LTC4090EDJC-3#TRPBF

Product Overview

Category

The LTC4090EDJC-3#TRPBF belongs to the category of power management integrated circuits (PMICs).

Use

This PMIC is primarily used for managing and charging single-cell lithium-ion/polymer batteries.

Characteristics

• The LTC4090EDJC-3#TRPBF is a highly efficient battery charger with a maximum charge current of 800mA.
• It features an input voltage range of 4.95V to 6.5V, making it suitable for various power sources.
• This PMIC offers a programmable charge termination current and a C/10 detection algorithm for accurate battery charging.
• It includes an integrated power path management feature that allows simultaneous battery charging and system operation.
• The LTC4090EDJC-3#TRPBF also provides reverse leakage protection and overvoltage protection for enhanced safety.

Package

This PMIC is available in a small 12-pin DFN (3mm x 3mm) package, which ensures space-efficient integration into electronic devices.

Essence

The LTC4090EDJC-3#TRPBF is designed to provide efficient and reliable charging capabilities for single-cell lithium-ion/polymer batteries while ensuring the safety of the battery and the connected system.

Packaging/Quantity

The LTC4090EDJC-3#TRPBF is typically supplied in tape and reel packaging, with 250 units per reel.

Specifications

• Maximum Charge Current: 800mA
• Input Voltage Range: 4.95V to 6.5V
• Programmable Charge Termination Current
• C/10 Detection Algorithm
• Integrated Power Path Management
• Reverse Leakage Protection
• Overvoltage Protection

Detailed Pin Configuration

1. VBAT: Battery Voltage Input
2. VOUT: Output Voltage
3. GND: Ground
4. PROG: Charge Termination Current Programming Pin
5. ISET: Input Current Limit Programming Pin
6. STAT: Status Indicator Output
7. CE/UVLO: Enable/Input Undervoltage Lockout
8. TS: Thermistor Input
9. ILIM: Input Current Limit Indicator Output
10. INTVCC: Internal Regulator Output
11. VIN: Input Voltage
12. SDA/SCL: I2C Serial Data/Serial Clock

Functional Features

• Efficient charging of single-cell lithium-ion/polymer batteries
• Programmable charge termination current for precise battery charging
• C/10 detection algorithm ensures accurate charge termination
• Integrated power path management enables simultaneous charging and system operation
• Reverse leakage protection prevents battery discharge through the charger
• Overvoltage protection safeguards the battery and connected system

Advantages and Disadvantages

Advantages

• High charge current capability allows faster battery charging
• Wide input voltage range accommodates various power sources
• Programmable charge termination current enhances charging flexibility
• Integrated power path management enables uninterrupted system operation during charging
• Reverse leakage and overvoltage protection ensure battery and system safety

Disadvantages

• Limited to single-cell lithium-ion/polymer battery charging applications
• Requires external components for complete power management solution

Working Principles

The LTC4090EDJC-3#TRPBF operates by regulating the charging process of a single-cell lithium-ion/polymer battery. It utilizes a programmable charge termination current and a C/10 detection algorithm to accurately determine when the battery is fully charged. The integrated power path management feature allows the PMIC to simultaneously charge the battery and power the connected system, ensuring uninterrupted operation. The reverse leakage and overvoltage protection mechanisms safeguard the battery and the system from potential damage.

Detailed Application Field Plans

The LTC4090EDJC-3#TRPBF finds applications in various portable electronic devices, such as smartphones, tablets, wearable devices, and portable medical equipment. It is also suitable for battery-powered IoT devices, wireless sensors, and other low-power electronics that rely on single-cell lithium-ion/polymer batteries for energy storage.

Detailed and Complete Alternative Models

1. LTC4054: Similar PMIC with a lower charge current capability (400mA) but offers additional features like thermal regulation and battery temperature monitoring.
2. LTC4162: PMIC designed for multi-cell lithium-ion battery charging, offering higher charge currents and supporting multiple cells in series.
3. MAX1555: Compact PMIC with integrated USB interface for single-cell lithium-ion/polymer battery charging, suitable for portable devices.

(Note: The alternative models listed above are just a few examples and not an exhaustive list.)

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