MCP73838T-NVI/UN

Product Overview

• Category: Battery Charger IC
• Use: Charging Lithium-Ion (Li-Ion) batteries
• Characteristics: High-performance, compact size, low-power consumption
• Package: 10-Lead MSOP package
• Essence: Efficient and reliable battery charging solution
• Packaging/Quantity: Available in tape and reel packaging, quantity varies based on supplier

Specifications

• Input Voltage Range: 4.5V to 6.0V
• Charge Current Range: 15mA to 500mA
• Preconditioning Current: 10% of programmed current
• Charge Termination Options: C/10 or timer
• Temperature Monitoring: Yes
• Reverse Discharge Protection: Yes
• Battery Temperature Monitoring: Yes
• Thermal Regulation: Yes
• Status Output: Yes

Detailed Pin Configuration

1. VBAT - Battery voltage input
2. PROG - Charge current programming pin
3. STAT - Status output pin
4. TS - Battery temperature sense input
5. GND - Ground
6. PG - Power good output
7. CE - Charge enable input
8. VDD - Supply voltage input
9. VSS - Negative supply voltage input
10. VOUT - Regulated output voltage

Functional Features

• Programmable charge current
• Automatic charge termination
• Temperature monitoring for safe charging
• Reverse discharge protection
• Power good output for system status indication
• Compact size for space-constrained applications

Advantages and Disadvantages

Advantages: - High-performance charging solution - Compact size allows for easy integration - Low-power consumption for energy efficiency - Reliable and efficient charging process - Temperature monitoring ensures safe charging - Reverse discharge protection prevents battery damage

Disadvantages: - Limited charge current range (15mA to 500mA) - Requires external components for complete charging circuit

Working Principles

The MCP73838T-NVI/UN is a battery charger IC designed for Lithium-Ion batteries. It operates by regulating the charge current and monitoring the battery temperature to ensure safe and efficient charging. The charge current can be programmed using the PROG pin, allowing flexibility in charging different battery capacities. The IC also provides automatic charge termination options based on either a C/10 rate or a timer. Temperature monitoring ensures that the charging process does not exceed safe limits. Additionally, the MCP73838T-NVI/UN offers reverse discharge protection to prevent battery damage.

Detailed Application Field Plans

The MCP73838T-NVI/UN is suitable for various applications that require Lithium-Ion battery charging. Some potential fields of application include: 1. Portable electronic devices such as smartphones, tablets, and digital cameras 2. Wearable devices like smartwatches and fitness trackers 3. Portable medical devices such as blood glucose monitors and portable oxygen concentrators 4. Industrial equipment and tools powered by Li-Ion batteries 5. Electric vehicles and electric bikes

Detailed and Complete Alternative Models

1. MCP73831T-2ACI/OT: Similar functionality with a lower charge current range (15mA to 200mA)
2. MCP73871-2CCI/ML: Higher charge current range (15mA to 1000mA) with additional features like USB OTG support
3. MCP73844-420I/MS: Dual-cell battery charger with a charge current range of 15mA to 420mA

These alternative models provide options for different charging requirements and system designs.

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