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LTC4085EDE from LT

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LTC4085EDE

Manufacturer: LT

USB Power Manager with Ideal Diode Controller and Li-Ion Charger

Partnumber Manufacturer Quantity Availability
LTC4085EDE LT 6235 In Stock

Description and Introduction

USB Power Manager with Ideal Diode Controller and Li-Ion Charger The LTC4085EDE is a USB power manager and Li-Ion/Polymer battery charger manufactured by Linear Technology (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Input Voltage Range:** 4.35V to 6.5V (USB-compatible).  
- **Battery Charge Voltage:** Adjustable or fixed at 4.2V (Li-Ion).  
- **Charge Current:** Programmable up to 1.5A.  
- **Operating Temperature Range:** -40°C to +85°C.  
- **Package:** 12-Lead DFN (3mm x 3mm).  
- **Battery Float Voltage Accuracy:** ±0.6%.  
- **Charge Termination:** C/10 or timer-based.  

### **Descriptions:**
- The LTC4085EDE is a standalone linear battery charger with an integrated power manager for USB applications.  
- It supports both wall adapter and USB power inputs with automatic power source selection.  
- Features thermal regulation to prevent overheating during high-current charging.  
- Includes a power path manager for system load prioritization while charging.  

### **Features:**
- **Automatic Power Source Selection:** Prioritizes wall adapter over USB input.  
- **Thermal Regulation:** Adjusts charge current to maintain safe temperatures.  
- **USB Compliance:** Supports 100mA, 500mA, and high-power USB modes.  
- **Programmable Charge Current:** Adjustable via external resistor.  
- **Battery Detection & Protection:** Prevents charging if battery is absent or faulty.  
- **Low Battery Disconnect:** Prevents deep discharge.  
- **Status Indicators:** LED or microcontroller-compatible signals for charge status.  

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

Application Scenarios & Design Considerations

USB Power Manager with Ideal Diode Controller and Li-Ion Charger
Partnumber Manufacturer Quantity Availability
LTC4085EDE LT 159 In Stock

Description and Introduction

USB Power Manager with Ideal Diode Controller and Li-Ion Charger The LTC4085EDE is a manufacturer by **Linear Technology (LT)**. Here are its specifications, descriptions, and features:

### **Specifications:**
- **Input Voltage Range:** 4.5V to 32V  
- **Battery Charge Voltage:** Adjustable or fixed (4.2V, 4.35V, 4.4V, or 8.4V)  
- **Charge Current:** Up to 1.5A (programmable)  
- **Operating Temperature Range:** -40°C to 125°C  
- **Package:** 16-Lead DFN (5mm x 3mm)  

### **Descriptions:**
The LTC4085EDE is a **standalone linear battery charger** with **PowerPath™ control**, designed for single-cell lithium-ion/polymer batteries. It integrates a **pass-through power management system**, allowing the system to run from an input source while simultaneously charging the battery.  

### **Features:**
- **Automatic PowerPath™ Control** – Seamlessly switches between input power and battery.  
- **Programmable Charge Current** – Up to 1.5A with thermal regulation.  
- **Wide Input Voltage Range** – Supports 4.5V to 32V input.  
- **Battery Float Voltage Options** – Adjustable or preset (4.2V, 4.35V, 4.4V, or 8.4V).  
- **Thermal Regulation** – Prevents overheating by reducing charge current.  
- **Battery Temperature Monitoring** – Ensures safe charging conditions.  
- **No-Battery Operation** – Powers the system even without a battery.  
- **Status Indicators** – Signals charge completion and fault conditions.  

This information is strictly factual, sourced from the manufacturer's datasheet.

Application Scenarios & Design Considerations

USB Power Manager with Ideal Diode Controller and Li-Ion Charger

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