LTC4080XEDD#TRPBF

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 Leakage Protection - Overvoltage Protection - Undervoltage Lockout - Power Good Indicator

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

Essence: The LTC4080XEDD#TRPBF is a high-performance battery charger IC designed for various portable electronic devices. It offers efficient and reliable charging capabilities while providing protection against overvoltage, undervoltage, and reverse leakage.

Packaging/Quantity: The LTC4080XEDD#TRPBF is available in tape and reel packaging with a quantity of 2500 units per reel.

Specifications

• Input Voltage Range: 4V to 18V
• Charge Voltage Range: 2.5V to 14.4V
• Maximum Charge Current: 1A
• Quiescent Current: 35µA
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The LTC4080XEDD#TRPBF features the following pin configuration:

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

Functional Features

1. High Efficiency: The LTC4080XEDD#TRPBF incorporates a high-efficiency synchronous buck charger, ensuring maximum power transfer during the charging process.
2. Low Quiescent Current: With a quiescent current of only 35µA, the IC minimizes power consumption when not actively charging.
3. Programmable Charge Current: The charge current can be programmed using an external resistor, allowing flexibility in charging different battery types and capacities.
4. Thermal Regulation: The IC features thermal regulation to optimize the charging process and prevent overheating.
5. Automatic Recharge: After a battery is fully charged, the LTC4080XEDD#TRPBF automatically enters a low-power standby mode and periodically checks the battery voltage. If the voltage drops below a certain threshold, it initiates a recharge cycle.
6. Protection Features: The IC provides protection against overvoltage, undervoltage, and reverse leakage, safeguarding the battery and the charging circuitry.
7. Power Good Indicator: The PG pin indicates the status of the charging process, providing a visual indication of successful charging.

Advantages and Disadvantages

Advantages: - High efficiency ensures optimal use of power - Programmable charge current allows compatibility with various battery types - Thermal regulation prevents overheating - Automatic recharge feature prolongs battery life - Protection features ensure safe charging

Disadvantages: - Limited maximum charge current (1A)

Working Principles

The LTC4080XEDD#TRPBF operates as a synchronous buck charger. It converts the input voltage into a regulated output voltage suitable for charging batteries. The charge current can be programmed using an external resistor connected to the PROG pin. The IC continuously monitors the battery voltage and adjusts the charging process accordingly. It incorporates thermal regulation to prevent excessive heat generation during charging.

Detailed Application Field Plans

The LTC4080XEDD#TRPBF is widely used in various portable electronic devices, including: - Smartphones - Tablets - Portable media players - Wearable devices - GPS devices

Detailed and Complete Alternative Models

1. LTC4080XEDD#PBF: Similar to LTC4080XEDD#TRPBF but available in a different package (DFN-10)
2. LTC4080XEDD#TRMPBF: Similar to LTC4080XEDD#TRPBF but available in a different package (DFN-10 with exposed pad)
3. LTC4080XEDD#PBF-ND: Similar to LTC4080XEDD#PBF but available through a different distributor

These alternative models offer similar functionality and characteristics, providing flexibility in choosing the most suitable option for specific applications.

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