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LTC1729CS8-4.2 from LT

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LTC1729CS8-4.2

Manufacturer: LT

Li-Ion Battery Charger Termination Controllers

Partnumber Manufacturer Quantity Availability
LTC1729CS8-4.2,LTC1729CS842 LT 75 In Stock

Description and Introduction

Li-Ion Battery Charger Termination Controllers The LTC1729CS8-4.2 is a linear battery charger controller manufactured by Linear Technology (now part of Analog Devices).  

### **Specifications:**  
- **Manufacturer:** LT (Linear Technology)  
- **Part Number:** LTC1729CS8-4.2  
- **Package:** SOIC-8  
- **Output Voltage:** 4.2V (fixed for single-cell Li-Ion batteries)  
- **Input Voltage Range:** 4.5V to 28V  
- **Charge Current:** Programmable via external resistor  
- **Charge Termination:** C/10 (10% of programmed current)  
- **Preconditioning Mode:** For deeply discharged cells  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions & Features:**  
- Designed for single-cell Li-Ion battery charging.  
- Constant-current/constant-voltage (CC/CV) charging algorithm.  
- No external MOSFET or blocking diode required (internal MOSFET driver).  
- Automatic recharge when battery voltage drops below a threshold.  
- Thermal regulation prevents overheating.  
- Low dropout operation for efficient charging.  
- Charge status outputs (open-drain) for monitoring.  
- Reverse battery protection.  

This IC is commonly used in portable electronics requiring precise Li-Ion battery charging.

Application Scenarios & Design Considerations

Li-Ion Battery Charger Termination Controllers

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