

PRODUCTION

MAX713ESE+T

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

MAX713SWEVKIT

Evaluation Kit for the MAX713 (Switching Applications)

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MAX713SWEVKIT

Evaluation Kit for the MAX713 (Switching Applications)

Evaluation Kit for the MAX713 (Switching Applications)

Features and Benefits

  • Up to 1A Charge Current
  • 45V Peak Input Voltage Range
  • Switch-Mode Operation Reduces Heat Dissipation
  • Surface-Mount Components
  • Charges 1 to 16 Series Cells

Product Detail

The MAX713SWEVKIT-SO is a fully assembled and tested surface-mount board. The MAX713 high-current, switch-mode battery charger controls a P-channel power MOSFET, allowing charge currents up to 1A. Switch-mode operation typically provides 75%-efficient conversion, reducing heat compared to linear-regulator solutions.

The MAX713SWEVKIT can also be used to evaluate the MAX712 just by replacing the MAX713CSE with a MAX712CSE.

Applications

  • Battery-Powered Applications
  • Cell Phones
  • Cordless Phones
  • Handy Terminals
  • Laptop, Notebook, and Palmtop Computers
  • Portable Consumer Products
  • Portable Stereos

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