LTC3350EUHF#TRPBF

The LTC3350EUHF#TRPBF is a high-efficiency, monolithic synchronous buck-boost DC/DC converter with an integrated fault-protected battery charger. It is designed to provide power to a system load and charge a single-cell Li-Ion, Li-Polymer, or LiFePO4 battery from a variety of input sources. This versatile IC offers a compact and efficient solution for power management in portable and battery-powered applications.

Pinout

(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

• PGOOD: Power Good Indicator
• VIN: Input Power Supply
• NTC: Negative Temperature Coefficient Thermistor Input
• STAT: Status Indicator Output
• VBAT: Battery Input/Output
• TS: Temperature Sense Input
• SCL: I2C Serial Clock Input
• SDA: I2C Serial Data Input/Output
• REG: Regulated Output Voltage
• SW: Switching Node Connection for Buck-Boost Converter
• GND: Power Ground
• PGND: Power Ground

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the LTC3350EUHF#TRPBF IC for a visual representation.

Key Features

• High-Efficiency Buck-Boost Conversion: Provides efficient power conversion from input to output, accommodating a wide range of input and output voltages.
• Integrated Battery Charger: The integrated battery charger circuit allows for efficient and controlled charging of single-cell batteries.
• Fault Protection: The LTC3350EUHF#TRPBF includes comprehensive fault protection features, ensuring system reliability and safety.
• Programmable Input Current Limit: Offers the flexibility to program the input current limit to match the capabilities of the input power source.
• Programmable Output Voltage: Allows for the programming of the regulated output voltage to meet specific application requirements.
• Wide Input Voltage Range: Operates from a wide input voltage range, making it suitable for a variety of power sources.

Note: For detailed technical specifications, please refer to the LTC3350EUHF#TRPBF datasheet.

Application

• Portable Devices: Ideal for powering and charging applications in portable electronic devices, such as smartphones, tablets, and portable media players.
• Battery-Powered Systems: Suitable for power management in battery-powered systems, including wearable devices, medical monitors, and handheld instruments.
• Emergency Backup Power: Can be used to provide backup power and charging capability in emergency lighting systems, security systems, and communication devices.

Functionality

The LTC3350EUHF#TRPBF is a versatile DC/DC converter and battery charger that efficiently manages power sources, provides regulated output voltage, and enables controlled battery charging in various portable and battery-powered applications.

Usage Guide

• Power Supply: Connect VIN (Pin 2) to the input power source and VBAT (Pin 5) to the battery input/output.
• Battery Charging: Utilize the integrated battery charger feature to efficiently charge single-cell lithium batteries.
• Status Indication: Monitor the system status using the STAT (Pin 4) and PGOOD (Pin 1) indicators for operational and fault conditions.

Frequently Asked Questions

Q: What is the input voltage range supported by the LTC3350EUHF#TRPBF?
A: The LTC3350EUHF#TRPBF supports a wide input voltage range, typically from 2.7V to 20V, making it suitable for various power sources.

Q: Can the LTC3350EUHF#TRPBF charge different types of single-cell batteries?
A: Yes, the LTC3350EUHF#TRPBF can efficiently charge single-cell Li-Ion, Li-Polymer, and LiFePO4 batteries, offering versatility in battery compatibility.