MCP73838T-NVI/MF

Product Overview

• Category: Integrated Circuit (IC)
• Use: Battery Charger
• Characteristics: High-performance, Standalone Linear Li-Ion / Li-Polymer Charge Management Controller
• Package: 10-Lead, 3x3 mm DFN (Dual Flat No-Lead)
• Essence: Efficient and reliable battery charging solution
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Input Voltage: 4.5V to 6.0V
• Charging Current: Programmable up to 1.5A
• Preconditioning Current: Programmable up to 250mA
• Termination Current: Programmable up to 1/10th of the fast charge current
• Charge Voltage: Programmable up to 4.2V
• Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MCP73838T-NVI/MF has a total of 10 pins. The pin configuration is as follows:

1. VBAT - Battery Voltage Input
2. STAT - Status Output
3. PG - Power Good Output
4. PROG - Programming Input
5. TS - Temperature Sense Input
6. VSS - Ground
7. VDD - Supply Voltage Input
8. CE - Charge Enable Input
9. DP - D+ USB Data Line
10. DM - D- USB Data Line

Functional Features

• Standalone linear charge management controller
• Programmable charging current, preconditioning current, termination current, and charge voltage
• Automatic recharge feature
• Safety features like thermal regulation, charge status indication, and power good output
• USB compatible

Advantages

• High-performance charging solution for Li-Ion and Li-Polymer batteries
• Flexible programmability allows customization for various battery types and charging requirements
• Compact package size enables space-saving designs
• Reliable and efficient charging with built-in safety features
• USB compatibility provides convenience for charging from various power sources

Disadvantages

• Limited to Li-Ion and Li-Polymer battery charging applications
• Requires external components for complete charging circuit implementation
• Not suitable for high-power charging applications

Working Principles

The MCP73838T-NVI/MF is a standalone linear charge management controller designed for Li-Ion and Li-Polymer batteries. It utilizes a constant current/constant voltage (CC/CV) charging algorithm to efficiently charge the batteries. The charging parameters such as charging current, preconditioning current, termination current, and charge voltage can be programmed according to the specific battery requirements.

The device monitors the battery temperature and adjusts the charging process accordingly to prevent overheating. It also provides status indication through the STAT pin and power good output through the PG pin. The MCP73838T-NVI/MF can be enabled or disabled using the CE pin.

Detailed Application Field Plans

The MCP73838T-NVI/MF is widely used in portable electronic devices that require reliable and efficient battery charging. Some of the application fields include:

1. Smartphones and tablets
2. Portable media players
3. Bluetooth headsets
4. GPS navigation systems
5. Portable gaming consoles
6. Wearable devices

Detailed and Complete Alternative Models

1. MCP73831T-2ACI/OT - Standalone Linear Li-Ion / Li-Polymer Charge Management Controller with 500mA Programmable Charging Current
2. MCP73871-2CCI/ML - Standalone Linear Li-Ion / Li-Polymer Charge Management Controller with Integrated Pass Transistor and 1A Programmable Charging Current
3. MCP73844-840I/MS - Standalone Linear Li-Ion / Li-Polymer Charge Management Controller with Dual Input and 1A Programmable Charging Current

These alternative models offer similar functionality but may have different specifications and package options.

In conclusion, the MCP73838T-NVI/MF is a high-performance standalone linear charge management controller designed for Li-Ion and Li-Polymer batteries. Its programmability, compact size, and safety features make it an ideal choice for various portable electronic devices. However, it is important to consider alternative models based on specific requirements and application needs.