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
Intelligent Battery Charging for Li-ion and NiMH Batteries
Switching Solution for Programmable Charger
Microcontroller-Based Battery Management
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
Battery Management Products
| 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 |
