LTC4065AEDC#TRMPBF

Product Overview

Category: Integrated Circuit (IC)

Use: Battery Charger

Characteristics: - High Efficiency - Low Quiescent Current - Wide Input Voltage Range - Programmable Charge Current - Thermal Regulation for Optimal Charging - Automatic Recharge - Reverse Battery Protection - Overvoltage Protection - Undervoltage Lockout - Power Good Status Output

Package: DFN-10 (3mm x 3mm)

Essence: The LTC4065AEDC#TRMPBF is a high-performance battery charger IC designed for various portable electronic devices. It offers efficient and reliable charging capabilities while providing multiple protection features.

Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Input Voltage Range: 4V to 8V
• Charge Voltage: Programmable from 3.75V to 4.6V
• Charge Current: Programmable up to 1.2A
• Quiescent Current: 35µA (typical)
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The LTC4065AEDC#TRMPBF has the following pin configuration:

1. VIN: Input Voltage
2. GND: Ground
3. PROG: Charge Current Programming Pin
4. STAT: Power Good Status Output
5. BAT: Battery Connection
6. VOUT: Regulated Output Voltage
7. TS: Thermal Shutdown Pin
8. EN: Enable Pin
9. FLT: Fault Indicator
10. PGND: Power Ground

Functional Features

1. High Efficiency: The LTC4065AEDC#TRMPBF provides high charging efficiency, minimizing power loss during the charging process.
2. Low Quiescent Current: With a low quiescent current of 35µA, the IC ensures minimal power consumption when not actively charging.
3. Wide Input Voltage Range: The IC can accept input voltages ranging from 4V to 8V, making it suitable for various power sources.
4. Programmable Charge Current: Users can program the charge current according to their specific requirements, up to a maximum of 1.2A.
5. Thermal Regulation for Optimal Charging: The IC incorporates thermal regulation to optimize the charging process and prevent overheating.
6. Automatic Recharge: It automatically restarts the charging process if the battery voltage drops below a certain threshold after completion.
7. Protection Features: The LTC4065AEDC#TRMPBF offers protection against reverse battery connection, overvoltage, and undervoltage conditions.
8. Power Good Status Output: The STAT pin provides a status indication of the charging process.

Advantages

• High charging efficiency ensures faster charging times.
• Programmable charge current allows customization based on device requirements.
• Multiple protection features safeguard the battery and the charging circuitry.
• Thermal regulation prevents overheating during charging.
• Automatic recharge feature ensures continuous battery availability.

Disadvantages

• Limited to a maximum charge current of 1.2A, which may not be sufficient for high-capacity batteries.
• The DFN-10 package may require specialized equipment for soldering and handling.

Working Principles

The LTC4065AEDC#TRMPBF operates as a linear charger with a constant-current/constant-voltage charging profile. It regulates the charging current and voltage to ensure safe and efficient charging of the connected battery. The IC monitors the battery voltage, temperature, and charging status to provide optimal charging conditions while protecting against potential faults.

Detailed Application Field Plans

The LTC4065AEDC#TRMPBF is suitable for a wide range of portable electronic devices that require battery charging capabilities. Some potential application fields include:

1. Smartphones and Tablets
2. Portable Media Players
3. Wearable Devices
4. Bluetooth Headsets
5. GPS Navigation Systems
6. Portable Gaming Consoles

Detailed and Complete Alternative Models

1. MCP73831: Microchip Technology's single-cell Li-Ion/Li-Polymer charge management controller.
2. MAX1555: Maxim Integrated's highly integrated linear charger for single-cell Li-Ion batteries.
3. BQ24075: Texas Instruments' compact, high-efficiency linear charger for single-cell Li-Ion/Li-Polymer batteries.

These alternative models offer similar functionality and features to the LTC4065AEDC#TRMPBF and can be considered as alternatives based on specific requirements.

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