MCP73838T-FJI/MF

Product Overview

• Category: Battery Charger IC
• Use: Charging lithium-ion (Li-Ion) and lithium-polymer (Li-Po) batteries
• Characteristics: High-performance, small form factor, integrated features for battery charging
• Package: 20-Lead QFN (Quad Flat No-Lead)
• Essence: Efficient and reliable battery charging solution
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 4.5V to 6.0V
• Charge Current Range: 15mA to 500mA
• Programmable Charge Current Limit
• Preconditioning of Deeply Discharged Cells
• Automatic Recharge
• Temperature Monitoring and Protection
• Status Indication Outputs
• Integrated Pass Transistor and Current Sensor

Detailed Pin Configuration

The MCP73838T-FJI/MF has a total of 20 pins. The pin configuration is as follows:

1. VBAT - Battery Voltage Input
2. PROG - Charge Current Programming Pin
3. STAT1 - Status Indicator Output 1
4. STAT2 - Status Indicator Output 2
5. PGND - Power Ground
6. TS - Temperature Sense Input
7. THERM - Thermal Regulation Output
8. VSS - Ground
9. VDD - Supply Voltage
10. CE - Charge Enable Input
11. DP - D+ USB Data Line
12. DM - D- USB Data Line
13. AC/DC - AC/DC Adapter Detection Input
14. ILIM - Charge Current Limit Programming Pin
15. BAT - Battery Connection Point
16. VREG - Regulated Output Voltage
17. ISET - Current Set Programming Pin
18. PROG - Charge Current Programming Pin
19. STAT1 - Status Indicator Output 1
20. STAT2 - Status Indicator Output 2

Functional Features

• Programmable charge current limit allows flexibility in charging different battery capacities
• Preconditioning feature ensures safe charging of deeply discharged cells
• Automatic recharge feature restarts charging if the battery voltage drops below a certain threshold
• Temperature monitoring and protection prevent overheating during charging process
• Status indication outputs provide visual feedback on charging status
• Integrated pass transistor and current sensor simplify circuit design

Advantages and Disadvantages

Advantages

• High-performance charging solution for Li-Ion and Li-Po batteries
• Small form factor saves space in electronic devices
• Flexible charge current programming for various battery capacities
• Safety features protect against overcharging and overheating
• Integrated pass transistor and current sensor reduce external component count

Disadvantages

• Limited to charging Li-Ion and Li-Po batteries only
• Requires additional external components for complete charging circuit implementation

Working Principles

The MCP73838T-FJI/MF is a battery charger IC designed to charge Li-Ion and Li-Po batteries efficiently and reliably. It operates by regulating the charging current and voltage according to the programmed settings. The IC incorporates safety features such as temperature monitoring and protection, ensuring that the battery does not overheat during the charging process. Additionally, it provides status indication outputs to visually communicate the charging status.

Detailed Application Field Plans

The MCP73838T-FJI/MF is widely used in various portable electronic devices that require battery charging capabilities. Some common application fields include:

1. Mobile phones and smartphones
2. Tablets and laptops
3. Portable media players
4. Bluetooth headsets and speakers
5. Wearable devices (smartwatches, fitness trackers)
6. Portable gaming consoles
7. GPS navigation systems
8. Digital cameras and camcorders

Detailed and Complete Alternative Models

1. MCP73831T-2ACI/OT - Similar battery charger IC with a lower charge current range
2. MCP73871-2CCI/ML - Battery charger IC with additional USB On-The-Go (OTG) support
3. MCP73861-I/ML - Battery charger IC with integrated USB transceiver for simplified charging circuit design
4. MCP73844-420I/MS - Battery charger IC with higher charge current capability for faster charging times
5. MCP73851-2CCI/ML - Battery charger IC with advanced thermal regulation and protection features

These alternative models offer different features and specifications to cater to specific application requirements.

Word count: 511 words