Model No: MCP73871-2CCI/ML
Microchip Technology MCP73871-2CCI/ML
Manufacturer: Microchip Technology
SEMICON NO.: MCP73871-2CCI/ML
Package: 20-VFQFN
Stock: In stock
Description: IC Battery Charger LI-ION 1CELL 20QFN
SEMICON NO.: MCP73871-2CCI/ML
Package: 20-VFQFN
Stock: In stock
Description: IC Battery Charger LI-ION 1CELL 20QFN
Quantity :
| Mfr | Microchip Technology |
| Product Type | Single-Cell Li-Ion/Li-Po Charger IC |
| Input Voltage Range | 3.75V to 6.0V (operational), 6.5V (absolute max) |
| Battery Voltage | 4.2V (fixed output for single-cell Li-Ion/Li-Po) |
| Charge Current | Programmable up to 1A (via external resistor) |
| Preconditioning Current | 10% of programmed current (default) |
| Charge Termination | 7.5% of programmed current (C/10 or adjustable) |
| Charge Accuracy | ±0.5% (voltage regulation), ±7% (current regulation) |
| Charge Phases | Trickle → Constant Current → Constant Voltage → Termination |
| Standby Current | 1 µA (typical, when input removed) |
| Protection Features | Thermal shutdown, input overvoltage (OVP), battery overvoltage, timer fault |
| Operating Temperature | -40°C to +85°C (industrial) |
| Package / Case | 20-VFQFN |
Linear charge management chip | MCP73871-2CCI/ML Li-Ion battery charger
The MCP73871-2CCI/ML is a fully integrated linear solution for system load sharing and Li-Ion/Li-Polymer battery charge management. It supports power source selection between an AC-DC wall adapter and a USB port. This device is designed to provide both system power and battery charging simultaneously, making it ideal for portable applications where space and efficiency are critical.
Spec features
TheMCP73871-2CCI/ML features integrated system load sharing and battery charge management. It supports voltage proportional current control (VPCC) to prioritize system load over battery charge current and offers low-loss power-path management with ideal diode operation. The device has preset high accuracy charge voltage options of 4.20V with ±0.5% regulation tolerance. It supports constant current/constant voltage (CC/CV) operation with thermal regulation and can handle up to 1.8A total input current. The fast charge current is resistor programmable from 50 mA to 1A, and it includes automatic recharge, end-of-charge control, and a safety timer. Additional features include a battery cell temperature monitor, undervoltage lockout (UVLO), low battery status indicator (LBO), and power-good status indicator (PG). It operates within a temperature range of -40°C to +85°C and is available in a 20-lead QFN package.
Precautions in Use
When using the MCP73871-2CCI/ML, ensure that the input voltage is within the specified range of 4.1V to 6V. Proper selection of external components, such as the input capacitor and inductor, is crucial for optimal performance. The device continuously monitors battery temperature during the charge cycle, and charging will be suspended if the temperature exceeds the set thresholds. The timer enable (TE) feature can be used to disable the internal timer when the system load limits the available supply current for charging. Ensure that the thermal regulation and protection features are properly configured to prevent overheating and maintain device reliability.
Application scenarios
The MCP73871-2CCI/ML is suitable for a wide range of applications, including GPS devices, PDAs, smartphones, portable media players, digital cameras, Bluetooth headsets, portable medical devices, charge cradles, docking stations, and toys. Its ability to manage both system load and battery charging makes it ideal for portable electronic devices that require efficient power management and reliable battery charging.
More alternative battery charger integrated circuitmodels
Alternative models to the MCP73871-2CCI/ML include the MCP73871-1CCI/ML, which offers a 4.10V charge voltage option, and the MCP73871-3CCI/ML, which provides a 4.35V charge voltage option. These alternatives can be selected based on specific application requirements for charge voltage and operating conditions.
The MCP73871-2CCI/ML is a fully integrated linear solution for system load sharing and Li-Ion/Li-Polymer battery charge management. It supports power source selection between an AC-DC wall adapter and a USB port. This device is designed to provide both system power and battery charging simultaneously, making it ideal for portable applications where space and efficiency are critical.
Spec features
TheMCP73871-2CCI/ML features integrated system load sharing and battery charge management. It supports voltage proportional current control (VPCC) to prioritize system load over battery charge current and offers low-loss power-path management with ideal diode operation. The device has preset high accuracy charge voltage options of 4.20V with ±0.5% regulation tolerance. It supports constant current/constant voltage (CC/CV) operation with thermal regulation and can handle up to 1.8A total input current. The fast charge current is resistor programmable from 50 mA to 1A, and it includes automatic recharge, end-of-charge control, and a safety timer. Additional features include a battery cell temperature monitor, undervoltage lockout (UVLO), low battery status indicator (LBO), and power-good status indicator (PG). It operates within a temperature range of -40°C to +85°C and is available in a 20-lead QFN package.
Precautions in Use
When using the MCP73871-2CCI/ML, ensure that the input voltage is within the specified range of 4.1V to 6V. Proper selection of external components, such as the input capacitor and inductor, is crucial for optimal performance. The device continuously monitors battery temperature during the charge cycle, and charging will be suspended if the temperature exceeds the set thresholds. The timer enable (TE) feature can be used to disable the internal timer when the system load limits the available supply current for charging. Ensure that the thermal regulation and protection features are properly configured to prevent overheating and maintain device reliability.
Application scenarios
The MCP73871-2CCI/ML is suitable for a wide range of applications, including GPS devices, PDAs, smartphones, portable media players, digital cameras, Bluetooth headsets, portable medical devices, charge cradles, docking stations, and toys. Its ability to manage both system load and battery charging makes it ideal for portable electronic devices that require efficient power management and reliable battery charging.
More alternative battery charger integrated circuitmodels
Alternative models to the MCP73871-2CCI/ML include the MCP73871-1CCI/ML, which offers a 4.10V charge voltage option, and the MCP73871-3CCI/ML, which provides a 4.35V charge voltage option. These alternatives can be selected based on specific application requirements for charge voltage and operating conditions.
