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Home » Technology List » Microchip Technology MCP73xx Charge Management Controllers

Microchip Technology MCP73xx Charge Management Controllers

Published:5/9/2018.

1.ABOUT Microchip Technology 

Microchip Technology is an American manufacturer of microcontroller, memory and analog semiconductors. Its products include microcontrollers (PICmicro, dsPIC / PIC24, PIC32, AVR, AVR32 and SAM), Serial EEPROM devices, Serial SRAM devices, KEELOQ devices, radio frequency (RF) devices, thermal, power and battery management analog devices, as well as linear, interface and mixed signal devices. Some of the interface devices include USB, ZigBee/MiWi, Controller Area Network, LoRa, SIGFOX and Ethernet.Corporate headquarters is located at Chandler, Arizona with wafer fabs in Tempe, Arizona, Gresham, Oregon and Colorado Springs, Colorado, assembly/test facilities in Chachoengsao, Thailand and Calamba, Philippines. Sales for the fiscal year ending on March 31, 2016 were $2,173,334,000.

Microchip Technology Inc. is a leading provider of microcontroller and analog semiconductors, providing low-risk product development, lower total system cost and faster time to market for thousands of diverse customer applications worldwide. Headquartered in Chandler, Arizona, Microchip offers outstanding technical support along with dependable delivery and quality.

2,Microchip Technology MCP73xx Charge Management Controllers Description

Microchip Technology MCP73xx Charge Management Controllers enhance the safety and efficiency of battery-powered applications by providing overvoltage protection, high-accuracy voltage regulation, and an integrated pass transistor. The Microchip Technology MCP73xx family provides specific charge algorithms for Li-Ion/Li-Polymer and LiFePO4 batteries to achieve optimal capacity and safety in the shortest charging time possible. These Microchip Technology Charge Management Controllers have a maximum input voltage of 18V and come with an OVP set point of 5.8V and 6.5V for the single-cell MCP73113 and MCP7314 and an OVP set point of 13V for the dual-cell MCP73213 and MCP73123. These devices also offer a variety of charging-voltage options for both Li-Ion and LiFePO4 batteries.

Microchip Offcial description
The MCP73113/4 are highly integrated Li-Ion battery charge management controllers for use in spacelimited and cost-sensitive applications. The MCP73113/4 devices provide specific charge algorithms for Li-Ion/Li-Polymer batteries to achieveoptimal capacity and safety in the shortest charging time possible. Along with their small physical size, the low number of external components make the MCP73113/4 ideally suitable for portable applications.

The absolute maximum voltage, up to 18V, allows the use of MCP73113/4 in harsh environments, such as low cost wall wart or voltage spikes from plug/unplug.The MCP73113/4 devices employ a constant current/constant voltage charge algorithm. The various charging voltage regulations provide design engineers flexibility to use in different applications. The fast charge, constant current value is set with one external resistor from 130 mA to 1100 mA. The MCP73113/4 devices limit the charge current based on die temperature during high power or high ambient conditions. This thermal regulation optimizes the charge cycle time while maintaining device reliability.

The PROG pin of the MCP73113/4 also serves as enable pin. When high impedance is applied, the MCP73113/4 will be in standby mode. The MCP73113/4 devices are fully specified over the ambient temperature range of -40°C to +85°C. They are available in a 10 lead, DFN package.

3.The MCP73113/4 Features and Applications
Features
Complete Linear Charge Management Controller:Integrated Input Overvoltage Protection Integrated Pass Transistor Integrated Current Sense Integrated Reverse Discharge Protection
Constant Current / Constant Voltage Operation with Thermal Regulation
4.15V Undervoltage Lockout (UVLO)
18V Absolute Maximum Input with OVP
High Accuracy Preset Voltage Regulation
Battery Charge Voltage Options:
3.6, 4.10V, 4.20V, 4.35V, 4.4V, 7.2V
Resistor Programmable Fast Charge Current: 130mA to 1100mA
Preconditioning of Deeply Depleted Cells Available Options: 10% or Disable
Integrated Precondition Timer: 32 Minutes or Disable
Automatic End-of-Charge Control
Selectable Minimum Current Ratio: 5%, 7.5%, 10% or 20%
Elapse Safety Timer: 4 HR, 6 HR, 8 HR or Disable
Automatic Recharge Options: 95% or Disable
Factory Preset Charge Status Output: On/Off or Flashing Soft start
Temperature Range: -40°C to +85°C
Packaging: DFN-10 (3mm x 3mm)

Applications
Low-Cost LiFePO4 Chargers
Low-Cost Li-Ion/Li-Poly Chargers
Power Tools
Toys    MP3 Players    Digital Cameras
Portable Media Players    Handheld Devices
Bluetooth Headsets    USB Chargers

MCP73113/4 Datasheet download address

4.Related Microchip's product:
Microchip's USB Portfolio
Originally intended as a replacement for serial and parallel connections on a PC to connect mice, keyboards and printers, the Universal Serial Bus interface has grown to become common in many embedded industrial, medical, automotive and consumer applications. Microchip’s USB solutions are designed to support the growing needs of these markets with a full complement of robust, highly integrated USB Hubs and Devices and USB MCUs and dsPIC® DSCs.

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Microchip Technology MCP73xx Charge Management Controllers
 

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