LTC4088EDE#PBF

Product Overview

• Category: Integrated Circuit (IC)
• Use: Battery Charger
• Characteristics: High Efficiency, Low Quiescent Current, Wide Input Voltage Range
• Package: 12-Pin DFN (Dual Flat No-Lead)
• Essence: Power Management IC for Battery Charging Applications
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Charge Current Range: Up to 1A
• Charge Termination Options: C/10 or Timer
• Battery Float Voltage Range: 3.6V to 4.45V
• Operating Temperature Range: -40°C to 85°C

Pin Configuration

The LTC4088EDE#PBF has a 12-pin DFN package with the following pin configuration:

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

Functional Features

• High efficiency synchronous buck charger
• Programmable charge current up to 1A
• Automatic recharge
• Charge termination options: C/10 or timer
• Battery temperature monitoring and protection
• Input current limit programmability
• I²C interface for advanced control and monitoring

Advantages

• Wide input voltage range allows for versatile applications
• High efficiency reduces power dissipation and improves battery life
• Low quiescent current minimizes standby power consumption
• Programmable charge current offers flexibility for different battery types
• I²C interface enables advanced control and monitoring capabilities

Disadvantages

• Requires external components for complete battery charging solution
• Limited to 12-pin DFN package, may not be suitable for all space-constrained designs

Working Principles

The LTC4088EDE#PBF is a high-efficiency synchronous buck charger designed for battery charging applications. It operates by converting the input voltage to a regulated output voltage suitable for charging batteries. The charge current can be programmed through the PROG pin, allowing flexibility for different battery capacities.

The IC supports two charge termination options: C/10 or timer. The C/10 option terminates the charging process when the charge current drops to one-tenth of the programmed value. The timer option allows for a fixed charging duration before termination.

The LTC4088EDE#PBF also includes battery temperature monitoring and protection features to prevent overcharging and overheating. It has an I²C interface that enables advanced control and monitoring capabilities, such as adjusting charge parameters and reading battery status.

Detailed Application Field Plans

The LTC4088EDE#PBF is suitable for various battery charging applications, including but not limited to:

1. Portable electronic devices (e.g., smartphones, tablets)
2. Wearable devices (e.g., smartwatches, fitness trackers)
3. Wireless headphones and earbuds
4. IoT devices and sensors
5. Medical devices
6. Industrial equipment

Detailed and Complete Alternative Models

1. LTC4088EDE#TRPBF: Same specifications and features, but available in tape & reel packaging with 3000 units per reel.
2. LTC4088IDE#PBF: Similar specifications and features, but with a different pin configuration (16-pin DFN package).
3. LTC4088EDE-4.2#PBF: Same as LTC4088EDE#PBF, but specifically designed for charging batteries with a float voltage of 4.2V.

These alternative models offer similar functionality and can be considered based on specific design requirements.

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