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LTC4058XEDD-4.2 from LINEAR

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LTC4058XEDD-4.2

Manufacturer: LINEAR

Standalone Linear Li-Ion Battery Charger with Thermal Regulation in DFN

Partnumber Manufacturer Quantity Availability
LTC4058XEDD-4.2,LTC4058XEDD42 LINEAR 69 In Stock

Description and Introduction

Standalone Linear Li-Ion Battery Charger with Thermal Regulation in DFN The LTC4058XEDD-4.2 is a linear battery charger IC manufactured by Linear Technology (now part of Analog Devices). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:  

### **Specifications:**  
- **Input Voltage Range:** 4.25V to 6.5V  
- **Charge Voltage:** 4.2V (fixed)  
- **Charge Current:** Programmable up to 800mA  
- **Charge Termination:** C/10 (10% of programmed current)  
- **Preconditioning:** Yes (for deeply discharged batteries)  
- **Battery Detection:** Automatic (no battery present detection)  
- **Thermal Regulation:** Yes (reduces charge current if overheating)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** DFN-8 (3mm × 2mm)  

### **Descriptions:**  
- The LTC4058XEDD-4.2 is a standalone linear charger designed for single-cell lithium-ion (Li-ion) or lithium-polymer (LiPo) batteries.  
- It integrates a precision voltage regulator, current sense circuit, and charge termination logic.  
- The device operates in constant-current/constant-voltage (CC/CV) mode with automatic recharge.  

### **Features:**  
- **Standalone Operation:** No external microcontroller required.  
- **Programmable Charge Current:** Set via an external resistor.  
- **Thermal Protection:** Reduces charge current to prevent overheating.  
- **Automatic Recharge:** Initiates charging if battery voltage falls below a threshold.  
- **Preconditioning Mode:** Safely charges deeply discharged batteries with a reduced current.  
- **Low Battery Leakage:** Minimal current drain when input power is removed.  
- **Small Footprint:** DFN-8 package for space-constrained applications.  

This information is based solely on the manufacturer's datasheet and technical documentation.

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