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LTC4059EDC from LT

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LTC4059EDC

Manufacturer: LT

900mA linear Li-ion battery charger with thermal regulation.

Partnumber Manufacturer Quantity Availability
LTC4059EDC LT 773 In Stock

Description and Introduction

900mA linear Li-ion battery charger with thermal regulation. The LTC4059EDC is a linear battery charger IC manufactured by Linear Technology (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Input Voltage Range:** 4.25V to 6.5V  
- **Charge Current:** Programmable up to 750mA  
- **Battery Voltage:** 4.2V (for single-cell Li-Ion/Polymer)  
- **Charge Termination:** C/10 (10% of programmed current)  
- **Preconditioning:** Yes (for deeply discharged batteries)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** DFN-6 (2mm × 2mm)  

### **Descriptions:**  
- The LTC4059EDC is a standalone linear charger designed for single-cell Li-Ion/Polymer batteries.  
- It integrates a thermal feedback loop to regulate charge current based on die temperature.  
- No external MOSFET, sense resistor, or blocking diode is required.  

### **Features:**  
- **Programmable Charge Current:** Set via an external resistor.  
- **Automatic Recharge:** Initiates charging if battery voltage falls below 4.1V.  
- **Thermal Regulation:** Reduces charge current to prevent overheating.  
- **Charge Status Outputs:** Open-drain outputs (CHRG and FAULT) indicate charging and fault conditions.  
- **Low Battery Preconditioning:** Trickle charges deeply discharged cells (< 2.9V).  
- **No External MOSFET or Diode Needed:** Simplifies design and reduces BOM cost.  

This information is strictly based on the manufacturer's datasheet.

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