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LTC4058XEDD-4.2#TRPBF from LT

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LTC4058XEDD-4.2#TRPBF

Manufacturer: LT

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

Partnumber Manufacturer Quantity Availability
LTC4058XEDD-4.2#TRPBF ,LTC4058XEDD42#TRPBF LT 567 In Stock

Description and Introduction

Standalone Linear Li-Ion Battery Chargers with Thermal Regulation in DFN The LTC4058XEDD-4.2#TRPBF is a lithium-ion battery charger IC manufactured by Linear Technology (now part of Analog Devices).  

### **Specifications:**  
- **Input Voltage Range:** 4.25V to 6.5V  
- **Charge Voltage:** 4.2V ±1%  
- **Charge Current:** Up to 800mA (programmable)  
- **Termination Current:** 10% of programmed charge current  
- **Preconditioning for Deeply Discharged Batteries:** Yes  
- **Charge Status Output:** Open-drain status pins (CHRG, /PG)  
- **Package:** 8-Lead DFN (3mm × 2mm)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Thermal Regulation:** Prevents overheating  
- **Automatic Recharge:** Initiates when battery voltage drops below recharge threshold  

### **Descriptions:**  
The LTC4058XEDD-4.2#TRPBF is a standalone linear charger designed for single-cell lithium-ion/polymer batteries. It integrates a precision voltage regulator, current sensing, and charge termination logic. The device operates from a USB port or an AC adapter and requires minimal external components.  

### **Features:**  
- **Programmable Charge Current** (via external resistor)  
- **No MOSFET or Blocking Diode Required**  
- **Thermal Regulation for Optimal Charge Rate**  
- **Automatic Sleep Mode** when input power is removed  
- **Battery Detection** before charging  
- **Soft-Start Limits Inrush Current**  
- **Reverse Polarity Protection** on Battery Input  
- **Compact DFN Package** for space-constrained applications  

This IC is suitable for portable devices such as smartphones, tablets, and other battery-powered electronics.

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