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LM3420M5X-16.8 from NATIONAL,National Semiconductor

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LM3420M5X-16.8

Manufacturer: NATIONAL

Lithium-Ion Battery Charge Controller

Partnumber Manufacturer Quantity Availability
LM3420M5X-16.8,LM3420M5X168 NATIONAL 15000 In Stock

Description and Introduction

Lithium-Ion Battery Charge Controller The LM3420M5X-16.8 is a battery charge controller from **National Semiconductor** (now part of Texas Instruments).  

### **Specifications:**  
- **Part Number:** LM3420M5X-16.8  
- **Manufacturer:** National Semiconductor  
- **Package:** SOT-23-5 (M5)  
- **Function:** Lithium-Ion Battery Charge Controller  
- **Output Voltage:** 16.8V (for 4-cell Li-Ion batteries)  
- **Input Voltage Range:** Up to 36V  
- **Charge Termination:** Voltage-based (adjustable)  
- **Features:**  
  - Precision voltage reference  
  - Low standby current  
  - Thermal shutdown protection  
  - Adjustable charge current (via external resistor)  
  - Overvoltage protection  

### **Descriptions & Features:**  
- Designed for **4-cell Lithium-Ion (Li-Ion) battery packs** (16.8V fully charged).  
- Provides **accurate charge termination** to prevent overcharging.  
- Supports **constant-current/constant-voltage (CC/CV) charging** for Li-Ion batteries.  
- **Compact SOT-23-5 package** for space-constrained applications.  
- Includes **thermal shutdown** to prevent overheating.  
- **Low quiescent current** for improved efficiency.  

This IC is commonly used in **portable electronics, power tools, and industrial battery management systems**.  

Would you like additional details on application circuits or related components?

Application Scenarios & Design Considerations

Lithium-Ion Battery Charge Controller

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