LTC4058EDD-4.2

The LTC4058EDD-4.2 is a linear battery charger IC designed by Linear Technology (now part of Analog Devices). It is specifically tailored for charging single-cell lithium-ion or lithium-polymer batteries. The device features a fixed output voltage of 4.2V, suitable for standard lithium-ion battery charging.
Key features include:
1. High-Accuracy Charging: Provides precise voltage and current regulation, ensuring safe and efficient charging.
2. Programmable Charge Current: Allows setting the desired charging current using an external resistor.
3. Battery Temperature Monitoring: Equipped with a thermistor interface for monitoring battery temperature and ensuring charging occurs within safe temperature limits.
4. Automatic Charge Termination: Automatically stops charging once the battery reaches full charge, preventing overcharging.
5. Safety Features: Includes protections against overvoltage, undervoltage, and thermal conditions.
6. Low Quiescent Current: Ensures minimal power consumption when not actively charging.
The LTC4058EDD-4.2 is ideal for compact applications where efficient and reliable charging is needed, such as in portable electronics, wearables, and IoT devices.

The LTC4058EDD-4.2 is a linear Li-Ion battery charger. Equivalent products include the MCP73831 from Microchip, the TP4056 from NanJing Top Power ASIC Corp, and the BQ24072 from Texas Instruments. These alternatives offer similar functionality in terms of charging Li-Ion batteries, but specifications such as charging current and additional features may vary. Make sure to confirm compatibility with your specific application requirements before substituting.

The LTC4058EDD-4.2 is a standalone linear charger designed for single-cell lithium-ion batteries. Key features include:
1. Precision Charging: It offers a fixed output voltage of 4.2V, ensuring optimal charging for lithium-ion batteries.

2. Charge Current: The device can deliver a programmable charge current of up to 950mA.
3. Safety Features: Includes automatic recharge, C/10 charge termination, and a safety timer to prevent overcharging.
4. Thermal Regulation: It has thermal regulation functionality to maintain safe operation and prevent overheating.
5. Status Indicators: Provides charge status and fault indicators via open-drain outputs for easy monitoring.
6. Low Dropout Operation: With low dropout operation, it is suitable for low input voltage scenarios.
7. Compact Package: Available in a 10-lead, thermally enhanced DFN package, making it suitable for space-constrained applications.
8. Input Voltage Range: Supports an input voltage range from 4.5V to 6.5V, catering to typical USB and adapter inputs.
These features make it ideal for portable applications requiring efficient and reliable battery charging.

The LTC4058EDD-4.2 is a linear battery charger IC designed for charging single-cell lithium-ion batteries. It is housed in a 10-pin DFN (Dual Flat No-Lead) package. The device is specifically optimized for portable applications and allows for constant-current/constant-voltage charging, terminating the charge cycle when the charge current drops to 10% of the programmed value after reaching the regulation voltage. The key functions and pin descriptions are as follows:
- Pin count: 10
- Key pins and functions:
- VIN: Input supply voltage.
- GND: Ground connection.
- BAT: Connection to the battery.
- CHRG: Open-drain charge status output.
- PROG: Charge current program and charge termination.
- N/C: No connection or internally not connected.
- N/C in some versions may serve other functions related to specific IC applications.

The LTC4058EDD-4.2 provides a simple and space-efficient design, making it suitable for compact battery-powered devices.

The LTC4058EDD-4.2 is manufactured by Analog Devices, Inc. This company is a multinational corporation specializing in the design and manufacturing of analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Founded in 1965, Analog Devices serves a wide range of industries, including telecommunications, automotive, industrial, medical, consumer electronics, and more. The company is known for its high-performance analog and digital signal processing products, which are used in a variety of applications, from audio and video processing to power management and sensor interfacing. In 2017, Analog Devices acquired Linear Technology, a company focused on high-performance analog integrated circuits, which is why some of its products, such as the LTC4058EDD-4.2, may still carry the Linear Technology brand.

The LTC4058EDD-4.2 is a linear battery charger IC designed for single-cell lithium-ion batteries. It is commonly used in applications requiring efficient, compact, and reliable charging solutions. Key application areas include:
1. Portable Electronics: Ideal for devices like smartphones, tablets, and wearable tech due to its small form factor and precise charging.
2. Medical Devices: Suitable for portable medical equipment needing stable and safe charging.
3. Consumer Electronics: Used in gadgets that demand effective battery management.
4. Industrial Equipment: Facilitates charging in rugged or remote equipment.
5. Internet of Things (IoT) Devices: Supports efficient charging in IoT applications where space and power efficiency are critical.
These applications benefit from its high accuracy, low dropout voltage, and integrated safety features.

The LTC4058EDD-4.2 is packaged in a 10-lead (3mm x 3mm) DFN (Dual Flat No Leads) package. The DFN package type offers a compact and thermally efficient solution for applications that require a small footprint.