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Batteries are the main power source for many portable and other products. They also usually take up considerable space and add weight to these products. Size, weight and long battery life can be key factors in making a product stand out from the competition. Therefore, selecting the right battery system and developing the charge management control circuitry are important factors in designing battery-powered devices.

Rechargeable Lithium-ion (Li-ion) and Nickel-Metal-Hydride (NiMH) batteries are widely used in mainstream portable electronics and Lithium-Iron-Phosphate (LiFEPO4) batteries are ideal for use in off-the-grid and recreational applications. Each battery chemistry has advantages and disadvantages as well as unique charging requirements. Managing these diverse requirements while also implementing cell balancing and fuel gauging and managing power paths can become a very complex design challenge.

We offer a variety of battery management solutions that can maximize battery capacity, minimize charge time, ensure safe charging and save space in your design.

Battery Charge Management Controllers for Li-ion and LiFEPO4 Batteries


Our Li-ion charge management controllers are reliable, low-cost and high accuracy voltage regulation solutions that require few external components to reduce design size, cost and complexity.

Intelligent Battery Charging for Li-ion and NiMH Batteries


Combine one of our high-speed and high-voltage MCP1631HV Pulse-Width Modulators (PWMs) with one of our microcontrollers (MCUs) to implement programmable switch-mode charging for Li-Ion and NiMH batteries and other battery chemistries.

Switching Solution for Programmable Charger


The MCP19111 is a mid-voltage analog-based PWM controller with an integrated 8-bit PIC® MCU that can be programmed to make a very flexible battery charger by controlling a high-efficiency synchronous buck circuit. The MCP19111 is ideal for charging multiple battery cells.

Microcontroller-Based Battery Management


Many of our microcontrollers (MCUs) and Digital Signal Controllers (DSCs) can be combined with our battery charge management ICs. They offer key features, including Core Independent Peripherals (CIPs) and Intelligent Analog peripherals, that can simplify the development of battery management solutions.

Featured Products


PIC18-Q41 Family

This family of small-form-factor 8-bit PIC® MCUs enables cost-effective battery management for portable devices.

Key Features:

  • 14-pin packages as small as 3 × 3 mm
  • 5.5 MHz op amp with built-in resistor ladder significantly reduces BOM cost and application footprint
  • 12-bit Analog-to-Digital Converter with Computation (ADCC), buffered Digital-to-Analog Converter (DAC), high-speed comparator and other Core Independent Peripherals to simplify your design while reducing power consumption
  • Rapid prototyping with our development tools including MPLAB® Code Configurator and MPLAB Mindi™ Analog Simulator

AVR128DB48

Based on the low-power AVR® core, this 8-bit MCU gives you the features and freedom to create battery management solutions.

Key Features

  • Up to three configurable op amps and a 12-bit differential ADC to perform differential analog-to-digital measurement for your low-side current
  • Three high-speed comparators
  • 10-bit DAC with output buffer
  • 16-bit center-aligned Pulse-Width Modulation (PWM) generation with 12-bit complementary output
  • Multi-voltage I/O to eliminate the need for a level shifter

Simplify and Speed Up Your Development with These Resources


MPLAB® Analog Designer

Provides design suggestions for common circuit needs, estimates performance for common modifications, and can export to MPLAB® Mindi™ Analog Simulator for verification.

MPLAB® Mindi™ Analog Simulator

Uses a SIMetrix/SIMPLIS environment to model circuit behavior, reducing design time with software debugging for initial design verification.

Power Check Design Service

Provides advice on your exact physical circuit layout, sharing best practices from an experienced power supply designer, so that physical hardware will match simulations.

Development Tools


Documentation


Title Download
AN971 - USB Port-Powered Li-Ion/Li-Polymer Battery Charging Download
Title Download
Portable Power Conversion Design Guide Download
Title Download
MCP1631HV Multi-Chemistry Battery Charger Reference Design Download

Battery Management Products


View All Parametrics
Product # of cells Linear Mode Vin Min (V) Vin Max (V) Charge Monitor Charge Safety Timers
MCP73113 1 Yes 4 16 Yes Yes
MCP73114 1 Yes 4 16 Yes Yes
MCP73123 1 Yes 4 16 Yes Yes
MCP73213 2 Yes 4 16 Yes Yes
MCP73223 2 Yes 4 16 Yes Yes
MCP73811 1 Yes 3.75 6 No No
MCP73812 1 Yes 3.75 6 No No
MCP73826 1 Yes 4.5 5.5 No No
MCP73827 1 Yes 4.5 5.5 Yes No
MCP73828 1 Yes 4.5 5.5 No No
MCP73830 1 Yes 3.75 6 Yes Yes
MCP73830L 1 Yes 3.75 6 Yes Yes
MCP73831 1 Yes 3.75 6 Yes No
MCP73832 1 Yes 3.75 6.0 Yes No
MCP73833 1 Yes 3.75 6.0 Yes Yes
MCP73834 1 Yes 3.75 6.0 Yes Yes
MCP73837 1 Yes 3.75 6.0 Yes Yes
MCP73838 1 Yes 3.75 6.0 Yes Yes
MCP73841 1 Yes 4.5 12 No Yes
MCP73842 2 Yes 8.7 12 No Yes
MCP73843 1 Yes 4.5 12 No Yes
MCP73844 2 Yes 8.7 12 No Yes
MCP73853 1 Yes 4.5 5.5 No Yes
MCP73855 1 Yes 4.5 5.5 No Yes
MCP73871 1 Yes 4.4 6 Yes Yes
MIC79050 1 Yes 2.5 16 No No
MIC79110 1 Yes 2.5 16 Yes No
PS200 999 No 2 5 Yes