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LTC4002EDD from LT

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LTC4002EDD

Manufacturer: LT

Standalone Li-Ion Switch Mode Battery Charger

Partnumber Manufacturer Quantity Availability
LTC4002EDD LT 546 In Stock

Description and Introduction

Standalone Li-Ion Switch Mode Battery Charger The LTC4002EDD is a high-efficiency standalone switching battery charger controller manufactured by Linear Technology (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Linear Technology (LT)  
- **Part Number:** LTC4002EDD  
- **Package:** DFN-10 (3mm x 3mm)  
- **Input Voltage Range:** 4.5V to 32V  
- **Battery Voltage Range:** 1V to 32V  
- **Charge Current:** Programmable up to 4A  
- **Charging Termination:** C/10 or Timer-Based  
- **Efficiency:** Up to 96%  
- **Operating Temperature Range:** -40°C to +125°C  

### **Descriptions:**
- The LTC4002EDD is a high-performance battery charger controller designed for Li-Ion/Polymer, NiMH, and NiCd batteries.  
- It operates as a constant-current/constant-voltage charger with automatic recharge and charge termination.  
- The device includes a power MOSFET driver and integrates a high-efficiency synchronous buck converter.  

### **Features:**
- **Wide Input & Battery Voltage Range:** Supports 4.5V–32V input and 1V–32V battery.  
- **Programmable Charge Current:** Adjustable up to 4A.  
- **Automatic Recharge:** Initiates charging when battery voltage falls below a threshold.  
- **Charge Termination Options:** C/10 current detection or timer-based.  
- **Thermal Regulation:** Reduces charge current if temperature exceeds a safe limit.  
- **Battery Detection:** Ensures no battery is present before applying power.  
- **Low Dropout Operation:** Maximizes efficiency with synchronous rectification.  
- **Power Good Indicator:** Signals when charging is complete.  

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

Application Scenarios & Design Considerations

Standalone Li-Ion Switch Mode Battery Charger

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