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LTC4066 from LT

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LTC4066

Manufacturer: LT

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

Partnumber Manufacturer Quantity Availability
LTC4066 LT 2960 In Stock

Description and Introduction

USB Power Manager with Low-Loss Ideal Diode and Li-Ion Battery Charger The LTC4066 is a linear battery charger manufactured by Linear Technology (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Input Voltage Range:** 4V to 6.5V  
- **Charge Current:** Programmable up to 1A  
- **Battery Voltage:** Supports 4.1V or 4.2V Li-Ion/Polymer batteries  
- **Charge Termination:** C/10 or timer-based  
- **Preconditioning:** For deeply discharged batteries  
- **Thermal Regulation:** Prevents overheating  
- **Operating Temperature Range:** -40°C to 85°C  
- **Package:** 10-Lead DFN (3mm × 3mm)  

### **Descriptions:**
- The LTC4066 is a standalone linear charger designed for single-cell Li-Ion/Polymer batteries.  
- It integrates a thermal feedback loop to optimize charge current based on temperature.  
- The device includes automatic recharge and charge termination features.  

### **Features:**
- **Standalone Operation:** No external microcontroller required.  
- **Programmable Charge Current:** Set via an external resistor.  
- **Thermal Regulation:** Adjusts charge current to maintain safe temperatures.  
- **Automatic Recharge:** Initiates charging if battery voltage falls below a threshold.  
- **Battery Detection:** Ensures no-battery condition does not draw current.  
- **Status Indicators:** Open-drain outputs for charge status (CHRG, FAULT).  
- **Low Dropout Voltage:** Efficient charging even with lower input voltages.  

For detailed application information, refer to the official datasheet.

Application Scenarios & Design Considerations

USB Power Manager with Low-Loss Ideal Diode and Li-Ion Battery Charger
Partnumber Manufacturer Quantity Availability
LTC4066 LTC 550 In Stock

Description and Introduction

USB Power Manager with Low-Loss Ideal Diode and Li-Ion Battery Charger The LTC4066 is a manufacturer part from Linear Technology (now part of Analog Devices). Below are its specifications, descriptions, and features based on factual information:

### **Specifications:**
- **Input Voltage Range:** 4V to 10V  
- **Charge Current:** Up to 1A (programmable)  
- **Battery Voltage:** 4.1V or 4.2V (selectable)  
- **Precision Charge Voltage Accuracy:** ±0.6%  
- **Charge Termination:** C/10 or Timer-Based  
- **Thermal Regulation:** Yes  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package Options:** 10-Lead DFN (3mm × 3mm)  

### **Description:**
The LTC4066 is a standalone linear battery charger designed for single-cell lithium-ion/polymer batteries. It features thermal regulation to optimize charge current based on temperature, ensuring safe and efficient charging. The device includes automatic recharge, charge termination, and bad battery detection.

### **Features:**
- **Standalone Operation:** No external microcontroller required.  
- **Programmable Charge Current:** Up to 1A with a single resistor.  
- **Selectable Charge Voltage:** 4.1V or 4.2V for different battery chemistries.  
- **Thermal Regulation:** Reduces charge current if temperature exceeds safe limits.  
- **Automatic Recharge:** Initiates charging if battery voltage falls below a threshold.  
- **Charge Status Outputs:** Indicates charging, charge complete, and fault conditions.  
- **Bad Battery Detection:** Identifies faulty or missing batteries.  
- **Low Battery Leakage Current:** <1µA when input power is removed.  
- **Small Footprint:** 10-Lead DFN package for space-constrained applications.  

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

Application Scenarios & Design Considerations

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

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