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LTC4066EUF-1#TRPBF from LT

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LTC4066EUF-1#TRPBF

Manufacturer: LT

USB Power Manager with Low-Loss Ideal Diode and Li-Ion Battery Charger

Partnumber Manufacturer Quantity Availability
LTC4066EUF-1#TRPBF,LTC4066EUF1TRPBF LT 2568 In Stock

Description and Introduction

USB Power Manager with Low-Loss Ideal Diode and Li-Ion Battery Charger The **LTC4066EUF-1#TRPBF** is a **USB-compatible lithium-ion/polymer battery charger** manufactured by **Linear Technology (now part of Analog Devices)**.  

### **Specifications:**  
- **Input Voltage Range:** 4.35V to 6.5V (USB-compatible)  
- **Charge Current:** Up to **1A** (programmable)  
- **Battery Voltage:** 4.2V (±0.6%) for single-cell Li-Ion/Li-Polymer  
- **Charge Termination:** C/10 (10% of programmed current)  
- **Preconditioning for Deeply Discharged Batteries:** Yes  
- **Thermal Regulation:** Prevents overheating  
- **Low Battery Detection:** Automatically detects and charges deeply discharged cells  
- **Charge Status Outputs:** Open-drain outputs for charging and power-good indication  
- **Package:** 16-Lead QFN (4mm x 4mm)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
- Designed for **USB-powered applications** with automatic power source selection.  
- Supports **thermal regulation** to optimize charge rate based on temperature.  
- Includes **NTC thermistor input** for temperature-qualified charging.  
- **Automatic recharge** starts if battery voltage falls below a threshold.  

### **Features:**  
- **USB-Compliant Charging:** Works with USB power sources.  
- **Programmable Charge Current:** Adjustable via external resistor.  
- **No External MOSFET or Diode Required:** Integrated power FET and reverse-blocking diode.  
- **Automatic Power Source Selection:** Prioritizes USB or wall adapter input.  
- **Battery Detection:** Ensures no battery is present before applying power.  
- **Low Quiescent Current:** Minimizes power loss when not charging.  

This charger is commonly used in **portable devices, USB-powered gadgets, and battery-powered applications**.  

*(Source: Linear Technology/Analog Devices Datasheet)*

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